參數(shù)資料
型號(hào)： W921E400A
廠(chǎng)商： WINBOND ELECTRONICS CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： 4-Bit Microcontroller(4位微控制器)
中文描述： 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP28
封裝： DIP-28
文件頁(yè)數(shù)： 2/53頁(yè)
文件大?。?/td> 394K
代理商： W921E400A
W921E400A/W921C400
- 2 -
6.12 Operating Mode...............................................................................................................................31
6.12.1 Normal Mode:........................................................................................................................31
6.12.2 Hold Mode:............................................................................................................................31
6.12.3 Stop Mode:............................................................................................................................34
6.13 Initial Condition Register of EPROM Program Method .....................................................................36
6.14 Reset.................................................................................................................................................36
6.14.1 Reset by
RESET
.....................................................................................................................36
6.14.2 Reset by Watch Dog Timer.....................................................................................................36
7. ABSOLUTION MAXIMUM RATINGS .......................................................................................................37
8. ELECTRICAL CHARACTERISTICS.........................................................................................................37
8.1 DC Characteristics.............................................................................................................................37
8.2 AC Characteristics .............................................................................................................................40
9. ADDRESSING MODE ..............................................................................................................................42
9.1 ROM Addressing Mode......................................................................................................................42
9.1.1 Indirect Call Addressing Mode: (1 word/2 cycles) .....................................................................42
9.1.2 Long Call/Jump Addressing Mode: (2 words/2 cycles)..............................................................42
9.2 RAM Addressing Mode......................................................................................................................42
9.2.1 Direct Addressing Mode: (2 words/2 cycles).............................................................................43
9.2.2 Indirect Addressing Mode: (1 word / 1 cycle)............................................................................43
9.2.3 Working Register Addressing Mode: (1 word / 1 cycle).............................................................43
9.3 Look-up Table Addressing Mode (1 word/2 cycles) ...........................................................................43
10. INSTRUCTION CODE MAP...................................................................................................................45
11. INSTRUCTION SET SUMMARY............................................................................................................48
12. PACKAGE DIMENSIONS........................................................................................................................52
28-pin DIP.................................................................................................................................................52
28-pin SOP ...............................................................................................................................................52
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