25AA080B Microchip Technology Inc., 25AA080B Datasheet - Page 7

• Manufacturer Part Number: 25AA080B
• Description: 8k Spi Bus Serial Eeprom
• Manufacturer: Microchip Technology Inc.

Block Diagram
TABLE 2-1:
FIGURE 2-1:
© 2007 Microchip Technology Inc.
Instruction Name
SCK
CS
SO
SI
WRITE
READ
WRDI
WREN
RDSR
WRSR
0
0
1
0
INSTRUCTION SET
READ SEQUENCE
0
2
instruction
3
0
Instruction Format
0
HOLD
0000 0011
0000 0010
0000 0100
0000 0110
0000 0101
0000 0001
4
SCK
WP
SO
CS
SI
5
0
high-impedance
I/O Control
6
1
Register
Status
Logic
1
7
15 14 13 12
8
V
V
9 10 11
CC
SS
Read data from memory array beginning at selected address
Write data to memory array beginning at selected address
Reset the write enable latch (disable write operations)
Set the write enable latch (enable write operations)
Read Status Register
Write Status Register
Memory
Control
Logic
16-bit address
Dec
X
Sense Amp.
R/W Control
Y Decoder
HV Generator
Page Latches
2
21 22 23 24 25 26 27 28 29 30 31
EEPROM
Array
1
0
Description
7
25XX080A/B
6
5
data out
4
3
DS21808D-page 7
2
1
0