S-25C256A Datasheet, PDF (2/31 Pages) Seiko Instruments Inc – Write protect function during the low power supply voltage

SPI SERIAL E²PROM
S-25C256A
 Pin Configurations
1. 8-Pin SOP (JEDEC)
8-Pin SOP (JEDEC)
Top view
1
8
2
7
3
6
4
5
Figure 1
S-25C256A0I-J8T1U4
Rev.2.2_02_S
Table 1
Pin No. Symbol
Description
1
CS ^*1
Chip select input
2
SO
Serial data output
3
WP ^*1
Write protect input
4
GND
Ground
5
SI^*1
Serial data input
6
SCK^*1
Serial clock input
7
HOLD ^*1 Hold input
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-25C256A0I-T8T1U4
Table 2
Pin No. Symbol
Description
1
CS ^*1
Chip select input
2
SO
Serial data output
3
WP ^*1
Write protect input
4
GND
Ground
5
SI^*1
Serial data input
6
SCK^*1
Serial clock input
7
HOLD ^*1 Hold input
8
VCC
Power supply
*1. Do not use it in high impedance.
Remark Refer to the “Package drawings” for the details.
2