74ACT323 Datasheet – 8-Bit Universal Shift/Storage Register
Package DIP, SOIC 20 Pin Type Series 74ACT
74ACT323 overview
The 74ACT323 is an 8-Bit Universal Shift/Storage Register made by Texas Instruments, supplied in these packages: DIP, SOIC 20 Pin Type. The absolute maximum ratings table on this page lists the 9 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the 74ACT323 pinout and maximum ratings, with the full datasheet PDF to preview below or download.
The ACT323 is an 8-bit universal shift/storage register with 3-STATE outputs. Parallel load inputs and flip-flop outputs are multiplexed to minimize pin count. Separate serial inputs and outputs are provided for Q0 and Q7 to allow easy cascading. Four operation modes are possible: hold (store), shift left, shift right and parallel load.
Datasheet
74act323-datasheet.pdf
74ACT323 features
- CC and IOZ reduced by 50%
- Common parallel I/O for reduced pin count
- Additional serial inputs and outputs for expansion
- Four operating modes: shift left, shift right, load and store
- 3-STATE outputs for bus-oriented applications
- Outputs source/sink 24 mA
- TTL-compatible inputs
74ACT323 pinout
| Name | Description |
|---|---|
| CP | Clock Pulse Input |
| DS0 | Serial Data Input for Right Shift |
| DS7 | Serial Data Input for Left Shift |
| S0, S1 | Mode Select Inputs |
| SR | Synchronous Reset Input |
| OE1, OE2 | 3-STATE Output Enable Inputs |
| I/O0 - I/O7 | Multiplexed Parallel Data Inputs or 3-STATE Parallel Data Outputs |
| Q0 - Q7 | Serial Outputs |
Absolute maximum ratings
| Parameter | Value |
|---|---|
| Supply Voltage (VCC) | -0.5V to +7.0V |
| DC Input Diode Current (IIK) VI = -0.5V VI = VCC + 0.5V | -20 mA+20 mA |
| DC Input Voltage (VI) | -0.5V to VCC + 0.5V |
| DC Output Diode Current (IOK) VO = -0.5V VO = VCC + 0.5V | -20 mA+20 mA |
| DC Output Voltage (VO) | -0.5V to V CC + 0.5V |
| DC Output Source or Sink Current (IO) | ±50 mA |
| DC VCC or Ground Current Per Output Pin (ICC or IGND) | ±50 mA |
| Storage Temperature (TSTG) | -65°C to +150°C |
| PDIP | 140°C |
74ACT323 applications
- Multiplexing Circuits
- Address Decoding
- Memory Addressing
- Bus Switching
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