PCA9553D/02,112

Product Overview

• Category: Integrated Circuit
• Use: I/O Expander
• Characteristics: 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers
• Package: SO20
• Essence: The PCA9553D/02,112 is a versatile I/O expander that provides easy interfacing between microcontrollers and various peripheral devices.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.3V to 5.5V
• Input/Output Voltage: 0V to VDD
• Maximum Output Current: 25mA per I/O pin
• Operating Temperature Range: -40°C to +85°C
• I2C-bus Frequency: 100kHz, 400kHz, or 1MHz
• Interrupt Output: Active-low open-drain output
• Address Selection: Three hardware address pins for up to eight devices on the same bus

Detailed Pin Configuration

The PCA9553D/02,112 has a total of 20 pins in the SO20 package. The pin configuration is as follows:

1. P0 - I/O Port 0
2. P1 - I/O Port 1
3. P2 - I/O Port 2
4. P3 - I/O Port 3
5. P4 - I/O Port 4
6. P5 - I/O Port 5
7. P6 - I/O Port 6
8. P7 - I/O Port 7
9. INT - Interrupt Output
10. A0 - Hardware Address Selection Bit 0
11. A1 - Hardware Address Selection Bit 1
12. A2 - Hardware Address Selection Bit 2
13. GND - Ground
14. SDA - I2C-bus Serial Data
15. SCL - I2C-bus Serial Clock
16. VDD - Supply Voltage
17. P10 - I/O Port 10
18. P11 - I/O Port 11
19. P12 - I/O Port 12
20. P13 - I/O Port 13

Functional Features

• 16-bit remote bidirectional I/O port
• Internal power-on reset
• Noise filter on SCL/SDA inputs
• Polarity inversion register to configure the polarity of the input pins
• Programmable output configuration register for each I/O pin
• Interrupt capability (INT pin) for input changes
• Low standby current consumption

Advantages and Disadvantages

Advantages: - Versatile I/O expander with multiple applications - Easy interfacing with microcontrollers - Wide operating voltage range - Flexible I2C-bus frequency options - Interrupt capability for efficient input monitoring

Disadvantages: - Limited number of I/O ports (16 in total) - Requires additional components for address selection when using multiple devices on the same bus

Working Principles

The PCA9553D/02,112 operates as an I/O expander by providing additional digital input/output ports to a microcontroller through the I2C-bus interface. It communicates with the microcontroller using standard I2C-bus commands and protocols. The device can be configured to function as either an input or output port individually.

Detailed Application Field Plans

The PCA9553D/02,112 finds applications in various fields, including but not limited to:

1. Industrial automation: Controlling and monitoring peripheral devices such as sensors, actuators, and displays.
2. Home automation: Integrating with smart home systems to control lighting, appliances, and security devices.
3. Automotive electronics: Interface expansion for in-vehicle systems, such as infotainment and driver assistance modules.
4. Consumer electronics: Adding extra I/O ports to microcontroller-based devices like gaming consoles, remote controls, and wearable gadgets.

Detailed and Complete Alternative Models

1. PCA9553PW,118 - 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers in TSSOP20 package.
2. PCA9553BS,118 - 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers in HVQFN20 package.
3. PCA9553DB,112 - 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers in SSOP20 package.

These alternative models offer similar functionality and can be considered as substitutes for the PCA9553D/02,112 depending on specific requirements and package preferences.

In conclusion, the PCA9553D/02,112 is a versatile I/O expander that provides easy interfacing between microcontrollers and peripheral devices. With its 16