PIC18F8628T-I/PT - 8-Bit 40MHz 96KB Flash MCU | Microchip | TQFP-80
MPN: PIC18F8628T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $9.1 | $91.00 |
| 100 | $8.45 | $845.00 |
| 500 | $7.8 | $3,900.00 |
| 1,000 | $7.1 | $7,100.00 |
| 3,000 | $6.4 | $19,200.00 |
PIC18F8628T-I/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data RAM, and a configurable set of peripheral interfaces. The PIC18 family represents Microchip's 8-bit RISC architecture, positioned in the hierarchy: PIC18 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "F" prefix designates Flash program memory, enabling in-circuit reprogramming via ICSP, while the LF variants extend operation to lower supply voltages.
Key features of the PIC18F8628T-I/PT include 96 KB of self-programmable Flash, 4 KB of general-purpose RAM, 1 KB of data EEPROM for non-volatile parameter storage, a 12-bit (12B) ADC, and four serial ports comprising dual MSSP (I2C/SPI) plus dual EUSART (LIN-capable). Additional capabilities include nanoWatt power management for low-power modes, an external memory bus capable of addressing up to 2 MB, and 70+ digital I/O lines on the 80-pin TQFP package.
Architecturally, the PIC18F8628 employs an enhanced Harvard RISC core with 200 ns instruction cycle, hardware multiplier, and 31-level hardware stack. This 8-bit architecture delivers deterministic interrupt latency and strong C-compiler (MPLAB XC8) support, while the 12-bit ADC and dual analog comparators simplify mixed-signal sensing tasks. The peripheral set is engineered for simultaneous communication with multiple buses.
Typical applications include industrial control panels, automotive body and LIN-bus nodes, large-format user-interface boards, and home appliances that benefit from connectivity plus storage. The wide peripheral mix is equally well-suited to instrumentation front-ends and point-of-sale terminals with display/keypad subsystems.
When designing with this device, allocate adequate decoupling (100 nF + 10 uF) adjacent to every VDD/VSS pair, route the 40 MHz crystal traces short and guarded, and respect the 80-pin TQFP pad geometry (12x12 mm body, 0.5 mm pitch) for manufacturability. The ICSP pins (PGECx/PGEDx) must remain accessible for field updates.
This page synthesizes distributor pricing, drop-in same-package alternatives sourced from Microchip's PIC18 family, and PCB-level design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC18F8628T-I/PT — 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 PIC18F8628T-I/PT (same form factor and footprint) — differing in Core Architecture, Package, Mounting Type, I/O Pins, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F8628-I/PT
✅ Drop-In✓ In Stock
$9.95 / Unit
View Datasheet →PIC18LF8628T-I/PT
✅ Drop-In✓ In Stock
$5.46 / Unit
View Datasheet →PIC18F8525T-I/PT
✅ Drop-In✓ In Stock
$5.12 / Unit
View Datasheet →PIC18F8520T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F8627T-E/PT
✅ Drop-In✓ In Stock
$7.2 / Unit
View Datasheet →PIC18F8722T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F8628T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (PIC18) |
| Program Memory Type | Flash (self-programmable) |
| Program Memory Size | 96 KB (48K x 16) |
| Data RAM | 4 KB |
| Data EEPROM | 1 KB (1024 bytes) |
| Maximum CPU Frequency | 40 MHz |
| Instruction Cycle | 200 ns @ 40 MHz |
| ADC Resolution | 12-bit (12B) |
| I/O Pins | 70+ (80-pin package) |
