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參數(shù)資料
| 型號： | PUMA68FV32006M-90 |
| 元件分類： | PROM |
| 英文描述： | 1M X 32 FLASH 3.3V PROM MODULE, 90 ns, PQMA68 |
| 封裝： | PLASTIC, LCC-68 |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 174K |
| 代理商： | PUMA68FV32006M-90 |
PUMA 68FV32006/A - 90/12/15
Issue 1.3 : December 1999
14
A1 9
A 1 8
A1 7
A1 6
A ddr e s s R a n g e
SA 0
SA 1
SA 2
SA 3
SA 4
SA 5
SA 6
SA 7
SA 8
SA 9
SA 1 0
SA 1 1
SA 1 2
SA 1 3
SA 1 4
SA 1 5
00
0
00
0
1
0
1
11
1
11
1
00 000h - 0 FF FF h
10 000h - 1 FF FF h
20 000h - 2 FF FF h
30 000h - 3 FF FF h
40 000h - 4 FF FF h
50 000h - 5 FF FF h
60 000h - 6 FF FF h
70 000h - 7 FF FF h
80 000h - 8 FF FF h
90 000h 9F FF Fh
A 000 0 h - A FF FF h
B 000 0 h - B FF FF h
C 000 0h- C F FF Fh
D 000 0h- D F FF Fh
E 000 0 h - E FF FF h
F 0 0 0 0 h - F FF FF h
The device features hardware sector protection. This feature will disable both program and erase operations in
any sector. The sector protect feature is enabled using programming equipment at the users site. The device
is shipped with all sectors unprotected.
To activate this mode, the programming equipment must force VID on address pin A9 and control pin OE, and
CS=V
IH. The sector adresses (A19, A18, A17 and A16) should be set to the sector to be protected. Program-
ming of the protection circuitry begins on the falling edge of the WE pulse and is terminated with the rising
edge of the same. Sector addresses must be held constant during the WE pulse.
To verify programming of the protection equipment circuitry, the programming equipment must force VID on
address pin A9 with CE and OE at V
IL and WE at V
IH
. Reading the device at a particular sector address (A16,
A17, A18 and A19) while (A6,A1,A0) = (0,1,0) will produce 01H at data output D0 for a protected sector.
Otherwise the device will read 00H for unprotected sector. In this mode, the lower order addresses, except for
A0, A
1 and A6 , are don't care. Address with A1=VIL are reserved for autoselect codes.
It is also possible to determine if a sector is protected in the system by writing the autoselect command.
Performing a read operation at XX02H , where the higher order addresses (A16, A17, A18 and A19) are sector
addresses,(other addresses are a don't care) will produce 01H data if those sectors are protected. Otherwise
the devidce will read 00H for an unprotected sector.
Sector Address Table
Sector Protection
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PUMA68FV32006X-12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| PUMA68FV32006X-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| PUMA68FV32006X-90 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| PUMA68FV32006XI-12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| PUMA68FV32006XI-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
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