TEXAS INSTRUMENTS 54AC16244 74AC16244 DATA SHEET

54AC16244, 74AC16244 16-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCAS120A – MARCH 1990 – REVISED APRIL 1996 Members of the Texas Instruments 54AC16244 WD PACKAGE

74AC16244 DGG OR DL PACKAGE

Widebus Family

(TOP VIEW)

3-State Outputs Drive Bus Lines or Buffer Memory Address Registers 1OE 2OE

Flow-Through Architecture Optimizes PCB 1Y1 1A1 Layout 1Y2 1A2 GND GND

Distributed VCC and GND Configuration

Minimizes High-Speed Switching Noise 1Y3 1A3 1Y4 1A4

EPIC  (Enhanced-Performance Implanted

VCC VCC

CMOS) 1-
m Process

500-m A Typical Latch-Up Immunity at

GND GND

Package Options Include Plastic 300-mil

Shrink Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages Using 25-mil

Center-to-Center Pin Spacings, and 380-mil

Fine-Pitch Ceramic Flat (WD) Packages

GND GND

Using 25-mil Center-to-Center Pin Spacings

description

VCC VCC The ’AC16244 are 16-bit buffers/line drivers 4Y1 4A1 designed specifically to improve both the 4Y2 4A2 performance and density of 3-state memory GND GND address drivers, clock drivers, and bus-oriented 4Y3 4A3

receivers and transmitters. They can be used as 4Y4 4A4 four 4-bit buffers, two 8-bit buffers, or one 16-bit 4OE 3OE buffer. These devices provide true outputs and symmetrical active-low output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. The 74AC16244 is packaged in the TI’s shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The 54AC16244 is characterized for operation over the full military temperature range of –55°C to 125°C. The 74AC16244 is characterized for operation from –40°C to 85°C.

FUNCTION TABLE (each driver) INPUTS OUTPUT OE

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  1996, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information 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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