AT89LP6440-20AU Microchip

Features 8-bit Microcontroller Compatible with MCS 51 Products Enhanced 8051 Architecture Single-clock Cycle per Byte Fetch Up to 20 MIPS Throughput at 20 MHz Clock Frequency Fully Static Operation: 0 Hz to 20 MHz On-chip 2-cycle Hardware Multiplier 16x16 MultiplyAccumulate Unit 256x8 Internal RAM 4096x8 Internal Extra RAM 8-bit Up to 4KB Extended Stack in Extra RAM Dual Data Pointers Microcontroller 4-level Interrupt Priority Nonvolatile Program and Data Memory with 32K/64K 32K/64K Bytes of In-System Programmable (ISP) Flash Program Memory 8K Bytes of Flash Data Memory Bytes In-System Endurance: Minimum 100,000 Write/Erase Cycles Serial Interface for Program Downloading 64-byte Fast Page Programming Mode Programmable 256-Byte User Signature Array 2-level Program Memory Lock for Software Security Flash In-Application Programming of Program Memory Peripheral Features Three 16-bit Enhanced Timer/Counters Two 8-bit PWM Outputs AT89LP3240 4-Channel 16-bit Compare/Capture/PWM Array Enhanced UART with Automatic Address Recognition and Framing AT89LP6440 Error Detection Enhanced Master/Slave SPI with Double-buffered Send/Receive Master/Slave Two-Wire Serial Interface Programmable Watchdog Timer with Software Reset Dual Analog Comparators with Selectable Interrupts and Debouncing 8-channel 10-bit ADC/DAC 8 General-purpose Interrupt Pins Special Microcontroller Features Two-wire On-chip Debug Interface Brown-out Detection and Power-on Reset with Power-off Flag Active-low External Reset Pin Internal RC Oscillator Low Power Idle and Power-down Modes Interrupt Recovery from Power-down Mode I/O and Packages Up to 38 Programmable I/O Lines 40-lead PDIP or 44-lead TQFP/PLCC or 44-pad VQFN/MLF Configurable I/O Modes Quasi-bidirectional (80C51 Style) Input-Only (Tristate) Push-pull CMOS Output Open-drain Operating Conditions 2.4V to 3.6V V Voltage Range DD -40 C to 85C Temperature Range 0 to 20 MHz 2.43.6V 3706CMICRO2/111. Pin Configurations 1.1 40P6: 40-lead PDIP T2/P1.0 1 40 VDD T2EX/P1.1 2 39 P0.0/AD0 SDA/P1.2 3 38 P0.1/AD1 SCL/P1.3 4 37 P0.2/AD2 SS/P1.4 5 36 P0.3/AD3 MOSI/P1.5 6 35 P0.4/AD4 MISO/P1.6 7 34 P0.5/AD5 SCK/P1.7 8 33 P0.6/AD6 RST/P4.2 9 32 P0.7/AD7 RXD/P3.0 10 31 P4.3 TXD/P3.1 11 30 P4.4/ALE INT0/P3.2 12 29 P4.5 INT1/P3.3 13 28 P2.7/AIN3/A15 T0/P3.4 14 27 P2.6/AIN2/A14 T1/P3.5 15 26 P2.5/AIN1/A13 WR/P3.6 16 25 P2.4/AIN0/A12 RD/P3.7 17 24 P2.3/A11/CCD XTAL2/P4.1 18 23 P2.2/A10/CCC XTAL1/P4.0 19 22 P2.1/A9/CCB GND 20 21 P2.0/A8/CCA 1.2 44A: 44-lead TQFP (Top View) MOSI/P1.5 1 33 P0.4/AD4 MISO/P1.6 2 32 P0.5/AD5 SCK/P1.7 3 31 P0.6/AD6 RST/P4.2 4 30 P0.7/AD7 29 P4.3 RXD/P3.0 5 VDD 6 28 GND TXD/P3.1 7 27 P4.4/ALE INT0/P3.2 8 26 P4.5 INT1/P3.3 9 25 P2.7/AIN3/A15 T0/P3.4 10 24 P2.6/AIN2/A14 T1/P3.5 11 23 P2.5/AIN1/A13 2 AT89LP3240/6440 3706CMICRO2/11 WR/P3.6 12 44 P1.4/SS RD/P3.7 13 43 P1.3/SCL XTAL2/P4.1 14 42 P1.2/SDA XTAL1/P4.0 15 41 P1.1/T2EX GND 16 40 P1.0/T2 GND 17 39 VDD CCA/A8/P2.0 18 38 VDD CCB/A9/P2.1 19 37 P0.0/AD0 CCC/A10/P2.2 20 36 P0.1/AD1 CCD/A11/P2.3 21 35 P0.2/AD2 A12/AIN0/P2.4 22 34 P0.3/AD3