INTEGRATED CIRCUITS
CBT16211
24-bit bus switch with 12-bit output enables
Product data
2001 Jun 13
Philips Semiconductors
Product data
24-bit bus switch with 12-bit output enables
FEATURES
CBT16211
DESCRIPTION
• 5 Ω switch connection between two ports
• TTL compatible control input levels
• Package options include plastic shrink small outline (SSOP),
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.
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
The CBT16211 is characterized for operation from –40 to 85 °C.
QUICK REFERENCE DATA
SYMBOL
CONDITIONS
Tamb = 25 °C; GND = 0 V
PARAMETER
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
LOGIC SYMBOL
INPUTS
OUTPUTS
2
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
54
1A1
1B1
14
42
1A12
H = High voltage level
L = Low voltage level
Z = High impedance “off ” state
1B12
56
1OE
15
41
2B1
2A1
28
2A12
29
2B12
55
2OE
SA00510
2001 Jun 13
2
853-2259 26502
Philips Semiconductors
Product data
24-bit bus switch with 12-bit output enables
PIN CONFIGURATION
PIN DESCRIPTION
PIN NUMBER
SYMBOL
1
NC
NAME AND FUNCTION
No internal connection
NC
1
56 1OE
1A1
2
55 2OE
56, 55
1OE, 2OE
Output Enables
1A2
3
54 1B1
Inputs
4
53 1B2
2, 3, 4, 5, 6, 7, 9, 10,
11, 12, 13, 14
1A1-1A12
1A3
1A4
5
52 1B3
54, 53, 52, 51, 50, 48,
47, 46, 45, 44, 43, 42
1B1-1B12
Outputs
1A5
6
51 1B4
1A6
7
50 1B5
15, 16, 18, 20, 21, 22,
23, 24, 25, 26, 27, 28
2A1-2A12
Inputs
GND
8
49 GND
1A7
48 1B6
41, 40, 39, 37, 36, 35,
34, 33, 32, 31, 30, 29
2B1-2B12
Outputs
9
1A8 10
47 1B7
8, 19, 38, 49
GND
Ground (0 V)
1A9 11
46 1B8
17
VCC
Positive supply voltage
1A10 12
45 1B9
1A11 13
44 1B10
1A12 14
43 1B11
2A1 15
42 1B12
2A2 16
41 2B1
VCC 17
40 2B2
2A3 18
39 2B3
GND 19
38 GND
2A4 20
37 2B4
2A5 21
36 2B5
2A6 22
35 2B6
2A7 23
34 2B7
2A8 24
33 2B8
2A9 25
32 2B9
2A10 26
31 2B10
2A11 27
30 2B11
2A12 28
29 2B12
SA00509
2001 Jun 13
CBT16211
3
Philips Semiconductors
Product data
24-bit bus switch with 12-bit output enables
CBT16211
ABSOLUTE MAXIMUM RATINGS1, 2
PARAMETER
SYMBOL
VCC
CONDITIONS
RATING
DC supply voltage
IIK
DC input diode current
VI
DC input voltage3
VI < 0
voltage3
VOUT
DC output
IOUT
DC output current
UNIT
–0.5 to +7.0
V
–50
mA
–0.5 to +7.0
V
output in Off or High state
–0.5 to +5.5
V
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
LIMITS
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
–40
+85
°C
Tamb
Operating free-air temperature range
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Tamb = –40 to +85 °C
UNIT
Min
Typ1
Max
VIK
Input clamp voltage
VCC = 4.5 V; II = –18 mA
—
—
–1.2
V
VP
Output high pass voltage
VIN = VCC = 5.0 V; IOUT = –100 µA
3.4
3.6
3.9
V
VCC = 0 V; VI = 5.5 V
—
—
10
VCC = 5.5 V; VI = GND or 5.5 V
—
—
±1
Quiescent supply current
VCC = 5.5 V; IO = 0, VI = VCC or GND
—
—
3
µA
Additional supply current per
input pin2
VCC = 5.5 V, one input at 3.4 V,
other inputs at VCC or GND
—
—
2.5
mA
Control pins
VI= 3 V or 0
—
4.5
—
pF
Port OFF capacitance
VO = 3 V or 0, OE = VCC
—
6.9
—
pF
VCC = 4.0 V; V1 = 2.4 V; II = 15 mA
—
14
20
VCC = 4.5 V; V1 = 0 V; II = 64 mA
—
5
7
VCC = 4.5 V; V1 = 0 V; II = 30 mA
—
5
7
VCC = 4.5 V; V1 = 2.4 V; II = –15 mA
—
8
12
II
ICC
∆ICC
CI
CI(OFF)
ron3
Input leakage current
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.
2001 Jun 13
4
µA
Ω
Philips Semiconductors
Product data
24-bit bus switch with 12-bit output enables
CBT16211
AC CHARACTERISTICS
GND = 0 V; tR; CL = 50 pF
SYMBOL
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
A or B
VCC = 5.0 V ±0.5 V
UNIT
Min
Max
B or A
—
0.25
ns
tpd
Propagation delay1
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
TEST CIRCUIT AND WAVEFORMS
VM = 1.5 V, VIN = GND to 3.0 V.
7V
3V
1.5 V
500 Ω
From Output
Under Test
1.5 V
S1
Open
GND
INPUT
500 Ω
CL = 50 pF
0V
tPLH
tPHL
Load Circuit
VOH
1.5 V
1.5 V
OUTPUT
VOL
SA00028
Waveform 1. Input (An) to Output (Yn) Propagation Delays
TEST
S1
tpd
open
tPLZ/tPZL
7V
tPHZ/tPZH
open
DEFINITIONS
Load capacitance includes jig and probe capacitance;
CL =
see AC CHARACTERISTICS for value.
3V
Output Control
(Low-level
enabling )
1.5 V
SA00012
1.5 V
0V
tPLZ
tPZL
3.5 V
Output
Waveform 1
S1 at 7 V
(see Note)
1.5 V
VOL
tPHZ
tPZH
Output
Waveform 2
S1 at Open
(see Note)
VOL + 0.3 V
VOH
VOH – 0.3 V
1.5 V
0V
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.
SA00029
Waveform 2. 3-State Output Enable and Disable Times
2001 Jun 13
5
Philips Semiconductors
Product data
24-bit bus switch with 12-bit output enables
SSOP56: plastic shrink small outline package; 56 leads; body width 7.5 mm
2001 Jun 13
6
CBT16211
SOT371-1
Philips Semiconductors
Product data
24-bit bus switch with 12-bit output enables
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1 mm
2001 Jun 13
7
CBT16211
SOT364-1
Philips Semiconductors
Product data
24-bit bus switch with 12-bit output enables
CBT16211
Data sheet status
Data sheet status [1]
Product
status [2]
Definitions
Objective data
Development
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.
Preliminary data
Qualification
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.
Product data
Production
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.
[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.
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 affect 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.
Copyright Philips Electronics North America Corporation 2001
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Date of release: 06-01
Document order number:
2001 Jun 13
8
9397 750 08481