Overview
The 74AC16373DL is a 16-bit transparent D-type latch with 3-state outputs, manufactured by Texas Instruments. This component is designed to drive high-capacitance or relatively low-impedance loads, making it ideal for applications such as buffer registers, I/O ports, bidirectional bus drivers, and working registers. It can be configured as two 8-bit latches or a single 16-bit latch. The device features a latch enable (LE) input that allows the Q outputs to follow the data (D) inputs when high, and latches the data when low. The buffered output enable (OE) input places the outputs in a high-impedance state, enabling bus driving without the need for interface or pull-up components. The 74AC16373DL is available in a 48-pin SSOP (Shrink Small Outline Package) and operates within a temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | D-Type Latch | - | Transparent |
| Number of Bits | 16 | - | Can be used as two 8-bit latches |
| Output Type | 3-State | - | High-impedance state available |
| Supply Voltage | 2V to 6V | V | Wide operating range |
| Operating Temperature | -40°C to 85°C | °C | Industrial range |
| Package | SSOP-48 | - | Shrink Small Outline Package |
| Latch Enable (LE) | Active High | - | Controls data latching |
| Output Enable (OE) | Active Low | - | Controls output state |
| Propagation Delay | 5.5 ns (max) | ns | At 5V supply |
| Input Capacitance | 4.5 pF | pF | Typical value |
Key Features
- 16-bit transparent D-type latch with 3-state outputs.
- Can be configured as two 8-bit latches or one 16-bit latch.
- High-impedance state for bus driving without interface components.
- Wide operating voltage range (2V to 6V).
- Industrial temperature range (-40°C to 85°C).
- Compact SSOP-48 package for space-efficient designs.
Applications
The 74AC16373DL is widely used in various applications, including:
- Industrial Automation: Suitable for buffer registers and I/O ports in control systems.
- Consumer Electronics: Ideal for bidirectional bus drivers in devices such as printers and scanners.
- Automotive Electronics: Used in working registers for vehicle control modules.
- Communication Systems: Effective in high-speed data transfer applications.
Q & A
1. What is the function of the latch enable (LE) input?
The latch enable (LE) input controls whether the Q outputs follow the data (D) inputs (when high) or latch the data (when low).
2. Can the 74AC16373DL be used as two separate 8-bit latches?
Yes, the device can be configured as two 8-bit latches or a single 16-bit latch.
3. What is the purpose of the output enable (OE) input?
The output enable (OE) input places the outputs in a high-impedance state, allowing bus driving without additional components.
4. What is the operating voltage range of the 74AC16373DL?
The device operates within a voltage range of 2V to 6V.
5. What is the temperature range for the 74AC16373DL?
It operates within an industrial temperature range of -40°C to 85°C.
6. What package is the 74AC16373DL available in?
It is available in a 48-pin SSOP (Shrink Small Outline Package).
7. What is the maximum propagation delay of the 74AC16373DL?
The maximum propagation delay is 5.5 ns at a 5V supply.
8. Is the 74AC16373DL suitable for high-speed applications?
Yes, its low propagation delay and 3-state outputs make it suitable for high-speed data transfer.
9. Can the 74AC16373DL drive high-capacitance loads?
Yes, it is designed to drive high-capacitance or relatively low-impedance loads.
10. What are the typical applications of the 74AC16373DL?
Typical applications include buffer registers, I/O ports, bidirectional bus drivers, and working registers.
