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P87C557E8EFB/01

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P87C557E8EFB/01

IC MCU 8BIT 64KB EPROM 80QFP

Manufacturer: Rochester Electronics, LLC

Categories: Microcontrollers

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Rochester Electronics, LLC P87C557E8EFB-01 is an 8-bit microcontroller from the 80C51 family, operating at 16MHz. This component features 64KB of EPROM for program storage and 2KB of RAM. Connectivity options include EBI/EMI, I2C, and UART/USART. It is equipped with an 8-channel 10-bit SAR analog-to-digital converter and peripherals such as Power-on Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT). The oscillator can be configured as external or internal. This microcontroller is housed in an 80-QFP (20x14) surface mount package and operates within a temperature range of -40°C to 85°C. Its 40 I/O pins and robust peripheral set make it suitable for applications in industrial automation and consumer electronics. The supply voltage range is 4.5V to 5.5V.

Additional Information

Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: BulkDatasheet:
Technical Details:
PackagingBulk
Package / Case80-BQFP
Mounting TypeSurface Mount
Speed16MHz
Program Memory Size64KB (64K x 8)
RAM Size2K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeExternal, Internal
Program Memory TypeEPROM
EEPROM Size-
Core Processor80C51
Data ConvertersA/D 8x10b SAR
Core Size8-Bit
Voltage - Supply (Vcc/Vdd)4.5V ~ 5.5V
ConnectivityEBI/EMI, I2C, UART/USART
PeripheralsPOR, PWM, WDT
Supplier Device Package80-QFP (20x14)
Number of I/O40
ProgrammableNot Verified

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Microcontroller FAQs

A microcontroller is a compact integrated circuit that combines a processor, memory, and input/output peripherals for embedded control applications.

Microcontrollers execute programmed instructions to process sensor inputs and control outputs such as motors, displays, and communication interfaces.

Microcontrollers are commonly used in:

  • Automotive systems
  • Robotics
  • IoT devices
  • Industrial automation
  • Household appliances
  • Smart electronics

Microcontrollers integrate memory and peripherals on-chip for dedicated tasks, while microprocessors are designed for higher-performance computing systems requiring external components.

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