PCA9550 datasheet by NXP Semiconductors.
| Part number | PCA9550 |
|---|---|
| Datasheet | PCA9550_PhilipsSemiconductors.pdf |
| File Size | 150.21 KB |
| Manufacturer | NXP Semiconductors |
| Description | 2-bit I2C LED driver |
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The PCA9550 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I2C master's (MCU, MPU, DSP, chip set, etc.) timer. The uniqueness of this device is the internal oscillator with two programmable blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the bus master must send repeated mands to turn the LED on and off.
View all NXP Semiconductors datasheets
| Part Number | Description |
|---|---|
| PCA9551 | 8-bit I2C LED driver |
| PCA9552 | 16-bit I2C LED driver |
| PCA9553 | 4-bit I2C LED driver |
| PCA9554 | 8-bit I2C and SMBus I/O port |
| PCA9554A | 8-bit I2C and SMBus I/O port |
| PCA9555 | 16-bit I2C-bus and SMBus I/O port |
| PCA9555A | Low-voltage 16-bit I2C-bus I/O port |
| PCA9556 | Octal SMBus Registered Interface |
| PCA9557 | 8-bit I2C and SMBus I/0 port with reset |
| PCA9559 | 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM |
