ETC CBTS3257

INTEGRATED CIRCUITS
CBTS3257
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
Product data
2002 Sep 27
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
FEATURES
CBTS3257
PIN CONFIGURATION
• 5 Ω switch connection between two ports
• TTL-compatible input levels
• Schottky diodes on I/O clamp undershoot
• Minimal propagation delay through the switch
• Latch-up protection exceeds 500 mA per JESD78
• ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
S
1
16 VCC
1B1
2
15 OE
1B2
3
14 4B1
1A
4
13 4B2
2B1
5
12 4A
2B2
6
11 3B1
2A
7
10 3B2
GND
8
9
DESCRIPTION
3A
SA00533
The CBTS3257 is a quad 1-of-2 high-speed TTL-compatible
multiplexer/demultiplexer. The low on resistance of the switch allows
inputs to be connected to outputs without adding propagation delay
or generating additional ground bounce noise.
PIN DESCRIPTION
PIN NUMBER
SYMBOL
1
S
2, 3,
5, 6,
10, 11,
13, 14
1B1, 1B2,
2B1, 2B2
3B1, 3B2
4B1, 4B2
4, 7, 9, 12
1A, 2A, 3A, 4A
8
GND
Ground (0 V)
15
OE
Output enable
16
VCC
Positive supply voltage
Output Enable (OE) and select-control (S) inputs select the
appropriate B1 and B2 outputs for the A-input data.
Internal Schottky diode provides I/O undershoot protection.
The CBTS3257 is characterized for operation from –40 to +85 °C.
NAME AND FUNCTION
Select-control input
B outputs
A inputs
ORDERING INFORMATION
TEMPERATURE RANGE
ORDER CODE
TOPSIDE MARK
DWG NUMBER
16-pin plastic SO
PACKAGES
–40 to 85 °C
CBTS3257D
CBTS3257D
SOT109-1
16-pin plastic SSOP
–40 to 85 °C
CBTS3257DB
CS3257
SOT338-1
16-pin plastic SSOP (QSOP)
–40 to 85 °C
CBTS3257DS
CBS3257
SOT519-1
16-pin plastic TSSOP
–40 to 85 °C
CBTS3257PW
CBS3257
SOT403-1
Standard packing quantities and other packaging data is available at www.philipslogic.com/packaging.
2002 Sep 27
2
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
LOGIC DIAGRAM (positive logic)
FUNCTION TABLE
INPUTS
1A
4
2
3
2A
7
5
6
3A
9
11
10
4A
12
14
13
S
OE
1B1
OE
1B2
2B1
2B2
3B1
3B2
4B1
4B2
1
15
SA00532
2002 Sep 27
3
S
FUNCTION
L
L
A port = B1 port
L
H
A port = B2 port
H
X
Disconnect
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
ABSOLUTE MAXIMUM RATINGS1
PARAMETER
SYMBOL
CONDITIONS
RATING
UNIT
V
VCC
DC supply voltage
–0.5 to +7.0
VI
DC input voltage2
–0.5 to +7.0
V
128
mA
–50
mA
–65 to +150
°C
Continuous channel current
IK
Tstg
Input clamp current
VI/O < 0
Storage temperature range
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 input and output negative-voltage ratings may be exceeded if the input and output clamp-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
NOTE:
1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
A or B inputs
UNIT
MIN
TYP1
MAX
—
—
–0.8
V
—
—
–1.2
V
VIK
Input clamp voltage
VP
Pass voltage
VI = VCC = 5.0 V; I/O = –100 mA
3.4
3.6
3.9
V
Input leakage current
VCC = 5.5 V; VI = GND or 5.5 V
—
—
±1
µA
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 capacitance
VI= 3 V or 0
—
3.3
—
pF
A port
VO = 3 V or 0; OE = VCC
—
9.9
—
pF
B port
VO = 3 V or 0; OE = VCC
—
6.4
—
pF
VCC = 4.5 V; VI = 0V; II = 64 mA
—
5
7
Ω
VCC = 4.5 V; VI = 0V; II = 30 mA
—
5
7
Ω
VCC = 4.5 V; VI = 2.4 V; II = 15 mA
—
10
15
Ω
II
ICC
∆ICC
CI
CIO(OFF)
O(O )
ron3
Off capacitance
On-resistance
Control inputs
VCC = 4
4.5
5 V; II = –18
18 mA
Tamb = –40 to +85 °C
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.
2002 Sep 27
4
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
AC CHARACTERISTICS
Tamb = –40 to +85 °C; CL = 50 pF
LIMITS
SYMBOL
PARAMETER
FROM (INPUT)
TO
(OUTPUT)
VCC = +5.0 V ±0.5 V
MIN
MAX
UNIT
tpd
Propagation delay1
A or B
B or A
—
0.25
ns
tpd
Propagation delay
S
A
1.6
5.0
ns
ten
Output enable time
to High and Low level
OE
A or B
1.8
5.1
ns
S
B
1.6
5.2
ns
Output disable time
from High and Low level
OE
A or B
2.2
5.5
ns
S
B
1.0
5.0
ns
tdis
NOTE:
1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance,
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
1.5 V
500 Ω
From Output
Under Test
S1
Open
GND
INPUT
500 Ω
CL = 50 pF
0V
tPHL
tPLH
Load Circuit
VOH
1.5 V
1.5 V
OUTPUT
VOL
SA00028
Waveform 1. Input to Output 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
NOTES:
1. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
2. The outputs are measured one at a time with one transition per
measurement.
3.5 V
Output
Waveform 1
S1 at 7 V
(see Note)
1.5 V
Output
Waveform 2
S1 at Open
(see Note)
VOL + 0.3 V
VOL
tPHZ
tPZH
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
NOTES:
1. tPLZ and tPHZ are the same as tdis.
2. tPZL and tPZH are the same as ten.
3. tPLH and tPHL are the same as tpd.
2002 Sep 27
5
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
SO16: plastic small outline package; 16 leads; body width 3.9 mm
2002 Sep 27
6
SOT109-1
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm
2002 Sep 27
7
SOT338-1
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
SSOP16: plastic shrink small outline package; 16 leads;
body width 3.9 mm; lead pitch 0.635 mm
2002 Sep 27
8
SOT519-1
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
2002 Sep 27
9
SOT403-1
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
REVISION HISTORY
Rev
Date
_1
2002 Sep 27
2002 Sep 27
CBTS3257
Description
Product data (9397 750 10333); initial version
Engineering Change Notice: 853–2380 28892 (2002 Sep 10)
10
Philips Semiconductors
Product data
Quad 1-of-2 multiplexer/demultiplexer
with Schottky diode
CBTS3257
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 data sheet 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 60134). 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.
 Koninklijke Philips Electronics N.V. 2002
All rights reserved. Printed in U.S.A.
Contact information
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
Date of release: 09-02
For sales offices addresses send e-mail to:
[email protected]
Document order number:
2002 Sep 27
11
9397 750 10333