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參數(shù)資料
| 型號(hào)： | 93LC66A |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 4K 2.5V Microwire Serial EEPROM(4K位,2.5V,具上掉電數(shù)據(jù)保護(hù)電路,Microwire接口EEPROM) |
| 中文描述： | 4K的Microwire串行EEPROM的為2.5V（4K的位，2.5伏，具上掉電數(shù)據(jù)保護(hù)電路，微型導(dǎo)線接口的EEPROM） |
| 文件頁(yè)數(shù)： | 6/12頁(yè) |
| 文件大小： | 185K |
| 代理商： | 93LC66A |
93LC66A/B
DS21209A-page 6
Preliminary
1997 Microchip Technology Inc.
3.6
ERASE/WRITE Disable and Enable
(EWDS/EWEN)
The 93LC66A/B powers up in the ERASE/WRITE Dis-
able (EWDS) state. All programming modes must be
preceded by an ERASE/WRITE Enable (EWEN)
instruction. Once the EWEN instruction is executed,
programming remains enabled until an EWDS instruc-
tion is executed or Vcc is removed from the device. To
protect against accidental data disturbance, the EWDS
instruction can be used to disable all ERASE/WRITE
functions and should follow all programming opera-
tions. Execution of a READ instruction is independent
of both the EWDS and EWEN instructions.
3.7
READ
The READ instruction outputs the serial data of the
addressed memory location on the DO pin. A dummy
zero bit precedes the 8-bit (93LC66A) or 16-bit
(93LC66B) output string. The output data bits will toggle
on the rising edge of the CLK and are stable after the
specified time delay (T
PD
). Sequential read is possible
when CS is held high. The memory data will automati-
cally cycle to the next register and output sequentially.
FIGURE 3-4:
EWDS TIMING
FIGURE 3-5:
EWEN TIMING
FIGURE 3-6:
READ TIMING
CS
CLK
DI
1
0
0
0
0
X
X
T
CSL
1
X
CS
CLK
DI
0
0
1
1
X
T
CSL
CS
CLK
DI
DO
1
1
0
An
A0
HIGH-Z
0
Dx
D0
Dx
D0
Dx
D0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 93LC66A/P | 功能描述:電可擦除可編程只讀存儲(chǔ)器 512x8 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 |
| 93LC66A-/P | 制造商:Microchip Technology 功能描述:4k(512~8) 2MHz 2.5V to 5.5V VA / Microwire 8DIP Bulk |
| 93LC66A/P | 制造商:Microchip Technology Inc 功能描述:IC EEPROM SERIAL 4K 93LC66 DIP8 |
| 93LC66A/SN | 功能描述:電可擦除可編程只讀存儲(chǔ)器 512x8 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 |
| 93LC66A-/SN | 制造商:Microchip Technology Inc 功能描述: |
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