Overview
The SN74AHC373PWLE, produced by Texas Instruments, is an octal transparent D-type latch with 3-state outputs. This component is part of the 74AHC series and is designed to drive highly capacitive or relatively low-impedance loads. It features eight high-current latches in a single package, making it suitable for various applications such as buffer registers, I/O ports, bidirectional bus drivers, and working registers. The device operates with a wide voltage range of 2 V to 5.5 V and has low power consumption, making it efficient for a variety of electronic systems.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2 | 5 | 5.5 | V |
| Operating Temperature Range | -40 | 85 | °C | |
| High-Level Input Voltage (VIH) | 1.5 (VCC=2V) | 3.15 (VCC=4.5V) | 4.2 (VCC=6V) | V |
| Low-Level Input Voltage (VIL) | 0.5 (VCC=2V) | 1.35 (VCC=4.5V) | 1.8 (VCC=6V) | V |
| Output Drive Current | ±6 | mA | ||
| Propagation Delay Time (tpd) | 13 | 38 | ns | |
| Input Current | 1 | µA | ||
| Power Consumption (ICC) | 80 | µA | ||
| Package Type | 20-TSSOP |
Key Features
- Wide operating voltage range of 2 V to 5.5 V
- High-current 3-state true outputs can drive up to 15 LSTTL loads
- Low power consumption, 80-µA max ICC
- Typical propagation delay time (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
- Output-enable (OE) input for high-impedance state
Applications
The SN74AHC373PWLE is particularly suitable for various applications, including:
- Implementing buffer registers
- I/O ports
- Bidirectional bus drivers
- Working registers
Its ability to drive highly capacitive or low-impedance loads makes it versatile for use in complex digital systems.
Q & A
- What is the operating voltage range of the SN74AHC373PWLE?
The operating voltage range is from 2 V to 5.5 V.
- What is the maximum output drive current of the SN74AHC373PWLE?
The maximum output drive current is ±6 mA at 5 V.
- What is the typical propagation delay time (tpd) of the SN74AHC373PWLE?
The typical propagation delay time is 13 ns.
- How many latches are included in the SN74AHC373PWLE?
The device includes eight high-current latches in a single package.
- What is the package type of the SN74AHC373PWLE?
The package type is 20-TSSOP.
- What is the operating temperature range of the SN74AHC373PWLE?
The operating temperature range is from -40°C to 85°C.
- Can the SN74AHC373PWLE drive highly capacitive loads?
Yes, it is designed to drive highly capacitive or relatively low-impedance loads.
- What is the power consumption of the SN74AHC373PWLE?
The maximum power consumption is 80 µA.
- How does the output-enable (OE) input function?
The OE input places the eight outputs in either a normal logic state or the high-impedance state.
- What are some common applications of the SN74AHC373PWLE?
Common applications include buffer registers, I/O ports, bidirectional bus drivers, and working registers.