| Serial Interfaces | 2x MSSP (I2C/SPI), 2x EUSART (LIN-capable) |
| Package | 80-pin TQFP (12x12 mm, 0.5 mm pitch) |
| Temperature Grade | Industrial (-40C to +85C), 'I' suffix |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per Microchip product page) |
| Power-Save Feature | nanoWatt low-power modes |
| External Memory Bus | Yes (up to 2 MB addressable) |
PIC18F8628T-I/PT Pin Configuration
| Pin 1 | RH0/AN12 — Digital I/O RH0 or analog input AN12 |
| Pin 2 | RH1/AN13 — Digital I/O RH1 or analog input AN13 |
| Pin 3 | RH2/AN14 — Digital I/O RH2 or analog input AN14 |
| Pin 4 | RH3/AN15 — Digital I/O RH3 or analog input AN15 |
| Pin 5 | RH4/AN16 — Digital I/O RH4 or analog input AN16 |
| Pin 6 | RH5/AN17 — Digital I/O RH5 or analog input AN17 |
| Pin 7 | RH6/AN18 — Digital I/O RH6 or analog input AN18 |
| Pin 8 | RH7/AN19 — Digital I/O RH7 or analog input AN19 |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply (5 V nominal) |
| Pin 11 | AVSS — Analog ground |
| Pin 12 | AVDD — Analog supply (5 V nominal) |
| Pin 13 | RA0/AN0 — Digital I/O RA0 or analog input AN0 |
| Pin 14 | RA1/AN1 — Digital I/O RA1 or analog input AN1 |
| Pin 15 | RA2/AN2 — Digital I/O RA2 or analog input AN2 |
| Pin 16 | RA3/AN3 — Digital I/O RA3 or analog input AN3 |
| Pin 17 | RA4/AN4 — Digital I/O RA4 or analog input AN4 |
| Pin 18 | RA5/AN5 — Digital I/O RA5 or analog input AN5 |
| Pin 19 | RA6 — Digital I/O RA6 |
| Pin 20 | RA7 — Digital I/O RA7 |
| Pin 21 | VSS — Ground reference |
| Pin 22 | VDD — Positive supply (5 V nominal) |
| Pin 23 | RB0/INT0 — Digital I/O RB0 or external interrupt 0 |
| Pin 24 | RB1/INT1 — Digital I/O RB1 or external interrupt 1 |
| Pin 25 | RB2/INT2 — Digital I/O RB2 or external interrupt 2 |
| Pin 26 | RB3/INT3 — Digital I/O RB3 or external interrupt 3 |
| Pin 27 | RB4 — Digital I/O RB4 |
| Pin 28 | RB5 — Digital I/O RB5 |
| Pin 29 | RB6/PGC — Digital I/O RB6 or ICSP clock |
| Pin 30 | RB7/PGD — Digital I/O RB7 or ICSP data |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply (5 V nominal) |
| Pin 33 | RC0 — Digital I/O RC0 |
| Pin 34 | RC1 — Digital I/O RC1 |
| Pin 35 | RC2 — Digital I/O RC2 |
| Pin 36 | RC3 — Digital I/O RC3 |
| Pin 37 | RC4 — Digital I/O RC4 |
| Pin 38 | RC5 — Digital I/O RC5 |
| Pin 39 | RC6/TX1 — Digital I/O RC6 or EUSART1 TX |
| Pin 40 | RC7/RX1 — Digital I/O RC7 or EUSART1 RX |
| Pin 41 | VSS — Ground reference |
| Pin 42 | VDD — Positive supply (5 V nominal) |
| Pin 43 | RD0 — Digital I/O RD0 |
| Pin 44 | RD1 — Digital I/O RD1 |
| Pin 45 | RD2 — Digital I/O RD2 |
| Pin 46 | RD3 — Digital I/O RD3 |
| Pin 47 | RD4 — Digital I/O RD4 |
| Pin 48 | RD5 — Digital I/O RD5 |
| Pin 49 | RD6 — Digital I/O RD6 |
| Pin 50 | RD7 — Digital I/O RD7 |
| Pin 51 | VSS — Ground reference |
| Pin 52 | VDD — Positive supply (5 V nominal) |
| Pin 53 | RE0/RD — Digital I/O RE0 or external memory bus read strobe |
| Pin 54 | RE1/WR — Digital I/O RE1 or external memory bus write strobe |
| Pin 55 | RE2/CS — Digital I/O RE2 or external memory bus chip select |
| Pin 56 | RE3 — Digital I/O RE3 |
| Pin 57 | RE4 — Digital I/O RE4 |
| Pin 58 | RE5 — Digital I/O RE5 |
| Pin 59 | RE6 — Digital I/O RE6 |
| Pin 60 | RE7 — Digital I/O RE7 |
| Pin 61 | VSS — Ground reference |
| Pin 62 | VDD — Positive supply (5 V nominal) |
| Pin 63 | RF0/AN5 — Digital I/O RF0 or analog input AN5 (shared mapping per family) |
