AT89LP51 & AT89LP52 8-Bit Microcontrollers

Microchip Technology AT89LP51 and AT89LP52 8-Bit Microcontrollers are low-power, high-performance CMOS MCUs with 4K/8K bytes of In-System Programmable Flash program memory and 256 bytes of Flash data memory. These devices also offer 256 bytes of RAM, up to 36 I/O lines, three 16-bit timer/counters, a programmable watchdog timer, a full-duplex serial port, an on-chip crystal oscillator, an internal 1.8432 MHz auxiliary oscillator, and a four-level, six-vector interrupt system.

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Description Datasheet Availability Pricing (HUF) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
Package/Case
Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Bus Width
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
872In Stock
1 587,86 Ft
1 457,65 Ft
1 323,82 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B TQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
360In Stock
1 877,22 Ft
1 718,08 Ft
1 555,31 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B VQFN-44 20 MHz 10 bit 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
480In Stock
1 877,22 Ft
1 718,08 Ft
1 555,31 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B TQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU Sngle-Cycle 8051 32K ISP Flsh,2.4-5.5V
Datasheet
294In Stock
1 464,89 Ft
1 345,52 Ft
1 222,55 Ft
Min.: 1
Mult.: 1
8051 32 kB 256 B LQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL
Datasheet
404In Stock
1 077,87 Ft
1 009,14 Ft
1 005,53 Ft
Min.: 1
Mult.: 1
8051 4 kB 256 B PLCC-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V
Datasheet
436In Stock
1 255,10 Ft
1 150,21 Ft
1 045,31 Ft
Min.: 1
Mult.: 1
8051 24 kB 256 B PLCC-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V
Datasheet
412In Stock
1 392,55 Ft
1 276,80 Ft
1 153,82 Ft
Min.: 1
Mult.: 1
8051 32 kB 256 B PLCC-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
278In Stock
1 851,90 Ft
1 699,99 Ft
1 692,76 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B PLCC-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
Datasheet
2 754In Stock
535,32 Ft
484,68 Ft
444,89 Ft
Min.: 1
Mult.: 1
8051 8 kB 256 B TQFP-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
676In Stock
1 754,25 Ft
1 602,33 Ft
1 454,03 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B LQFP-44 20 MHz 10 bit 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
267In Stock
1 877,22 Ft
1 718,08 Ft
1 555,31 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B LQFP-44 20 MHz 10 bit 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V
Datasheet
468In Stock
1 323,82 Ft
1 215,31 Ft
1 099,57 Ft
Min.: 1
Mult.: 1
8051 32 kB 256 B TQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL
Datasheet
610In Stock
535,32 Ft
484,68 Ft
444,89 Ft
Min.: 1
Mult.: 1
8051 4 kB 256 B TQFP-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
133In Stock
1 833,82 Ft
1 678,29 Ft
1 522,76 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B PDIP-40 20 MHz 10 bit 40 I/O 2.4 V 5.5 V Through Hole 8 bit - 40 C + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
209In Stock
1 660,20 Ft
1 529,99 Ft
1 381,69 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B PDIP-40 20 MHz 10 bit 40 I/O 2.4 V 5.5 V Through Hole 8 bit - 40 C + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
Datasheet
103In Stock
1 074,25 Ft
983,82 Ft
Min.: 1
Mult.: 1
8051 8 kB 256 B PLCC-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
30In Stock
1 754,25 Ft
1 602,33 Ft
1 454,03 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B VQFN-44 20 MHz 10 bit 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V
Datasheet
196In Stock
1 193,61 Ft
1 095,95 Ft
998,29 Ft
Min.: 1
Mult.: 1
8051 24 kB 256 B LQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
999Expected 12/21/2026
1 841,05 Ft
1 681,91 Ft
1 522,76 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B PLCC-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
1 343Expected 2/15/2027
1 754,25 Ft
1 602,33 Ft
1 454,03 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B TQFP-44 20 MHz 10 bit 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
275Expected 1/25/2027
1 587,86 Ft
1 457,65 Ft
1 323,82 Ft
Min.: 1
Mult.: 1
8051 64 kB 256 B LQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V
Datasheet
Non-Stocked Lead-Time 12 Weeks
998,29 Ft
Min.: 320
Mult.: 160
8051 24 kB 256 B TQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL
Datasheet
Non-Stocked Lead-Time 13 Weeks
412,34 Ft
Min.: 720
Mult.: 360
8051 4 kB 256 B VQFN-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Sngle-Cycle 8051 32K ISP Flsh,2.4-5.5V
Datasheet
Non-Stocked Lead-Time 13 Weeks
1 222,55 Ft
Min.: 360
Mult.: 360
8051 32 kB 256 B VQFN-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V
Datasheet
Non-Stocked Lead-Time 13 Weeks
998,29 Ft
Min.: 360
Mult.: 360
8051 24 kB 256 B VQFN-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray