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GXA574
1 Basic Performance
• Directly replace xCF8574
• Power supply voltage: 1.6V~5.5V
• Working temperature: -40 ° C~+85 ° C
• Standby current: 0.5 μ A
• Can directly drive LED
• Interrupt pin for open drain output
2 Application
• Servers
• Communication cabinet
• Industrial automation equipment
• Products with limited number of GPIO processors
3 . Description
GXA574 is mainly used to expand general-purpose input/output ports (GPIO). Port data is transmitted through the standard two-wire I2C protocol, which can support a maximum communication rate of 1MHz (up to 2MHz when high-speed mode is enabled).
GXA574 has an 8-bit bidirectional GPIO port that can directly drive LED components. Each GPIO port can be used independently as an input or output port without the need for any directional control signals.

Ordering Information
| Purchase Number | Device | Package | SPQ | Note |
| GXA574U-T&R | GXA574U | TSSOP (20) | 4500 | Tape&Reel |
| GXA574Q-T&R | GXA574Q | QFN (16) | 3000 | Tape&Reel |
| GXA574-T&R | GXA574 | SOW (16) | 1500 | Tape&Reel |
Product Parameters
| Function | I2C GPIO Extension | Communication | I2C |
|---|---|---|---|
| Operating voltage | 1.6V-5.5V | Operating Temperature | -40℃~+85℃ |
| Number of GPIO | 8 | Maximum communication rate | 2MHz |
| Standby current | 0.5μA | Package form | SOW16,QFN16,TSSOP20 |
| Other functions | Can directly drive LED |


