參數(shù)資料
型號(hào): 25AA080AST
廠商: Microchip Technology Inc.
英文描述: 8K SPI Bus Serial EEPROM
中文描述: 8K的SPI總線串行EEPROM
文件頁(yè)數(shù): 22/24頁(yè)
文件大小: 523K
代理商: 25AA080AST
2003 Microchip Technology Inc.
DS21808B-page 7
25XX080A/B
Block Diagram
FIGURE 2-1:
READ SEQUENCE
SI
SO
SCK
CS
HOLD
WP
Status
Register
I/O Control
Memory
Control
Logic
X
Dec
HV Generator
EEPROM
Array
Page Latches
Y Decoder
Sense Amp.
R/W Control
Logic
VCC
VSS
TABLE 2-1:
INSTRUCTION SET
Instruction Name
Instruction Format
Description
READ
0000 0011
Read data from memory array beginning at selected address
WRITE
0000 0010
Write data to memory array beginning at selected address
WRDI
0000 0100
Reset the write enable latch (disable write operations)
WREN
0000 0110
Set the write enable latch (enable write operations)
RDSR
0000 0101
Read Status Register
WRSR
0000 0001
Write Status Register
SO
SI
SCK
CS
0
2
3
4
5
6
7
8
9 10 11
21222324252627282930 31
1
01
0
1
15 14 13 12
210
76543210
instruction
16-bit address
data out
high-impedance
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