SN74CBT3345_16 Datasheet, PDF (1/16 Pages) Texas Instruments – 8-BIT FET BUS SWITCH

SN74CBT3345
8ĆBIT FET BUS SWITCH
D Standard ’245-Type Pinout
D 5-Ω Switch Connection Between Two Ports
D TTL-Compatible Input Levels
description/ordering information
The SN74CBT3345 provides eight bits of
high-speed TTL-compatible bus switching in a
standard ’245 device pinout. The low on-state
resistance of the switch allows connections to be
made with minimal propagation delay.
The device is organized as one 8-bit switch bank
with dual output-enable (OE and OE) inputs.
When OE is low or OE is high, the switch is on, and
port A is connected to port B. When OE is high and
OE is low, the switch is open, and the
high-impedance state exists between the two
ports.
SCDS027I − MAY 1995 − REVISED JANUARY 2004
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
OE ¹
A1 ²
A2 ³
A3 ⁴
A4 ⁵
A5 ⁶
A6 ⁷
A7 ⁸
A8 ⁹
GND ¹⁰
20 V_CC
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − DW
Tube
Tape and reel
SN74CBT3345DW
SN74CBT3345DWR
CBT3345
SSOP − DB
Tape and reel SN74CBT3345DBR CU345
−40°C to 85°C SSOP (QSOP) − DBQ Tape and reel SN74CBT3345DBQR CBT3345
TSSOP − PW
Tube
Tape and reel
SN74CBT3345PW
SN74CBT3345PWR
CU345
TVSOP − DGV
Tape and reel SN74CBT3345DGVR CU345
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design}
guidelines are available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
OE
OE
FUNCTION
H
X
A port = B port
X
L
A port = B port
L
H
Disconnect
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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.
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Copyright  2004, Texas Instruments Incorporated
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