| Pin 64 | RF1/AN6 — Digital I/O RF1 or analog input AN6 |
| Pin 65 | RF2/AN7 — Digital I/O RF2 or analog input AN7 |
| Pin 66 | RF3/AN8 — Digital I/O RF3 or analog input AN8 |
| Pin 67 | RF4/AN9 — Digital I/O RF4 or analog input AN9 |
| Pin 68 | RF5/AN10 — Digital I/O RF5 or analog input AN10 |
| Pin 69 | RF6/AN11 — Digital I/O RF6 or analog input AN11 |
| Pin 70 | RF7 — Digital I/O RF7 |
| Pin 71 | VSS — Ground reference |
| Pin 72 | VDD — Positive supply (5 V nominal) |
| Pin 73 | RG0 — Digital I/O RG0 |
| Pin 74 | RG1 — Digital I/O RG1 |
| Pin 75 | RG2 — Digital I/O RG2 |
| Pin 76 | RG3 — Digital I/O RG3 |
| Pin 77 | RG4 — Digital I/O RG4 |
| Pin 78 | MCLR — Master clear reset (active low) |
| Pin 79 | OSC1/CLKI — Crystal oscillator input or external clock input |
| Pin 80 | OSC2/CLKO — Crystal oscillator output or clock output |
Typical Applications
PIC18F8628T-I/PT is suitable for 6 applications: Industrial Control Panels, Automotive Body and LIN-Bus Nodes, Large-Format HMI and Display Boards, Home Appliance Controllers, Instrumentation and Data-Acquisition Front-Ends, Point-of-Sale Terminals and Printers.
Industrial Control Panels
The PIC18F8628T-I/PT is well suited for industrial control panels that aggregate multiple sensor inputs and drive HMI displays. Its 12-bit ADC resolves analog signals from pressure transducers, temperature probes, and current shunts with 1.6 mV LSB at 5 V VREF, while the 4 KB RAM buffers GUI screen data and command queues. With 2x MSSP plus 2x LIN-capable EUSART, the MCU concurrently interfaces to SPI displays, I2C EEPROM, a LIN keypad node, and an RS-485 mainboard link - no external bus multiplexer required.
Recommended
Automotive Body and LIN-Bus Nodes
In automotive body-control modules and LIN sub-nodes, the PIC18F8628T-I/PT's two LIN-capable EUSARTs manage master/slave LIN 1.x/2.x communication without external transceivers beyond the LIN phy. The 70+ I/O lines directly drive window lifters, mirror motors, LED matrix indicators, and switch matrices, while the 96 KB Flash accommodates AUTOSAR-style application layers and bootloader slots. The nanoWatt power-management set supports CAN/LIN wake-up from sleep at <5 uA, critical for quiescent-current budgets under 100 uA.
Recommended
Large-Format HMI and Display Boards
Graphical HMI boards with TFT-LCD panels and capacitive touch benefit from the PIC18F8628T-I/PT's combination of high pin count, large Flash, and dual MSSP channels. One MSSP drives the SPI TFT controller at up to 10 MHz, the second MSSP polls an I2C touch controller, while the dual EUSARTs handle RS-232 service-port and RS-485 PLC backhaul in parallel. The 1 KB data EEPROM stores non-volatile display calibration and runtime counters, and the 4 KB RAM holds frame buffers for menu graphics without external SRAM.
Recommended
Home Appliance Controllers
Washing machines, dishwashers, and induction cooktops rely on the PIC18F8628T-I/PT for its mix of connectivity and motor-control-friendly timers. The MSSP channels talk to LED-segment or character-LCD front-panel modules; the EUSARTs communicate with inverter boards, sensor hubs, and Wi-Fi modules; and the 12-bit ADC reads NTC temperature sensors, zero-cross detectors, and current-sensing transformers. The 96 KB Flash is more than enough for state-machine firmware plus a UI library, and nanoWatt idle cuts standby power to meet energy-rating rules.
