SN74CBTLV3257 Datasheet, PDF (1/6 Pages) Texas Instruments – LOW-VOLTAGE 4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER

SN74CBTLV3257
LOW-VOLTAGE 4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER
D Functionally Equivalent to QS3257
D 5-Ω Switch Connection Between Two Ports
D Isolation Under Power-Off Conditions
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D Package Options Include Thin Very
Small-Outline (DGV), Small-Outline (D),
Shrink Small-Outline (DBQ), and Thin
Shrink Small-Outline (PW) Packages
SCDS040D – DECEMBER 1997 – REVISED NOVEMBER 1999
D, DBQ, DGV, 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
description
The SN74CBTLV3257 is a 4-bit 1-of-2 high-speed FET multiplexer/demultiplexer. The low on-state resistance
of the switch allows connections to be made with minimal propagation delay.
The select (S) input controls the data flow. The FET multiplexers/demultiplexers are disabled when the
output-enable (OE) input is high.
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN74CBTLV3257 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
OE
S
FUNCTION
L
L A port = B1 port
L
H A port = B2 port
H
X
Disconnect
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 © 1999, Texas Instruments Incorporated
1