PI4IOE5V9555ZDEX

Product Overview

• Category: Integrated Circuit
• Use: I/O Expander
• Characteristics: High-speed, low-voltage, bidirectional voltage-level translator
• Package: 24-pin SSOP package
• Essence: Provides voltage-level translation between a low-voltage microcontroller and higher-voltage peripherals
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 1.65V to 5.5V
• I/O Voltage: 1.2V to 5.5V
• Maximum Frequency: 400 MHz
• Number of I/Os: 16
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PI4IOE5V9555ZDEX has a total of 24 pins. The pin configuration is as follows:

1. VCCA - Power supply for the A-side I/Os
2. GND - Ground
3. SDA - Serial data input/output
4. SCL - Serial clock input
5. RESET - Reset input
6. INT - Interrupt output
7. OE - Output enable input
8. A0 - Address bit 0
9. A1 - Address bit 1
10. A2 - Address bit 2
11. A3 - Address bit 3
12. A4 - Address bit 4
13. A5 - Address bit 5
14. A6 - Address bit 6
15. A7 - Address bit 7
16. VCCB - Power supply for the B-side I/Os
17. P0 - Port 0
18. P1 - Port 1
19. P2 - Port 2
20. P3 - Port 3
21. P4 - Port 4
22. P5 - Port 5
23. P6 - Port 6
24. P7 - Port 7

Functional Features

• Bidirectional voltage-level translation between microcontroller and peripherals
• Supports I²C-bus/SMBus applications
• Low standby current consumption
• Schmitt-trigger action on all inputs
• Noise filtering on SDA/SCL inputs
• Programmable I/O pull-up resistors
• Address selection pins for multiple devices on the same bus

Advantages and Disadvantages

Advantages

• High-speed voltage-level translation
• Wide operating voltage range
• Small package size
• Low power consumption
• Easy integration with microcontrollers

Disadvantages

• Limited number of I/Os (16)
• Requires external pull-up resistors for I²C-bus operation

Working Principles

The PI4IOE5V9555ZDEX is designed to provide bidirectional voltage-level translation between a low-voltage microcontroller and higher-voltage peripherals. It utilizes a combination of level shifters and logic gates to ensure proper signal translation while maintaining high-speed operation.

The device operates as an I/O expander, allowing the microcontroller to control and communicate with multiple peripherals using a single I²C-bus or SMBus interface. The address selection pins enable the use of multiple devices on the same bus, expanding the number of available I/Os.

Detailed Application Field Plans

The PI4IOE5V9555ZDEX is widely used in various applications that require voltage-level translation and I/O expansion. Some common application fields include:

1. Consumer Electronics: Used in smartphones, tablets, and gaming consoles to interface with peripherals such as touchscreens, sensors, and displays.
2. Industrial Automation: Enables communication between microcontrollers and industrial sensors, actuators, and control systems.
3. Automotive Electronics: Facilitates connectivity between microcontrollers and automotive peripherals like infotainment systems, dashboard displays, and lighting controls.
4. Internet of Things (IoT): Integrates with IoT devices to enable communication with sensors, actuators, and other connected devices.

Detailed and Complete Alternative Models

1. PCA9306DCTR - Dual bidirectional I²C-bus and SMBus voltage-level translator
2. TXB0108PWR - 8-bit bidirectional voltage-level translator with automatic direction sensing
3. SN74LVC4245APW - Octal dual-supply translating transceiver with configurable voltage translation and 3-state outputs

These alternative models offer similar functionality and can be considered as alternatives to the PI4IOE5V9555ZDEX.

In conclusion, the PI4IOE5V9555ZDEX is a versatile I/O expander that provides bidirectional voltage-level translation between a microcontroller and peripherals. With its high-speed operation, wide operating voltage range, and small package size, it is