PIC18F4610-E/P - 8-bit MCU, 64KB Flash, 40MHz, 40-PDIP | Microchip
MPN: PIC18F4610-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.95 | $8.95 |
| 10 | $8.1 | $81.00 |
| 100 | $7.25 | $725.00 |
| 500 | $6.55 | $3,275.00 |
| 1,000 | $5.9 | $5,900.00 |
PIC18F4610-E/P Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path. The PIC18 family uses an enhanced RISC instruction set with 16-bit opcodes and Harvard architecture, separating program and data memory for deterministic single-cycle execution. Microcontrollers sit at the bottom of the embedded compute hierarchy: MCU -> embedded controller -> semiconductor IC, and are the workhorse of cost-sensitive and power-aware designs.
Key features of the PIC18F4610-E/P include 64KB (32K x 16) of self-programmable flash, 3968 bytes of data RAM, 1024 bytes of EEPROM, and 36 I/O lines that share package pins with peripherals. The integrated 10-bit ADC offers up to 13 input channels, and nanoWatt technology provides multiple sleep modes with current consumption down to the sub-microampere range.
Architecturally, the PIC18F4610-E/P uses an enhanced Harvard core with a 31-level hardware stack, hardware multiplier, and dual oscillator options (primary and secondary) that allow fail-safe clock switching between HS, XT, LP, RC, and internal oscillator modes. The wide 4.2V-5.5V supply range and 25MHz-40MHz clock make it well suited to industrial 5V logic environments that legacy 3.3V ARM parts cannot directly address.
Typical applications include industrial control panels, automotive body electronics, HVAC controllers, instrumentation, and consumer appliance user interfaces where 5V tolerance, generous I/O count, and long-term Microchip supply stability are deciding factors.
When designing with this device, remember the -E suffix indicates the extended industrial temperature grade (-40C to +125C). Pair the MCU with MPLAB X IDE, XC8 compiler, and PICkit 5 or ICD 4 programmer/debugger for code development. Budget for adequate decoupling (100nF + 10uF bulk) close to VDD/VSS pins.
This page synthesizes distributor pricing, drop-in PIC18F family alternatives, and practical design considerations that go beyond the manufacturer datasheet - particularly useful when comparing the -E extended-temp grade versus the -I industrial grade.
Drop-in alternatives for PIC18F4610-E/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 PIC18F4610-E/P (same form factor and footprint) — differing in Package, Program Memory (Flash), Timers, Operating Temperature, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F4610-I/P
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →PIC18F4510-I/P
✅ Drop-In✓ In Stock
$5.27 / Unit
View Datasheet →PIC18F4410-I/P
✅ Drop-In✓ In Stock
$4.7 / Unit
View Datasheet →PIC18F4580-I/P
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC18F4585-I/PT
✅ Drop-In✓ In Stock
$5.73 / Unit
View Datasheet →PIC18F4520-I/P
✅ Drop-In✓ In Stock
$5.35 / Unit
View Datasheet →PIC18F4610-E/P Maximum Ratings & Electrical Characteristics
| Device Family | PIC18F |
| Core Architecture | 8-bit PIC18 Enhanced RISC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 3968 bytes |
| Data EEPROM | 1024 bytes |
| Maximum CPU Speed | 40 MHz |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Package | 40-pin PDIP (through-hole) |
| Mounting Type | Through-Hole |
| Operating Temperature (E grade) | -40 C to +125 C |
| Communication Peripherals | USART (1), MSSP (SPI/I2C) |
| Timers | Timer0, Timer1, Timer2, Timer3 |
| CCP Modules | 2x CCP + 1x ECCP |
| Power-Saving Modes | nanoWatt (Run, Idle, Sleep) |
| RoHS Status | Compliant (Pb-free) |
| Instruction Set | PIC18 enhanced, 16-bit opcodes |
PIC18F4610-E/P Pin Configuration
| Pin 1 | MCLR/RE3 — Master Clear (reset) input or digital input RE3 |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Pin 8 | RE0/RD/AN5 — PORTE bit 0 / RD control / analog input 5 |
| Pin 9 | RE1/WR/AN6 — PORTE bit 1 / WR control / analog input 6 |
| Pin 10 | RE2/CS/AN7 — PORTE bit 2 / CS control / analog input 7 |
| Pin 11 | VDD — Positive power supply (4.2V to 5.5V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKI — Crystal oscillator input / external clock in |
| Pin 14 | OSC2/CLKO — Crystal oscillator output / clock out |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / T1 clock in |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RD0/PSP0 — PORTD bit 0 / parallel slave port data 0 |
| Pin 20 | RD1/PSP1 — PORTD bit 1 / parallel slave port data 1 |
| Pin 21 | RD2/PSP2 — PORTD bit 2 / parallel slave port data 2 |
| Pin 22 | RD3/PSP3 — PORTD bit 3 / parallel slave port data 3 |
| Pin 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 25 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Pin 26 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Pin 27 | RD4/PSP4 — PORTD bit 4 / parallel slave port data 4 |
| Pin 28 | RD5/PSP5 — PORTD bit 5 / parallel slave port data 5 |
| Pin 29 | RD6/PSP6 — PORTD bit 6 / parallel slave port data 6 |
| Pin 30 | RD7/PSP7 — PORTD bit 7 / parallel slave port data 7 |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive power supply (4.2V to 5.5V) |
| Pin 33 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Pin 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pin 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pin 36 | RB3/CCP2 — PORTB bit 3 / CCP2 (alt) |
| Pin 37 | RB4 — PORTB bit 4 (interrupt-on-change) |
| Pin 38 | RB5 — PORTB bit 5 (interrupt-on-change) |
| Pin 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 40 | RB7/PGD — PORTB bit 7 / ICSP data |
Typical Applications
PIC18F4610-E/P is suitable for 7 applications: Industrial Control Panels, HVAC and Building Automation Controllers, Consumer Appliance User Interfaces, Test and Measurement Instrumentation, Automotive Body Electronics (Non-Safety), Educational and Development Platforms, Sensor Aggregator Nodes.
Industrial Control Panels
The PIC18F4610-E/P is well suited to industrial control panels thanks to its 5V-tolerant I/O, 36 GPIO, and the 4.2-5.5V VDD range that matches 5V PLC logic. With 64 KB of flash and 3968 B of RAM, it can host Modbus RTU slave stacks, ladder-logic interpreters, and HMI keyscan firmware while leaving room for bootloader updates. The -E extended temperature grade (-40 C to +125 C) supports unconditioned cabinet mounting. Pair with an external RS-485 transceiver for industrial fieldbus; the integrated USART and MSSP (SPI/I2C) cover legacy panel-meter and EEPROM interfacing.
Recommended
HVAC and Building Automation Controllers
Building automation controllers running BACnet MS/TP, Modbus, or proprietary protocols benefit from the PIC18F4610-E/P's combination of 40 MHz throughput (10 MIPS) and 5V tolerance for direct interface to triac drivers and 24 VAC sense circuits. The 36 I/O pins support multi-zone damper/valve control with room for keypad and LCD interfacing via SPI. nanoWatt sleep modes reduce idle consumption to microampere levels for battery-backed thermostat operation. The -40 to +125 C range handles unconditioned rooftop equipment enclosures without additional thermal protection.
Recommended
Consumer Appliance User Interfaces
White-goods user interfaces - washing machines, ovens, refrigerators - use the PIC18F4610-E/P for its cost-effectiveness (~$6 in volume), 5V tolerant I/O that interfaces directly to LED drivers, and the extended temperature grade for hot-appliance environments. The 10-bit ADC reads potentiometers and NTC temperature sensors for closed-loop cooking and wash-cycle control. With 64 KB flash the MCU supports segmented-LCD or character-LCD menu UIs, buzzer tone generation via CCP PWM, and capacitive-touch firmware through the CTMU peripheral.
Recommended
Test and Measurement Instrumentation
Bench-top instruments and panel meters use the PIC18F4610-E/P as a controller for the front panel, sensor conditioning, and PC-side USB-to-UART bridge. The 10-bit ADC with up to 13 channels handles multi-range voltage/current measurements, while the MSSP SPI bus drives high-resolution external ADCs (e.g., MCP3551) for precision applications. The PIC18F4610-E/P's 64 KB flash fits full calibration tables and IEC 61010-031 safety UI logic, and the 5V I/O simplifies interfacing to legacy analog front-ends.
Recommended
Automotive Body Electronics (Non-Safety)
Body-electronics modules such as seat controllers, mirror adjusters, and lighting drivers use the PIC18F4610-E/P for cost-driven designs that do not require AEC-Q100 qualification. The -40 C to +125 C extended grade withstands cabin and engine-bay environments, and the PWM/ECCP modules drive LED arrays, motors, and stepper coils. For true AEC-Q100 automotive body ECUs, select a PIC18F46K22-I/P variant instead; the 4610 remains popular in aftermarket and non-safety automotive accessories.
