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.
●A buffered output-enable 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 drive bus lines in a bus-organized system without need for interface or pullup components.
●does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
●The 74ACT16373 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 SN54ACT16373 is characterized for operation over the full military temperature range of -55°C to 125°C. The 74ACT16373 is characterized for operation from -40°C to 85°C.
● Members of the Texas Instruments WidebusTM Family
● Inputs Are TTL-Voltage Compatible
● 3-State Bus Driving True Outputs
● Full Parallel Access for Loading
● Flow-Through Architecture Optimizes PCB Layout
● Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise
● EPICTM (Enhanced-Performance Implanted CMOS) 1-m Process
● 500-mA Typical Latch-Up Immunity at 125°C
● 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
●EPIC and Widebus are trademarks of Texas Instruments Incorporated.
