DS34LV87TM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Level Translator
• Characteristics:
  • Bi-directional voltage level translation
  • Low voltage operation
  • High-speed data transmission
• Package: Thin Shrink Small Outline Package (TSSOP)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Logic Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Data Rate: 400 Mbps
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The DS34LV87TM has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable)
2. A1 (Logic Level Select)
3. A2 (Logic Level Select)
4. GND (Ground)
5. B1 (Logic Level Select)
6. B2 (Logic Level Select)
7. VCC (Supply Voltage)
8. Y1 (Data Output)
9. Y2 (Data Output)
10. GND (Ground)
11. Y3 (Data Output)
12. Y4 (Data Output)
13. GND (Ground)
14. Y5 (Data Output)
15. Y6 (Data Output)
16. GND (Ground)
17. Y7 (Data Output)
18. Y8 (Data Output)
19. GND (Ground)
20. VCC (Supply Voltage)

Functional Features

• Bi-directional voltage level translation between two voltage domains
• Supports various logic level standards (e.g., TTL, CMOS)
• Automatic direction sensing for bidirectional data flow
• High-speed data transmission up to 400 Mbps
• Low voltage operation for power efficiency

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels - Wide supply voltage range allows compatibility with various systems - High-speed data transmission ensures efficient signal transfer

Disadvantages: - Limited to bi-directional voltage level translation, not suitable for unidirectional applications - Requires careful consideration of logic level compatibility to avoid signal degradation

Working Principles

The DS34LV87TM utilizes a combination of level shifters and direction control circuitry to achieve bi-directional voltage level translation. The device automatically detects the direction of data flow and adjusts the logic levels accordingly. This enables seamless communication between devices operating at different voltage domains.

Detailed Application Field Plans

The DS34LV87TM is commonly used in various applications that require voltage level translation, such as:

1. Communication interfaces between microcontrollers and peripheral devices
2. Interfacing between different logic families (e.g., TTL to CMOS)
3. Signal conversion in mixed-voltage systems
4. Level shifting in battery-powered devices

Detailed and Complete Alternative Models

1. SN74LV1T34: Unidirectional voltage level translator with similar specifications
2. PCA9306: Bidirectional I2C-bus and SMBus voltage level translator
3. TXB0108: Eight-channel bidirectional voltage-level translator with automatic direction sensing

These alternative models offer similar functionality and can be considered based on specific application requirements.

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