Factory Direct Selling HOT Serial Board Module Port IIC/I2C/TWI/SPI Interface Module For 1602 LCD Display

Factory Direct Selling HOT Serial Board Module Port IIC/I2C/TWI/SPI Interface Module For 1602 LCD Display 

Description:      

The IIC I2C 1602 LCD display use  PCF8574 IC for  control and drive IC , it use  REMOTE 8-BIT I/O EXPANDER FOR I2C BUS,

Feature:            

1. Low Standby-Current Consumption of  10 mA Max

2. I2C to Parallel-Port Expander

3. Open-Drain Interrupt Output

4. Compatible With Most Microcontrollers

5. Latched Outputs With High-Current Drive 

6. Capability for Directly Driving LEDs

7. Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

DESCRIPTION/ORDERING INFORMATION      

This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC
operation.
The PCF8574 provides general-purpose remote I/O expansion for most microcontroller families via the I2C
interface [serial clock (SCL), serial data (SDA)].
The device features an 8-bit quasi-bidirectional I/O port (P0–P7), including latched outputs with high-current drive
capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use
of a data-direction control signal. At power on, the I/Os are high. In this mode, only a current source to VCC is
active. An additional strong pullup to VCC allows fast rising edges into heavily loaded outputs. This device turns
on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high
before being used as inputs.