1. Description
The AT89C52 is a low-power, high-performance CMOS 8-bit microcomputer with 8K bytes of Flash programmable and erasable read only memory(PEROM). The device is manufactured using Atmel's high density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C52 is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications.
2.Features
• Compatible with MCS-51 TM Products
AT89C52ê??à1úATMEL1???éú2úμ?μíμ??1??D??üμ?COMS8??μ￥???ú￡??úo?8K×??ú?é·′?′2áD′μ????á3ìDò′?′￠?÷PEROM)oí256×??úμ????ú′?′￠êy?Y′?′￠?÷(RAM)￡??÷?t2éó?ATMEL1??????ü?è￡?·?ò×ê§D?′?′￠??ê?éú2ú￡?ó?±ê×?MCS-51??á??μí3oí80522ú?·òy????èY.???ú?ú??8 ???D??′|àí?÷(CPU)oíFLASH ′?′￠μ￥?a￡?
1|?ü??′óμ?AT89C52μ￥???úêêo?Dí?à???a?′?óμ?????3??ù.
1. ?÷òaD??ü2?êy:
+ ó?MCS-51?μáD2ú?·??èY
+ 8KB ×??ú?é??2áD′FLASHéá′?′?′￠?÷
+1000 ′?D′/2á3y?ü?ú
+è??2ì?2ù×÷:0￡?12￡?24Mo?×è
+èy???ó?@@ìDò′?′￠?÷
+256*8 ×??ú?ú2?RAM
+ 32???é±à3ìI/O?ú??
+ 3??16????êy1?¨ê±?÷
+ 8???D???′
+ ?é±à3ì′?DDUART í¨μà
+μí1¤o????Doíμ?μ??￡ê?
2. 1|?üì??÷??ê?
AT89C52 ìá1?ò???±ê×?1|?ü:8KB×??úFLASHéá′?′?′￠?÷￡?256*8×??ú?ú2?RAM￡?32??I/O?ú??￡?3??16????êy/?¨ê±?÷￡?ò???6?òá?á????D???á11￡?ò???è???1¤′?DDí¨D??ú￡????ú?eμ′?÷oíê±?óμ??·.í?ê±AT89C52 ?éò??μμ?OHZ?2ì????-2ù×÷￡?2￠?§3?á???èí?t?é??μ??úμ??￡ê?.???D·?ê?í￡?1CPU1¤×÷￡?μ??êDíRAM￡??¨ê±/??êy?÷￡?′?DDí¨D??ú?°?D???μí3?ìD?1¤×÷.μ?μ?·?ê?±￡′?RAM ?Dμ??úèY￡?μ??eμ′?÷í￡?11¤×÷2￠???1???ü2??t1¤×÷μ???ò???ó2?t?′??