CAT1161LI28

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Level Translator
• Characteristics: Low voltage, bidirectional level shifter
• Package: 28-pin SOIC (Small Outline Integrated Circuit)
• Essence: Translates logic levels between two different voltage domains
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 1.2V to 5.5V
• Logic Voltage Levels: 1.2V to 5.5V
• Data Rate: Up to 100 Mbps
• Number of Channels: 16
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CAT1161LI28 has a total of 28 pins. The pin configuration is as follows:

1. VCCA - Supply voltage for side A
2. VCCB - Supply voltage for side B
3. GND - Ground
4. OE - Output Enable
5. A1 - Channel A input/output 1
6. A2 - Channel A input/output 2
7. A3 - Channel A input/output 3
8. A4 - Channel A input/output 4
9. A5 - Channel A input/output 5
10. A6 - Channel A input/output 6
11. A7 - Channel A input/output 7
12. A8 - Channel A input/output 8
13. A9 - Channel A input/output 9
14. A10 - Channel A input/output 10
15. A11 - Channel A input/output 11
16. A12 - Channel A input/output 12
17. A13 - Channel A input/output 13
18. A14 - Channel A input/output 14
19. A15 - Channel A input/output 15
20. A16 - Channel A input/output 16
21. B1 - Channel B input/output 1
22. B2 - Channel B input/output 2
23. B3 - Channel B input/output 3
24. B4 - Channel B input/output 4
25. B5 - Channel B input/output 5
26. B6 - Channel B input/output 6
27. B7 - Channel B input/output 7
28. B8 - Channel B input/output 8

Functional Features

• Bidirectional voltage level translation between two different voltage domains
• Supports voltage translation from 1.2V to 5.5V
• Low power consumption
• High-speed data transmission up to 100 Mbps
• Output enable pin for easy control of the translation function

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Bidirectional functionality simplifies interface design - High-speed data transmission enables efficient communication - Low power consumption for energy-efficient operation

Disadvantages: - Limited number of channels (16) - May not support voltage levels outside the specified range

Working Principles

The CAT1161LI28 is a voltage level translator that enables communication between two different voltage domains. It uses a combination of MOSFETs and level-shifting circuitry to convert logic signals from one voltage level to another. The device operates bidirectionally, allowing data transmission in both directions.

When the output enable (OE) pin is high, the translation function is enabled, and the logic levels on the input pins (A1-A16 and B1-B8) are translated to the corresponding voltage levels on the output pins. When the OE pin is low, the translation function is disabled, and the output pins are in a high-impedance state.

Detailed Application Field Plans

The CAT1161LI28 is commonly used in various applications that require voltage level translation between different logic families or voltage domains. Some of the typical application fields include:

1. Microcontroller interfacing with different peripheral devices
2. Communication interfaces (UART, SPI, I2C) between systems operating at different voltages
3. Battery-powered devices requiring efficient level shifting
4. Industrial automation systems with mixed voltage components
5. Consumer electronics for signal conversion between different voltage levels

Alternative Models

Here are some alternative models that provide similar functionality to the CAT1161LI28:

1. SN74LV1T34 - Single-bit dual-supply voltage level translator
2. PCA9306 - Dual bidirectional I2C-bus and SMBus voltage-level translator
3. TXB0108 - 8-bit bidirectional voltage-level translator with automatic direction sensing

These alternative models offer comparable features and can be considered based on specific application requirements.

Word count: 511 words