Atmel AT87C52X2CGF-SLSUM
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $33.84 | $33.84 |
| 15+ | $7.78 | $116.70 |
| 25+ | $7.61 | $190.25 |
| 50+ | $7.19 | $359.50 |
| 100+ | $6.35 | $635.00 |
| N+ | $1.27 | Price Inquiry |
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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 AT87C52X2CGF-SLSUM from Atmel is an 8-bit microcontroller based on the 80C51 core. It operates at up to 40 MHz with 8KB of OTP program memory and 256 bytes of RAM. The device requires a 4.5V to 5.5V supply and includes a power-on reset. It is available in a 44-lead LCC package and supports -40°C to 85°C.
- High-Speed 80C51 Core: Runs at 40 MHz, providing fast instruction execution for legacy 8051 applications.
- 5V Operation: Directly interfaces with TTL logic and legacy industrial sensors without level shifting.
- OTP Memory: Cost-effective for high-volume production where firmware is finalized.
- J-Lead Package: Offers robust mechanical mounting for socketed or soldered applications.
Legacy Industrial Controllers
The 80C51 architecture is widely understood, making it easy to port existing 8051 code to this 40 MHz device for PLC or relay logic replacement.
Automotive Aftermarket Modules
The 5V operation and 8KB OTP are suitable for simple timer or alarm modules where code is fixed at production.
Consumer Appliances
With 256 bytes RAM and 8KB ROM, it handles basic user interface logic for microwaves or washing machines with minimal cost.
Test Equipment Interfaces
The J-Lead package allows socketed mounting for firmware updates in benchtop instruments, while the 40 MHz clock supports fast bit-banging protocols.
Security Systems
The POR feature ensures reliable startup in alarm panels, and the 5V supply is compatible with legacy sensor interfaces.
Educational Kits
Its simple architecture and DIP-compatible LCC package make it ideal for teaching 8051 assembly programming.
- Q: What core does this MCU use?
- A: It uses the 80C51 8-bit core.
- Q: What is the clock speed?
- A: It supports 40 MHz or 20 MHz operation.
- Q: How much program memory is available?
- A: It has 8KB of OTP (one-time programmable) ROM.
- Q: What is the supply voltage?
- A: It operates at 4.5V to 5.5V.
- Q: What package is it in?
- A: It comes in a 44-LCC (J-Lead) package.
- Q: What core does this MCU use?
- A: It uses the 80C51 8-bit core.
- Q: What is the clock speed?
- A: It supports 40 MHz or 20 MHz operation.
- Q: How much program memory is available?
- A: It has 8KB of OTP (one-time programmable) ROM.
- Q: What is the supply voltage?
- A: It operates at 4.5V to 5.5V.
- Q: What package is it in?
- A: It comes in a 44-LCC (J-Lead) package.

AT87C52X2CGF-SLSUM.pdf