ꢀꢁ ꢂꢃ ꢄꢅ ꢆꢇ ꢈꢉ ꢊ
ꢊ ꢋꢌ ꢍꢋ ꢎ ꢍ ꢏꢆ ꢐ ꢑꢒꢆ ꢓꢔ ꢒꢏ ꢕꢏꢖꢗ ꢘꢏꢐ ꢑꢒꢆꢓ ꢔ ꢒꢏ ꢕꢏ ꢖ
SCDS019L − MAY 1995 − REVISED JANUARY 2004
D
5-Ω Switch Connection Between Two Ports
D
TTL-Compatible Input Levels
D, DB, DBQ, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
V
B4
B3
B2
B1
A
NC
OE
GND
1
2
3
4
5
6
7
8
16
CC
15 B5
14 B6
13 B7
12 B8
1
16
B3
B2
B1
A
NC
OE
15
14
13
12
11
10
2
3
4
5
6
7
B5
B6
B7
B8
S0
S1
11
10
9
S0
S1
S2
8
9
NC − No internal connection
NC − No internal connection
description/ordering information
The SN74CBT3251 is a 1-of-8 high-speed TTL-compatible FET multiplexer/demultiplexer. The low on-state
resistance of the switch allows connections to be made with minimal propagation delay.
When output enable (OE) is low, the SN74CBT3251 is enabled. S0, S1, and S2 select one of the B outputs for
the A-input data.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
QFN − RGY
Tape and reel
SN74CBT3251RGYR
SN74CBT3251D
CU251
Tube
SOIC − D
CBT3251
Tape and reel
Tape and reel
SN74CBT3251DR
SN74CBT3251DBR
SN74CBT3251DBQR
SN74CBT3251PW
SN74CBT3251PWR
SSOP − DB
CU251
CU251
−40°C to 85°C
SSOP (QSOP) − DBQ Tape and reel
Tube
TSSOP − PW
CU251
Tape and reel
†
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.
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Copyright 2004, Texas Instruments Incorporated
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