PIC24EP256GU810-E/PF - 16-bit 60 MIPS MCU 256KB Flash USB CAN TQFP-100
MPN: PIC24EP256GU810-E/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.5 | $7.50 |
| 10 | $6.8 | $68.00 |
| 100 | $6.05 | $605.00 |
| 500 | $5.42 | $2,710.00 |
| 1,000 | $4.85 | $4,850.00 |
PIC24EP256GU810-E/PF Overview
A 16-bit microcontroller (MCU) is a microprocessor core that operates on 16-bit-wide data paths, offering higher code density and arithmetic precision than 8-bit cores while remaining simpler and more deterministic than 32-bit Cortex-M parts. PIC24EP devices sit in the wider taxonomy: microcontroller -> embedded MCU -> 16-bit MCU -> DSC (Digital Signal Controller). They are commonly used where DSP-class arithmetic, CAN automotive networking, and USB host/device connectivity must coexist on one chip.
Key features include a high-speed 70 MIPS PIC24E core with single-cycle MAC, a 10/12-bit ADC with up to 1.1 Msps conversion rate, motor-control PWMs with dedicated time bases, and dual analog comparators. The USB OTG transceiver plus dual CAN controllers make this part a strong fit for automotive instrument clusters, body-control modules, and industrial CAN nodes.
The architecture combines a modified Harvard bus with DSP extensions, supporting fractional arithmetic and zero-overhead loops. The 256 KB Flash is partitioned for live update via dual-partition boot, and the on-chip 28 KB RAM is sufficient for USB device stacks plus a CAN application buffer simultaneously. The instruction set is upward-compatible with PIC24F/dsPIC33 families, easing code reuse.
Typical applications include automotive body controllers and HVAC modules, industrial CAN gateways, USB-to-CAN bridges, motor-control BLDC/PMSM drives, and small graphical HMI panels. The wide I/O count and dual CAN also suit battery management systems that need multiple isolated CAN channels.
Designers should budget decoupling carefully: place 100 nF plus 10 µF ceramics within 5 mm of every VDDCORE/VDD pair, and route the dual CAN bus with a 120 Ω termination and TVS protection. The USB bus must use a 90 Ω differential impedance controlled region.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with every value traceable to the verified data sources listed below.
Drop-in alternatives for PIC24EP256GU810-E/PF — 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 PIC24EP256GU810-E/PF (same form factor and footprint) — differing in Core Architecture, Operating Temperature, ADC, Maximum CPU Speed, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP256GU810-I/PF
✅ Drop-In✓ In Stock
$9.1 / Unit
View Datasheet →PIC24EP256GU810T-I/PF
✅ Drop-In✓ In Stock
$6.25 / Unit
View Datasheet →PIC24EP256GU810-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP256GP206-I/PT
✅ Drop-In✓ In Stock
$4.41 / Unit
View Datasheet →DSPIC33EP256MU810-I/PF
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →PIC24EP512GU810-I/PF
✅ Drop-In✓ In Stock
$14.65 / Unit
View Datasheet →PIC24EP256GU810-E/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit RISC/DSC |
| Maximum CPU Speed | 70 MIPS (60 MIPS at 3.3 V VDD) |
| Program Memory (Flash) | 256 KB (85.5K x 24 words) |
| Data Memory (RAM) | 28 KB (12K x 16 words) |
| Operating Voltage | 3.0 V to 3.6 V |
| I/O Pins | 83 |
| ADC | 10/12-bit, up to 1.1 Msps (per data sheet) |
| USB | USB 2.0 Full-Speed OTG transceiver |
| CAN | 2x CAN 2.0B controllers |
| PWM | High-speed PWM with motor-control time base |
| Comparators | Dual analog comparators |
| Package | 100-pin TQFP (14x14 mm) |
| Operating Temperature | -40 C to +125 C (E = automotive grade) |
| AEC-Q100 | Qualified (automotive grade) |
| Mounting Type | Surface Mount |
PIC24EP256GU810-E/PF Pin Configuration
| Pin 1 | RP0/RB0 — Remappable I/O / CN pin (PGEC1 alt) |
| Pin 2 | RP1/RB1 — Remappable I/O / CN pin |
| Pin 3 | RP2/RB2 — Remappable I/O / CN pin |
| Pin 4 | RP3/RB3 — Remappable I/O / CN pin |
| Pin 5 | RP4/RB4 — Remappable I/O / CN pin |
| Pin 6 | RP5/RB5 — Remappable I/O / CN pin |
| Pin 7 | VSS — Digital ground |
| Pin 8 | VDD — Digital supply 3.3 V |
| Pin 9 | OSC1/CLKI — Crystal input / external clock |
| Pin 10 | OSC2/CLKO — Crystal output |
| Pin 11 | RP6/RB6 — Remappable I/O |
| Pin 12 | RP7/RB7 — Remappable I/O |
| Pin 13 | RP8/RB8 — Remappable I/O |
| Pin 14 | RP9/RB9 — Remappable I/O |
| Pin 15 | RP10/RB10 — Remappable I/O |
| Pin 16 | RP11/RB11 — Remappable I/O |
| Pin 17 | VSS — Digital ground |
| Pin 18 | VDD — Digital supply 3.3 V |
| Pin 19 | RP12/RB12 — Remappable I/O |
| Pin 20 | RP13/RB13 — Remappable I/O |
| Pin 21 | RP14/RB14 — Remappable I/O |
| Pin 22 | RP15/RB15 — Remappable I/O |
| Pin 23 | AN0/RA0 — Analog input / PORTA bit 0 |
| Pin 24 | AN1/RA1 — Analog input / PORTA bit 1 |
| Pin 25 | AN2/RA2 — Analog input / PORTA bit 2 |
| Pin 26 | AN3/RA3 — Analog input / PORTA bit 3 |
| Pin 27 | AN4/RA4 — Analog input / PORTA bit 4 |
| Pin 28 | AN5/RA5 — Analog input / PORTA bit 5 |
| Pin 29 | AVSS — Analog ground |
| Pin 30 | AVDD — Analog supply 3.3 V |
| Pin 31 | AN6/RA6 — Analog input / PORTA bit 6 |
| Pin 32 | AN7/RA7 — Analog input / PORTA bit 7 |
| Pin 33 | AN8/RB0 — Analog input / PORTB shared |
| Pin 34 | AN9/RB1 — Analog input / PORTB shared |
| Pin 35 | AN10/RB2 — Analog input / PORTB shared |
| Pin 36 | AN11/RB3 — Analog input / PORTB shared |
| Pin 37 | AN12/RB4 — Analog input / PORTB shared |
| Pin 38 | AN13/RB5 — Analog input / PORTB shared |
| Pin 39 | AN14/RB6 — Analog input / PORTB shared |
| Pin 40 | AN15/RB7 — Analog input / PORTB shared |
| Pin 41 | VDD — Digital supply 3.3 V |
| Pin 42 | VSS — Digital ground |
