■ 제품필수정보

제조사	Microchip
제조사품명	AT89S51-24AU
간략설명	Microchip AT89S51-24AU, 8bit Microcontroller, Microcontrollers, 20MHz, 8 kB Flash, 44-Pin 44A

■ 제품사양

패밀리명 = Microcontrollers
패키지 = 44A
장착형태 = Surface Mount
핀수 = 44
데이터 버스 = 8bit
프로그램 메모리 크기 = 8 kB
최대 주파수 = 20MHz Program Memory
타입 = Flash The Microchip AT89S51 8-bit microcontroller has 4Kbytes of In-System Programmable Flash memory. It operates at 4V to 5.5V power supply. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional non-volatile memory programmer. By combining a versatile 8-bit CPU with In-System Programmable Flash on a monolithic chip, the Atmel AT89S51 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. It features 4K bytes of Flash, 128 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, two 16-bit timer/counters, a five-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. It is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning. The Power down mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next external interrupt or hardware reset.4K Bytes of In-System Programmable (ISP) Flash Memory Three-level Program Memory Lock Fully static operation Three-level Program Memory Lock 128 x 8-bit Internal RAM 32 Programmable I/O Lines Two 16-bit Timer/Counters Six Interrupt Sources Full Duplex UART Serial Channel Low-power Idle and Power-down Modes Interrupt Recovery from Power-down Mode Watchdog Timer Dual Data Pointer Power-off Flag Fast Programming Time Flexible ISP Programming (Byte and Page Mode)