Recommended
Educational and Development Platforms
The PIC18F4610-E/P's 40-pin PDIP through-hole package makes it breadboard- and perfboard-friendly, which is ideal for university microcontroller courses, hobbyist projects, and rapid prototyping. Supported by MPLAB X IDE, the free XC8 compiler, and the PICkit 5 in-circuit debugger, students can develop firmware in C or assembly and probe every I/O pin with standard 0.1-inch headers. 64 KB flash supports full protocol stacks and RTOS kernels (FreeRTOS port), making it a realistic teaching target for embedded systems curricula.
Recommended
Sensor Aggregator Nodes
Industrial sensor nodes aggregating analog and digital sensors over RS-485 or I2C use the PIC18F4610-E/P as a low-cost hub MCU. The 36 I/O multiplex keypad, LCD, and multiple SPI/I2C sensors simultaneously, while 3968 bytes of RAM buffer Modbus transactions before forwarding. nanoWatt sleep currents in the microampere range enable solar-powered remote sensor installations. The 5V tolerance interfaces directly to 4-20 mA loop-powered sensor signal chains common in process automation.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F4610-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F4610-I/P | PIC18F4510-I/P | PIC18F4410-I/P | PIC18F4580-I/P | PIC18F4585-I/P | PIC18F4520-I/P |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-40 | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same |
| Program Flash | 64 KB | 64 KB | 32 KB | 16 KB | 32 KB | 48 KB | 32 KB |
| Data RAM | 3968 B | 3968 B | 1536 B | 768 B | 1536 B | 3328 B | 1536 B |
| Data EEPROM | 1024 B | 1024 B | 256 B | 256 B | 256 B | 1024 B | 256 B |
| Max CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40 to +125 C (E grade) | -40 to +85 C (I grade) | -40 to +85 C (I grade) | -40 to +85 C (I grade) | -40 to +85 C (I grade) | -40 to +85 C (I grade) | -40 to +85 C (I grade) |
| CAN Peripheral | No | No | No | No | Yes (CAN 2.0B) | Yes (CAN 2.0B) | No |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 | 36 |
| ADC | 10-bit, 13 channels | 10-bit, 13 channels | 10-bit, 13 channels | 10-bit, 13 channels | 10-bit, 8 channels | 10-bit, 11 channels | 10-bit, 13 channels |
Key Differentiators
- Highest flash density in PIC18F46xx PDIP-40 family (vs PIC18F4510-I/P)
- Extended -40 to +125 C industrial temperature grade (vs PIC18F4610-I/P)
- Largest RAM in PIC18F46xx legacy 5V family (vs PIC18F4580-I/P)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pin pair (pins 11/12 and 31/32) to suppress switching noise from internal core transients. Add a 10 uF bulk tantalum or ceramic capacitor near the package to handle peripheral inrush currents when the ADC or PWM modules switch simultaneously. Estimated: with all 36 I/O lines switching at 5V/20mA, peak VDD current can exceed 100 mA for a few nanoseconds, so the bulk capacitor is essential.
The MCLR pin (pin 1) is shared with RE3 digital input. When MCLR is enabled (default after configuration-word programming), driving this pin low resets the MCU - including during in-circuit programming. Always isolate the MCLR line from external circuitry with a 10 kohm pull-up and consider a series resistor if the pin is also used as RE3 input to prevent accidental reset during normal operation. Per Microchip errata DS39609, also confirm CONFIG3H settings for the MCLR pin function before laying out the PCB.
Estimated: at maximum operating conditions (VDD=5.5V, 40 MHz, all peripherals active), the PIC18F4610-E/P draws up to 60 mA. Power dissipation is therefore bounded by approximately 0.33 W, well below the thermal limit of any PDIP-40 package. The -40 to +125 C extended industrial grade is the binding constraint in high-ambient installations (rooftop HVAC, under-hood automotive accessories); ensure enclosure thermals keep junction-to-ambient below the 150 C absolute maximum per the datasheet.
Route the crystal traces (OSC1/OSC2, pins 13-14) short and symmetric, with a ground guard ring, to avoid capacitive loading that detunes the oscillator. Keep ADC analog traces (RA0-RA5, RE0-RE2) separated from digital switching lines by at least 0.5 mm or a ground pour to prevent digital noise coupling into ADC readings. The analog AVSS/AVDD pins share digital VSS/VDD internally on this family - use star-ground topology at the MCU supply pins for best ADC performance.
Compliance Information
Per Microchip PIC18F4610 product page, the part is Pb-free (matte tin finish) and RoHS compliant. It is not AEC-Q100 qualified; for true automotive applications choose a PIC18 K-series variant. Lead-free and halogen-free per Microchip material declarations.
