PIC18F2610-I/SP - 8-bit MCU, 64KB Flash, 25 I/O, 28-SPDIP | Microchip
MPN: PIC18F2610-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.85 | $7.85 |
| 10 | $7.1 | $71.00 |
| 100 | $6.2 | $620.00 |
| 500 | $5.55 | $2,775.00 |
| 1,000 | $4.95 | $4,950.00 |
PIC18F2610-I/SP Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals on one die. The PIC18 family is Microchip's high-end 8-bit line, with a Harvard architecture that separates program and data buses for predictable instruction throughput. The PIC18F2610 sits in the 'F' (Flash) sub-family of PIC18 devices, which means programs can be erased and rewritten in-circuit via ICSP, making it suitable for prototypes and field-upgradable products.
Key features of the PIC18F2610 include an internal oscillator block selectable from 31 kHz to 8 MHz, a hardware 8x8 single-cycle multiplier, a Fail-Safe Clock Monitor that can shut the system down safely if the primary clock is lost, and a separate Watchdog Timer with its own RC oscillator. The part is rated for 4.2 V to 5.5 V supply and an industrial temperature range of -40 C to +85 C. Together these peripherals target robust, long-life embedded designs where field reliability matters more than raw compute.
Typical applications for the PIC18F2610-I/SP include industrial sensor conditioning, low-speed motor control loops, LCD or LED display drivers, and USB-free human-interface panels. The 25 I/O and 10 PWM channels cover most cost-sensitive motor-driver boards, while the Fail-Safe Clock Monitor and Watchdog Timer suit unattended remote monitoring nodes where a clock failure must not lock up the system.
When laying out a board around the PIC18F2610-I/SP, ensure that the ICSP/PGD/PGC pins remain accessible for in-circuit programming and that the supply rail includes a 100 nF decoupling capacitor within 5 mm of VDD. For designs needing more code space, the related PIC18F2620/2620-I/SP doubles Flash to 64 KB and adds CAN, while keeping the same 28-SPDIP pinout, providing a pin-compatible upgrade path without PCB rework.
Drop-in alternatives for PIC18F2610-I/SP — 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 PIC18F2610-I/SP (same form factor and footprint) — differing in Package, ADC, Mounting Type, Program Memory (Flash), Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F2510-I/SO
✅ Drop-In✓ In Stock
$2.9 / Unit
View Datasheet →PIC18F2510-I/SP
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →PIC18F2520-I/SP
✅ Drop-In✓ In Stock
$3.33 / Unit
View Datasheet →PIC18F2580-I/SP
✅ Drop-In✓ In Stock
$4.55 / Unit
View Datasheet →PIC18F2620-I/SP
✅ Drop-In✓ In Stock
$4.75 / Unit
View Datasheet →PIC18F25K80-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F2610-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit Harvard RISC) |
| CPU Performance | Up to 10 MIPS |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 3968 bytes |
| I/O Pins | 25 |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| Max Clock Frequency | 40 MHz (internal) / up to 40 MHz external |
| Internal Oscillator | 31 kHz to 8 MHz selectable |
| Operating Temperature | -40 C to +85 C (industrial) |
| Package | 28-SPDIP (SP) - through-hole |
| Mounting Type | Through-Hole DIP |
| MSL Level | 1 (not moisture sensitive - through-hole) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Hardware Multiplier | 8 x 8 single-cycle |
| Fail-Safe Clock Monitor | Yes |
| Watchdog Timer | Yes, with separate RC oscillator |
PIC18F2610-I/SP Pin Configuration
| Pin 1 | MCLR/VPP/RE3 — Master Clear (reset) input / programming voltage / digital I/O RE3 |
| Pin 2 | RA0/AN0 — Digital I/O RA0 / analog input AN0 |
| Pin 3 | RA1/AN1 — Digital I/O RA1 / analog input AN1 |
| Pin 4 | RA2/AN2/VREF- — Digital I/O RA2 / analog input AN2 / ADC negative reference |
