The PCA9527 is a 3-channel bidirectional open-drain bus buffer for Display Data Control (DDC) clock, data and Consumer Electronic Control (CEC) for HDMI application. The device has two power supply pins to allow voltage level shift from 2.7 V to 5 V, and a rise time accelerator on port A of each DDC clock and data for driving longer cable (up to 18 meters or.
of the I2C-bus system during the level shift, it also permits extension of the I2C-bus by providing bidirectional buffering for data (SDA), clock (SCL), and CEC. Using the PCA9527 enables the system designer to isolate bus capacitance to meet HDMI DDC version 1.3 distance specification. The SDAx and SCLx pins are overvoltage tolerant and are high-impedance when the PCA9527 is unpowered. The port B drivers (SDAB, SCLB, CECB) with static level offset behave much like the drivers on the PCA9515 device, while the SDAA and SCLA drivers integrate the rise time accelerator, sink more current and elimi.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | PCA9521 |
NXP Semiconductors |
Fast dual bidirectional bus buffer | |
2 | PCA9522 |
NXP Semiconductors |
Fast dual bidirectional bus buffer | |
3 | PCA9525 |
NXP Semiconductors |
Simple 2-wire bus buffer | |
4 | PCA9500 |
NXP |
8-bit I2C and SMBus I/O port | |
5 | PCA9501 |
NXP |
8-bit I2C and SMBus I/O port | |
6 | PCA9502 |
NXP Semiconductors |
8-bit I/O expander | |
7 | PCA9504A |
NXP |
Glue chip 4 | |
8 | PCA9505 |
NXP |
40-bit I2C-bus I/O port | |
9 | PCA9506 |
NXP Semiconductors |
40-bit I2C-bus I/O port | |
10 | PCA9507 |
NXP Semiconductors |
2-wire serial bus extender | |
11 | PCA9508 |
NXP |
Hot swappable level translating I2C-bus repeater | |
12 | PCA9509 |
NXP |
Level translating I2C-bus/SMBus repeater |