PIC16F877A-I/P - 8-Bit 20MHz 14KB Flash MCU | Microchip
MPN: PIC16F877A-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.9394 | $2.94 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
PIC16F877A-I/P Overview
A microcontroller is a programmable integrated circuit that combines a CPU core, nonvolatile program memory, data memory, input/output ports, and peripherals on one package. The PIC16F877A-I/P belongs to the PIC16 family, where Flash program memory allows firmware to be reprogrammed without removing the device. Its DIP-40 package also supports breadboards, prototyping boards, through-hole assembly, and repair workflows where a socketed component is useful.
The verified source data identifies 14 KB of Flash, 368 bytes of RAM, 33 I/O pins, 8-bit processing, and a 20 MHz maximum clock indication. The product family also supports communication and control peripherals described in the manufacturer material, including timer/counter resources, capture/compare/PWM functions, serial interfaces, and an analog-to-digital converter. Exact voltage range, ADC resolution, timer quantities, and electrical timing values are not present in the supplied verified extract and must be checked in the manufacturer datasheet before production release.
PIC16F877A-I/P is commonly selected for cost-sensitive embedded controllers, data-acquisition systems, instrumentation, educational platforms, and legacy industrial equipment. The 40-pin DIP footprint simplifies prototype replacement, while the 33-pin I/O budget supports multiple digital inputs and outputs around a control core. Firmware development should account for the PIC16 instruction set and verify timing at the selected oscillator or external-clock configuration.
The main design consideration is package and lifecycle validation. The part is presented by distributors as purchasable, but current stock, price, and lifecycle status should be checked at procurement. A replacement must be reviewed for pinout, memory, clock, supply voltage, peripheral mapping, programming-tool support, and firmware compatibility rather than selected by MPN similarity alone. The verified LCSC snippet shows an in-stock listing and a price from $2.9394, while exact tiered pricing is not supplied.
This product record combines the verified manufacturer and distributor facts with explicitly marked data gaps. It also separates confirmed same-package alternatives from broader functional replacements, so engineers can make a grounded drop-in decision instead of assuming that a different MCU with similar advertised features is electrically interchangeable.
Drop-in alternatives for PIC16F877A-I/P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16F877A-I/P (same form factor and footprint) — differing in Package, Program Memory Type, ADC, Timers, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F887A-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F877A-I/P
✅ Drop-In✓ In Stock
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View Datasheet →PIC16F877A-I/P Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit CMOS Flash PIC microcontroller |
| Maximum Clock Frequency | 20 MHz |
| Instruction Execution Time | 200 ns |
| Program Memory | 14 KB Flash |
| Data Memory | 368 bytes RAM |
| I/O Pin Count | 33 pins |
| Package | 40-pin plastic DIP (PDIP) |
| Architecture | PIC 8-bit architecture |
| Programmable Instruction Set | 35 single-word instructions |
| Memory Technology | CMOS Flash |
| Mounting Type | Through-hole DIP |
PIC16F877A-I/P 40-pin plastic dip (pdip) Pin Configuration Guide
Pin configuration for PIC16F877A-I/P (40-pin plastic dip (pdip) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC16F877A-I/P.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC16F877A-I/P is suitable for 6 applications: Legacy Industrial Control, Data Acquisition and Instrumentation, Educational Embedded Systems, Motor and Relay Control, Communication Interface Controller, Appliance and Embedded Product Control.
Legacy Industrial Control
PIC16F877A-I/P fits legacy industrial control prototypes that need an 8-bit controller, 20 MHz indicated operation, 14 KB of Flash, and 33 I/O pins in a socketed 40-pin DIP. Its DIP format makes it practical to service boards without redesigning the footprint. The design should be conditioned on the exact supply voltage, temperature, reset, and peripheral requirements in the manufacturer datasheet.
Recommended
Data Acquisition and Instrumentation
PIC16F877A-I/P is a reasonable candidate for compact instrumentation controllers where a microcontroller must coordinate digital inputs, timers, communications, and control outputs. The verified 20 MHz indication and 14 KB Flash provide a useful performance and memory envelope for moderate embedded workloads. Exact ADC resolution, channel count, analog input limits, and acquisition timing must be confirmed before selecting analog front-end circuitry.
Recommended
Educational Embedded Systems
The 40-pin DIP package of PIC16F877A-I/P is well suited to breadboards, solderless training boards, and educational controller kits because it is easy to insert, remove, and replace. Its 8-bit architecture and 35 single-word instruction set make it approachable for learning digital I/O, timing, interrupts, and serial communication. A migration to a smaller MCU may improve board density later, but it changes the learning platform and often the firmware porting workload.
Recommended
Motor and Relay Control
PIC16F877A-I/P can serve as the supervisory controller in relay, motor, or actuator-control boards because 33 I/O pins provide substantial digital headroom and the 20 MHz indication supports event-driven firmware. It is appropriate when the system needs multiple discrete control signals and legacy DIP repairability. Power devices, protection networks, isolation, and timing margins must be designed separately; the MCU output ratings and application limits are [DATA_NEEDED].
Recommended
Communication Interface Controller
PIC16F877A-I/P is applicable to older communication-control boards that need programmable digital interfaces and configurable timing around a simple 8-bit CPU. The verified family description identifies serial-capable resources, while the exact UART, SPI, I2C, and CAN-related details are [DATA_NEEDED] in the supplied extract. Engineers should verify protocol support, pin multiplexing, baud-rate accuracy, and firmware compatibility before replacing a communications controller.
Recommended
Appliance and Embedded Product Control
PIC16F877A-I/P is suitable for cost-sensitive appliance or embedded-product controllers where a through-hole DIP package, Flash re-programmability, and 33 I/O pins simplify prototype assembly and field replacement. Its 14 KB program space and 368 bytes RAM fit moderate supervisory logic, but they may limit complex UI, logging, or multi-protocol designs. Confirm operating temperature and regulatory requirements separately before production use.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F877A-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F877A-I/PT | PIC16F887A-I/P | PIC16F877A-I/SO | PIC16F877A-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP | 44-pin TQFP | 40-pin DIP | 40-pin SOIC | 44-pin TQFP |
Key Differentiators
- Confirmed 40-pin through-hole package (vs PIC16F877A-I/PT)
- Verified 14 KB Flash and 368 bytes RAM (vs PIC16F877A-I/SO)
- 20 MHz indicated performance with 200 ns instruction execution (vs PIC16F887A-I/P)
- Legacy DIP repairability (vs PIC16F877A-I/ML)
Design Notes
Estimated package-fit check: because the verified target is a 40-pin PDIP, preserve the through-hole footprint, pin spacing, drill diameter, and connector clearance from the manufacturer mechanical drawing. Do not substitute a 44-pin TQFP, SOIC, or other surface-mount option without a PCB redesign. Confirm whether the board uses sockets and whether mechanical height and orientation matter.
The verified data does not provide the supply-voltage range or I/O absolute-maximum limits, so do not choose regulator values or input levels from memory. Before power-up, verify VDD tolerances, reset requirements, unused-pin handling, and I/O current limits in the manufacturer datasheet. Keep the MCU rail decoupling close to the device and provide a stable clock or oscillator arrangement matching the selected timing configuration.
The supplied search results mention PIC16F887 as a possible migration path, but family similarity does not prove a pin-to-pin or firmware-compatible replacement. Check the Microchip pin and code compatibility chart, device ID, configuration words, peripheral mapping, interrupt vectors, and programming tool support. A replacement that changes package or peripheral behavior should be treated as a redesign, not a drop-in substitution.
Compliance Information
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Do not infer compliance from distributor listings.
