AT89LP52-20JU Microcontrollers - MCU by Microchip Technology

Status: Active
Series: AT89LP52
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Single-cycle microcontroller with 8KB ISP flash, 12-clock compatibility mode, 256 bytes flash data memory, 256 bytes RAM, three timers, UART, WDT, up to 36 I/Os, and an internal RC oscillator.

Key Features:

  • 100% software and timing compatibility with AT89S52, meaning no changes to existing software, including fetching from external ROM or read/write from/to external RAM.
  • Disable compatibility mode to achieve on average 9 times more throughput at the same current consumption and frequency as AT89S52; or lower the clock frequency 9 times and achieve the same speed as AT89S52 but with more than 5 times less current consumption.
  • Save even more power and the cost of the quartz crystal altogether by using the internal 1.8432 MHz RC oscillator, which is Vcc and temperature compensated well enough to ensure proper UART serial communications. Together with the built-in POR and the BOD circuits, which ensure proper reset control, you do not need any external components for AT89LP52 to provide the reset and clock functions.
  • The AT89LP52 UART can function as an almost complete master SPI port or can improve software emulation of TWI.
  • Use In-Application Programming with fast page programming to alter the built-in 8K Flash program memory while executing the application, in effect making it possible to have programmable data tables embedded in the program code. Expert users can create self-modifying code with this feature.

Where to Buy

Prices starting from US$2.50

Distributor Stock
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Microchip Technology
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Newark Electronics
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Transfer Multisort Elektronik
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Future Electronics
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Avnet America
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Specifications

Program Memory Type Flash
Program Memory Size (KB) 8
CPU Speed (MIPS/DMIPS) 20
Data EEPROM (bytes) 256
Capture/Compare/PWM (CCP) 0
Max 8 Bit Digital Timers 0
Number of ADCs 0
ADC Channels 0
Max ADC Resolution (bits) 0
Number of Comparators 0
Temp. Range Min. 0
Temp. Range Max. 0
Operation Voltage Max.(V) 5.5
Operation Voltage Min.(V) 2.4
Pin Count 44
Low Power No
Pins | Packaging 44 | PLCC
Temp Range -40C to +85C
Packing Media Tube (27)

Resources


Application Notes
AN_4345 - Program Examples for 8051 Timers
AN_4346 - Program Examples for 8051 UART
AN_3715 - Migrating from AT89S52 to AT89LP52
AN_4363 - Analyzing the Behavior of an Oscillator and Ensuring Good Start-up
AN_AT89LP - AT89LP ADC Implementation
AN_7764 - Design Guide for 8051 Standard Devices
AN_3713 - Digital Filtering with AT89LP6440
AN_3718 - AT89LP52 Drop-In Replacement of AT89S52
AN_3573 - Migrating from AT89C2051/C4051 to AT89LP2052/LP4052
AN_3593 - AT89LP In-System Programming Specification
AN_3617 - Migrating from Philips P89LPC913 to AT89LP214
AN_4284 - How to Calculate the Capacitor of the Reset Input of an 8051 Microcontroller
AN_0508 - Controlling FPGA Configuration with a Flash-based Microcontroller
AN_0510 - Programming the Family of Flash Memories
AN_0524 - Analog-to-Digital Conversion Utilizing AT89LP MCU without ADC
AN_0597 - A Digital Thermometer Using the AT89LP2052 MCU
AN_0593 - Two-Wire Peripheral Expansion for the AT89LP2052 MCU
AN_8128 - AVR186: Best practices for the PCB layout of Oscillators
AN_3707 - Emulating EEPROM Using AT89LP On-Chip Flash Data Memory
AN_4279 - EMC Improvement Guidelines
AN_1489 - PC-Interfaced Data Aquisition System with the AT89C2051 Microcontroller
AN_0507 - Interfacing AT24CXX Serial EEPROMs with AT89LP MCUs
AN_0521 - Interfacing AT93CXXX Serial EEPROMs with AT89LP MCUs
AN_0628 - Interfacing AT25CXXX Serial EEPROMs with AT89LP MCUs
AN_3658 - AT89LP2052/4052 Primer
AN2468 - Production Programming of Microchip AVR and SAM Microcontrollers
AN_3708 - AT89LP Flash Data Memory API
AN_4183 - External Brown-out Protection for C51 Microcontrollers with Active High Reset Input
AN_4214 - Driving Unipolar Stepper Motors Using 8051
AN_3310 - AT89ISP Programmer Cable



Miscellaneous
Hardware Connections for C51 Microcontrollers - This document provides schematics that outline the hardware connections to C51 microcontrollers from USB, CAN, UART, and UART Auto interfaces.
Calculation tool for setting Timers, UART, parameters in 80C51 Microcontrollers - This Excel file allows a user to determine register values for PCA, UART and Timers in order to obtain a specific signal (period and duty cycle) according to the application`
Tables for setting UART parameters in 80C51 Microcontrollers - This Excel file provides configuration tables to allow a user to determine register values for UART according to the application`s oscillator frequency and internal clock mode (X1 or X2).
Atmel8051MCUs_DirectReplacements.pdf
NXP Flash MCU to Atmel Flash MCU Devices, Non-Direct Replacements - This cross reference table helps you choose Atmel Flash MCUs to replace NXP Flash MCUs (these are non-direct replacements that are not pin-to-pin compatible).
Package Adapters of 80C51 Devices - This Excel spreadsheet list available package adapters for Atmel 80C51 microcontrollers



Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 2.3755
Shipping Weight (kg) 3.703704
Lead Count 44
Package Type PLCC
Package Width or Size 16.6x16.6x4.4mm
Soldering Composition Matte Tin

Alternative Descriptions

Single-Cycle 8051, 8K ISP Flash | Microchip Technology
Mcu, 8Bit, 20Mhz, Plcc-44 Rohs Compliant: Yes |Microchip AT89LP52-20JU | Newark Electronics
MCU, 8BIT, 20MHZ, PLCC-44 | element14
IC: microcontroller 8051 | Transfer Multisort Elektronik
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU | Future Electronics
MCU 8-bit AT89 80C51 CISC 8KB Flash 2.5V/3.3V/5V 44-Pin PLCC | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AT89LP52-20JU?

Additional datasheets, footprints and schematics for AT89LP52-20JU are listed on our Part Details page. You can also find images and similar parts to AT89LP52-20JU on this page.

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What category does AT89LP52-20JU fall under?

The AT89LP52-20JU is listed under Semiconductors - ICs > Microcontrollers - MCU > 8 Bit Microcontrollers - MCU.

Can I view similar or alternative parts?

You can view similar parts to AT89LP52-20JU when available in the 8 Bit Microcontrollers - MCU range under the specifications section at the bottom of the details page.

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Is the AT89LP52-20JU RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for AT89LP52-20JU have stock available?

Authorised distributors including Microchip Technology, Newark Electronics, element14, Farnell and Transfer Multisort Elektronik have stock available or on a lead time for AT89LP52-20JU.

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