Atmel AT87C52X2DRG-SLSUM

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Product attributes Property Value
Manufacturer Atmel
Product Series 87C
Packaging Bulk |
Core Processor 80C51
Core Size 8-Bit
Speed 40/20MHz
Connectivity UART/USART
Peripherals POR
Number of I/O 32
Program Memory Size 8KB (8K x 8)
Program Memory Type OTP
EEPROM Size -
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 4.5V ~ 5.5V
Data Converters -
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 44-PLCC (16.6x16.6)
Package / Case 44-LCC (J-Lead)

The AT87C52X2 is a high-performance 8-bit microcontroller from Atmel based on the 80C51 core. It operates at 40/20MHz with 8KB program memory and 256 bytes RAM. The 44-LCC package supports compact designs. It includes Power-On Reset for reliable startup. Ideal for industrial and automotive applications requiring 5V operation.

  • High-speed 80C51 core: 40MHz max clock enables fast instruction execution for time-critical tasks.
  • Wide temperature range: -40°C to 85°C ensures operation in harsh environments.
  • Integrated POR: eliminates external reset circuitry, reducing BOM cost.
  • J-Lead package: provides robust solder joints for vibration-prone applications.

Industrial Control Systems

With 8KB flash and 256 bytes RAM, it handles real-time control loops in PLCs and motor controllers at 40MHz.

Automotive Body Electronics

Operates reliably from -40°C to 85°C, suitable for window lift and mirror control modules.

Consumer Appliances

Low-cost 80C51 core with POR simplifies power-on sequencing in washing machines and microwaves.

Medical Monitoring Devices

5V operation and J-Lead package enable compact PCB designs for patient vital sign monitors.

Telecom Infrastructure

Dual-speed 40/20MHz allows power scaling for base station status monitoring units.

Security Systems

8KB code space supports encryption algorithms for access control panels.

Q: What is the operating voltage range?
A: 4.5V to 5.5V.
Q: What package is available?
A: 44-LCC (J-Lead).
Q: What is the maximum clock speed?
A: 40/20MHz.
Q: How much program memory does it have?
A: 8KB (8K x 8).
Q: What is the temperature range?
A: -40°C to 85°C.
Base Product Number : AT87C52X2
256B RAM 44-LCC 5V 8-bit MCU 80C51 8KB Flash Atmel Automotive CISC Industrial
Q: What is the operating voltage range?
A: 4.5V to 5.5V.
Q: What package is available?
A: 44-LCC (J-Lead).
Q: What is the maximum clock speed?
A: 40/20MHz.
Q: How much program memory does it have?
A: 8KB (8K x 8).
Q: What is the temperature range?
A: -40°C to 85°C.