74ACT11593
8-BIT BINARY COUNTER
WITH PARALLEL-INPUT REGISTERS AND 3-STATE OUTPUTS

SCAS203 - JUNE 1992 - REVISED APRIL 1993

features

• Inputs Are TTL-Voltage Compatible
• Parallel Register Inputs/Binary Counter/3-State Outputs
• Counter Has Direct Overriding Load and Clear
• Flow-Through Architecture Optimizes PCB Layout
• Center-Pin V_CC and GND Configurations Minimize High-Speed Switching Noise
• EPIC^TM (Enhanced-Performance Implanted CMOS) 1-m Process
• 500-mA Typical Latch-Up Immunity at 125°C
• Package Options Include Plastic Small-Outline Packages and Standard Plastic 300-mil DIPs

  EPIC is a trademark of Texas Instruments Incorporated.

   

description

The 74ACT11593 contains eight multiplexed parallel I/Os with 3-state output capability and an 8-bit storage register that feeds an 8-bit binary counter. Both the register and the counter have individual positive-edge triggered clocks.

The function tables show the operation of the counter clock-enable (CCKEN, CCKEN\) and output-enable (OE,) inputs.

The counter input has direct load and clear functions. A low-goingpulse is obtained when the counter reaches the hex word FF.

Expansion is easily accomplished for two stages by connectingof the first stage to CCKEN\ of the second stage. Cascading for larger count chains is accomplished by connectingof each stage to CCK of the following stage.

The 74ACT11593 is characterized for operation from -40°C to 85°C.