Datasheet

SN74ALVC164245
16-BIT 3.3-V TO 5-V LEVEL SHIFTING TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS416F – MARCH 1994 – REVISED FEBRUARY 1999
5–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D Member of the Texas Instruments
Widebus Family
D EPIC  (Enhanced-Performance Implanted
CMOS) Submicron Process
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages
description
This 16-bit (dual-octal) noninverting bus
transceiver contains two separate supply rails;
B port has V
CCB
, which is set at 5 V, and A port has
V
CCA
, which is set to operate at 3.3 V. This allows
for translation from a 3.3-V to a 5-V environment
and vice versa.
The SN74ALVC164245 is designed for
asynchronous communication between data
buses.
To ensure the high-impedance state during power
up or power down, the output-enable (OE
) input
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 SN74ALVC164245 is characterized for
operation from –40°C to 85°C.
FUNCTION TABLE
(each 8-bit section)
INPUTS
OE
DIR
OPERATION
L L B data to A bus
L H A data to B bus
H X Isolation
Copyright  1999, Texas Instruments Incorporated
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.
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
DGG OR DL PACKAGE
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1DIR
1B1
1B2
GND
1B3
1B4
(5 V) V
CCB
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
(5 V) V
CCB
2B5
2B6
GND
2B7
2B8
2DIR
1OE
1A1
1A2
GND
1A3
1A4
V
CCA
(3.3 V)
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
V
CCA
(3.3 V)
2A5
2A6
GND
2A7
2A8
2OE