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AT89LP51-20JU

AT89LP51-20JU

AT89LP51-20JU

Microchip Technology

4KB 4K x 8 FLASH 8051 8-Bit Microcontroller 89LP Series AT89LP51 44 Pin 20MHz 5V 44-LCC (J-Lead)

SOT-23

AT89LP51-20JU Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 9 Weeks
Lifecycle Status Production (Last Updated: 2 years ago)
Contact PlatingTin
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 44-LCC (J-Lead)
Surface MountYES
Number of Pins 44
Supplier Device Package 44-PLCC (16.59x16.59)
Number of Terminals 44
Mounting Style SMD/SMT
Interfaces UART
Data Converters --
Number of I/Os 36 I/O
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature - 40 C
Interface Type UART
Manufacturer Microchip
Brand Microchip Technology
RoHS Details
Package Tube
Base Product Number AT89LP51
Mfr Microchip Technology
Product Status Active
Package Shape SQUARE
Number of I/O Lines 36
Operating Temperature-40°C~85°C TA
PackagingTube
Series 89LP
Published 2012
JESD-609 Code e3
Pbfree Code yes
Part StatusActive
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 44
Terminal Finish Matte Tin (Sn) - annealed
Max Operating Temperature85 °C
Min Operating Temperature -40 °C
Additional FeatureOPERATES AT 2.4 V MINIMUM SUPPLY AT 20 MHZ
Terminal Position QUAD
Terminal FormJ BEND
Peak Reflow Temperature (Cel) 245
Supply Voltage 5V
Terminal Pitch1.27mm
Reach Compliance Code compliant
Frequency 20MHz
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number AT89LP51
JESD-30 Code S-PQCC-J44
Qualification StatusNot Qualified
Supply Voltage-Max (Vsup) 5.5V
Power Supplies2.5/5V
Temperature GradeINDUSTRIAL
Supply Voltage-Min (Vsup) 4.5V
Interface EBI/EMI, I2C, SPI, UART, USART
Max Supply Voltage5.5 V
Min Supply Voltage2.4 V
Memory Size4kB
Oscillator TypeInternal
Number of I/O 36
Speed 20MHz
RAM Size 256 x 8
Memory TypeFLASH
Voltage - Supply (Vcc/Vdd) 2.4V~5.5V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER
Core Processor 8051
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory TypeFLASH
Core Size 8-Bit
Program Memory Size 4KB 4K x 8
Connectivity EBI/EMI, I2C, SPI, UART/USART
Supply Current-Max 7 mA
Bit Size 8
Watchdog TimerYes
Has ADC NO
DMA Channels NO
Data Bus Width 8b
PWM Channels NO
DAC Channels NO
Seated Height-Max 4.572 mm
Number of Timers/Counters 3
Address Bus Width16
Product Type8-bit Microcontrollers - MCU
ROM (words) 4096
Core Architecture 8051
EEPROM Size --
CPU Family 8051
Max Frequency 20 MHz
External Data Bus Width 8
Number of Programmable I/O 36
RAM (bytes) 256
ROM Programmability FLASH
Product Category8-bit Microcontrollers - MCU
Device Core80C51
Length 16.586mm
Height Seated (Max) 4.572mm
Width 16.586 mm
RoHS StatusROHS3 Compliant
In-Stock:1732 items

Pricing & Ordering

QuantityUnit PriceExt. Price
1$1.64000$1.64
25$1.50400$37.6
100$1.35960$135.96

AT89LP51-20JU Product Details

AT89LP51-20JU Overview


The package has a 44-LCC (J-Lead) shape. With 36 I/Os, it's pretty good. The Microcontroller's mounting type is Surface Mount and this IC chip has the following features. As the name implies, this Microcontroller is based on the 8-Bit core. As far as its program memory type is concerned, it is FLASH. Temperatures within -40°C~85°C TA range are measured by this Microcontroller. The 89LP series is comprised of this electrical component. The electronic part has a program memory size of 4KB 4K x 8. There's a 8051 Core Processor inside. The IC chip fits into the MICROCONTROLLER uPs/uCs/Peripheral ICs category. There are 44 terminations on the IC chip. 8-bits are the size of the data that comes with MCU. A 5V volt supply is provided by the Microcontroller chip. In addition to that, MCU chip has NO DMA channels. Its memory size is 4kB. It is possible to find alternatives to the base part number AT89LP51 by using the part number search tool. An effective performance can be achieved at a frequency of 20MHz. There are a total of NO channels in the device. It is possible to access the 44 pins on the chip. In total, it has 3 timers and counters in it. There are several CPUs that are embedded in the device, including the the 8051 CPU. The equipment on this page features FLASH memory technology. This device features a 8051 core architecture. As far as the programmability is concerned, it has 36 Programmable I/Os. As an example, there is a feature called OPERATES AT 2.4 V MINIMUM SUPPLY AT 20 MHZ to name only a few.

AT89LP51-20JU Features


44-LCC (J-Lead) package
Mounting type of Surface Mount
Minimum temperature of -40 °C


AT89LP51-20JU Applications


There are a lot of Microchip Technology
AT89LP51-20JU Microcontroller applications.


  • Robots
  • Radio
  • Television
  • Heater/Fan
  • Calculator
  • Kindle
  • Christmas lights
  • 3D printers
  • Washing machine
  • Microwave ovens

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