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參數(shù)資料
| 型號： | M38049MC-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64 |
| 文件頁數(shù)： | 3/138頁 |
| 文件大?。?/td> | 1887K |
| 代理商： | M38049MC-XXXFP |
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Rev.4.01
Nov 14, 2003
page 98 of 136
3803/3804 Group
q Erase command
The erase command is executed by inputting command code 2016
in the first cycle and command code 2016 again in the second
cycle. The command code is latched into the internal command
___
latch at the rising edges of the WE input in the first cycle and in
the second cycle, respectively. The erase operation is initiated at
___
the rising edge of the WE input in the second cycle, and the
memory contents are collectively erased within 9.5 ms as mea-
sured by the internal timer. Note that data 0016 must be written to
all memory locations before executing the erase command.
Note: An erase operation is not completed by executing the erase
command once. Always be sure to execute an erase verify
command after executing the erase command. When the fail-
ure is found in this verification, the user must repeatedly ex-
ecute the erase command until the pass. Refer to Figure 92
for the erase flowchart.
Fig. 91 Input/output timings during erasing (Verify data is output at the same timing as for read.)
q Erase verify command
The user must verify the contents of all addresses after complet-
ing the erase command. The microcomputer enters the erase
verify mode by inputting the verify address and command code
A016 in the first cycle. The address is internally latched at the fall-
___
ing edge of the WE input, and the command code is internally
___
latched at the rising edge of the WE input. When control signals
are input in the second cycle at the timing shown in Figure 91, the
M38039FF/M38049FF outputs the contents of the specified ad-
dress to the external.
Note: If any memory location where the contents have not been
erased is found in the erase verify operation, execute the op-
eration of “erase
→ erase verify” over again. In this case,
however, the user does not need to write data 0016 to memory
locations before erasing.
Address
Erase
Erase verify
Verify
address
tWC
tCS
tRRW
tWP
tWPH
tWP
tDE
tDS
2016
A016
Dout
tDS
tDH
Verify data output
tDH
tVSC
tDS
tWP
tWRR
tCS
tCH
tAS
tAH
VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
VPPH
VPPL
CE
OE
WE
Data
VPP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38034M4-XXXFP | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| M38039MF-XXXFP | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| M38047M6-XXXHP | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| M38049FFSP | 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PDIP64 |
| M38037M8-XXXSP | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PDIP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38049RLSS | 功能描述:DEV EMULATOR CHIP RAM 2KB 64SDIP RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 內(nèi)電路編程器、仿真器以及調(diào)試器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 19/Jul/2010 標(biāo)準(zhǔn)包裝:1 系列:* 類型:* 適用于相關(guān)產(chǎn)品:* 所含物品:* |
| M3806 | 功能描述:電纜固定件和配件 LTSCG 625 BLACK RoHS:否 制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強(qiáng)度: |
| M3806 BK001 | 制造商:Alpha Wire Company 功能描述:CBL 8COND 18AWG BLK 1000' |
| M3806 BK002 | 制造商:Alpha Wire Company 功能描述:CBL 8COND 18AWG BLK 500' |
| M3806 BK005 | 制造商:Alpha Wire Company 功能描述:CBL 8COND 18AWG BLK 100' |
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