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PIC16F18877 Product Overview
PIC16F18877 Product OverviewThe PIC16F18877 is a full-featured 40-pin enhanced mid-range 8-bit microcontroller with 56 KB program Flash, 4 KB SRAM, 256 bytes of EEPROM and up to 36 I/O pins.
Its peripheral set includes a 10-bit ADC with Computation, configurable logic, waveform generators, signal-measurement timers, CRC/memory-scan functions, multiple serial interfaces and XLP power features.
Microchip identifies PIC16F18877 as a newer device in some legacy-device contexts, including PIC16F877A migration consideration. That makes it valuable for comparison content, but engineers must perform a complete pinout, peripheral and firmware review.
Technical source and publishing notes |
PIC16F18877 Key Specifications
Parameter | PIC16F Device Summary |
Architecture | 8-bit enhanced mid-range PIC MCU |
Maximum CPU speed | Up to 32 MHz |
Program Flash | 56 KB |
Data SRAM | 4,096 bytes |
Data EEPROM | 256 bytes |
I/O capability | Up to 36 general-purpose I/O pins |
Analog | 10-bit ADC with Computation, up to 35 external channels, comparators and DAC |
Safety/control peripherals | CRC/memory scan, WWDT, CLC, CWG, NCO and signal-measurement timers |
Serial interfaces | EUSART, two SPI and two I2C resources |
Power features | eXtreme Low-Power (XLP), Doze, Idle and peripheral-disable functions |
Typical package class | 40-pin PDIP and surface-mount options; verify suffix |
Official status | In Production as checked on the Microchip product page |
Specifications can vary by package, device revision and full ordering code. Engineers should validate pinout, electrical limits, programming requirements and errata against the latest Microchip documentation before releasing a design.
Why This Device Attracts Buyer and Engineer Interest
Large memory for an 8-bit platform
56 KB Flash and 4 KB SRAM support feature growth while retaining the PIC16 architecture and toolchain.
High I/O and rich peripherals
Up to 36 I/O and broad analog, timing and communication resources suit multifunction control boards.
Migration and lifecycle content
The device is a useful evaluation target for teams modernizing older 40-pin PIC designs, creating strong comparison and sourcing intent.
Typical Applications
Industrial controllers and interface boards
Supports many digital channels, analog measurements, communications and local control functions.
Appliances and building controls
High I/O and memory suit products with user interfaces, relays, sensors and multiple operating modes.
Signal measurement and waveform control
SMT, CLC, CWG, NCO and ADCC resources handle timing and measurement tasks with less software overhead.
Legacy platform modernization
Can be assessed when older PIC16 designs need more memory, modern peripherals or safety-oriented functions.
Design and Procurement Advantages
• 56 KB Flash and 4 KB SRAM are substantial for an enhanced 8-bit PIC.
• Up to 36 I/O supports high-channel-count control boards.
• CRC, memory scan and WWDT support more robust system architectures.
• Strong comparison value for PIC16F877A-era design modernization.
Package and Ordering-Code Guidance
The base name PIC16F18877 is not a complete purchasing code. Package, temperature grade, qualification level and packing method can change the orderable suffix and commercial availability.
1. Quote the complete manufacturer orderable part number, not only the base device name.
2. Confirm package, temperature grade, packing method and required compliance documentation.
3. For migration projects, verify pin functions, configuration bits, voltage behavior, peripherals and firmware changes.
4. Agree acceptable lot/date-code range and traceability requirements before order confirmation.
Lifecycle and Market Position
Microchip displayed PIC16F18877 as In Production on the review date. It is relevant to both current designs and migration projects, but the exact package, voltage family and temperature suffix must be controlled.
Alternative and Migration Options
Migration note |
• PIC16F18857 for a related 28-pin family member with similar memory scale.
• PIC16F18076 when 28 KB Flash and a simpler cost-sensitive platform are sufficient.
• PIC16F15376 for a mature high-I/O XLP general-purpose design.
• A 32-bit MCU when processing, connectivity or software requirements exceed the PIC16 architecture.
Alternative devices are comparison starting points only. They are not automatically pin-compatible or firmware-compatible. The final choice must be validated against electrical, mechanical, software, safety and regulatory requirements.
Sourcing and Quality Checklist
• Confirm manufacturer, complete ordering code, requested quantity and annual usage.
• Review current product status, PCNs, errata and customer-specific qualification requirements.
• Specify package condition, moisture-sensitivity handling, packing and labeling requirements.
• Request lot/date-code information and traceability documentation appropriate to the transaction.
• Use incoming inspection, programming verification or functional testing proportionate to application risk.
• Avoid approving substitutes solely on price; conduct engineering and quality review first.
Frequently Asked Questions
Is PIC16F18877 a direct replacement for PIC16F877A?
No. It is a newer comparison candidate, but not automatically pin- or firmware-compatible. A full redesign and validation review may be required.
How much memory does PIC16F18877 provide?
It provides 56 KB program Flash, 4 KB SRAM and 256 bytes of data EEPROM.
How many I/O pins are available?
The family supports up to 36 general-purpose I/O pins in the 40-pin device.
Is PIC16F18877 in production?
Yes. Microchip displayed the device as In Production on 14 September 2026.
