参数资料
型号: 25AA640AX-I/ST
厂商: Microchip Technology
文件页数: 7/36页
文件大小: 0K
描述: IC EEPROM 64KBIT 10MHZ 8TSSOP
标准包装: 100
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 64K (8K x 8)
速度: 10MHz
接口: SPI 3 线串行
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 8-TSSOP
包装: 管件
产品目录页面: 1449 (CN2011-ZH PDF)
25AA640A/25LC640A
BLOCK DIAGRAM
STATUS
Register
HV Generator
I/O Control
Logic
Memory
Control
Logic
X
Dec
EEPROM
Array
Page Latches
SI
SO
CS
SCK
HOLD
WP
TABLE 2-1:
Y Decoder
Sense Amp.
R/W Control
V CC
V SS
INSTRUCTION SET
Instruction Name
READ
WRITE
WRDI
WREN
RDSR
WRSR
Instruction Format
0000 0011
0000 0010
0000 0100
0000 0110
0000 0101
0000 0001
Description
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
FIGURE 2-1:
CS
READ SEQUENCE
0
1
2
3
4
5
6
7
8
9 10 1 1
2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1
SCK
Instruction
16-bit Address
SI
0
0
0
0
0
0
1
1 15 14 13 12
2
1
0
High-Impedance
Data Out
SO
7
6
5
4
3
2
1
0
? 2003-2012 Microchip Technology Inc.
DS21830E-page 7
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