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參數(shù)資料
| 型號(hào)： | CAT28C64BKI-15T |
| 英文描述： | 64K-Bit CMOS PARALLEL E2PROM |
| 中文描述： | 64K的位CMOS并行E2PROM的 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 57K |
| 代理商： | CAT28C64BKI-15T |
CAT28C64B
10
Doc. No. 25006-0A 2/98 P-1
PRSOFTWARE DATA
WRITE DATA:
XX
WRITE LAST BYTE
TO
LAST ADDRESS
TO ANY ADDRESS
WRITE DATA:
AA
ADDRESS:
1555
WRITE DATA:
55
ADDRESS:
0AAA
WRITE DATA:
A0
ADDRESS:
1555
Note:
(1)
Write protection is activated at this point whether or not any more writes are completed. Writing to addresses must occur within t
BLC
Max., after SDP activation.
HARDWARE DATA PROTECTION
The following is a list of hardware data protection fea-
tures that are incorporated into the CAT28C64B.
(1) V
CC
sense provides for write protection when V
CC
falls below 3.5V min.
(2) A power on delay mechanism, t
INIT
(see AC charac-
teristics), provides a 5 to 10 ms delay before a write
sequence, after V
CC
has reached 3.5V min.
(3) Write inhibit is activated by holding any one of OE
low, CE high or WE high.
(4) Noise pulses of less than 20 ns on the WE or CE
inputs will not result in a write cycle.
SOFTWARE DATA PROTECTION
The CAT28C64B features a software controlled data
protection scheme which, once enabled, requires a data
algorithm to be issued to the device before a write can be
performed. The device is shipped from Catalyst with the
software protection NOT ENABLED (the CAT28C64B is
in the standard operating mode).
Figure 9. Write Sequence for Activating Software
Data Protection
Figure 10. Write Sequence for Deactivating
Software Data Protection
28C64B F12
5094 FHD F09
WRITE DATA:
AA
ADDRESS:
1555
WRITE DATA:
55
ADDRESS:
0AAA
WRITE DATA:
80
ADDRESS:
1555
WRITE DATA:
AA
ADDRESS:
1555
WRITE DATA:
55
ADDRESS:
0AAA
WRITE DATA:
20
ADDRESS:
1555
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT28C64BKI-90 | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (8kx8) 64K 5V RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28C64BL12 | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (8kx8) 64K 5V 120ns RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28C64BL-12 | 制造商:ON Semiconductor 功能描述:EEPROM Parallel 64K-bit 8K x 8 5V 28-Pin PDIP 制造商:ON Semiconductor 功能描述:EEPROM 64K 8KX8 120NS PDIP28 |
| CAT28C64BL90 | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (8kx8) 64K 5V 90ns RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28C64BLA-12 | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (8kx8) 64K 5V 120ns RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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