M74HC373TTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Octal D-type transparent latch with 3-state outputs
• Characteristics: High-speed CMOS technology, low power consumption, wide operating voltage range
• Package: TSSOP-20 package
• Essence: The M74HC373TTR is a latch IC that can store and output data in an 8-bit format. It is commonly used in digital systems for temporary storage and data transfer.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay Time: 15ns (typical)
• Output Current: ±6mA

Detailed Pin Configuration

The M74HC373TTR has a total of 20 pins, which are assigned specific functions as follows:

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

Functional Features

• Octal latch with transparent inputs and 3-state outputs
• High-speed operation due to CMOS technology
• Low power consumption, making it suitable for battery-powered devices
• Wide operating voltage range allows compatibility with various systems
• Output enable and latch enable pins provide control over data storage and output

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Low power consumption prolongs battery life in portable devices - Wide operating voltage range increases compatibility - 3-state outputs allow multiple devices to share a common bus

Disadvantages: - Limited output current may restrict use in certain applications - Propagation delay time may affect real-time data processing - TSSOP package may require careful handling during assembly

Working Principles

The M74HC373TTR operates as an octal latch with transparent inputs and 3-state outputs. When the latch enable (LE) input is high, the data inputs (D0-D7) are transferred to the outputs (Q0-Q7). The transparent latch feature allows continuous updating of the outputs based on the inputs.

The output enable (OE) pin controls the state of the outputs. When OE is low, the outputs are active and reflect the stored data. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the system.

Detailed Application Field Plans

The M74HC373TTR finds application in various digital systems where temporary storage and data transfer are required. Some specific fields of application include:

1. Microcontrollers and microprocessors
2. Memory systems
3. Communication systems
4. Industrial automation
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74HC373N: Octal D-type transparent latch with 3-state outputs, available in DIP-20 package.
2. CD74HC373E: High-speed CMOS logic octal transparent latch, available in PDIP-20 package.
3. MC74HC373ADW: Octal D-type latch with 3-state outputs, available in SOIC-20 package.

These alternative models offer similar functionality to the M74HC373TTR and can be considered as substitutes based on specific requirements.

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