AS7C31026-25JC - Alliance Semiconductor

ALLIANCE SEMICONDUCTOR 1

High Performance

64K×16

CMOS SRAM

AS7C1026

AS7C31026

Features

• Organization: 65,536 words × 16 bits

• High speed

- 12/15/20/25 ns address access time

- 6/8/10/12 ns output enable access time

• Low power consumption

- Active: 1100 mW max (25 ns cycle, 5V)

- Standby:28 mW max, CMOS I/O

- Very low DC component in active power

• 2.0V data retention

• Equal access and cycle times

• Easy memory expansion with CE, OE inputs

• TTL-compatible, three-state I/O

• 44-pin JEDEC standard package

- 400 mil SOJ

- 400 mil TSOP II

• Center power and ground pins for low noise

• ESD protection ≥ 2000 volts

• Latch-up current ≥ 200 mA

• Industrial temperature range available (-40 to +85 °C)

• 3.3V version available (AS7C31026)

Logic block diagram

64K × 16

Array

WE Column decoder

Row decoder

Vcc

GND

A10

A11

A12

A13

A14

A15

Control circuit

I/O0–I/O7

I/O8–I/O15

I/O

buffer

Pin arrangement

I/O13

I/O12

GND

VCC

I/O11

I/O10

I/O9

I/O8

A10

A11

I/O0

I/O1

I/O2

I/O3

VCC

GND

I/O4

I/O5

I/O6

I/O7

A15

A14

A13

SOJ, TSOP

A12

I/O15

I/O14

2A3 3A2 4A1

1A4

44 A6

Selection guide

Shaded areas contain advance information.

7C1026-12

–

7C1026-15

7C31026-15

7C1026-20

7C31026-20

7C1026-25

7C31026-25 Unit

Maximum address access time 12 15 20 25 ns

Maximum output enable access time 6 8 10 12 ns

Maximum operating current AS7C1026 230 210 190 170 mA

AS7C31026 – 180 160 140 mA

Maximum CMOS standby current 5555mA

64K×16 CMOS SRAM

Preliminary information

AS7C1026

AS7C31026

Preliminary information

Functional description

The AS7C1026 and AS7C31026 are high performance CMOS 1,048,576-bit Static Random Access Memories (SRAM) organized as 65,536

words × 16 bits. They are designed for memory applications where fast data access, low power, and simple interfacing are desired.

Equal address access and cycle times (tAA, tRC, tWC) of 12/15/20/25 ns with output enable access times (tOE) of 6/8/10/12 ns are ideal for

high performance applications. The chip enable input CE permits easy memory expansion with multiple-bank memory systems.

When CE is High the device enters standby mode. The AS7C1026 is guaranteed not to exceed 28 mW power consumption in CMOS standby

mode. This device also offers 2.0V data retention.

A write cycle is accomplished by asserting write enable (WE) and chip enable (CE). Data on the input pins I/O0-I/O15 is written on the

rising edge of WE (write cycle 1) or CE (write cycle 2). To avoid bus contention, external devices should drive I/O pins only after outputs

have been disabled with output enable (OE) or write enable (WE).

A read cycle is accomplished by asserting output enable (OE) and chip enable (CE), with write enable (WE) High. The chip drives I/O pins

with the data word referenced by the input address. When either chip enable or output enable is inactive, or write enable is active, output

drivers stay in high-impedance mode.

The devices provide multiple center power and ground pins, and separate byte enable controls, allowing individual bytes to be written and

read. LB controls the lower bits, I/O0–I/O7, and UB controls the higher bits, I/O8–I/O15.

All chip inputs and outputs are TTL-compatible, and operation is from a single 5V supply (AS7C1026) or 3.3V supply (AS7C31026). Both

devices are packaged in common industry standard packages.

Absolute maximum ratings

NOTE: Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional

operation of the device at these or any other conditions outside those indicated in the operational sections of this specification is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect reliability.

