CBT16211
24-bit bus switch with 12-bit output enables
Product data 2001 Jun 13
INTEGRATED CIRCUITS
Philips Semiconductors Product data
CBT1621124-bit bus switch with 12-bit output enables
2
2001 Jun 13 853-2259 26502
FEATURES
•5 Ω switch connection between two ports
•TTL compatible control input levels
•Package options include plastic shrink small outline (SSOP),
thin shrink small outline (TSSOP)
•ESD protection exceeds 1000 V CDM per JESD22-C101
•Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
DESCRIPTION
The CBT16211 provides 24 bits of high-speed TTL-compatible bus
switching. The low on-state resistance of the switch allows
connections to be made with minimal propagation delay.
The device is organized as a dual 12-bit bus switch with separate
output-enable (OE) inputs. It can be used as two 12-bit bus switches
or as one 24-bit bus switch. When OE is low, the associated 12-bit
bus switch is on, and port A is connected to port B. When OE is
high, the switch is open, and a high-impedance state exists between
the ports.
The CBT16211 is characterized for operation from –40 to 85 °C.
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS
Tamb = 25 °C; GND = 0 V TYPICAL UNIT
tPLH
tPHL Propagation delay
An to Yn CL = 50 pF; VCC = 5 V 0.25 ns
CIN Input capacitance VI = 0 V or VCC 4.3 pF
COUT Output capacitance Outputs disabled; VO = 0 V or VCC 6.9 pF
ICC Total supply current Outputs disabled; VCC = 5.5 V 3.0 µA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE ORDER CODE DWG NUMBER
56-Pin Plastic SSOP Type III –40 to 85 °C CBT16211DL SOT371-1
56-Pin Plastic TSSOP Type II –40 to 85 °C CBT16211DGG SOT364-1
FUNCTION TABLE
INPUTS OUTPUTS
1OE 2OE 1A, 1B 2A, 2B
L L 1A = 1B 2A = 2B
L H 1A = 1B Z
H L Z 2A = 2B
H H Z Z
H = High voltage level
L = Low voltage level
Z = High impedance “of f” state
LOGIC SYMBOL
1A1
1A12
2A1
2A12
1B1
1B12
2B1
2B12
2
14
54
42
15
28
41
29
55
56
SA00510
2OE
1OE
Philips Semiconductors Product data
CBT1621124-bit bus switch with 12-bit output enables
2001 Jun 13 3
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
21
22
23
24
49
50
51
52
53
54
55
56
25
26
27
28
32
31
30
29
NC
1A1
1A2
1A3
1A4
1A5
1A6
GND
1A7
1A8
1A9
1A10
1A11
1A12
2A1
2A2
VCC
2A3
GND
2A4
2A5
2A6
2A7
2A8
2A9
2A10
2A11
2A12
1OE
2OE
1B1
1B2
1B3
1B4
1B5
GND
1B6
1B7
1B8
1B9
1B10
1B11
1B12
2B1
2B2
2B3
GND
2B4
2B5
2B6
2B7
2B8
2B9
2B10
2B11
2B12
SA00509
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
1 NC No internal connection
56, 55 1OE, 2OE Output Enables
2, 3, 4, 5, 6, 7, 9, 10,
11, 12, 13, 14 1A1-1A12 Inputs
54, 53, 52, 51, 50, 48,
47, 46, 45, 44, 43, 42 1B1-1B12 Outputs
15, 16, 18, 20, 21, 22,
23, 24, 25, 26, 27, 28 2A1-2A12 Inputs
41, 40, 39, 37, 36, 35,
34, 33, 32, 31, 30, 29 2B1-2B12 Outputs
8, 19, 38, 49 GND Ground (0 V)
17 VCC Positive supply voltage
Philips Semiconductors Product data
CBT1621124-bit bus switch with 12-bit output enables
2001 Jun 13 4
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL PARAMETER CONDITIONS RATING UNIT
VCC DC supply voltage –0.5 to +7.0 V
IIK DC input diode current VI < 0 –50 mA
VIDC input voltage3–0.5 to +7.0 V
VOUT DC output voltage3output in Off or High state –0.5 to +5.5 V
IOUT DC output current output in Low state 128 mA
Tstg Storage temperature range –65 to 150 °C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150 °C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
SYMBOL
PARAMETER
Min Max
UNIT
VCC DC supply voltage 4.5 5.5 V
VIH High-level input voltage 2.0 — V
VIL Low-level Input voltage — 0.8 V
Tamb Operating free-air temperature range –40 +85 °C
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER TEST CONDITIONS Tamb = –40 to +85 °C UNIT
Min Typ1Max
VIK Input clamp voltage VCC = 4.5 V; II = –18 mA — — –1.2 V
VPOutput high pass voltage VIN = VCC = 5.0 V ; IOUT = –100 µA 3.4 3.6 3.9 V
I
In
p
ut leakage current
VCC = 0 V ; VI = 5.5 V — — 10
µA
I
I
Inp
u
t
leakage
c
u
rrent
VCC = 5.5 V ; VI = GND or 5.5 V — — ±1µ
A
ICC Quiescent supply current VCC = 5.5 V; IO = 0, VI = VCC or GND — — 3 µA
∆ICC Additional supply current per
input pin2VCC = 5.5 V, one input at 3.4 V,
other inputs at VCC or GND — — 2.5 mA
CIControl pins VI= 3 V or 0 — 4.5 — pF
CI(OFF) Port OFF capacitance VO = 3 V or 0, OE = VCC — 6.9 — pF
3
VCC = 4.0 V ; V1 = 2.4 V; II = 15 mA — 14 20
r3
VCC = 4.5 V ; V1 = 0 V; II = 64 mA — 5 7
Ω
r
on
3
VCC = 4.5 V ; V1 = 0 V; II = 30 mA — 5 7
Ω
VCC = 4.5 V ; V1 = 2.4 V; II = –15 mA — 8 12
NOTES:
