參數(shù)資料
型號: E28F004SC-85
廠商: INTEL CORP
元件分類: PROM
英文描述: BYTE-WIDE SmartVoltage FlashFile MEMORY FAMILY 4, 8, AND 16 MBIT
中文描述: 512K X 8 FLASH 3.3V PROM, 85 ns, PDSO40
封裝: 10 X 20 MM, TSOP-40
文件頁數(shù): 25/50頁
文件大?。?/td> 559K
代理商: E28F004SC-85
28F400BX-T/B, 28F004BX-T/B
290451–6
Bus
Command
Comments
Operation
Write
Setup
Program
Data
e
40H
Address
e
Byte to be
programmed
Write
Program
Data to be programmed
Address
e
Byte to be
programmed
Read
Status Register Data.
Toggle OE
Y
or CE
Y
to update
Status Register
Standby
Check SR.7
1
e
Ready, 0
e
Busy
Repeat for subsequent bytes.
Full status check can be done after each byte or after a
sequence of bytes.
Write FFH after the last byte programming operation to
reset the device to Read Array Mode.
Full Status Check Procedure
290451–7
Bus
Command
Comments
Operation
Standby
Check SR.3
1
e
V
PP
Low Detect
Standby
Check SR.4
1
e
Byte Program Error
SR.3 MUST be cleared, if set during a program attempt,
before further attempts are allowed by the Write State
Machine.
SR.4 is only cleared by the Clear Status Register
Command, in cases where multiple bytes are programmed
before full status is checked.
If error is detected, clear the Status Register before
attempting retry or other error recovery.
Figure 12. Automated Byte Programming Flowchart
25
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