Truth table

Key: X = don’t care, L = Low, H = High

Parameter Symbol Min Max Unit

Voltage on any pin relative to GND Vt–1 +7.0 V

Power dissipation PD–1.0W

Storage temperature (plastic) Tstg –55 +150 oC

Temperature under bias Tbias –10 +85 oC

DC output current Iout –50mA

CE WE OE LB UB I/O0–I/O7 I/O8–I/O15 Mode

H X X X X High Z High Z Standby

LHLLHD

OUT High Z Read I/O0–I/O7

L H L H L High Z DOUT Read I/O8–I/O15

LHLLLD

OUT DOUT Read I/O0–I/O15

LLXLLD

IN DIN Write I/O0–I/O15

LLXLHD

IN High Z Write I/O0–I/O7

L L X H L High Z DIN Write I/O8–I/O15

HHigh Z High Z Output disable

AS7C1026

AS7C31026

Preliminary information

Recommended operating conditions

† VIL min = –3.0V for pulse width less than tRC/2.

DC operating characteristics

Shaded areas contain advance information

Capacitance

Parameter Symbol Min Typ Max Unit

Supply voltage

AS7C1026 VCC 4.5 5.0 5.5 V

AS7C31026 VCC 3.0 3.3 3.6 V

GND 0.0 0.0 0.0 V

Input voltage

AS7C1026 VIH 2.2 – VCC + 0.5 V

AS7C31026 VIH 2.0 – VCC + 0.5 V

VIL –0.5†–0.8V

Ambient operating temperature Commercial TA0 – 70 °C

Industrial TA-40 – 85 °C

Parameter Symbol Test conditions

-12 -15 -20 -25

Unit

Min Max Min Max Min Max Min Max

Input leakage

current | ILI | 0V ≤ Vin ≤ VCC –5–5–5–5µA

Output leakage

current | ILO | Outputs disabled

0V ≤ Vout ≤ VCC –5–5–5–5µA

Operating power

supply current ICC CE ≤ VIL, VCC = Max, outputs

open, f = fMax = 1/tRC

AS7C1026 – 230 – 210 – 190 – 170 mA

AS7C31026 –– – 180 – 160 – 140 mA

Standby

power supply

current

ISB CE ≤ VIL, VCC = Max,

outputs open, f = fMax = 1/tRC

–70 – 60 – 50 – 40 mA

ISB1

CE ≥ VCC–0.2V, VCC = Max,

Vin ≤ GND + 0.2V or

Vin ≥ VCC - 0.2V, f = 0

–5–5–5–5mA

Output voltage VOL IOL = 8 mA, VCC = Min – 0.4 – 0.4 – 0.4 – 0.4 V

VOH IOH = –4 mA, VCC = Min 2.4 –2.4–2.4–2.4– V

Parameter Symbol Signals Test conditions Max Unit

Input capacitance CIN A, CE, WE, OE, LB, UB Vin = 0V 5 pF

I/O capacitance CI/O I/O Vin = Vout = 0V 7 pF

AS7C1026

AS7C31026

Preliminary information

Read cycle 3,9

Shaded areas contain advance information.

Key to switching waveforms

Read waveform 1 3,6,7,9

Read waveform 2 3,6,8,9

Parameter Symbol

-12 -15 -20 -25

Unit NotesMin Max Min Max Min Max Min Max

Read cycle time tRC 12 – 15 – 20 – 25 – ns

Address access time tAA –12 – 15 – 20 – 25 ns 3

Chip enable (CE) access time tACE –12 – 15 – 20 – 25 ns 3

Output enable (OE) access time tOE –6–8–10–12ns

Output hold from address change tOH 4–4–4–4–ns 5

CE Low to output in low Z tCLZ 0–0–0–0–ns4, 5

CE High to output in high Z tCHZ –6–6–8–8ns4, 5

OE Low to output in low Z tOLZ 0–0–0–0–ns4, 5

Byte select access time tBA –6–8–10–12ns

Byte select Low to Low-Z tBLZ 0–0–0–0–ns4,5

Byte select High to HI-Z tBHZ –6–6–8–8ns4,5

OE High to output in high Z tOHZ –6–6–8–8ns4, 5

Power up time tPU 0–0–0–0–ns4, 5

Power down time tPD –12 – 15 – 20 – 25 ns 4, 5

AAA

AAAA

AAA

Undefined output/don’t care

AAA

AAAA

AAA

Falling input

AAA

AAAA

AAA

Rising input

AAAA

AAA

tOH

tAA

tRC

tOH

Data out

Address

Data validPrevious data valid

AAAA

AAA

AAAA

Data valid

tRC

tAA

tBLZ

tBA

tOE

tOLZ tOH

tOHZ

tHZ

tBHZ

tACE

tLZ

Address

LB, UB

Data out

AS7C1026

AS7C31026

Preliminary information

Write cycle 11

Shaded areas contain advance information.

