TC74ACT161F(F) - TOSHIBA - Product.Network

TC74ACT161,163P/F

2014-03-01

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74ACT161P, TC74ACT161F

TC74ACT163P, TC74ACT163F

Synchronous Presettable 4-Bit Binary Counter

TC74ACT161P/F/FN Asynchronous Clear

TC74ACT163P/F/FN Synchronous Clear

The TC74ACT161 and T163 are advanced high speed CMOS

SYNCHRONOUS PRESETTABLE 4 BIT BINARY COUNTERs

fabricated with silicon gate and double-layer metal wiring

C2MOS technology.

They achieve the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

These devices may be used as a level converter for interfacing

TTL or NMOS to High Speed CMOS. The inputs are compatible

with TTL, NMOS and CMOS output voltage levels.

The CK input is active on the rising edge. Both LOAD and

CLR inputs are active on low logic level.

Presetting of these IC’s is synchronous to the rising edge of CK.

The clear function of the TC74ACT163 is synchronous to CK,

while the TC74ACT161 are cleared asynchronously.

Two enable inputs (ENP and ENT) and CARRY OUTPUT are

provided to enable easy cascading of counters, which facilitates

easy implementation of n-bit counters without using external

gates.

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

Features

• High speed: fmax = 110 MHz (typ.) at VCC = 5 V

• Low power dissipation: ICC = 8 μA (max) at Ta = 25°C

• Compatible with TTL outputs: VIL = 0.8 V (max)

IH = 2.0 V (min)

• Symmetrical output impedance: |IOH| = IOL = 24 mA (min)

Capability of driving 50 Ω

transmission lines.

• Balanced propagation delays: tpLH ∼

−

tpHL

• Pin and function compatible with 74F161/163

TC74ACT161P, TC74ACT163P

TC74ACT161F, TC74ACT163F

Weight

DIP16-P-300-2.54A : 1.00 g (typ.)

SOP16-P-300-1.27A : 0.18 g (typ.)

Start of commercial production

1989-11

TC74ACT161,163P/F

2014-03-01

Pin Assignment

IEC Logic Symbol

TC74ACT161 TC74ACT163

Truth Table

Inputs Outputs

CLR

(161)

CLR

(163) LOAD ENP ENT CK

(161)

(163) QA QB QC QD

Function

L L X X X X L L L L Reset to “0”

H H L X X A B C D Preset Data

H H H X L No Change No Count

H H H L X No Change No Count

H H H H H Count Up Count

H X X X X No Change No Count

X: Don’t care

A, B, C, D: Logic level of data inputs

Carry: Carry = ENT･QA･QB･QC･QD

TC74ACT161,163P/F

2014-03-01

Timing Chart

TC74ACT161,163P/F

2014-03-01

System Diagram (Note)

Note: Truth table of internal F/F

TC74ACT161 TC74ACT163

D CK R Q Q D CK R Q Q

X X H L H X H L H

L L L H L L L H

H L H L X L H L

X L No Change X L No Change

X: Don’t care

(Note)

TC74ACT161,163P/F

2014-03-01

Absolute Maximum Ratings (Note 1)

Characteristics Symbol Rating Unit

Supply voltage range VCC −0.5 to 7.0 V

DC input voltage VIN −0.5 to VCC + 0.5 V

DC output voltage VOUT −0.5 to VCC + 0.5 V

Input diode current IIK ±20 mA

Output diode current IOK ±50 mA

DC output current IOUT ±50 mA

DC VCC/ground current ICC ±125 mA

Power dissipation PD 500 (DIP) (Note 2)/180 (SOP) mW

Storage temperature Tstg −65 to 150 °C

Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or

even destruction.

Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the

significant change in temperature, etc.) may cause this product to decrease in the reliability significantly

even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute

maximum ratings and the operating ranges.

Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook

(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test

report and estimated failure rate, etc).

Note 2: 500 mW in the range of Ta = −40 to 65°C. From Ta = 65 to 85°C a derating factor of −10 mW/°C should be

applied up to300 mW.

Operating Ranges (Note)

Characteristics Symbol Rating Unit

Supply voltage VCC 4.5 to 5.5 V

Input voltage VIN 0 to VCC V

Output voltage VOUT 0 to VCC V

Operating temperature Topr −40 to 85 °C

Input rise and fall time dt/dV 0 to 10 ns/V

Note: The operating ranges must be maintained to ensure the normal operation of the device.

Unused inputs must be tied to either VCC or GND.

TC74ACT161,163P/F

2014-03-01

Electrical Characteristics

DC Characteristics

Test Condition Ta = 25°C Ta =

−40 to 85°C

Characteristics Symbol

VCC (V) Min Typ. Max Min Max

Unit

High-level input

voltage VIH ⎯ 4.5 to 5.5 2.0 ⎯ ⎯ 2.0 ⎯ V

Low-level input

voltage VIL ⎯ 4.5 to 5.5 ⎯ ⎯ 0.8 ⎯ 0.8 V

High-level output

voltage VOH

VIN

= VIH or

VIL

IOH = −50 μA

IOH = −24 mA

IOH = −75 mA (Note)

4.5

5.5

4.4

3.94

⎯

4.5

⎯

4.4

3.80

3.85

⎯

Low-level output

voltage VOL

VIN

= VIH or

VIL

IOL = 50 μA

IOL = 24 mA

IOL = 75 mA (Note)

4.5

5.5

⎯

0.0

⎯

0.1

0.36

⎯

0.1

0.44

1.65

Input leakage

current IIN V

IN = VCC or GND 5.5 ⎯ ⎯ ±0.1 ⎯ ±1.0 μA

ICC V

IN = VCC or GND 5.5 ⎯ ⎯ 8.0 ⎯ 80.0 μA

Quiescent supply

current IC Per input: VIN = 3.4 V

Other input: VCC or GND 5.5 ⎯ ⎯ 1.35 ⎯ 1.5 mA

Note: This spec indicates the capability of driving 50 Ω transmission lines.

