S-25A640A Datasheet, PDF (4/32 Pages) Seiko Instruments Inc – Function to prevent malfunction by monitoring clock pulse

FOR AUTOMOTIVE 125°C OPERATION SPI SERIAL E²PROM
S-25A640A, S-25A640B
Rev.3.2_01
 Pin Configurations
1. 8-Pin SOP (JEDEC)
Top view
1
8
2
7
3
6
4
5
Figure 2
Pin No.
1
2
3
4
5
6
7
8
Symbol
CS ^*1
SO
WP ^*1
GND
SI^*1
SCK^*1
HOLD ^*1
VCC
Table 3
Description
Chip select input
Serial data output
Write protect input
Ground
Serial data input
Serial clock input
Hold input
Power supply
2. 8-Pin TSSOP
Top view
1
8
2
7
3
6
4
5
Figure 3
Pin No.
1
2
3
4
5
6
7
8
Symbol
CS ^*1
SO
WP ^*1
GND
SI^*1
SCK^*1
HOLD ^*1
VCC
Table 4
Description
Chip select input
Serial data output
Write protect input
Ground
Serial data input
Serial clock input
Hold input
Power supply
3. TMSOP-8
Top view
1
8
2
7
3
6
4
5
Figure 4
*1. Do not use it in "High-Z".
Pin No.
1
2
3
4
5
6
7
8
Symbol
CS ^*1
SO
WP ^*1
GND
SI^*1
SCK^*1
HOLD ^*1
VCC
Table 5
Description
Chip select input
Serial data output
Write protect input
Ground
Serial data input
Serial clock input
Hold input
Power supply
4