參數(shù)資料
型號: 25C256
廠商: Microchip Technology Inc.
英文描述: 256K 5.0V SPI Bus Serial EEPROM(4.5~5.5V,256K位,SPI總線串行EEPROM)
中文描述: 256K 5.0V SPI總線串行EEPROM(4.5?5.5V的,256K位和SPI總線串行EEPROM的)
文件頁數(shù): 32/170頁
文件大?。?/td> 4191K
代理商: 25C256
PIC16F62X
DS40300C-page 30
Preliminary
2003 Microchip Technology Inc.
FIGURE 5-1:
BLOCK DIAGRAM OF
RA0/AN0:RA1/AN1 PINS
FIGURE 5-2:
BLOCK DIAGRAM OF
RA2/VREF PIN
FIGURE 5-3:
BLOCK DIAGRAM OF THE RA3/AN3 PIN
Data
Bus
Q
D
Q
CK
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD
TRISA
RD PORTA
Analog
I/O Pin
Q
D
Q
CK
Input Mode
D
Q
EN
To Comparator
Schmitt Trigger
Input Buffer
V
DD
V
SS
Data
Bus
Q
D
Q
CK
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD
TRISA
RD PORTA
Analog
Input Mode
RA2 Pin
Q
D
Q
CK
D
Q
EN
To Comparator
Schmitt Trigger
Input Buffer
V
ROE
V
REF
V
DD
V
SS
Data
Bus
Q
D
Q
CK
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD
TRISA
RD PORTA
Analog
RA3 Pin
Q
D
Q
CK
D
Q
EN
To Comparator
Schmitt Trigger
Input Buffer
Input Mode
Comparator Output
Comparator Mode = 110
1
0
V
DD
V
SS
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