Overview
The MC74HC373ADWG, produced by onsemi, is an Octal 3-State Non-Inverting Transparent Latch. This device is part of the high-performance silicon-gate CMOS family and is identical in pinout to the LS373. It features eight transparent D-type latches, making it suitable for a variety of digital logic applications. The device is compatible with standard CMOS outputs and, with pull-up resistors, can also interface with LSTTL outputs. The MC74HCT373A version can be used as a level converter for interfacing TTL or NMOS outputs to High-Speed CMOS inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 2.0 to 6.0 | V |
| DC Input Voltage (VIN) | −0.5 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | −0.5 to VCC + 0.5 | V |
| Operating Free-Air Temperature (TA) | −55 to +125 | °C |
| Input Rise or Fall Time (tr, tf) | 0 to 1000 ns (depending on VCC) | ns |
| Maximum Propagation Delay, Input D to Q | 21 to 190 ns (depending on VCC) | ns |
| Maximum Propagation Delay, Latch Enable to Q | 24 to 210 ns (depending on VCC) | ns |
| Power Dissipation Capacitance (Per Enabled Output) | 36 pF | pF |
| Maximum Quiescent Supply Current (ICC) | −1.0 to 1.0 μA | μA |
| Maximum Three-State Leakage Current (IOZ) | ±10 μA | μA |
Key Features
- Output Drive Capability: 15 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V (HC), 4.5 to 5.5 V (HCT)
- Low Input Current: 1.0 μA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the JEDEC Standard No. 7.0 A Requirements
- Chip Complexity: 196 FETs or 49 Equivalent Gates
- Pb-Free and RoHS Compliant
Applications
The MC74HC373ADWG is suitable for various digital logic applications, including:
- Memory Address Latching
- Input/Output Buffering
- Level Conversion between TTL and CMOS
- General Purpose Latching in Digital Systems
Q & A
- What is the operating voltage range of the MC74HC373ADWG?
The operating voltage range is 2.0 to 6.0 V for the HC version and 4.5 to 5.5 V for the HCT version.
- What is the maximum propagation delay from input D to Q?
The maximum propagation delay ranges from 21 to 190 ns, depending on the supply voltage.
- Can the MC74HC373ADWG interface with TTL outputs?
- What is the maximum quiescent supply current?
The maximum quiescent supply current is −1.0 to 1.0 μA.
- Is the MC74HC373ADWG Pb-Free and RoHS Compliant?
- What is the chip complexity of the MC74HC373ADWG?
The chip complexity is 196 FETs or 49 equivalent gates.
- What are the typical applications of the MC74HC373ADWG?
- What is the maximum three-state leakage current?
- What are the package options for the MC74HC373ADWG?
- What is the operating free-air temperature range?
