MC74VHC373: Octal D-Type Latch with 3-State Output
The MC74VHC373 is an advanced high speed CMOS octal latch with 3-state output fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. This 8-bit D-type latch is controlled by a latch enable input and an output enable input. When the output enable input is high, the eight outputs are in a high impedance state. The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7V, allowing the interface of 5V systems to 3V systems.
Features- High Speed: tPD = 5.0ns (Typ) at VCC = 5V
- Low Power Dissipation: ICC = 4µA (Max) at TA = 25 C
- High Noise Immunity: VNIH = VNIL = 28% VCC
- Power Down Protection Provided on Inputs
- Balanced Propagation Delays
- Designed for 2V to 5.5V Operating Range
- Low Noise: VOLP = 0.9V (Max)
- Pin and Function Compatible with Other Standard Logic Families
- Latchup Performance Exceeds 300mA
- ESD Performance: HBM > 2000V; Machine Model > 200V
- Chip Complexity: 186 FETs or 46.5 Equivalent Gates
- Pb-Free Packages are Available*
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Data Sheets (1)
Package Drawings (2)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| MC74VHC373DTR2G | Active | Pb-free
Halide free | TSSOP-20 | 948E-02 | 1 | Tape and Reel | 2500 | $0.2667 |
| MC74VHC373DWR2G | Active | Pb-free
Halide free | SOIC-20W | 751D-05 | 3 | Tape and Reel | 1000 | $0.2667 |
Specifications
| Product | Type | Channels | VCC Min (V) | VCC Max (V) | tpd Max (ns) | IO Max (mA) |
|---|
| MC74VHC373DTR2G | Latch | 8 | 2 | 5.5 | 9.2 | 8 |
| MC74VHC373DWR2G | Latch | 8 | 2 | 5.5 | 9.2 | 8 |
