SN74AC373PWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data storage and transfer
• Characteristics: High-speed, low-power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Octal transparent D-type latch with 3-state outputs
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Logic Family: AC
• Number of Bits: 8
• Latch Type: Transparent D-type
• Output Type: 3-state
• Operating Voltage: 2V to 6V
• Operating Temperature: -40°C to 85°C
• Propagation Delay: 4.5 ns (typical)
• Input Capacitance: 3 pF (typical)
• Output Capacitance: 10 pF (typical)

Pin Configuration

The SN74AC373PWR has a total of 20 pins arranged as follows:

1. GND (Ground)
2. D0 (Data Input 0)
3. D1 (Data Input 1)
4. D2 (Data Input 2)
5. D3 (Data Input 3)
6. D4 (Data Input 4)
7. D5 (Data Input 5)
8. D6 (Data Input 6)
9. D7 (Data Input 7)
10. OE (Output Enable)
11. LE (Latch Enable)
12. Q0 (Output 0)
13. Q1 (Output 1)
14. Q2 (Output 2)
15. Q3 (Output 3)
16. Q4 (Output 4)
17. Q5 (Output 5)
18. Q6 (Output 6)
19. Q7 (Output 7)
20. VCC (Power Supply)

Functional Features

• Octal transparent latch: Allows data to be stored and transferred on the rising edge of the latch enable signal.
• 3-state outputs: Provides high impedance state when the output enable signal is low, allowing multiple devices to share a common bus.
• High-speed operation: Propagation delay of only 4.5 ns ensures efficient data transfer.
• Low power consumption: Operates at a wide voltage range (2V to 6V) while consuming minimal power.

Advantages and Disadvantages

Advantages

• High-speed operation enables fast data transfer.
• Low power consumption makes it suitable for battery-powered devices.
• 3-state outputs allow for efficient bus sharing.
• Wide operating voltage range provides flexibility in various applications.

Disadvantages

• Limited number of bits (8) may not be sufficient for certain applications requiring larger data storage.
• TSSOP package may require careful handling during assembly.

Working Principles

The SN74AC373PWR is an octal transparent latch with 3-state outputs. It stores and transfers data based on the rising edge of the latch enable signal (LE). When LE is high, the input data (D0-D7) is latched and appears at the corresponding outputs (Q0-Q7). The 3-state outputs allow the device to enter a high impedance state when the output enable signal (OE) is low, enabling multiple devices to share a common bus without interference.

Detailed Application Field Plans

The SN74AC373PWR can be used in various applications that require data storage and transfer, such as:

1. Microprocessors and microcontrollers
2. Memory systems
3. Communication systems
4. Data acquisition systems
5. Industrial automation

Alternative Models

Here are some alternative models that provide similar functionality:

1. SN74HC373PWR
2. SN74LS373N
3. CD74ACT373M

These models offer different characteristics and specifications, so it is important to select the one that best suits the specific requirements of the application.

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