Overview
The SN74HC373NSRE4 is an octal transparent D-type latch produced by Texas Instruments. This component is part of the HC series, known for its high-speed CMOS logic and wide operating voltage range. The device features eight high-current latches in a single package, making it suitable for various applications requiring data storage and transfer.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2 | 5 | 6 | V |
| VIH High-Level Input Voltage (VCC = 2 V) | 1.5 | 1.5 | V | |
| VIH High-Level Input Voltage (VCC = 4.5 V) | 3.15 | 3.15 | V | |
| VIH High-Level Input Voltage (VCC = 6 V) | 4.2 | 4.2 | V | |
| VIL Low-Level Input Voltage (VCC = 2 V) | 0.5 | 0.5 | V | |
| VIL Low-Level Input Voltage (VCC = 4.5 V) | 1.35 | 1.35 | V | |
| VIL Low-Level Input Voltage (VCC = 6 V) | 1.8 | 1.8 | V | |
| Typical tpd (Propagation Delay) | 13 | ns | ||
| Output Drive at 5 V | ±6 | mA | ||
| ICC (Quiescent Current) | 80 | µA | ||
| TJ Junction Temperature | 150 | °C |
Key Features
- Wide operating voltage range of 2 V to 6 V
- High-current 3-state true outputs can drive up to 15 LSTTL loads
- Low power consumption, with a maximum ICC of 80 µA
- Typical propagation delay (tpd) of 13 ns
- ±6-mA output drive at 5 V
- Low input current of 1 µA max
- Eight high-current latches in a single package
- Full parallel access for loading data
Applications
The SN74HC373NSRE4 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. It is designed to drive highly capacitive or relatively low-impedance loads, making it versatile for various digital logic applications.
Q & A
- What is the operating voltage range of the SN74HC373NSRE4?
The operating voltage range is from 2 V to 6 V.
- How many latches are included in the SN74HC373NSRE4?
The device includes eight high-current latches in a single package.
- What is the typical propagation delay of the SN74HC373NSRE4?
The typical propagation delay (tpd) is 13 ns.
- What is the maximum output drive at 5 V?
The maximum output drive at 5 V is ±6 mA.
- What is the maximum quiescent current (ICC) of the SN74HC373NSRE4?
The maximum ICC is 80 µA.
- What are the typical applications of the SN74HC373NSRE4?
It is suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
- What is the junction temperature range of the SN74HC373NSRE4?
The junction temperature range is up to 150 °C.
- How many LSTTL loads can the 3-state outputs drive?
The 3-state outputs can drive up to 15 LSTTL loads.
- What is the recommended operating free-air temperature range?
The recommended operating free-air temperature range is from –40 °C to 85 °C.
- What is the input transition rise and fall time at VCC = 6 V?
The input transition rise and fall time at VCC = 6 V is 400 ns.
