TC9WMB1AFK/FU,TC9WMB2AFK/FU

2007-10-19

2

Block Diagram

Pin Function

Pin Name

Input/Output

Description

SCL

Input

Serial clock input

Data is latched on the rising edge of SCL and transferred the falling edge of SCL.

SDA

Input/output

Serial input/output

This pin must be pulled up with a resistor because it is configured as an N-ch

open-drain pin for output.

WP

Input

Write protection input

A high on this input disables writing. A low on this input enables writing.

A0, A1, A2

Input

Address input

This pin is used to configure the slave address.

1.8 to 3.6 V (for reading)

2.3 to 3.6 V (for writing)

GND

Power supply

0 V (GND)

Control

circuit

Power supply

(booster circuit)

Memory cell

Data register

Timing

generator

Address

register

Address inputs

Input/Output

circuit

Write protection input

WP

GND Ground

Command

register

Serial input/output

SDA

Serial clock input

SCL

Address

decoder

A0 A1 A2