Recommended
Instrumentation and Data-Acquisition Front-Ends
Bench-top instruments and modular data-acquisition front-ends leverage the PIC18F8628T-I/PT's 12-bit ADC, large memory, and multiple serial ports for sensor aggregation. The dual EUSARTs route SCPI command traffic to a host PC while passing measurement bursts to a downstream logger; the MSSPs daisy-chain SPI ADCs and DACs for self-calibration loops. The 1 KB EEPROM stores per-channel calibration constants, while the 96 KB Flash fits embedded calibration routines and digital-filter libraries for transducer linearization.
Recommended
Point-of-Sale Terminals and Printers
POS terminals and receipt printers use the PIC18F8628T-I/PT to manage keypad scanning, customer-facing displays, mag-stripe or NFC readers, and thermal-printer head control. The 70+ I/O lines directly multiplex the keypad matrix, LCD backlight PWM, and thermal-printer stepper motor phases without external logic. One MSSP drives the NFC controller over SPI; one EUSART connects to the LAN-isolation board; and the 4 KB RAM buffers transaction records before forwarding to the secure element via the second MSSP.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F8628T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F8628-I/PT | PIC18LF8628T-I/PT | PIC18F8525T-I/PT | PIC18F8520T-I/PT | PIC18F8627T-E/PT | PIC18F8722T-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (12x12 mm) | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same |
| Program Flash | 96 KB | 96 KB | 96 KB | 48 KB (-50%) | 32 KB (-67%) | 96 KB | 128 KB (+33%) |
| Data RAM | 4 KB | 4 KB | 4 KB | 3.8 KB | 2 KB | 4 KB | 4 KB |
| Data EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Voltage | 4.2 V to 5.5 V (F series) | 4.2 V to 5.5 V | 2.0 V to 3.6 V (LF series) | 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 |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C |
| Serial Ports | 2x MSSP (I2C/SPI), 2x EUSART (LIN) | 2x MSSP + 2x EUSART | 2x MSSP + 2x EUSART | 2x MSSP + 2x EUSART (subset of pins) | 2x MSSP + 2x EUSART | 2x MSSP + 2x EUSART | 2x MSSP + 2x EUSART |
Key Differentiators
- Higher Flash density at same pin count (vs PIC18F8525T-I/PT)
- Industrial temperature grade for embedded designs (vs PIC18F8627T-E/PT)
- 5 V native operation (vs 3.3 V LF variant) (vs PIC18LF8628T-I/PT)
Design Notes
Estimated: At Vdd = 5 V, 40 MHz active current is approximately 16 mA (typical) per family data; total board-level decoupling must include one 100 nF ceramic per VDD/VSS pin pair plus a bulk 10 uF tantalum near the MCU. Place the 100 nF caps within 3 mm of each supply pin to suppress switching transients from the EUSART and MSSP peripherals. The MCLR pin requires its own 10 kohm pull-up and a 100 nF decoupling cap to ground for stable reset behavior.
The 80-pin TQFP (12x12 mm, 0.5 mm pitch) demands a 4-layer PCB with continuous ground plane beneath the package to provide thermal dissipation and EMI shielding. All VDD/VSS pins must be stitched to inner planes with 0.3 mm vias placed within 1 mm of each pad. Route the 40 MHz crystal traces (OSC1/OSC2) as short, matched-length pairs under 10 mm, and guard them with a ground ring on both sides to prevent radiated-clock injection into adjacent analog inputs.
Do not exceed the absolute maximum Vdd of 7.5 V on any F-series pin; even brief transients from inductive loads can latch-up the device. The ICSP pins (RB6/PGC and RB7/PGD) must remain accessible in production - do not strap them permanently to VDD or GND, as this disables in-field firmware updates. For LIN applications, configure the EUSART baud-rate generator for 16x oversampling at the chosen baud; failure to do so produces framing errors at high bus loads.
Compliance Information
RoHS and lead-free per Microchip product page. The -I (industrial) temperature grade is not AEC-Q100 qualified; for AEC-Q100 automotive applications, choose the PIC18F8627T-E/PT extended-grade variant.
