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參數(shù)資料
| 型號(hào)： | MQ80C52TXXX-20:D |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQFP44 |
| 封裝： | CERAMIC, QFP-44 |
| 文件頁(yè)數(shù)： | 43/81頁(yè) |
| 文件大?。?/td> | 663K |
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48
ATtiny28L/V
1062F–AVR–07/06
.
Enter Programming Mode
The following algorithm puts the device in parallel programming mode:
1.
Apply 4.5 - 5.5V between VCC and GND.
2.
Set RESET and BS pins to “0” and wait at least 100 ns.
3.
Apply 11.5 - 12.5V to RESET. Any activity on BS within 100 ns after +12V has
been applied to RESET will cause the device to fail entering programming mode.
Table 22. Pin Name Mapping
Signal Name in
Programming Mode
Pin Name
I/O
Function
RDY/BSY
PD1
O
“0”: Device is busy programming, “1”: Device is
ready for new command
OE
PD2
I
Output Enable (active low)
WR
PD3
I
Write Pulse (active low)
BS
PD4
I
Byte Select (“0” selects low byte, “1” selects
high byte)
XA0
PD5
I
XTAL1 Action Bit 0
XA1
PD6
I
XTAL1 Action Bit 1
DATA
PB7 - PB0
I/O
Bi-directional Data Bus (output when OE is low)
Table 23. XA1 and XA0 Coding
XA1
XA0
Action when XTAL1 is Pulsed
00
Load Flash/Signature byte Address (High or low address byte for Flash
determined by BS)
0
1
Load Data (High or low data byte for Flash determined by BS)
1
0
Load Command
1
No Action, Idle
Table 24. Command Byte Coding
Command Byte
Command Executed
1000 0000
Chip Erase
0100 0000
Write Fuse Bits
0010 0000
Write Lock Bits
0001 0000
Write Flash
0000 1000
Read Signature Bytes and Calibration Byte
0000 0100
Read Fuse and Lock Bits
0000 0010
Read Flash
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MQ82370-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ8238020 | 制造商:Intel 功能描述:CONTROLLER: OTHER |
| MQ82380-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ82380-20/R | 制造商:Rochester Electronics LLC 功能描述: |
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