 | Author | Message | | | jojolucky | | Posted: Thu Feb 02, 2012 1:52 am Post subject: AT89C51RD2 | | | | Joined: 12 Apr 2008 Posts: 299 | The AT89C51RD2 is a high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. It contains a 64-Kbyte Flash memory block for code and for data.
ParametricsAT89C51RD2 absolute maximum ratings: (1)I = industrial: -40℃ to 85℃; (2)Storage Temperature: -65℃ to + 150℃; (3)Voltage on VCC to VSS: -0.5V to + 6.5V; (4)VVoltage on Any Pin to VSS: -0.5V to VCC + 0.5V; (5)Power Dissipation: 1 W.
FeaturesAT89C51RD2 features: (1)80C52 Compatible: 8051 Instruction Compatible, Six 8-bit I/O Ports (64 Pins or 68 Pins Versions), Four 8-bit I/O Ports (44 Pins Version), Three 16-bit Timer/Counters, 256 Bytes Scratch Pad RAM, 9 Interrupt Sources with 4 Priority Levels; (2)Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply; (3)ISP (In-System Programming) Using Standard VCC Power Supply; (4)2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default Serial Loader. | |
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