Texas Instruments 74AHC series D-Type Transparent Latch, 8:8 circuit, tri-state outputs, 2V to 5.5V supply, 1ns propagation delay, -40°C to 85°C, 20-TVSOP package.
| Parameter | Value |
|---|---|
| Series | 74AHC |
| Logic type | D-Type Transparent Latch |
| Output type | Tri-State |
| Mounting | Surface Mount |
| Supply voltage | 2V ~ 5.5V |
| Current - output high, low | 8mA, 8mA |
| Operating temperature | -40°C ~ 85°C |
| Circuit | 8:8 |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 20-TFSOP (0.173\", 4.40mm Width) |
| Independent circuits | 1 |
| Delay time - propagation | 1ns |
It belongs in factory automation panels, outdoor telecom cabinets, and motor-drive control boards — anywhere the ambient might see a cold startup or a hot afternoon.
It's ROHS3 compliant. You can specify it into new designs without worrying about a last-time-buy window. No second-source is listed in the official records, but the 74FCT573APC is a functional equivalent if you need a through-hole alternative for legacy boards — just note the narrower temperature range and slower 8.5ns propagation.
The SN74AHC573 is the advanced high-speed CMOS version; it offers a 1ns propagation delay versus the slower HC variant. The AHC series also operates over a wider supply range (2V to 5.5V) and typically draws lower quiescent current at the same frequency.
This part is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at the time of your RFQ — no stock count or price is published here.
The 74FCT573APC is a functional equivalent with the same 8:8 D-type transparent latch and tri-state outputs, but it comes in a through-hole package, has a slower 8.5ns propagation delay, and is rated for commercial temperature (0°C to 70°C) only.