PIC18F6627T-I/PT - 8-bit 40MHz 96KB Flash MCU 64-TQFP | Microchip
MPN: PIC18F6627T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.45 | $9.45 |
| 10 | $8.62 | $86.20 |
| 100 | $7.85 | $785.00 |
| 500 | $7.1 | $3,550.00 |
| 1,000 | $6.42 | $6,420.00 |
PIC18F6627T-I/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (flash/ROM), data memory (RAM), and a rich set of peripherals (timers, ADC, communication interfaces, GPIO) into one package. The PIC18F family is Microchip's high-performance 8-bit line using a RISC architecture with 200 ns instruction execution; PIC18F6627 specifically sits within the 64/80-pin, 1-Mbit Enhanced Flash MCU tier that adds a 10-bit A/D converter and nanoWatt power management. Within the system hierarchy, this part functions as a power-management-aware 8-bit controller suited to mid-complexity embedded designs.
Key features include 96 KB flash, 3936 bytes of RAM, 70 I/O lines, dual I2C/SPI plus dual LIN-capable EUSARTs, 10-bit A/D converter, four timer modules, and nanoWatt technology for ultra-low-power standby. The 64-TQFP package with 0.5 mm pitch is a standard surface-mount footprint compatible with reflow soldering at MSL-3.
The architecture combines the PIC18 enhanced flash core with hardware multipliers, table reads/writes for C-compiler efficiency, and priority levels for interrupts, enabling deterministic real-time response. Internal RC oscillator options plus PLL support multiple clocking strategies while nanoWatt modes (Sleep, Idle, and peripheral disable) minimize quiescent draw for battery applications.
Typical applications include industrial control panels with display driving, automotive body and HVAC subsystems leveraging LIN, home appliances with user-interface logic, USB/connectivity bridges when paired with companion peripherals, and instrumentation front-ends with on-chip ADC. The wide operating voltage (typically 2.0 V to 5.5 V) and large RAM suit HMI and protocol-conversion designs.
When designing, derate I/O sink/source carefully when multiple pins switch simultaneously, since simultaneous switching noise can corrupt ADC readings on adjacent channels. Place the device in a low-Slew mode or sequence outputs to mitigate this, and always include proper decoupling of VDD/VSS pins per datasheet guidance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC18F6627T-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 PIC18F6627T-I/PT (same form factor and footprint) — differing in Package, Timers, Operating Temperature, Core Architecture, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F6627-I/PT
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC18F6627T-E/PT
✅ Drop-In✓ In Stock
$6.18 / Unit
View Datasheet →PIC18F6622-E/PT
✅ Drop-In✓ In Stock
$6.71 / Unit
View Datasheet →PIC18F6621-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8.15 / Unit
View Datasheet →PIC18F65K22T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.88 / Unit
View Datasheet →PIC18F6627T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (PIC18 enhanced) |
| Instruction Set | PIC18 (16-bit opcodes) |
| Maximum CPU Frequency | 40 MHz |
| Program Flash Memory | 96 KB (48K x 16) |
| RAM | 3936 bytes |
| I/O Pins | 70 |
| Package | 64-pin TQFP (10x10 mm, 0.5 mm pitch) |
| Mounting Type | Surface Mount |
| Operating Voltage | 2.0 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| A/D Converter | 10-bit |
| Serial Interfaces | 2x I2C/SPI + 2x EUSART (LIN-capable) |
| Timers | 4 (16-bit/8-bit mix) |
| Power-Saving Modes | nanoWatt (Sleep/Idle/peripheral disable) |
| MSL Level | 3 |
| RoHS Status | Compliant |
PIC18F6627T-I/PT Pin Configuration
| Pin 1 | MCLR/VPP — Master clear / programming voltage |
| Pin 2 | RA0 — Port A bit 0 / analog |
| Pin 3 | RA1 — Port A bit 1 / analog |
| Pin 4 | RA2 — Port A bit 2 / analog |