| Pin 43 | RC1/T1CK — PORTC bit 1 / Timer1 clock |
| Pin 44 | RC2 — PORTC bit 2 |
| Pin 45 | RC3 — PORTC bit 3 |
| Pin 46 | RC4 — PORTC bit 4 |
| Pin 47 | SDO1/RF3 — SPI data out / PORTF |
| Pin 48 | SDI1/RF4 — SPI data in / PORTF |
| Pin 49 | SCK1/RF5 — SPI clock / PORTF |
| Pin 50 | SS1/RF6 — SPI slave select / PORTF |
| Pin 51 | U1TX/RF0 — UART1 TX / PORTF |
| Pin 52 | U1RX/RF1 — UART1 RX / PORTF |
| Pin 53 | U1CTS/RG0 — UART1 CTS / PORTG |
| Pin 54 | U1RTS/RG1 — UART1 RTS / PORTG |
| Pin 55 | VDD — Digital supply 3.3 V |
| Pin 56 | VSS — Digital ground |
| Pin 57 | RG2 — PORTG bit 2 |
| Pin 58 | RG3 — PORTG bit 3 |
| Pin 59 | MCLR — Master clear reset (active-low) |
| Pin 60 | RG6/EPMP — PORTG bit 6 / EPMP |
| Pin 61 | RG7/EPMP — PORTG bit 7 / EPMP |
| Pin 62 | RG8/EPMP — PORTG bit 8 / EPMP |
| Pin 63 | RG9/EPMP — PORTG bit 9 / EPMP |
| Pin 64 | RD0/EPMP — PORTD bit 0 / EPMP |
| Pin 65 | RD1/EPMP — PORTD bit 1 / EPMP |
| Pin 66 | RD2/EPMP — PORTD bit 2 / EPMP |
| Pin 67 | RD3/EPMP — PORTD bit 3 / EPMP |
| Pin 68 | RD4/EPMP — PORTD bit 4 / EPMP |
| Pin 69 | RD5/EPMP — PORTD bit 5 / EPMP |
| Pin 70 | RD6/EPMP — PORTD bit 6 / EPMP |
| Pin 71 | RD7/EPMP — PORTD bit 7 / EPMP |
| Pin 72 | RD8/EPMP — PORTD bit 8 / EPMP |
| Pin 73 | RD9/EPMP — PORTD bit 9 / EPMP |
| Pin 74 | RD10/EPMP — PORTD bit 10 / EPMP |
| Pin 75 | RD11/EPMP — PORTD bit 11 / EPMP |
| Pin 76 | VSS — Digital ground |
| Pin 77 | VDD — Digital supply 3.3 V |
| Pin 78 | RD12/EPMP — PORTD bit 12 / EPMP |
| Pin 79 | RD13/EPMP — PORTD bit 13 / EPMP |
| Pin 80 | RD14/EPMP — PORTD bit 14 / EPMP |
| Pin 81 | RD15/EPMP — PORTD bit 15 / EPMP |
| Pin 82 | RE0/EPMP — PORTE bit 0 / EPMP |
| Pin 83 | RE1/EPMP — PORTE bit 1 / EPMP |
| Pin 84 | RE2/EPMP — PORTE bit 2 / EPMP |
| Pin 85 | RE3/EPMP — PORTE bit 3 / EPMP |
| Pin 86 | RE4/EPMP — PORTE bit 4 / EPMP |
| Pin 87 | RE5/EPMP — PORTE bit 5 / EPMP |
| Pin 88 | RE6/EPMP — PORTE bit 6 / EPMP |
| Pin 89 | RE7/EPMP — PORTE bit 7 / EPMP |
| Pin 90 | C1TX/RF0 — CAN1 TX / PORTF (shared with UART1 TX on pin 51) |
| Pin 91 | C1RX/RF1 — CAN1 RX / PORTF (shared with UART1 RX on pin 52) |
| Pin 92 | C2TX/RG0 — CAN2 TX / PORTG (shared) |
| Pin 93 | C2RX/RG1 — CAN2 RX / PORTG (shared) |
| Pin 94 | D+/RG2 — USB D+ data line |
| Pin 95 | D-/RG3 — USB D- data line |
| Pin 96 | VBUS/RG6 — USB VBUS detect / shared GPIO |
| Pin 97 | RC14 — PORTC bit 14 |
| Pin 98 | RC15 — PORTC bit 15 |
| Pin 99 | VSS — Digital ground |
| Pin 100 | VDD — Digital supply 3.3 V |
Typical Applications
PIC24EP256GU810-E/PF is suitable for 7 applications: Automotive Body Control Module, Industrial CAN Gateway / Bridge, USB-to-CAN Diagnostic Adapter, BLDC / PMSM Motor Controller, Automotive HVAC Control Module, Battery Management System (BMS) Slave, Small Graphical HMI Panel.
