PI4IOE5V9535LEX

Product Overview

• Category: Integrated Circuit
• Use: I/O Expander
• Characteristics: High-voltage, low-voltage bidirectional translating I2C-bus and SMBus voltage-level translator with an enable (EN) input
• Package: 20-pin TSSOP package
• Essence: Provides bidirectional voltage translation between a low-voltage (LV) and a higher-voltage (HV) bus or two LV buses
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range:
  • LV Side: 1.65V to 3.6V
  • HV Side: 2.7V to 5.5V
• Maximum Operating Frequency: 400 kHz
• Number of I/Os: 16
• I/O Compatibility: 5V tolerant on LV side
• ESD Protection: ±8 kV HBM, ±500 V CDM

Detailed Pin Configuration

The PI4IOE5V9535LEX has a total of 20 pins. The pin configuration is as follows:

1. SDA - Serial Data Line
2. SCL - Serial Clock Line
3. INT - Interrupt Output
4. EN - Enable Input
5. GND - Ground
6. IO0 - Bidirectional I/O 0
7. IO1 - Bidirectional I/O 1
8. IO2 - Bidirectional I/O 2
9. IO3 - Bidirectional I/O 3
10. IO4 - Bidirectional I/O 4
11. IO5 - Bidirectional I/O 5
12. IO6 - Bidirectional I/O 6
13. IO7 - Bidirectional I/O 7
14. IO8 - Bidirectional I/O 8
15. IO9 - Bidirectional I/O 9
16. IO10 - Bidirectional I/O 10
17. IO11 - Bidirectional I/O 11
18. IO12 - Bidirectional I/O 12
19. IO13 - Bidirectional I/O 13
20. VCC - Supply Voltage

Functional Features

• Bidirectional voltage translation between LV and HV buses or two LV buses
• Supports I2C-bus and SMBus protocols
• Enables communication between devices operating at different voltage levels
• Provides level shifting for open-drain and push-pull applications
• Supports hot insertion and removal of devices
• Low standby current consumption

Advantages and Disadvantages

Advantages: - Allows interfacing between devices with different voltage levels - Supports multiple I/Os for versatile applications - Provides ESD protection for robustness - Low power consumption in standby mode

Disadvantages: - Limited to a maximum operating frequency of 400 kHz - Requires careful consideration of voltage compatibility to avoid damage

Working Principles

The PI4IOE5V9535LEX is designed to facilitate bidirectional voltage translation between low-voltage (LV) and higher-voltage (HV) buses or two LV buses. It utilizes an enable (EN) input to control the direction of data flow. When EN is high, the device translates signals from the LV side to the HV side, and when EN is low, it performs the translation in the opposite direction.

The I/Os are compatible with both 3.3V and 5V systems, making it suitable for various applications. The device supports I2C-bus and SMBus protocols, enabling seamless communication between devices operating at different voltage levels.

Detailed Application Field Plans

The PI4IOE5V9535LEX finds applications in various fields, including:

1. Industrial Automation: Enables communication between LV and HV devices in control systems.
2. Consumer Electronics: Facilitates interfacing between different voltage level components in smartphones, tablets, and other portable devices.
3. Automotive: Allows integration of LV and HV systems in vehicles, such as infotainment systems and dashboard controls.
4. Internet of Things (IoT): Supports connectivity between LV and HV devices in IoT applications, enhancing interoperability.

Detailed and Complete Alternative Models

1. PCA9306: Bidirectional I2C-bus and SMBus voltage-level translator with automatic direction sensing.
2. TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing.
3. SN74LVC4245A: Octal dual-supply translating transceiver with configurable voltage-level shifting.

These alternative models offer similar functionality to the PI4IOE5V9535LEX and can be considered based on specific requirements and compatibility with existing systems.

In conclusion, the PI4IOE5V9535LEX is a versatile I/O expander that provides bidirectional voltage translation between LV and HV buses or two LV buses. With its compact package