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参数资料
| 型号： | UPD62AMC-XXX-5A4-A |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | 0.300 INCH, PLASTIC, SSOP-20 |
| 文件页数： | 2/62页 |
| 文件大小： | 272K |
| 代理商： | UPD62AMC-XXX-5A4-A |
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10
PD62A
Data Sheet U14474EJ2V0DS00
2.4 Program Memory (ROM): 512 steps
× 10 bits
The ROM consists of 10 bits per step, and is addressed by the program counter.
The program memory stores programs and table data, etc.
The 22 steps from 3EAH to 3FFH cannot be used in the test program area.
Figure 2-3. Program Memory Map
000H
0FFH
100H
1FFH
10 bits
Unmounted areaNote
3EAH
3FFH
Test program areaNote
200H
3E9H
Note The unmounted area and the test program area are so designed that a program or data placed in either
of them by mistake is returned to the 000H address.
2.5 Data Memory (RAM): 32
× 4 Bits
The data memory, which is a static RAM consisting of 32
× 4 bits, is used to retain processed data. The data
memory is sometimes processed in 8-bit units. R0 can be used as the ROM data pointer.
RF is also used as the ASR.
When reset, R0 is cleared to “00H” and R1 to RF retain the previous data (undefined upon power application).
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相关代理商/技术参数 |
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| UPD62MC | 制造商:NEC 制造商全称:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION |
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