SN54ACT16373 Datasheet | Texas Instruments

SN54ACT16373, 74ACT16373 16-BIT D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS SCAS122C - MARCH 1990 - REVISED SEPTEMBER 1996 D Members of the Texas Instruments Widebust Family D Inputs Are TTL-Voltage patible D 3-State Bus Driving True Outputs D Full Parallel Access for Loading D Flow-Through Architecture Optimizes PCB Layout D Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise D EPICt (Enhanced-Performance Implanted CMOS) 1-mm Process D 500-m A Typical Latch-Up Immunity at 125°C D Package Options Include Shrink Small-Outline (DL) 300-mil Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings description The SN54ACT16373 and 74ACT16373 are 16-bit D-type transparent latches with 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. These devices can be used as two 8-bit latches or one 16-bit latch. The Q outputs of the latches follow the data (D) inputs if enable C is taken high. When C is taken low, the Q outputs are latched at the levels set up at the D inputs. SN54ACT16373 . . . WD PACKAGE 74ACT16373 . . . DL PACKAGE (TOP VIEW) 1OE 1 1Q1 2 1Q2 3 GND 4 1Q3 5 1Q4 6 VCC 7 1Q5 8 1Q6 9 GND 10 1Q7 11 1Q8 12 2Q1 13 2Q2 14 GND 15 2Q3 16 2Q4 17 VCC 18 2Q5 19 2Q6 20 GND 21 2Q7 22 2Q8 23 2OE 24 48 1C 47 1D1 46 1D2 45 GND 44 1D3 43 1D4 42 VCC 41 1D5 40 1D6 39 GND 38 1D7 37 1D8 36 2D1 35 2D2 34 GND 33 2D3 32 2D4 31 VCC 30 2D5 29 2D6 28 GND 27 2D7 26 2D8 25 2C A buffered output-enable (OE) input can be used to place the outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to...