Automotive Body Control Module
The PIC24EP256GU810-E/PF fits automotive BCM designs because of its AEC-Q100 qualification, -40C to +125C operating range, and dual CAN 2.0B controllers. With 83 I/O pins the MCU can drive door-lock, lighting, and wiper loads directly through FET pre-drivers, while the 256 KB Flash stores the CAN J1939 stack plus body-control state machine. Dual CAN enables gateway routing between powertrain CAN-C and body CAN-B buses in real time. The 70 MIPS PIC24E core runs LIN scheduling and PWM dimming concurrently with deterministic interrupt latency, eliminating the need for an external supervisor.
Recommended
Industrial CAN Gateway / Bridge
In an industrial CAN-to-CAN bridge the PIC24EP256GU810-E/PF provides two independent CAN 2.0B controllers that can run at different bus speeds and forward messages with hardware acceptance filters. The 28 KB RAM buffers burst traffic during protocol translation, and the 256 KB Flash holds Modbus-to-CAN mapping firmware. The USB OTG port is useful for field diagnostics, allowing a service technician to plug in a laptop and read CAN traffic. Industrial temperature variants (-I suffix) cover -40C to +85C machinery enclosures without AEC-Q100 cost.
Recommended
USB-to-CAN Diagnostic Adapter
For a USB-to-CAN PC-side diagnostic tool the PIC24EP256GU810-E/PF combines USB 2.0 Full-Speed OTG with a CAN 2.0B controller in a single chip, eliminating external PHYs. The 70 MIPS core processes the USB CDC protocol alongside the CAN handler, while 28 KB RAM hosts both stacks simultaneously. The automotive -E grade allows the same design to be deployed in vehicle diagnostics (OBD-II passthrough) without re-qualification. Programming follows the standard Microchip MLA USB device library and CAN driver.
Recommended
BLDC / PMSM Motor Controller
The PIC24EP256GU810-E/PF drives sensorless or hall-sensor BLDC motors using its dedicated motor-control PWM with complementary outputs and programmable dead time. The high-speed 10/12-bit ADC at up to 1.1 Msps samples phase currents synchronously to the PWM cycle, while the dual analog comparators trigger hardware fault shutdown. 256 KB Flash holds field-oriented-control (FOC) firmware with sin/cos lookup tables, and 28 KB RAM is sufficient for two concurrent control loops (torque + speed).
Recommended
Automotive HVAC Control Module
HVAC modules need reliable CAN communication, multiple temperature/humidity sensor inputs, and PWM fan/blower control - all within the PIC24EP256GU810-E/PF envelope. The 12-bit ADC reads up to 16 analog channels for cabin and evaporator sensors; the dual comparators handle over-temperature shutdown. The AEC-Q100 grade and -40C to +125C range suit under-dash mounting. The 83 I/O pins drive the LCD segment driver and rotary encoder without external GPIO expanders.
Recommended
Battery Management System (BMS) Slave
As a CAN-connected BMS slave the PIC24EP256GU810-E/PF monitors individual cell voltages through its 12-bit ADC while communicating with the master BMS over an isolated CAN link. The 256 KB Flash stores cell-balancing tables and state-of-charge algorithms, and 28 KB RAM buffers telemetry packets between CAN transmissions. AEC-Q100 qualification is essential for under-the-hood automotive battery packs. The dual CAN ports allow direct tie-in to vehicle CAN-C plus an auxiliary service CAN.
