SN74LVCR2245A Datasheet, PDF (1/9 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

D EPIC™ (Enhanced-Performance Implanted
CMOS) Submicron Process
D All Outputs Have Equivalent 26-Ω Series
Resistors, So No External Resistors Are
Required
D Typical V_OLP (Output Ground Bounce)
< 0.8 V at V_CC = 3.3 V, T_A = 25°C
D Typical V_OHV (Output V_OH Undershoot)
> 2 V at V_CC = 3.3 V, T_A = 25°C
D Power Off Disables Outputs, Permitting
Live Insertion
D Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
3.3-V V_CC)
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages
SN74LVCR2245A
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS581D – NOVEMBER 1996 – REVISED JUNE 1998
DB, DW, OR PW PACKAGE
(TOP VIEW)
DIR 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
description
This octal bus transceiver is designed for 1.65-V to 3.6-V V_CC operation.
The SN74LVCR2245A is designed for asynchronous communication between data buses. The device
transmits data 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 the buses are
effectively isolated.
W All outputs, which are designed to sink up to 12 mA, include equivalent 26- resistors to reduce overshoot and
undershoot.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
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 SN74LVCR2245A is characterized for operation from –40°C to 85°C.
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 is a trademark of 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.
Copyright © 1998, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1