One output should be tested at a time for a 10 ms maximum duration.

Timing Requirements (input: tr = tf = 3 ns)

Test Condition Ta =

25°C

Ta =

−40 to

85°C

Characteristics Symbol

CC (V) Limit Limit

Unit

Minimum pulse width

(CK)

tW (L)

tW (H)

Figure 1 5.0 ± 0.5 5.0 5.0 ns

Minimum pulse width

(CLR ) (Note1)

tW (L) Figure 4 5.0 ± 0.5 5.0 5.0 ns

Minimum pulse width

(LOAD , ENP, ENT) ts Figure 2, Figure 3 5.0 ± 0.5 6.0 6.0 ns

Minimum set-up time

(A, B, C, D) ts Figure 2 5.0 ± 0.5 4.0 4.0 ns

Minimum set-up time

(CLR ) (Note 2)

ts Figure 5 5.0 ± 0.5 3.0 3.0 ns

Minimum hold time

(LOAD , ENP, ENT) th Figure 2, Figure 3 5.0 ± 0.5 1.0 1.0 ns

Minimum hold time

(A, B, C, D) th Figure 2 5.0 ± 0.5 2.0 2.0 ns

Minimum hold time

(CLR ) (Note 2)

th Figure 5 5.0 ± 0.5 2.0 2.0 ns

Minimum removal time

(CLR ) (Note 1)

trem Figure 4 5.0 ± 0.5 1.0 1.0 ns

Note 1: For TC74ACT161 only

Note 2: For TC74ACT163 only

TC74ACT161,163P/F

2014-03-01

AC Characteristics (CL = 50 pF, RL = 500 Ω, input: tr = tf = 3 ns)

Test Condition Ta = 25°C Ta =

−40 to 85°C

Characteristics Symbol

VCC (V) Min Typ. Max Min Max

Unit

Propagation delay

time

(CK-Q)

tpLH

tpHL

Figure 1 5.0 ± 0.5 ⎯ 7.2 10.5 1.0 12.0 ns

Propagation delay

time

(CK-CARRY, count

mode)

tpLH

tpHL

Figure 1 5.0 ± 0.5 ⎯ 8.5 13.0 1.0 15.0 ns

Propagation delay

time

(CK-CARRY, preset

mode)

tpLH

tpHL

Figure 2 5.0 ± 0.5 ⎯ 9.7 15.0 1.0 17.0 ns

Propagation delay

time

(ENT-CARRY)

tpLH

tpHL

Figure 6 5.0 ± 0.5 ⎯ 6.6 10.0 1.0 11.5 ns

Propagation delay

time (Note 2)

(CLR -Q)

tpHL Figure 4 5.0 ± 0.5 ⎯ 6.3 10.0 1.0 11.5 ns

Propagation delay

time (Note 2)

(CLR -CARRY)

tpHL Figure 4 5.0 ± 0.5 ⎯ 7.7 12.3 1.0 14.0 ns

Maximum clock

frequency fmax ⎯ 5.0 ± 0.5 70 100 ⎯ 60 ⎯ MHz

Input capacitance CIN ⎯ ⎯ 5 10 ⎯ 10 pF

Power dissipation

capacitance

CPD

(Note 1)

⎯ ⎯ 32 ⎯ ⎯ ⎯ pF

Note 1: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating

current consumption without load.

Average operating current can be obtained by the equation:

ICC (opr) = CPD･VCC･fIN + ICC

When the outputs drive a capacitive load, total current consumption is the sum of CPD, and ΔICC which is

obtained from the following formula:

)

(VfI CO

QDQCQBQA

CCCKCC ++++⋅=Δ

CQA~CQD and CCO are the capacitances at QA~QD and CARRY OUT, respectively.

fCK is the input frequency of the CK.

Note 2: for TC74ACT161 only

TC74ACT161,163P/F

2014-03-01

Switching Characteristics Test Waveform

Count Mode Clear Mode (TC74ACT161)

Preset Mode Clear Mode (TC74ACT163)

Count Enable Mode Cascade Mode (fix maximum count)

Figure 2 Figure 5

Figure 1 Figure 4

Figure 3 Figure 6

TC74ACT161,163P/F

2014-03-01

Typical Application

Parallel Carry N-Bit Counter

TC74ACT161,163P/F

2014-03-01

Package Dimensions

Weight: 1.00 g (typ.)

TC74ACT161,163P/F

2014-03-01

Package Dimensions

Weight: 0.18 g (typ.)

TC74ACT161,163P/F

2014-03-01

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