SN74CBTLV3245 Datasheet, PDF (1/6 Pages) Texas Instruments – LOW-VOLTAGE OCTAL FET BUS SWITCH

SN74CBTLV3245
LOW-VOLTAGE OCTAL FET BUS SWITCH
D Standard ’245-Type Pinout
D 5-Ω Switch Connection Between Two Ports
D Isolation Under Power-Off Conditions
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Package Options Include Shrink
Small-Outline (DB), Thin Very Small-Outline
(DGV), Small-Outline (DW), and Thin Shrink
Small-Outline (PW) Packages
description
SCDS034F – JULY 1997 – REVISED MAY 1998
DB, DGV, DW, OR PW PACKAGE
(TOP VIEW)
NC 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
The SN74CBTLV3245 provides eight bits of
high-speed 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.
NC – No internal connection
The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on and
port A is connected to port B. When OE is high, the switch is open and a high-impedance state exists between
the two ports.
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 SN74CBTLV3245 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUT
OE
FUNCTION
L
A port = B port
H
Disconnect
logic diagram (positive logic)
2
A1
18
SW
B1
9
A8
19
OE
11
SW
B8
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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 © 1998, Texas Instruments Incorporated
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