ic datasheet pdf-74act16240,pdf(16-bit buffers_drivers).pdf

SN54ACT16240, 74ACT16240
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS137C – JULY 1989 – REVISED NOVEMBER 1996
D Members of the Texas Instruments SN54ACT16240 . . . WD PACKAGE
Widebus Family 74ACT16240 . . . DL PACKAGE
(TOP VIEW)
D Inputs Are TTL-patible
D
3-State Outputs Drive Bus Lines or Buffer 1OE 1 48 2OE
Memory Address Registers
1Y1 2 47 1A1
D Flow-Through Architecture Optimizes 1Y2 3 46 1A2
PCB Layout GND 4 45 GND
D Distributed VCC and GND Pin Configuration 1Y3 5 44 1A3
Minimizes High-Speed Switching Noise 1Y4 6 43 1A4
D EPIC (Enhanced-Performance Implanted VCC 7 42 VCC
CMOS) 1-µm Process 2Y1 8 41 2A1
2Y2 2A2
D 500-mA Typical Latch-Up Immunity at 9 40
125°C GND 10 39 GND
2Y3 11 38 2A3
D Package Options Include Plastic 300-mil
2Y4 12 37 2A4
Shrink Small-Outline (DL) Packages Using
3Y1 13 36 3A1
25-mil Center-to-Center Pin Spacings and
3Y2 14 35 3A2
380-mil Fine-Pitch Ceramic Flat (WD)
GND 15 34 GND
Packages Using 25-mil Center-to-Center
3Y3 16 33 3A3
Spacings
3Y4 17 32 3A4
description VCC 18 31 VCC
4Y1 19 30 4A1
The SN54ACT16240 and 74ACT16240 are 16-bit 4Y2 20 29 4A2
buffers or line drivers designed specifically to GND 21 28 GND
improve both the performance and density of 4Y3 22 27 4A3
3-state memory address drivers, clock drivers, 4Y4 23 26 4A4
and bus-oriented receivers and transmitters. The 4OE 24 25 3OE
devices can be used as four 4-bit buffers, two 8-bit
buffers, or one 16-bit buffer. These devices
provide inverting outputs and symmetrical
active-low output-enable (OE) inputs.
The 74ACT16240 is packaged in 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 SN54ACT16240 is characterized for operation over the full military temperature range of –55°C to 125°C.
The 74ACT16240 is characterized for operation from –40°C to 85°C.
FUNCTION TABL