Write waveform 1 10,11

Write waveform 210,11

Parameter Symbol

-12 -15 -20 -25

Unit Notes

Min Max Min Max Min Max Min Max

Write cycle time tWC 12 –15–20–25– ns

Chip enable (CE) to write end tCW 10 –12–13–15– ns

Address setup to write end tAW 9–10–12–14– ns

Address setup time tAS 0–0–0–0– ns

Write pulse width tWP 9–10–12–14– ns

Address hold from end of write tAH 0–0–0–0– ns

Data valid to write end tDW 6–8–10–10– ns

Data hold time tDH 0–0–0–0– ns 5

Write enable to output in high Z tWZ –6–6–8–8 ns 4, 5

Output active from write end tOW 1–1–2–2– ns 4, 5

Byte select Low to end of write tBW 9–9–12–14– ns

AAAA

Address

LB, UB

Data in

Data out

tWC

tCW

tBW

tAW

tAS tWP

tDW tDH

tOW

tWZ

tWR

Data undefined HI-Z

Data valid

AAAA

Address

LB, UB

Data in

tWC

tCW

tBW

tWP

tDW tDH

tOW

tWZ

tWR

Data out Data undefined

HI-Z HI-Z

tAS

tAW

Data valid

tCLZ

AS7C1026

AS7C31026

Preliminary information

Data retention characteristics 13

Data retention waveform

AC test conditions

Notes

1 During VCC power-up, a pull-up resistor to VCC on CE is required to meet ISB specification.

2 This parameter is sampled and not 100% tested.

3 For test conditions, see AC Test Conditions, Figures A, B, C.

4 These parameters are specified with CL = 5pF as in Figure C. Transition is measured ±500mV from steady-state voltage.

5 This parameter is guaranteed but not tested.

6WE

is High for read cycle.

7CE

and OE are Low for read cycle.

8 Address valid prior to or coincident with CE transition Low.

9 All read cycle timings are referenced from the last valid address to the first transitioning address.

10 CE or WE must be High during address transitions.

11 All write cycle timings are referenced from the last valid address to the first transitioning address.

12 This data applicable to AS7C1026 only. The AS7C31026 functions similarly.

13 2V data retention applies to commercial temperature range operation only.

Parameter Symbol Test conditions Min Max Unit

VCC for data retention VDR VCC = 2.0V

CE ≥ VCC–0.2V

Vin ≥ VCC–0.2V or

Vin ≤ 0.2V

2.0 – V

Data retention current ICCDR –500µA

Chip deselect to data retention time tCDR 0–ns

Operation recovery time tRtRC –ns

Input leakage current | ILI | –1µA

AAAA

AAA

AAAA

AAA

tCDR

Data retention mode

4.5V 4.5V

VDR ≥ 2.0V

VIH VIH

VDR

255Ω5 pF*

480Ω

Dout

GND

+5V

Figure C: Output load for tCLZ, tCHZ,

- Output load: see Figure B, except as noted.

- Input pulse level: GND to 3.0V. See Figure A.

- Input rise and fall times: 2 ns. See Figure A.

- Input and output timing reference levels: 1.5V.

168Ω

Thevenin E q uivalent:

Dout +1.728V

255Ω30 pF*

480Ω

Dout

GND

+5V

Figure B: Output load

*including sco pe

10%

90%

10%

90%

GND

+3.0V

and jig capacitance

Figure A: Inpu t pulse tOLZ, tOHZ, tOW

2ns

AS7C1026

AS7C31026

Preliminary information

Typical DC and AC characteristics 12

Supply voltage (V)

4.0 5.5 6.0

5.04.5

0.0

0.2

0.6

0.8

0.4

1.0

1.2

1.4

Normalized ICC, ISB

Normalized supply current ICC, ISB

Ambient temperature (°C)

–55 80 125

35–10

0.0

0.2

0.6

0.8

0.4

1.0

1.2

1.4

Normalized ICC, ISB

Normalized supply current ICC, ISB

vs. ambient temperature Ta

vs. supply voltage VCC

ICC

ISB

ICC

ISB

Ambient temperature (°C)

-55 80 125

35-10

0.2

0.04

625

Normalized ISB1 (log scale)

Normalized supply current ISB1

vs. ambient temperature Ta

VCC = 5.0V

Supply voltage (V)