1. All typical values are at VCC = 5 V, Tamb = 25 °C.
2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
3. Measured by the voltage drop between the A and the B terminals at the indicated current through the switch.
On-state resistance is determined by the lowest voltage of the two (A or B) terminals.
Philips Semiconductors Product data
CBT1621124-bit bus switch with 12-bit output enables
2001 Jun 13 5
AC CHARACTERISTICS
GND = 0 V ; tR; CL = 50 pF
SYMBOL
PARAMETER
FROM TO VCC = 5.0 V ±0.5 V
UNIT
SYMBOL
PARAMETER
(INPUT) (OUTPUT) Min Max
UNIT
tpd Propagation delay1A or B B or A — 0.25 ns
ten Output enable time
to High and Low level OE A or B 1.5 6.0 ns
tdis Output disable time
from High and Low level OE A or B 1.5 6.0 ns
NOTE:
1. This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical on-state
resistance of the switch and a load capacitance of 50 pF, when driven by an ideal voltage source (zero output impedance).
AC WAVEFORMS
VM = 1.5 V, VIN = GND to 3.0 V.
INPUT 1.5 V
OUTPUT
tPLH tPHL
SA00028
1.5 V
1.5 V 1.5 V
3 V
0 V
VOH
VOL
W aveform 1. Input (An) to Output (Yn) Propagation Delays
Output Control
(Low-level
enabling )
1.5 V
tPZH tPHZ VOH
VOL
tPZL tPLZ 3.5 V
0 V
VOL + 0.3 V
VOH – 0.3 V
SA00029
1.5 V
1.5 V 1.5 V
0 V
3 V
Output
Waveform 1
S1 at 7 V
(see Note)
Note:
Waveform 1 is for an output with internal conditions such that
the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that
the output is high except when disabled by the output control.
Output
Waveform 2
S1 at Open
(see Note)
W aveform 2. 3-State Output Enable and Disable Times
TEST CIRCUIT AND WAVEFORMS
CL = 50 pF 500 Ω
Load Circuit
DEFINITIONS
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
TEST S1
tpd open
tPLZ/tPZL 7 V
tPHZ/tPZH open
SA00012
500 Ω
From Output
Under Test
S1 7 V
Open
GND
Philips Semiconductors Product data
CBT1621124-bit bus switch with 12-bit output enables
2001 Jun 13 6
SSOP56: plastic shrink small outline package; 56 leads; body width 7.5 mm SOT371-1
Philips Semiconductors Product data
CBT1621124-bit bus switch with 12-bit output enables
2001 Jun 13 7
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1 mm SOT364-1
Philips Semiconductors Product data
CBT1621124-bit bus switch with 12-bit output enables
2001 Jun 13 8
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may af fect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury . Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 2001
All rights reserved. Printed in U.S.A.
Date of release: 06-01
Document order number: 9397 750 08481
Data sheet status[1]
Objective data
Preliminary data
Product data
Product
status[2]
Development
Qualification
Production
Definitions
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
This data sheet contains data from the preliminary specification. Supplementary data will be
published at a later date. Philips Semiconductors reserves the right to change the specification
without notice, in order to improve the design and supply the best possible product.
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply.
Changes will be communicated according to the Customer Product/Process Change Notification
(CPCN) procedure SNW-SQ-650A.
Data sheet status
[1] Please consult the most recently issued datasheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on
the Internet at URL http://www .semiconductors.philips.com.
