PCA9555PW Integrated Circuits (ICs) |
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Allicdata Part #: | 296-33520-5-ND |
Manufacturer Part#: |
PCA9555PW |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC I/O EXPANDER I2C 16B 24TSSOPI/O Expander 16 I²C... |
More Detail: | N/A |
DataSheet: | PCA9555PW Datasheet/PDF |
Quantity: | 3300 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
Series: | -- |
Packaging: | Tube |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Number of I/O: | 16 |
Interface: | I²C, SMBus |
Interrupt Output: | Yes |
Features: | POR |
Output Type: | Push-Pull |
Current - Output Source/Sink: | 10mA, 25mA |
Clock Frequency: | 400kHz |
Voltage - Supply: | 2.3 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 24-TSSOP (0.173", 4.40mm Width) |
Supplier Device Package: | 24-TSSOP |
Base Part Number: | PCA9555 |
Description
This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)]. The PCA9555 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
Features
1. Low Standby-Current Consumption of 1 μA Max
2. I2C to Parallel Port Expander
3. Open-Drain Active-Low Interrupt Output
4. 5-V Tolerant I/O Ports
5. Compatible With Most Microcontrollers
6. 400-kHz Fast I2C Bus
7. Address by Three Hardware Address Pins for Use of up to Eight Devices
8. Polarity Inversion Register
9. Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
10. Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
11. ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
Applications
1. Servers
2. Routers (Telecom Switching Equipment)
3. Personal Computers
4. Personal Electronics
5. Industrial Automation Equipment
6. Products with GPIO-Limited Processors
Pin Configuration
Pin Functions
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