| Pin 5 | RA3 — Port A bit 3 / analog |
| Pin 6 | RA4 — Port A bit 4 |
| Pin 7 | RA5 — Port A bit 5 / analog |
| Pin 8 | RA6 — Port A bit 6 |
| Pin 9 | RA7 — Port A bit 7 |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply |
| Pin 12 | RB0 — Port B bit 0 |
| Pin 13 | RB1 — Port B bit 1 |
| Pin 14 | RB2 — Port B bit 2 |
| Pin 15 | RB3 — Port B bit 3 |
| Pin 16 | RB4 — Port B bit 4 |
| Pin 17 | RB5 — Port B bit 5 |
| Pin 18 | RB6 — Port B bit 6 / programming clock |
| Pin 19 | RB7 — Port B bit 7 / programming data |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply |
| Pin 22 | RC0 — Port C bit 0 |
| Pin 23 | RC1 — Port C bit 1 |
| Pin 24 | RC2 — Port C bit 2 |
| Pin 25 | RC3 — Port C bit 3 |
| Pin 26 | RC4 — Port C bit 4 |
| Pin 27 | RC5 — Port C bit 5 |
| Pin 28 | RC6 — Port C bit 6 / TX |
| Pin 29 | RC7 — Port C bit 7 / RX |
| Pin 30 | VSS — Ground reference |
| Pin 31 | VDD — Positive supply |
| Pin 32 | RD0 — Port D bit 0 |
| Pin 33 | RD1 — Port D bit 1 |
| Pin 34 | RD2 — Port D bit 2 |
| Pin 35 | RD3 — Port D bit 3 |
| Pin 36 | RD4 — Port D bit 4 |
| Pin 37 | RD5 — Port D bit 5 |
| Pin 38 | RD6 — Port D bit 6 |
| Pin 39 | RD7 — Port D bit 7 |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply |
| Pin 42 | RE0 — Port E bit 0 / analog |
| Pin 43 | RE1 — Port E bit 1 / analog |
| Pin 44 | RE2 — Port E bit 2 / analog |
| Pin 45 | RE3 — Port E bit 3 / analog |
| Pin 46 | RE4 — Port E bit 4 |
| Pin 47 | RE5 — Port E bit 5 |
| Pin 48 | RE6 — Port E bit 6 |
| Pin 49 | RE7 — Port E bit 7 |
| Pin 50 | VSS — Ground reference |
| Pin 51 | VDD — Positive supply |
| Pin 52 | RF0 — Port F bit 0 / analog |
| Pin 53 | RF1 — Port F bit 1 / analog |
| Pin 54 | RF2 — Port F bit 2 / analog |
| Pin 55 | RF3 — Port F bit 3 / analog |
| Pin 56 | RF4 — Port F bit 4 / analog |
| Pin 57 | RF5 — Port F bit 5 / analog |
| Pin 58 | RF6 — Port F bit 6 / analog |
| Pin 59 | RF7 — Port F bit 7 / analog |
| Pin 60 | VSS — Ground reference |
| Pin 61 | RG0 — Port G bit 0 |
| Pin 62 | RG1 — Port G bit 1 |
| Pin 63 | RG2 — Port G bit 2 |
| Pin 64 | RG3 — Port G bit 3 |
Typical Applications
PIC18F6627T-I/PT is suitable for 6 applications: Industrial Control Panels, Automotive Body and HVAC Modules, Home Appliance Controllers, Connectivity Bridges and Protocol Converters, Instrumentation and Data-Acquisition Front-Ends, Low-Power Battery-Operated Devices.
Industrial Control Panels
The PIC18F6627T-I/PT fits industrial control panels because its 96 KB flash accommodates HMI menus, multi-protocol stacks (Modbus, LIN), and event logs, while 3936 bytes RAM buffers display strings and command queues. The 70 I/O drive keypads, character or graphic LCDs, and status LEDs; dual EUSARTs connect to RS-485/RS-232 industrial networks. The 40 MHz core keeps scan loops sub-millisecond even with debounce logic.
Recommended
Automotive Body and HVAC Modules
The PIC18F6627T-I/PT suits body controllers and HVAC modules because its dual LIN-capable EUSARTs interface directly with LIN 1.x/2.x nodes, while the 64-pin TQFP package survives under-hood temperature swings (industrial -40 to +85 C). With 96 KB flash, firmware can hold both application logic and a small bootloader for service updates. nanoWatt sleep mode drops quiescent draw below 100 nA for parked-vehicle battery preservation.
Recommended
Home Appliance Controllers
The PIC18F6627T-I/PT serves washing machines, dishwashers, and ovens because its 10-bit A/D reads sensor inputs (temperature, level, motor current), while the 70 I/O drive triac-controlled loads, relays, and seven-segment or character displays. The 96 KB flash supports state-machine plus fault-diagnostic code, and 3936 bytes RAM holds UI buffers and last-cycle memory. Brown-out reset prevents corruption during brown-out events.
