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AT89LP428-20PU

AT89LP428-20PU

AT89LP428-20PU

Microchip Technology

4KB 4K x 8 FLASH 8051 8-Bit Microcontroller 89LP Series AT89LP428 28 Pin 20MHz 5V 28-DIP (0.300, 7.62mm)

SOT-23

AT89LP428-20PU Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 7 Weeks
Lifecycle Status Production (Last Updated: 2 years ago)
Contact PlatingTin
Mount Through Hole
Mounting Type Through Hole
Package / Case 28-DIP (0.300, 7.62mm)
Surface MountNO
Number of Pins 28
Supplier Device Package 28-PDIP
Number of Terminals 28
Mounting Style Through Hole
Interfaces 2-Wire/SPI
Data Converters --
Number of I/Os 26 I/O
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature - 40 C
Manufacturer Microchip
Brand Microchip Technology
RoHS Details
Package Tube
Base Product Number AT89LP428
Mfr Microchip Technology
Product Status Active
Package Shape RECTANGULAR
Number of I/O Lines 30
Operating Temperature-40°C~85°C TA
PackagingTube
Series 89LP
Published 2009
JESD-609 Code e3
Pbfree Code yes
Part StatusActive
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 28
Terminal Finish Matte Tin (Sn) - annealed
Max Operating Temperature85 °C
Min Operating Temperature -40 °C
Terminal Position DUAL
Terminal FormTHROUGH-HOLE
Supply Voltage 5V
Terminal Pitch2.54mm
Reach Compliance Code compliant
Frequency 20MHz
Base Part Number AT89LP428
JESD-30 Code R-PDIP-T28
Qualification StatusNot Qualified
Supply Voltage-Max (Vsup) 5.5V
Power Supplies2.5/5V
Temperature GradeINDUSTRIAL
Supply Voltage-Min (Vsup) 2.4V
Interface 2-Wire, SPI, UART, USART
Max Supply Voltage5.5 V
Min Supply Voltage2.4 V
Memory Size4kB
Oscillator TypeInternal
Number of I/O 30
Speed 20MHz
RAM Size 768 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 SPI, UART/USART
Supply Current-Max 10 mA
Bit Size 8
Watchdog TimerYes
Has ADC NO
DMA Channels NO
Data Bus Width 8b
PWM Channels YES
DAC Channels NO
Seated Height-Max 4.5724 mm
Number of Timers/Counters 3
Product Type8-bit Microcontrollers - MCU
ROM (words) 4096
Core Architecture 8051
EEPROM Size 512 x 8
CPU Family 8051
Max Frequency 20 MHz
External Data Bus Width 8
Number of Programmable I/O 30
RAM (bytes) 768
ROM Programmability FLASH
Product Category8-bit Microcontrollers - MCU
Device Core8051
Height Seated (Max) 4.5724mm
Width 7.62 mm
Length 35.255 mm
RoHS StatusROHS3 Compliant
In-Stock:7244 items

Pricing & Ordering

QuantityUnit PriceExt. Price
1$0.99000$0.99
25$0.90520$22.63
100$0.82000$82

AT89LP428-20PU Product Details

AT89LP428-20PU Overview


Packaged in a 28-DIP (0.300, 7.62mm) format, this MCU is available in a compact size. There are 30 I/Os on the Microcontroller. It is important to note that the Microcontroller has a Through Hole mounting type. 8-Bit core is the basis for this Microcontroller. This program has a type of memory called FLASH for this MCU's program memory. Temperatures in this range are operated by this Microcontroller. The 89LP series includes this electrical component. There is 4KB 4K x 8 bytes of program memory in MCU, which corresponds to the size of the program. With a 8051 Core processor, MCU is equipped with the latest technology available. This is a MICROCONTROLLER uPs/uCs/Peripheral IC. During the manufacturing process, 28 terminations were applied to the IC chip. 8-bits are used in Microcontroller. The MCU chip's supply output is 5V volts. Currently, MCU chip has NO DMA channels. 4kB memory size belongs to the Chip part. Alternatives can be found by looking at the base part number AT89LP428. In the case of 20MHz frequency operation, it can perform efficiently. There are YES PWM channels on the device. The chip has 28 pins. The clock has 3 timers/counters to keep track of the time. This device is embedded with a 8051 processor family, which is a powerful and efficient CPU. There is a FLASH memory feature on this equipment. With 8051 core architecture, it offers high performance. A total of 30 programmable I/Os are available on this board.

AT89LP428-20PU Features


28-DIP (0.300, 7.62mm) package
Mounting type of Through Hole
Minimum temperature of -40 °C


AT89LP428-20PU Applications


There are a lot of Microchip Technology
AT89LP428-20PU Microcontroller applications.


  • Equipment control
  • Instrument control
  • Toys
  • Robots
  • Radio
  • Television
  • Heater/Fan
  • Calculator
  • Kindle
  • Christmas lights

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