s-25a080a Seiko Instruments Inc., s-25a080a Datasheet - Page 12

• Manufacturer Part Number: s-25a080a
• Description: 25?c Operation Spi Serial E2prom For Automotive Electric Component
• Manufacturer: Seiko Instruments Inc.

*1. Sequential data reading is possible.
*2. In the S-25A080A, the higher addresses A15 to A10 = Don’t care.
*3. After outputting data in the specified address, data in the following address is output.
12
125°C OPERATION SPI SERIAL E
S-25A080A/160A/320A
WREN
WRDI
RDSR
WRSR
READ
WRITE
Instruction
Instruction Setting
In the S-25A160A, the higher addresses A15 to A11 = Don’t care.
In the S-25A320A, the higher addresses A15 to A12 = Don’t care.
Table 15 is the list of instruction for the S-25A080A/160A/320A. The instruction is able to be input by changing the CS
pin “H” to “L”. Input the instruction in the MSB first. Each instruction code is organized with 1-byte as shown below. If the
S-25A080A/160A/320A receives any invalid instruction code, the device goes in the non-select status.
Write enable
Write disable
Read the status register
Write in the status register
Read memory data
Write memory data
Operation
Instruction code
SCK input clock
2
PROM FOR AUTOMOTIVE ELECTRIC COMPONENT
0000 0110
0000 0100
0000 0101
0000 0001
0000 0011
0000 0010
Seiko Instruments Inc.
1 to 8
Table 15
b7 to b0 output
SCK input clock
b7 to b0 input
A15 to A8
A15 to A8
9 to 16
−
−
*2
*2
Address
*1
SCK input clock
A7 to A0
A7 to A0
17 to 24
−
−
−
−
D7 to D0 output
SCK input clock
D7 to D0 input
Rev.1.0
25 to 32
Data
−
−
−
−
_00
*3