| Pin 5 | RA3/AN3/VREF+ — Digital I/O RA3 / analog input AN3 / ADC positive reference |
| Pin 6 | RA4/T0CKI — Digital I/O RA4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — Digital I/O RA5 / analog input AN4 / SPI slave select |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock input / digital I/O RA7 |
| Pin 10 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / digital I/O RA6 |
| Pin 11 | RC0/T1OSO/T1CKI — Digital I/O RC0 / Timer1 oscillator output / Timer1 clock input |
| Pin 12 | RC1/T1OSI/CCP2 — Digital I/O RC1 / Timer1 oscillator input / CCP2 PWM output |
| Pin 13 | RC2/CCP1 — Digital I/O RC2 / CCP1 PWM output |
| Pin 14 | RC3/SCK/SCL — Digital I/O RC3 / SPI clock / I2C clock |
| Pin 15 | RC4/SDI/SDA — Digital I/O RC4 / SPI data in / I2C data |
| Pin 16 | RC5/SDO — Digital I/O RC5 / SPI data out |
| Pin 17 | RC6/TX/CK — Digital I/O RC6 / USART TX / USART clock |
| Pin 18 | RC7/RX/DT — Digital I/O RC7 / USART RX / USART data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RB0/INT0 — Digital I/O RB0 / external interrupt 0 |
| Pin 22 | RB1/INT1 — Digital I/O RB1 / external interrupt 1 |
| Pin 23 | RB2/INT2 — Digital I/O RB2 / external interrupt 2 |
| Pin 24 | RB3/CCP2 — Digital I/O RB3 / CCP2 PWM output |
| Pin 25 | RB4 — Digital I/O RB4 |
| Pin 26 | RB5 — Digital I/O RB5 |
| Pin 27 | RB6/PGC — Digital I/O RB6 / ICSP clock |
| Pin 28 | RB7/PGD — Digital I/O RB7 / ICSP data |
Typical Applications
PIC18F2610-I/SP is suitable for 6 applications: Industrial Sensor Conditioning and Control, Low-Speed DC Motor and Stepper Control, Human-Machine Interface (HMI) Panels, Unattended Remote Monitoring Nodes, LED Display and Signage Drivers, Educational and Prototyping Platforms.
Industrial Sensor Conditioning and Control
The PIC18F2610-I/SP suits industrial sensor conditioning loops where 25 I/O and 64 KB of Flash give enough headroom for protocol stacks, filtering algorithms, and EEPROM-backed calibration tables. With a 4.2-5.5 V supply matching the +5 V industrial rail and a 10 MIPS core, it can sample ADC inputs while bit-banging RS-485 or I2C sensors. The Fail-Safe Clock Monitor and separate Watchdog RC oscillator are key for unattended remote installations where a crystal failure must trigger a controlled shutdown, not a lockup.
Recommended
Low-Speed DC Motor and Stepper Control
The PIC18F2610-I/SP drives low-speed brushed DC motors and stepper drivers through its CCP/PWM outputs, with the 10 MIPS core delivering deterministic PWM update rates up to 40 kHz. The 25 I/O map comfortably to two H-bridge enable inputs, two current-sense ADC channels, and a fault-interrupt pin per axis. Its industrial -40 to +85 C range and 4.2-5.5 V supply fit 24 V industrial bus systems with a simple LDO pre-regulator.
Recommended
Human-Machine Interface (HMI) Panels
The PIC18F2610-I/SP powers cost-sensitive HMI panels that need to scan a 4x4 keypad, drive a character LCD, and chirp a buzzer while talking Modbus over UART. Its 64 KB Flash comfortably fits a menu state machine plus a lookup table, and the 25 I/O multiplex to the keypad matrix, LCD data bus, and control lines. The 28-SPDIP package is through-hole-friendly, simplifying prototyping and field replacement in industrial enclosures.
Recommended
Unattended Remote Monitoring Nodes
The PIC18F2610-I/SP is well matched to unattended remote monitoring nodes where the Fail-Safe Clock Monitor and dedicated Watchdog RC oscillator are mandatory. With 64 KB of Flash, the firmware can run a Modbus RTU slave, store calibration tables in EEPROM, and wake the firmware every minute to sample a sensor. The 5 V industrial supply keeps the design compatible with solar-charged battery systems using a 6 V SLA chemistry.