4.0 5.5 6.0

5.04.5

0.8

0.9

1.1

1.2

1.0

1.3

1.4

1.5

Normalized access time

Normalized access time tAA

Ambient temperature (°C)

–55 80 125

35–10

0.8

0.9

1.1

1.2

1.0

1.3

1.4

1.5

Normalized access time

Normalized access time tAA

Cycle frequency (MHz)

075

100

5025

0.0

0.2

0.6

0.8

0.4

1.0

1.2

1.4

Normalized ICC

Normalized supply current ICC

vs. ambient temperature Tavs. cycle frequency 1/tRC, 1/tWC

vs. supply voltage VCC

VCC = 5.0V

Ta = 25°C

VCC = 5.0VTa = 25°C

Output voltage (V)

0.0 3.75 5.0

2.51.25

100

120

140

Output source current (mA)

Output source current IOH

Output voltage (V)

0.0 3.75 5.0

2.51.25

Output sink current (mA)

Output sink current IOL

vs. output voltage VOL

vs. output voltage VOH

100

120

140

VCC = 5.0V

Ta = 25°C

VCC = 5.0V

Ta = 25°C

Capacitance (pF)

0750

1000

500250

Change in tAA (ns)

Typical access time change ∆tAA

vs. output capacitive loading

VCC = 4.5V

AS7C1026

AS7C31026

Preliminary information

AS7C1026 ordering codes

Shaded areas contain advance information.

AS7C1026 part numbering system

Package \ Access time 12 ns 15 ns 20 ns 25 ns

Plastic SOJ, 400 mil

5V commercial AS7C1026-12JC AS7C1026-15JC AS7C1026-20JC AS7C1026-25JC

5V industrial – AS7C1026-15JI AS7C1026-20JI AS7C1026-25JI

3.3V commercial – AS7C31026-15JC AS7C31026-20JC AS7C31026-25JC

TSOP II, 18.4×10.2 mm 5V commercial – AS7C1026-15TC AS7C1026-20TC AS7C1026-25TC

3.3V commercial – AS7C31026-15TC AS7C31026-20TC AS7C31026-25TC

AS7C X 1026 –XX X C

SRAM

prefix

Blank = 5V CMOS

3 = 3.3V CMOS

Device

number

Access

time

Package: J = SOJ 400 mil

T = TSOP type 2, 18.4×10.2 mm

Temperature range,

C = Commercial: 0°C to 70°C

I = Industrial: -40°C to 85°C

AS7C1026

AS7C31026

DOMESTIC REPS

ALABAMA

Concord Component Reps

190 Lime Quarry, Suite #102

Madison, AL 35758

(205) 772-8883

ARKANSAS

Southern States Marketing

1702 N. Collins Blvd., Suite

#250

Richardson, TX 75080

(214) 238-7500

CALIFORNIA

North:

Brooks Technical Group

883 N. Shoreline Blvd.

Mountain View, CA 94043

(415) 960-3880

South:

Action Technical Sales

2137 Newcastle Avenue

Cardiff, CA 92007-1824

(619) 634-1488

Competitive Technology

16253 Laguna Canyon Road

Suite #160

Irvine, CA 92718.

(714) 450-0170

COLORADO

Technology Sales

1720 South Bellaire Street

Suite #910

Denver, CO 80222

(303) 692-8835

CONNECTICUT

Kitchen & Kutchin Associates

154 State St.

North Haven, CT 06473

(203) 239-0212

DELAWARE

Electro Tech

621 E. Germantown Pike,

Suite #202

Norristown, PA 19401-2454

(610) 272-2125

FLORIDA

Micro-Electronic Components

Corp.

400 Fairway Drive, Suite #107

Deerfield Beach, FL 33441

(954) 426-8944

Micro-Electronic Components

Corp.

822 Riverbend Blvd.

Longwood, FL 32779

(407) 682-9602

Micro-Electronic Components

Corp.

