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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, .
•1 Low Standby-Current Consumption of 1 μA Max
• I2C to Parallel Port Expander
• Open-Drain Active-Low Interrupt Output
• 5-V Tolerant I/O Ports
• Compatible With Most Microcontrollers
• 400-kHz Fast I2C Bus
• Address by Three Hardware Address Pins for Use
of up to Eight Devices
• Polarity Inversion Register
• Latched Outputs With High-Current Drive
Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
2 Applications
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PCA9555 - NXP
The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion for .
PCA9555 - nexperia
The PCA9555 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I²C-bus/SMBus applications. It is desi.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | PCA9550 |
NXP |
2-bit I2C LED driver |
|
| 2 | PCA9551 |
NXP |
8-bit I2C LED driver |
|
| 3 | PCA9552 |
NXP |
16-bit I2C LED driver |
|
| 4 | PCA9553 |
NXP |
4-bit I2C LED driver |
|
| 5 | PCA9554 |
Texas Instruments |
Remote 8-Bit I2C AND SMBus I/O Expander |
|
| 6 | PCA9554 |
NXP |
8-bit I2C and SMBus I/O port |
|
| 7 | PCA9554 |
ON Semiconductor |
8-bit I2C and SMBus I/O Port |
|
| 8 | PCA9554A |
NXP |
8-bit I2C and SMBus I/O port |
|
| 9 | PCA9554A |
Texas Instruments |
Remote 8-Bit I2C and SMBus I/O Expander |
|
| 10 | PCA9555A |
NXP |
Low-voltage 16-bit I2C-bus I/O port |
|
| 11 | PCA9556 |
NXP |
Octal SMBus Registered Interface |
|
| 12 | PCA9557 |
NXP |
8-bit I2C and SMBus I/0 port with reset |
|