s-24c02ci-t8t1u Seiko Instruments Inc., s-24c02ci-t8t1u Datasheet - Page 9

• Manufacturer Part Number: s-24c02ci-t8t1u
• Description: 2-wire Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

Rev.2.0
Pin Functions
1. A0, A1 and A2 (Slave Address Input) Pins
2. SDA (Serial Data Input / Output) Pin
3. SCL (Serial Clock Input) Pin
4. WP (Write Protection Input) Pin
In the S-24C01C/02C, to set the slave address, connect each pin of A0, A1, A2 to GND or V
can set 8 types of slave address by a combination of A0, A1, A2 pins.
Comparing the slave address transmitted from the master device and one that you set, makes possible to select the
S-24C01C/02C from other devices connected onto the bus.
Be sure to connect to fix the address input pin to GND or V
The SDA pin is used for the bi-directional transmission of serial data. This pin is a signal input pin, and an Nch open
drain output pin.
In use, generally, connect the SDA line to any other device which has the open-drain or open-collector output with
Wired-OR connection by pulling up to V
The SCL pin is used for the serial clock input. Since the signals are processed at a rising or falling edge of the SCL
clock, pay attention to the rising and falling time and comply with the specification.
The write protection is enabled by connecting the WP pin to V
pin to GND or set in high impedance.
_00_C
Maximum value of
pull-up resistor
[kΩ]
CC
by a resistor ( Figure 9 shows the relation with an output load.).
20
18
16
14
12
10
Figure 9 Output Load
8
2
0
6
4
Seiko Instruments Inc.
10
Value of load capacity
CC
.
CC
[pF]
. When not using the write protection, connect this
f
SCL
2-WIRE CMOS SERIAL E
= 400 kHz
100
CC
. Therefore the users
S-24C01C/02C
2
PROM
9