SN74CBT3257C_07 Datasheet, PDF (1/19 Pages) Texas Instruments – 4-BIR 1-OF-2 FET MULTIPLESER/DEMULTIPLEXER 5-V BUS SWITCH WITH-2-V UNDERSHOOT PROTECTION

SN74CBT3257C
4ĆBIT 1ĆOFĆ2 FET MULTIPLEXER/DEMULTIPLEXER
5ĆV BUS SWITCH WITH ć2ĆV UNDERSHOOT PROTECTION
SCDS137 − OCTOBER 2003
D Undershoot Protection for Off-Isolation on
A and B Ports Up To −2 V
D Bidirectional Data Flow, With Near-Zero
Propagation Delay
D Low ON-State Resistance (r_on)
Characteristics (r_on = 3 Ω Typical)
D Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(C_io(OFF) = 5.5 pF Typical)
D Data and Control Inputs Provide
Undershoot Clamp Diodes
D Low Power Consumption
(I_CC = 3 µA Max)
D V_CC Operating Range From 4 V to 5.5 V
D Data I/Os Support 0 to 5-V Signaling Levels
(0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)
D Control Inputs Can be Driven by TTL or
5-V/3.3-V CMOS Outputs
D I_off Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Performance Tested Per JESD 22
− 2000-V Human-Body Model
(A114-B, Class II)
− 1000-V Charged-Device Model (C101)
D Supports I²C Bus Expansion
D Supports Both Digital and Analog
Applications: USB Interface, Bus Isolation,
Low-Distortion Signal Gating
D, DB, DBQ, OR PW PACKAGE
(TOP VIEW)
S1
1B1 2
1B2 3
1A 4
2B1 5
2B2 6
2A 7
GND 8
16 V_CC
15 OE
14 4B1
13 4B2
12 4A
11 3B1
10 3B2
9 3A
RGY PACKAGE
(TOP VIEW)
1
1B1 2
1B2 3
1A 4
2B1 5
2B2 6
2A 7
8
16
15 OE
14 4B1
13 4B2
12 4A
11 3B1
10 3B2
9
description/ordering information
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QFN − RGY
Tape and reel
SN74CBT3257CRGYR CU257C
SOIC − D
Tube
Tape and reel
SN74CBT3257CD
SN74CBT3257CDR
CBT3257C
−40°C to 85°C SSOP − DB
Tape and reel
SSOP (QSOP) − DBQ Tape and reel
SN74CBT3257CDBR CU257C
SN74CBT3257CDBQR CU257C
TSSOP − PW
Tube
Tape and reel
SN74CBT3257CPW
SN74CBT3257CPWR
CU257C
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines}
are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, Texas Instruments Incorporated
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