参数资料
型号: E28F400BX-B60
厂商: INTEL CORP
元件分类: PROM
英文描述: ACTUATOR, SWITCH, ROUND, MOMENTARY; Approval Bodies:BEAB, VDE, UL, CSA; Diameter, external:29mm; IP rating:65; Operations, mechanical No. of:1000000; Temp, op. max:85(degree C); Temp, op. min:-20(degree C) RoHS Compliant: Yes
中文描述: 256K X 16 FLASH 12V PROM, 60 ns, PDSO56
封装: 20 X 14 MM, TSOP-56
文件页数: 18/50页
文件大小: 449K
代理商: E28F400BX-B60
28F400BX-TB 28F004BX-TB
290451 – 6
Bus
Command
Comments
Operation
Write
Setup
Data e 40H
Program
Address e Byte to be
programmed
Write
Program
Data to be programmed
Address e Byte to be
programmed
Read
Status Register Data
Toggle OE
or CE
to update
Status Register
Standby
Check SR7
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 SR3
1 e VPP Low Detect
Standby
Check SR4
1 e Byte Program Error
SR3 MUST be cleared if set during a program attempt
before further attempts are allowed by the Write State
Machine
SR4 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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