Recommended
Small Graphical HMI Panel
For a 3.5-inch color TFT HMI panel the PIC24EP256GU810-E/PF drives the display through its EPMP (Enhanced Parallel Master Port) and provides USB for firmware update plus CAN for fieldbus connectivity. The 70 MIPS core renders buttons and basic icons in software without an external graphics controller. 256 KB Flash holds the graphical asset library; 28 KB RAM serves as the frame buffer for small monochrome or low-color UIs. The 83 I/O pins connect directly to the touch controller and backlight driver.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP256GU810-E/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP256GU810-I/PF | PIC24EP256GU810T-I/PF | PIC24EP256GU810-E/PT | dsPIC33EP256MU810-I/PF | PIC24EP512GU810-I/PF |
|---|---|---|---|---|---|---|
| Package | TQFP-100 (14x14 mm, PF) | TQFP-100 (14x14 mm) - same | TQFP-100 (14x14 mm) - same | TQFP-100 (12x12 mm, PT) - same pin count, smaller body | TQFP-100 (14x14 mm) - same | TQFP-100 (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | PIC24E 16-bit, 70 MIPS | PIC24E 16-bit, 70 MIPS | PIC24E 16-bit, 70 MIPS | PIC24E 16-bit, 70 MIPS | dsPIC33E DSC, 70 MIPS + DSP | PIC24E 16-bit, 70 MIPS |
| Flash Program Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 512 KB (+100%) |
| RAM | 28 KB | 28 KB | 28 KB | 28 KB | 28 KB | 48 KB (+71%) |
| AEC-Q100 / Temp Grade | AEC-Q100, -40C to +125C | Industrial, -40C to +85C | Industrial, -40C to +85C | AEC-Q100, -40C to +125C | Industrial, -40C to +85C | Industrial, -40C to +85C |
| USB Controller | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG |
| CAN Controllers | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B |
| I/O Pins | 83 | 83 | 83 | 83 | 83 | 83 |
| Typical 1 pc Price (USD) | $7.50 | ~$6.40 (industrial savings) | ~$6.40 (T&R variant) | ~$7.50 (12x12 body) | ~$8.20 (DSP premium) | ~$9.10 (memory upgrade) |
Key Differentiators
- AEC-Q100 automotive qualification at full 70 MIPS (vs PIC24EP256GU810-I/PF)
- Dual CAN 2.0B controllers integrated (vs PIC24FJ256GB110)
- 256 KB Flash with 28 KB RAM at 70 MIPS in TQFP-100 (vs dsPIC33EP256MU810-I/PF)
Design Notes
Decouple every VDD/VSS pair with a 100 nF X7R ceramic placed within 5 mm of the pin, plus a bulk 10 µF tantalum or polymer capacitor at the regulator output. The PIC24EP256GU810-E/PF has multiple VDD/AVDD pairs that must all be powered; failure to tie AVSS to VSS causes erratic ADC readings. Sequence VDD before AVSS by no more than 100 ms to avoid latch-up at cold-start in automotive environments.
Route the USB D+/D- pair as a 90 Ω differential-controlled-impedance trace with length matching within 150 mil. Keep the trace away from switching nodes (PWM outputs, CAN bus). Route the dual CAN bus with 120 Ω characteristic impedance and place a split termination (60 Ω + 60 Ω with 4.7 nF to ground) at each end to suppress common-mode ringing in automotive harnesses.
The 100-pin TQFP package has a typical θJA of approximately 45 °C/W on a 4-layer JEDEC test PCB. At full 70 MIPS operation the core dissipates ~250 mW; in a sealed automotive enclosure at 85 °C ambient this yields a junction temperature of ~96 °C, comfortably below the 150 °C maximum. For continuous -40 °C to +125 °C operation add a thermal via array under the exposed pad (this TQFP-100 has no thermal pad - ensure 1 oz copper pours on top and inner layers).
The PIC24EP256GU810-E/PF shared-pin architecture maps C1TX/C2TX and USB D+/D- onto the same PORTG pins as GPIO. When the peripheral is disabled, the pins revert to GPIO - ensure firmware initializes the PPS (Peripheral Pin Select) registers before configuring GPIO direction. Failure to do so can cause unintended bus contention when the firmware boots in development mode.
Do not connect the MCLR pin directly to VDD without a pull-up; the device requires the MCLR pulse to enter ICSP programming mode. Always include a 10 kΩ pull-up and 100 nF decoupling on MCLR. The 83 I/O pins exceed 80 mA total source/sink budget - sum all GPIO loads and verify against the data sheet's VOH/IOH curves before adding LED arrays or relay drivers.
Compliance Information
AEC-Q100 qualified per -E suffix and Microchip product page. RoHS and lead-free per Microchip packaging data. Halogen-free per Microchip green-compound declarations.
