SN74ALVC16245
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS419D – JANUARY 1993 – REVISED AUGUST 1995
DGG OR DL PACKAGE
(TOP VIEW)
EPIC (Enhanced-Performance Implanted
CMOS) Submicron Process
Member of the Texas Instruments
Widebus Family
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48
47
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1DIR
1B1
1B2
GND
1B3
1B4
1OE
1A1
1A2
GND
1A3
1A4
2
ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015; Exceeds
200 V Using Machine Model
(C = 200 pF, R = 0)
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4
5
6
Latch-Up Performance Exceeds 250 mA
Per JEDEC Standard JESD-17
7
V
V
CC
CC
8
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
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Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages
description
The SN74ALVC16245 16-bit (dual-octal)
noninverting bus transceiver is designed for 2.3-V
V
V
CC
CC
2B5
2B6
GND
2B7
2B8
2A5
2A6
GND
2A7
2A8
2OE
to 3.6-V V
and 3.3-V V
operation; it is tested at 2.5-V, 2.7-V,
CC
.
CC
The SN74ALVC16245 is designed for
asynchronous communication between data
buses. The control-function implementation
minimizes external timing requirements.
2DIR
This device can be used as two 8-bit transceivers
or one 16-bit transceiver. It allows data
transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the
direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses
are effectively isolated.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVC16245 is available in TI’s shrink small-outline (DL) and thin shrink small-outline (DGG)
packages, which provide twice the I/O pin count and functionality of standard small-outline packages in the
same printed-circuit-board area.
The SN74ALVC16245 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each 8-bit section)
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
A data to B bus
Isolation
L
H
H
X
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.
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
Copyright 1995, 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.
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265