Recommended
LED Display and Signage Drivers
The PIC18F2610-I/SP can drive LED matrix signage through Charlieplexing or external shift-register chains, with the 10 MIPS core refreshing up to 25 columns at 100 Hz without flicker. The 64 KB Flash stores lookup tables for character fonts and animation frames, while 25 I/O map to data, clock, and enable lines for the LED drivers. Its 4.2-5.5 V supply pairs directly with 5 V LED-driver ICs without a level shifter.
Recommended
Educational and Prototyping Platforms
The PIC18F2610-I/SP remains a favorite for university embedded courses and hobbyist prototyping, thanks to its 28-SPDIP package that fits any breadboard and 64 KB Flash that comfortably accommodates student projects. With MPLAB X IDE and the PICkit 5 supporting in-circuit programming and debugging, students can iterate quickly. The PIC18 instruction set is well documented in the family datasheet, easing learning curves for first-time MCU users.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F2610-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F2510-I/SO | PIC18F2510-I/SP | PIC18F2520-I/SP | PIC18F2580-I/SP | PIC18F2620-I/SP | PIC18F25K80-I/SP |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP) | 28-SOIC / 28-SPDIP | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same |
| Flash Program Memory | 64 KB (32K x 16) | 32 KB (-50%) | 32 KB (-50%) | 32 KB (-50%) | 32 KB (-50%) | 64 KB (same) | 32 KB (-50%) |
| Data RAM | 3968 bytes | 1536 bytes | 1536 bytes | 1536 bytes | 3328 bytes | 3968 bytes (same) | 2048 bytes |
| CPU Performance | Up to 10 MIPS | Up to 10 MIPS | Up to 10 MIPS | Up to 10 MIPS | Up to 10 MIPS | Up to 10 MIPS | Up to 16 MIPS (K-series) |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 1.8 V to 5.5 V (wider) |
| CAN Bus | No | No | No | No | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (ECAN) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 25 | 24 (-1) |
Key Differentiators
- Largest Flash in the 28-pin PIC18F2X1X SPDIP family (vs PIC18F2510-I/SP)
- Industrial temperature range and Watchdog with dedicated RC (vs PIC18F25K80-I/SP)
- CAN-free 64 KB option at lower cost (vs PIC18F2620-I/SP)
Design Notes
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 20) and a bulk 10 uF tantalum or aluminum capacitor at the board supply entry. The PIC18F2610-I/SP switching transients on I/O toggling can couple into VDD; without local decoupling, ADC readings on AN0-AN3 will show periodic noise. For battery-powered designs, route the MCU to a separate LDO branch to keep the analog reference (RA3/VREF+) clean.
Never leave MCLR floating. Tie MCLR (pin 1) to VDD through a 10 kohm resistor, with a 100 nF capacitor to VSS for noise immunity, unless an external supervisor drives it. A floating MCLR is the #1 cause of unexplained PIC18 resets in the field, and the PIC18F2610-I/SP has no internal MCLR pull-up. Add a TVS diode if the board is exposed to ESD.
Keep the crystal (or ceramic resonator) traces from OSC1 (pin 9) and OSC2 (pin 10) as short as possible and surround them with a ground pour to minimize radiated noise. If using the internal 31 kHz-8 MHz oscillator block, leave OSC1/OSC2 as RA7/RA6 digital I/O but route them away from analog input traces. Route the ICSP PGC (pin 27) and PGD (pin 28) to a 6-pin header without inline resistors, so the PICkit 5 can program the part without rework.
The PIC18F2610-I/SP in 28-SPDIP at 10 MIPS and 5 V typically dissipates under 100 mW, so thermal management is rarely required. However, in a sealed enclosure with no airflow, the die can approach +90 C at +85 C ambient and the worst-case I/O toggle load. Estimate: 50 mA active current at 5 V = 250 mW, with theta_JA ~70 C/W for 28-SPDIP yields a 17 C rise - acceptable. Always derate by 20 percent for production tolerance.
Compliance Information
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified - this is a commercial/industrial grade part, not automotive. Halogen-free status not explicitly listed in Microchip datasheet - marked unknown per Data Authenticity Rules.
