AT89S4051-24SUR representative package visual — not an exact-product photograph
Representative package visual — not an exact-product photographProduct referenceVendor-delivered DigiKey product/package image
Exact MPN18 sourced attributes1 source document

Microchip Technology · exact orderable part

AT89S4051-24SUR

IC MCU 8BIT 4KB FLASH 20SOIC

Core Processor
8051
Speed
24MHz
Program Memory Size
4KB (4K x 8)
RAM Size
256 x 8
Voltage - Supply (Vcc/Vdd)
2.7V ~ 5.5V
Package / Case
20-SOIC (0.295", 7.50mm Width)
Original manufacturerCommercial terms confirmed per lot
ManufacturerMicrochip Technology
Package / case20-SOIC (0.295", 7.50mm Width)
Mounting typeSurface Mount
PackingTape & Reel (TR); Cut Tape (CT); Digi-Reel®

Technical parameters

Technical specifications

AT89S4051-24SUR technical parameters
ParameterValue
Base Product NumberAT89S4051 [1]
ConnectivityUART/USART [1]
Core Processor8051 [1]
Core Size8-Bit [1]
MfrMicrochip Technology [1]
Mounting TypeSurface Mount [1]
Number of I/O15 [1]
Operating Temperature-40°C~85°C(TA) [1]
Oscillator TypeInternal [1]
PeripheralsBrown-out Detect/Reset, POR, PWM [1]
Product StatusActive [1]
Program Memory Size4KB (4K x 8) [1]
Program Memory TypeFLASH [1]
RAM Size256 x 8 [1]
Series89S [1]
Speed24MHz [1]
Voltage - Supply (Vcc/Vdd)2.7V ~ 5.5V [1]
Package / Case20-SOIC (0.295", 7.50mm Width) [1]

Catalog relationships

Keep family and exact MPN intent separate.

This page describes one orderable part. A family page helps select suffixes but never carries assumed stock or a price.

Related exact parts

Other published parts

Browse exact MPNs and compare their specifications. These links do not imply compatibility or interchangeability.