10637 Harborside Drive, North

Largo, FL 34643

(813) 393-5011

GEORGIA

Concord Component Reps

6825 Jimmy Carter Blvd. 1303

Norcross, GA 30071

(770) 416-9597

HAWAII

Brooks Technical Group

883 N. Shoreline Blvd.

Mountain View, CA 94043

(415) 960-3880

IDAHO

ES/Chase

6655 SW Hampton, Suite #120

Tigard, OR 97223

(503) 684-8500

ILLINOIS

El-Mech

3511 N. Cicero Avenue

Chicago, IL 60641

(312) 794-9100

CenTech

3751 Pennridge Dr., Suite #107

Bridgeton, MO 63044

(314) 291-4230

INDIANA

CC Electro Sales

1843 N. Meridian Street

Indianapolis, IN 46202-1411

(317) 921-5000

KANSAS

CenTech

10312 East 63rd Terrace

Raytown, MO 64133

(816) 358-8100

KENTUCKY

CC Electro Sales

1843 N. Meridian Street

Indianapolis, IN 46202-1411

(317) 921-5000

LOUISIANA

Southern States Marketing

13831 NW Freeway, Suite #151

Houston, TX 77040

(713) 895-8533

Southern States Marketing

1702 N. Collins Blvd., Suite

#250

Richardson, TX 75080

(214) 238-7500

MAINE

Kitchen & Kutchin Associates

87 Cambridge Street

Burlington, MA 01803

(617) 229-2660

MARYLAND

Chesapeake Technology

3905 National Drive, Suite #425

Burtonsville, MD 20866

(301) 236-0530

MASSACHUSETTS

Kitchen & Kutchin Associates

87 Cambridge Street

Burlington, MA 01803

(617) 229-2660

MICHIGAN

Enco Group

799 Industrial Court

Bloomfield Hills, MI 48302

(810) 338-8600

MINNESOTA

D.A. Case Associates

4620 W. 77th Street Suite #250

Minneapolis, MN 55435

(612) 831-6777

MISSOURI

CenTech

3751 Pennridge Dr., Suite #107

Bridgeton, MO 63044

(314) 291-4230

CenTech

10312 East 63rd Terrace

Raytown, MO 64133

(816) 358-8100

MISSISSIPPI

Concord Component Reps

190 Lime Quarry, Suite #102

Madison, AL 35758

(205) 772-8883

MONTANA

ES/Chase

6655 SW Hampton, Suite #120

Tigard, OR 97223

(503) 684-8500

NEBRASKA

CenTech

10312 East 63rd Terrace

Raytown, MO 64133

(816) 358-8100

NEVADA

Brooks Technical Group

883 N. Shoreline Blvd.

Mountain View, CA 94043

(415) 960-3880

NEW HAMPSHIRE

Kitchen & Kutchin Associates

87 Cambridge Street

Burlington, MA 01803

(617) 229-2660

NEW JERSEY

ERA Associates

354 Veterans Memorial Hwy

Commack, NY 11725

(800) 645-5500

Electro Tech

621 E. Germantown Pike

Suite #202

Norristown, PA 19401-2454

(610) 272-2125

NEW YORK

ERA Associates

354 Veterans Memorial Hwy

Commack, NY 11725

(516) 543-0510

Tri-Tech Electronics

1043 Front Street

Binghamton, NY 13905

(607) 722-3580

Tri-Tech Electronics

349 W. Commercial Street

Suite #2585

East Rochester, NY 14445

(716) 385-6500

NORTH CAROLINA

Concord Component Reps

10608 Dunhill Terrace

Raleigh, NC 27615

(919) 846-3441

NORTH DAKOTA

D.A. Case Associates

4620 W. 77th Street Suite #250

Minneapolis, MN 55435

(612) 831-6777

OHIO

Midwest Marketing Associates

5001 Mayfield Road Suite #319

Lyndhurst, OH 44124

(216) 381-8575

Midwest Marketing Associates

30 Marco Lane

Dayton, OH 45458

(513) 433-2511

OKLAHOMA

Southern States Marketing

1702 N. Collins Blvd., Suite

#250

Richardson, TX 75080

(214) 238-7500

OREGON

ES/Chase

6655 SW Hampton, Suite #120

Tigard, OR 97223

(503) 684-8500

PENNSYLVANIA

Electro Tech

621 E. Germantown Pike

Suite #202

Norristown, PA 19401-2454

(610) 272-2125

Midwest Marketing Associates

5001 Mayfield Road Suite #319

Lyndhurst, OH 44124

(216) 381-8575

RHODE ISLAND

