參數資料
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: 37/170頁
文件大?。?/td> 4191K
代理商: 25C256
2003 Microchip Technology Inc.
Preliminary
DS40300C-page 35
PIC16F62X
FIGURE 5-8:
BLOCK DIAGRAM OF
RB0/INT PIN
FIGURE 5-9:
BLOCK DIAGRAM OF
RB1/RX/DT PIN
Data Bus
WR PORTB
WR TRISB
RD PORTB
Data Latch
TRIS Latch
RB0/INT
INT
Q
D
CK
EN
EN
Q
D
RD TRISB
RBPU
P
V
DD
V
DD
V
SS
Q
Q
D
CK
Q
Weak Pull-up
Schmitt
Trigger
TTL
Input
Buffer
Data Latch
TRIS Latch
RD TRISB
Q
D
Q
CK
Q
D
Q
CK
0
1
WR PORTB
WR TRISB
Schmitt
Trigger
Peripheral OE
(2)
Data Bus
PORT/PERIPHERAL Select
(1)
USART Data Output
USART Receive Input
RBPU
V
DD
P
EN
Q
D
V
DD
V
SS
Note
1:
Port/Peripheral select signal selects between port
data and peripheral output.
Peripheral OE (output enable) is only active if
peripheral select is active.
2:
RD PORTB
RX/DT
RB1/
TTL
Input
Buffer
Weak
Pull-up
相關PDF資料
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25C160 8K/16K 5.0V SPI Bus Serial EEPROM
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25C320 32K 5.0V SPI Bus Serial EEPROM
25C320T 32K SPI Bus Serial EEPROM
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