S-24C128C Datasheet, PDF (2/35 Pages) Seiko Instruments Inc – Write protect function during the low power supply voltage

2-WIRE SERIAL E²PROM
S-24C128C
 Pin Configurations
1. 8-Pin SOP (JEDEC)
8-Pin SOP (JEDEC)
Top view
1
8
2
7
3
6
4
5
Figure 1
S-24C128CI-J8T1U3
Rev.4.0_02_H
Table 1
Pin No
Symbol
Description
1
A0
Slave address input
2
A1
Slave address input
3
A2
Slave address input
4
GND
Ground
5
SDA^*1
Serial data I/O
6
SCL^*1
Serial clock input
Write protect input
7
WP
Connected to VCC:
Protection valid
Open or connected to GND: Protection invalid
8
VCC
Power supply
*1. Do not use it in high impedance.
2. 8-Pin TSSOP
8-Pin TSSOP
Top view
1
8
2
7
3
6
4
5
Figure 2
S-24C128CI-T8T1U3
Table 2
Pin No
Symbol
Description
1
A0
Slave address input
2
A1
Slave address input
3
A2
Slave address input
4
GND
Ground
5
SDA^*1
Serial data I/O
6
SCL^*1
Serial clock input
Write protect input
7
WP
Connected to VCC:
Protection valid
Open or connected to GND: Protection invalid
8
VCC
Power supply
*1. Do not use it in high impedance.
Remark Refer to the “Package drawings” for the details.
2