Kitchen & Kutchin Associates

87 Cambridge Street

Burlington, MA 01803

(617) 229-2660

SOUTH CAROLINA

Concord Component Reps

10608 Dunhill Terrace

Raleigh, NC 27615

(919) 846-3441

SOUTH DAKOTA

D.A. Case Associates

4620 W. 77th Street

Suite #250

Minneapolis, MN 55435

(612) 831-6777

TENNESSEE

Concord Component Reps

190 Lime Quarry, Suite #102

Madison, AL 35758

(205) 772-8883

TEXAS

Southern States Marketing

400 Anderson Lane

Suite #118

Austin, TX 78752

(512) 835-5822

Southern States Marketing

13831 NW Freeway

Suite #151

Houston, TX 77040

(713) 895-8533

Southern States Marketing

1702 N. Collins Blvd.

Suite #250

Richardson, TX 75080

(214) 238-7500

UTAH

Charles Fields & Associates

103 East 650 North

Bountiful, UT 84010

(801) 299-8228

VERMONT

Kitchen & Kutchin Associates

87 Cambridge Street

Burlington, MA 01803

(617) 229-2660

VIRGINIA

Chesapeake Technology

3905 National Drive

Suite #425

Burtonsville, MD 20866

(301) 236-0530

WASHINGTON

ES/Chase

12025 115th Avenue NE

Suite #200

Kirkland, WA 98034

(206) 823-9535

WEST VIRGINIA

Chesapeake Technology

3905 National Drive

Suite #425

Burtonsville, MD 20866

(301) 236-0530

WISCONSIN

D.A. Case Associates

4620 W. 77th Street

Suite #250

Minneapolis, MN 55435

(612) 831-6777

WYOMING

Technology Sales

1720 South Bellaire Street

Suite #910

Denver, CO 80222

(303) 692-8835

INTERNATIONAL

REPS

AUSTRALIA

ACD

14 Melrich Road, Unit 1

Bayswater, Victoria 3153

+61-3-9762-7644

R&D Electronics

4 Plane Tree Avenue

Dingley, Victoria 3172

+61-3-9558-0444

CANADA

J-Squared Technologies

4170 Still Creek Dr. Suite #200

Burnaby, British Columbia

V5C 6C6

(604) 473-4666

J-Squared Technologies

2723 37th Avenue NE

Suite #206

Calgary, Alberta T1Y 5R8

(403) 291-6755

J-Squared Technologies

300 March Road, Wuite 501

Kanata, Ontario K2K 2E2

(613) 592-9540

J-Squared Technologies

3395 American Dr.

Bldg. 306 Unit 2

Mississauga, Ontario L4V 1T4

(905) 672-2030

J-Squared Technologies

100 Alexis Nihon, Suite #960

St. Laurent, Quebec H4M 4P5

(514) 747-1211

EUROPE

Brit Comp Sales Ltd.

1 Brooklands Road

Weybridge, Surrey

KIT13 0SD England

+44-1932 347077

+44-1932 346256

Munich, Germany

+49-894488496

Athismons, France

+33-1-69387678

interACTIVE

Epos House

263 Heage Road

Ripley, Derbyshire

DE5 3GH England

+44-1773-740263

Ramtec Int’l B.V.

Holland, Spain, Italy

Belgium, Hungary, Russia

+31-2526-21222

HONG KONG

Eastele Technology, Ltd.

A16, 6/F.,

Proficient Ind Centre

6 Wang Kwun Road

Kowloon Bay

+852-2798-8860

INDIA

Priya Electronics

San Jose, CA USA

(408) 954-1866

Satcom Sales and Services

201/2, 2nd Floor,

Azam Complex

Shivam Road, Baghamberpet

Hyderabad 500 013

+91-40-761-4675

ISRAEL

Eldis Technologies

36 Kehilat St.

Herzlia 46382 Israel

+972-9-562-666

JAPAN

Bussan Micro Electronics Corp.

Sowa Gotanda Bldg.

7-18, Higashi Gotanda

2-Chome

Shinagawa-ku, Tokyo 141

+81-3-5421-1730

Rohm Corporation

R&D Division/

Advanced Tech 21-

Saiin Mizosaki-cho Ukyo-ku

Kyoto 615

+81-75-311-2121

KOREA

FM Korea

6th Fl. Bando Bldg.

48-1, Banpo-dong, Seocho-ku

Seoul 137 140 Korea

+822-596-3880

fm@ktnet.co.kr

Woo Young Tech Co., Ltd.

5th Floor Koami Bldg., 13-31

Yoido-dong, Youngdeungpo-ku

Seoul, Korea

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