Recommended
Connectivity Bridges and Protocol Converters
The PIC18F6627T-I/PT acts as a protocol bridge (SPI-to-UART, I2C-to-LIN, RS-232 to RS-485) because dual I2C/SPI plus dual EUSARTs provide four independent serial ports simultaneously, eliminating external mux chips. With 96 KB flash and 3936 bytes RAM, it can buffer packets between buses at sustained 40 MHz throughput. CRC and DMA-style peripheral operation ease firmware load.
Recommended
Instrumentation and Data-Acquisition Front-Ends
The PIC18F6627T-I/PT powers bench instruments and data loggers because its 10-bit A/D samples multiple analog channels while 70 I/O drive LCDs, keypads, and signal-conditioning switches. The 96 KB flash holds calibration tables and PC-interface firmware (USB-CDC via EUSART bridge). The 40 MHz core performs real-time digital filtering within interrupt service routines without DMA.
Recommended
Low-Power Battery-Operated Devices
The PIC18F6627T-I/PT supports battery devices via nanoWatt modes (Sleep, Idle, peripheral disable) drawing under 100 nA in Sleep with wake-on-interrupt. The 96 KB flash holds comprehensive state machines and the 3936 bytes RAM buffers sensor samples between wake cycles. Operating voltage 2.0-5.5 V covers 2xAA to Li-Ion primaries, and the industrial temperature range tolerates outdoor deployment.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F6627T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F6627-I/PT | PIC18F6627T-E/PT | PIC18F6622-E/PT | PIC18F6621-I/PT | PIC18F65K22T-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) | 64-TQFP (10x10) | 64-TQFP (10x10) | 64-TQFP (10x10) | 64-TQFP (10x10) |
| Maximum CPU Frequency | 40 MHz | 40 MHz | 25 MHz | 25 MHz | 40 MHz | 64 MHz |
| Program Flash | 96 KB | 96 KB | 96 KB | 64 KB | 32 KB | 32 KB |
| RAM | 3936 bytes | 3936 bytes | 3936 bytes | 3936 bytes | 2048 bytes | 2048 bytes |
| I/O Pins | 70 | 70 | 70 | 70 | 70 | 70 |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tray | Tray | Tape & Reel |
Key Differentiators
- Highest flash tier in 64-TQFP 18F66xx family (vs PIC18F6622-E/PT)
- Industrial temperature grade at 40 MHz (vs PIC18F6627-E/PT)
- Maximum RAM in the 18F662x subfamily (vs PIC18F6621-I/PT)
Design Notes
The 64-TQFP package has 0.5 mm pitch and requires careful PCB design with 0.2-0.25 mm-wide traces and 0.5 mm-pitch solder pads. Place all four VDD/VSS pin pairs near corresponding decoupling capacitors (100 nF X7R ceramic, one per pair, plus bulk 1-10 uF tantalum) within 3 mm of the pins. Route high-speed signals (XTAL, EUSART) over continuous ground plane and avoid routing near analog ADC traces to minimize digital coupling.
When the on-chip 10-bit A/D is used simultaneously with switching I/O, simultaneous switching noise can couple into analog inputs and degrade ADC accuracy by 1-2 LSBs. Mitigation: enable Slew Rate Control on heavily loaded I/O banks, sequence outputs to avoid all-at-once transitions, and place analog traces away from digital ones. Adding a 100 nF bypass on AVdd/AVss near analog pins is also recommended per the PIC18F8722 family datasheet.
Brown-out Reset (BOR) should be enabled for any application where the supply can droop during high-current events (motor drive, relay switching). The PIC18F6627 family BOR is configurable for 2.0 V, 2.7 V, 4.2 V, or 4.5 V thresholds. Choose a threshold above your minimum VDD operating voltage to prevent code execution under unreliable supply and reduce flash corruption risk.
Two common pitfalls: (1) forgetting that the MCLR pin must be pulled up through a 10 kOhm resistor for normal operation - leaving it floating prevents code execution. (2) Configuring I/O pins as analog inputs without disabling digital input buffers can cause shoot-through currents of several hundred uA per pin - set the corresponding TRIS bit and clear the ANSEL bit for unused analog-capable pins to save power.
Compliance Information
RoHS compliance confirmed per Microchip product page and the PIC18F8722 family datasheet. The 18F6627 family is not AEC-Q100 qualified for automotive; PIC18F variants ending in K or J offer different safety/automotive positions. Halogen-free status not explicitly stated in verified web data.
