Texas Instruments 74HC series SN74HC573APWR, D-Type Transparent Latch, 8:8 circuit, Tri-State output, 2V ~ 6V supply, 23ns propagation delay, -40°C ~ 85°C, 20-TSSOP surface mount.
| Parameter | Value |
|---|---|
| Series | 74HC |
| Logic type | D-Type Transparent Latch |
| Output type | Tri-State |
| Mounting | Surface Mount |
| Supply voltage | 2V ~ 6V |
| Current - output high, low | 7.8mA, 7.8mA |
| Operating temperature | -40°C ~ 85°C |
| Circuit | 8:8 |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 20-TSSOP (0.173\", 4.40mm Width) |
| Independent circuits | 1 |
| Delay time - propagation | 23ns |
The SN74HC573APWR is an octal D-type transparent latch from the 74HC series. It holds eight bits while latch-enable is high, and tri-state outputs allow bus sharing. Supply range is 2V to 6V.
No production-status uncertainty here; it's a standard catalog item suitable for both prototyping and production BOMs.
The primary difference is the package: SN74HC573APWR is a surface-mount 20-TSSOP, while SN74HC573AN is a through-hole DIP package. Both share the same 74HC logic family, 2V–6V supply, 23ns propagation delay, and -40°C to 85°C temperature range. The choice depends on board assembly method.