s-24c04bphal Seiko Instruments Inc., s-24c04bphal Datasheet - Page 8

• Manufacturer Part Number: s-24c04bphal
• Description: 2-wire Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

8
2-WIRE CMOS SERIAL E
S-24C04BPHAL
Pin Functions
1. SDA (Serial Data Input/Output) Pin
2. SCL (Serial Clock Input) Pin
3. WP (Write Protection Input) Pin
The SDA pin is used for bidirectional transfer of serial data. It consists of a signal input pin and an Nch
open-drain transistor output pin. Usually pull up the SDA line to V
open-drain or open-collector output devices connected in a wired-OR configuration.
The SCL pin is used for serial clock input. It is capable of processing signals at the rising and falling
edges of the SCL clock input signal. Make sure the rise time and fall time conform to the specifications.
The WP pin is used for write protection. When there is no need for write protection, connect the pin to
GND; when there is a need for write protection, connect the pin to V
2
PROM
Seiko Instruments Inc.
CC
CC
via a resistor, and use it with other
.
Rev.3.0
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