SN74CBTLV3257RSVR Datasheet, PDF (1/23 Pages) Texas Instruments – Low-Voltage 4-Bit 1-of-2 FET Multiplexer/Demultiplexer

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SN74CBTLV3257
SCDS040J – DECEMBER 1997 – REVISED JANUARY 2013
Low-Voltage 4-Bit 1-of-2 FET Multiplexer/Demultiplexer
Check for Samples: SN74CBTLV3257
FEATURES
1
• 5-Ω Switch Connection Between Two Ports
• Rail-to-Rail Switching on Data I/O Ports
• Ioff Supports Partial-Power-Down Mode
Operation
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
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
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
RSV PACKAGE
(TOP VIEW)
OEB 13
VCC 14
SEL 15
1B1 16
12 1 1 10 9
1
23
4
1B2 1A 2B1 2B2
8 3B2
7 3A
6 _GND
5 2A
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.
This device is fully specified for partial-power-down applications using I_off. The Ioff feature ensures that damaging
current will not backflow through the device when it is powered down. The device has isolation during power off.
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.
T_A
–40°C to 85°C
ORDERING INFORMATION
PACKAGE^{(1) (2)}
ORDERABLE PART NUMBER
QFN – RSV
Reel of 3000
SN74CBTLV3257RSVR
QFN – RGY
Reel of 3000
SN74CBTLV3257RGYR
SOIC – D
Tube of 40
Reel of 2500
SN74CBTLV3257D
SN74CBTLV3257DR
SSOP (QSOP) – DBQ Reel of 2500
SN74CBTLV3257DBQR
TSSOP – PW
Reel of 2000
SN74CBTLV3257PWR
TVSOP – DGV
Reel of 2000
SN74CBTLV3257DGVR
TOP-SIDE MARKING
ZTR
CL257
CBTLV3257
CL257
CL257
CL257
(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
1
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1997–2013, Texas Instruments Incorporated