opfrad.blogg.se - How to load program for at89c51rd2

20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution).

60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only).

40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution).

2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default Serial Loader.

ISP (In-System Programming) Using Standard VCC Power Supply.

Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply.

– 9 Interrupt Sources with 4 Priority Levels – Six 8-bit I/O Ports (64 Pins or 68 Pins Versions) The AT89C51ED2 provides 2048 bytes of EEPROM for nonvolatile data storage. Step 2: Select device AT89C51RD2 for the Atmel AT89C51RC2 controller. The AT89C51RD2/ED2 retains all of the features of the Atmel 80C52 with 256 bytes of internal RAM, a 9-source 4-level interrupt controller and three timer/counters. regular boot process), as explained on page 93 of the AT89C51RC2 data sheet and in.

The programming voltage is internally generated from the standard VCC pin. The 64-Kbytes Flash memory can be programmed eitherin parallel mode or in serial mode with the ISP capability or with software. It contains a 64-Kbyte Flash memory block for code and for data. AT89C51RD2/ED2 is high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. The Atmel AT89C51RD2 is an 80C52 Compatible High-Speed Microcontroller up to 6 8-bit I/O Ports 3 16-bit Timer/Counters 256 Bytes Scratch Pad RAM 9 Interrupt Sources with 4 Priority Levels Integrated Power Monitor ISP (In-System Programming) 64K Flash on-chip, 1792 bytes on-chip XRAM, Dual Data Pointer, SPI, 16-bit PCA, PWM.