HN58X2432I Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

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HN58X2432I

Two-wire serial interface 8k EEPROM (1-kword × 8-bit)/16k EEPROM (2-kword × 8-bit) 32k EEPROM (4-kword × 8-bit)/64k EEPROM(8-kword × 8-bit)

Hitachi -> Renesas Electronics 

HN58X2408I/HN58X2416I/HN58X2432I/HN58X2464I

Pin Function

Serial Clock (SCL)

The SCL pin is used to control serial input/output data timing. The SCL input is used to positive edge

clock data into EEPROM device and negative edge clock data out of each device. Maximum clock rate is

400 kHz.

Serial Input/Output Data (SDA)

The SDA pin is bidirectional for serial data transfer. The SDA pin needs to be pulled up by resistor as that

pin is open-drain driven structure. Use proper resistor value for your system by considering VOL, IOL and

the SDA pin capacitance. Except for a start condition and a stop condition which will be discussed later,

the SDA transition needs to be completed during SCL low period.

Data Validity (SDA data change timing waveform)

SCL

SDA

Note:

Data

change

Data

change

High-to-low and low-to-high chang of SDA should be done during SCL low periods.

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