Atmel 89C51AC2
The A/T89C51AC2 is a high performance Flash version of the 80C51 single chip 8-bit microcontrollers. It contains a 32 KB Flash memory block for program and data.FEATURES
● 80C51 Core Architecture● 256 Bytes of On-chip RAM
● 1 KB of On-chip XRAM
● 32 KB of On-chip Flash Memory – Data Retention: 10 Years at 85°C Read/Write Cycle: 10K
● 2 KB of On-chip Flash for Bootloader
● 2 KB of On-chip EEPROM Read/Write Cycle: 100K
● 14-sources 4-level Interrupts
● Three 16-bit Timers/Counters
● Full Duplex UART Compatible 80C51
● Maximum Crystal Frequency 40 MHz, in X2 Mode, 20 MHz (CPU Core, 20 MHz)
● Five Ports: 32 + 2 Digital I/O Lines
● Five-channel 16-bit PCA with: – PWM (8-bit) – High-speed Output – Timer and Edge Capture
● Double Data Pointer
● 21-bit Watchdog Timer (7 Programmable Bits)
● 10-bit Resolution Analog to Digital Converter (ADC) with 8 Multiplexed Inputs
● On-chip Emulation Logic (Enhanced Hook System)
● Power Saving Modes: – Idle Mode – Power-down Mode
● Power Supply: 3V to 5.5V
● Temperature Range: Industrial (-40° to +85°C)
● Packages: VQFP44, PLCC44
DESCRIPTION
The 32 KB Flash memory can be programmed either in parallel mode or in serial mode with the ISP capability or with software.