atmel??????????????????Atmel????????????
??????ATMEL?????51??????????????????????????????÷???51????????????????滹??????????Atmel???????????壬????????????????
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| Devices | Flash (Kbytes) | IAP | ISP | EEPROM (Kbytes) | RAM (Bytes) | Fmax (MHz) | Vcc (V) | 16-bit Timers | WDT | SPI |
|---|---|---|---|---|---|---|---|---|---|---|
| AT89C51 | 4 | -- | -- | -- | 128 | 24 | 5??20% | 2 | -- | -- |
| AT89C52 | 8 | -- | -- | -- | 256 | 24 | 5??20% | 3 | -- | -- |
| AT89C2051 | 2 | -- | -- | -- | 128 | 24 | 2.7-6.0 | 2 | -- | -- |
| AT89C4051 | 4 | -- | -- | -- | 128 | 24 | 2.7-6.0 | 2 | -- | -- |
| AT89S51 | 4 | -- | YES | -- | 128 | 33 | 4.0-5.5 | 2 | Yes | -- |
| AT89S52 | 8 | -- | YES | -- | 256 | 33 | 4.0-5.5 | 3 | Yes | -- |
| AT89S2051 | 2 | -- | YES | -- | 256 | 24 | 2.7-5.5 | 2 | -- | -- |
| AT89S4051 | 4 | -- | YES | -- | 256 | 24 | 2.7-5.5 | 2 | -- | -- |
| AT89S8253 | 12 | -- | YES | 2 | 256 | 24 | 2.7-5.5 | 3 | Yes | Yes |
| AT89C51ED2 | 64 | UART | API | 2 | 2048 | 60 | 2.7-5.5 | 3 | Yes | Yes |
| AT89C51RD2 | 64 | UART | API | -- | 2048 | 60 | 2.7-5.5 | 3 | Yes | Yes |
????Atmel????????????
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??????AT89S52-24PU???????????????????????????????壺
AT?????????????????????????ATMEL?????????
89????ATMEL???????89??м??壨???Flash?洢??????
S???????????????? ????C?????CMOS?????LS???????2.7V-4V??LV???????2.7V-6V??LP??????????????????䶮
52????????洢??????????8K??????53??12K??54??16K??55??20K??51??4K??2051??2K???
24???????о?????????????24MHZ??????33MHZ??20MHZ??16MHZ???
P???????DIP????????? S???SOIC????? Q???PQFP?????A???TQFP?????J???PLCC?????W?????о????
U???????о????????????????????????Χ?-40??+85?檔????C???????????????Χ?0??+70?棻I???????????????Χ?-40??+85?棻A????????ò????????Χ?-40??+125?棻M??????ò????????Χ?-55??+150?檔
о??????????о??????????????????Щ??????????????о??????????????????????????????о???????????????IC??????????о?DATASHEET???????????
????admin ?????????2018-01-18
