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參數(shù)資料
| 型號： | PA28F008SA-85 |
| 廠商： | INTEL CORP |
| 元件分類： | PROM |
| 英文描述： | 8-MBIT (1-MBIT x 8) FlashFileTM MEMORY |
| 中文描述： | 1M X 8 FLASH 12V PROM, 85 ns, PDSO44 |
| 封裝： | 0.525 X 1.110 INCH, PLASTIC, SOP-44 |
| 文件頁數(shù)： | 15/33頁 |
| 文件大小： | 466K |
| 代理商： | PA28F008SA-85 |
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28F008SA
RY/BY
Y
and Byte Write/Block Erase
Polling
RY/BY
Y
is a full CMOS output that provides a hard-
ware method of detecting byte write and block erase
completion. It transitions low time t
WHRL
after a
write or erase command sequence is written to the
28F008SA, and returns to V
OH
when the WSM has
finished executing the internal algorithm.
RY/BY
Y
can be connected to the interrupt input of
the system CPU or controller. It is active at all times,
not tristated if the 28F008SA CE
Y
or OE
Y
inputs
are brought to V
IH
. RY/BY
Y
is also V
OH
when the
device is in Erase Suspend or deep powerdown
modes.
290429–6
Bus
Command
Comments
Operation
Write
Byte Write
Setup
Data
e
40H (10H)
Address
e
Byte to be written
Write
Byte Write
Data to be written
Address
e
Byte to be written
Standby/Read
Check RY/BY
Y
V
OH
e
Ready, V
OL
e
Busy
or
Read Status Register
Check SR.7
1
e
Ready, 0
e
Busy
Toggle OE
Y
or CE
Y
to
update Status Register
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 write operation to reset the
device to Ready Array Mode
FULL STATUS CHECK PROCEDURE
290429–7
Bus
Command
Comments
Operation
Optional
Read
CPU may already have read
Status Register data in WSM
Ready polling above
Standby
Check SR.3
1
e
V
PP
Low Detect
Standby
Check SR.4
1
e
Byte Write Error
SR.3 MUST be cleared, if set during a byte write 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 written before full status is
checked.
If error is detected, clear the Status Register before
attempting retry or other error recovery.
Figure 7. Automated Byte Write Flowchart
15
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PA28F008SC-85 | BYTE-WIDE SmartVoltage FlashFile MEMORY FAMILY 4, 8, AND 16 MBIT |
| PA28F008SA-120 | 8-MBIT (1-MBIT x 8) FlashFileTM MEMORY |
| PA28F008SC-120 | BYTE-WIDE SmartVoltage FlashFile MEMORY FAMILY 4, 8, AND 16 MBIT |
| PA34 | POWER OPERATIONAL AMPLIFIERS |
| PA44 | HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PA28F008SA-L200 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| PA28F008SA-L250 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| PA28F008SC-120 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:BYTE-WIDE SmartVoltage FlashFile⑩ MEMORY FAMILY 4, 8, AND 16 MBIT |
| PA28F008SC-85 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:BYTE-WIDE SmartVoltage FlashFile⑩ MEMORY FAMILY 4, 8, AND 16 MBIT |
| PA28F016S5-120 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:BYTE-WIDE SMART 5 FlashFile MEMORY FAMILY 4, 8, AND 16 MBIT |
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