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AT89S4051 Datasheet PDF

Part Series:AT89S4051 Series
Category:8 Bit Microcontroller
Description:8051 MCU, 4K ISP FLASH, 20Pin - 8051 MCU, 4K FLASH, 24MHz, PDIP, IND GRN
Document:AT89S4051-24PU Datasheet PDF (47 Pages)

AT89S4051 Datasheet PDF 8 Bit Microcontroller

46 Pages
Microchip
8051 MCU, 4K ISP FLASH, 20Pin - 4K FLASH 24MHz, SOIC, IND TEMP GREEN

AT89S4051-24PU - Microchip Specifications

TYPE
DESCRIPTION
Mounting Style
Through Hole
Frequency
24 MHz
Number of Pins
20 Pin
Supply Voltage (DC)
2.70V (min)
Operating Voltage
2.7V ~ 6V
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AT89S4051-24PU - Microchip Function Overview

The AT89S4051-24PU is a low-voltage, high-performance 8-bit CMOS Microcontroller with 4kB of In-system programmable (ISP) flash program memory. The device is manufactured using high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. By combining a versatile 8-bit CPU with flash on a monolithic chip, the AT89S4051 is a powerful microcontroller which provides a highly-flexible solution. 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 disabling all other chip functions until the next external interrupt or hardware reset.
Compatible with MCS®51 products
0 to 24MHz Fully static operation
Two-level program memory lock
256 x 8-bit Internal RAM
15 Programmable I/O lines
Two 16-bit timers/counters
Six interrupt sources
Programmable serial UART channel
Direct LED drive outputs
On-chip analog comparator with selectable interrupt
8-bit PWM (Pulse-width modulation)
Low power idle and power-down modes
Brownout reset
Enhanced UART serial port with framing error detection and automatic address recognition
Internal power-on reset
Interrupt recovery from power-down mode
Programmable and fuseable x2 clock option
Four-level enhanced interrupt controller
Power-off flag
Flexible programming (byte and page modes)
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