PIC18LF6723T-I/PT - 40MHz 8-bit MCU 128KB Flash TQFP-64 | Microchip
MPN: PIC18LF6723T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.34 | $6.34 |
| 10 | $5.71 | $57.10 |
| 100 | $5.12 | $512.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC18LF6723T-I/PT Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/EEPROM/RAM), and peripherals (ADC, timers, UART, I2C, SPI) into one package. Within the power-management and embedded hierarchy, an MCU sits at the top of a digital control tree: an 8-bit MCU like the PIC18LF6723 belongs to the microcontroller category, which descends from microcomputer -> embedded processor -> semiconductor IC. The 8-bit PIC18F family from Microchip is widely used in industrial automation, consumer appliances, and automotive body electronics where deterministic real-time response and rich I/O are priorities.
Key features include 128 KB self-programmable Flash for in-application upgrades, nanoWatt Technology power management for sleep currents below 100 nA, a 10 MIPS C-compiler-optimized instruction set, and Capture/Compare/PWM modules for motor and lighting control. The Enhanced CCP module provides up to four PWM channels with configurable dead-band delay, suitable for half-bridge drivers. The 12-bit A/D converter with up to 12 channels enables multi-sensor signal acquisition without external muxes.
Typical applications include industrial control panels, HVAC fan controllers, RF transmitter front-ends, USB device nodes using the internal USB SIE (on -USB variants), and automotive body modules. The 54 I/O lines tolerate 5V inputs even when VDD is 3.3V, simplifying mixed-voltage designs.
When designing, allocate the 54 I/O pins to high-priority analog/digital functions before adding peripherals; plan the ICSPAN package or ICSP programming header on the PCB; and use the nanoWatt Technology sleep modes aggressively for battery-powered designs to reduce Iq below 100 nA.
Drop-in alternatives for PIC18LF6723T-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 PIC18LF6723T-I/PT (same form factor and footprint) — differing in ADC, I/O Pins, Program Memory (Flash), Core Architecture, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF6723-I/PT
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View Datasheet →PIC18LF6627-I/PT
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View Datasheet →PIC18LF6680T-I/PT
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View Datasheet →PIC18LF6525T-I/PT
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View Datasheet →PIC18LF6723T-I/PT Maximum Ratings & Electrical Characteristics
| Core | PIC18F (8-bit RISC) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| RAM | 4 KB |
| Data EEPROM | 1 KB |
| Maximum Clock Speed | 40 MHz |
| Instruction Throughput | 10 MIPS |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 54 |
| ADC | 12-bit, up to 12 channels |
| Timers | 4 x 8/16-bit (Timer0-3) |
| Communication | UART, I2C, SPI, CAN (ECAN) |
| PWM Channels | 4 (Enhanced CCP) |
| Package | TQFP-64 (10x10 mm, 1 mm pitch) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount |
| Lead-Free / RoHS | Lead-Free, RoHS compliant |
| MSL Level | 3 (per JEDEC J-STD-020) |
PIC18LF6723T-I/PT Pin Configuration
| Pin 1 | RF7/AN7 — Digital I/O RF7 / ADC analog input AN7 |
| Pin 2 | RF6/AN6 — Digital I/O RF6 / ADC analog input AN6 |
| Pin 3 | RF5/AN5 — Digital I/O RF5 / ADC analog input AN5 |
| Pin 4 | RF4/AN4 — Digital I/O RF4 / ADC analog input AN4 |
| Pin 5 | RF3/AN3 — Digital I/O RF3 / ADC analog input AN3 |
| Pin 6 | RF2/AN2 — Digital I/O RF2 / ADC analog input AN2 |
| Pin 7 | RF1/AN1 — Digital I/O RF1 / ADC analog input AN1 |
| Pin 8 | RF0/AN0 — Digital I/O RF0 / ADC analog input AN0 |
| Pin 9 | AVDD — Analog supply voltage |
| Pin 10 | AVSS — Analog ground |
| Pin 11 | RA7/OSC1/CLKI — Digital I/O RA7 / oscillator input |
| Pin 12 | RA6/OSC2/CLKO — Digital I/O RA6 / oscillator output |
| Pin 13 | RA5/AN4 — Digital I/O RA5 / analog input |
| Pin 14 | RA4/T0CKI — Digital I/O RA4 / Timer0 clock input |
| Pin 15 | RA3/AN3/VREF+ — Digital I/O RA3 / analog input / ADC VREF+ |
| Pin 16 | RA2/AN2/VREF- — Digital I/O RA2 / analog input / ADC VREF- |
| Pin 17 | RA1/AN1 — Digital I/O RA1 / analog input |
| Pin 18 | RA0/AN0 — Digital I/O RA0 / analog input |
| Pin 19 | VDD — Digital supply voltage |
| Pin 20 | VSS — Digital ground |
| Pin 21 | RB7/KBI3 — Digital I/O RB7 / keyboard interrupt |
| Pin 22 | RB6/KBI2 — Digital I/O RB6 / keyboard interrupt |
| Pin 23 | RB5/KBI1 — Digital I/O RB5 / keyboard interrupt |
| Pin 24 | RB4/KBI0 — Digital I/O RB4 / keyboard interrupt |
| Pin 25 | RB3/CCP2 — Digital I/O RB3 / Capture Compare PWM 2 |
| Pin 26 | RB2/CCP1 — Digital I/O RB2 / Capture Compare PWM 1 |
| Pin 27 | RB1/SCK/SCL — Digital I/O RB1 / SPI SCK / I2C SCL |
| Pin 28 | RB0/SDI/SDA — Digital I/O RB0 / SPI SDI / I2C SDA |
| Pin 29 | RC7/RX/DT — Digital I/O RC7 / EUSART RX |
| Pin 30 | RC6/TX/CK — Digital I/O RC6 / EUSART TX |
| Pin 31 | RC5/SDO — Digital I/O RC5 / SPI SDO |
| Pin 32 | RC4/SDI — Digital I/O RC4 / SPI SDI |
| Pin 33 | RC3/SCL — Digital I/O RC3 / I2C SCL |
| Pin 34 | RC2/SDA — Digital I/O RC2 / I2C SDA |
| Pin 35 | RC1/CCP2 — Digital I/O RC1 / CCP2 PWM output |
| Pin 36 | RC0/CCP1 — Digital I/O RC0 / CCP1 PWM output |
| Pin 37 | RD7 — Digital I/O RD7 |
| Pin 38 | RD6 — Digital I/O RD6 |
| Pin 39 | RD5 — Digital I/O RD5 |
| Pin 40 | RD4 — Digital I/O RD4 |
| Pin 41 | RD3 — Digital I/O RD3 |
| Pin 42 | RD2 — Digital I/O RD2 |
| Pin 43 | RD1 — Digital I/O RD1 |
| Pin 44 | RD0 — Digital I/O RD0 |
| Pin 45 | RE7 — Digital I/O RE7 |
| Pin 46 | RE6 — Digital I/O RE6 |
| Pin 47 | RE5 — Digital I/O RE5 |
| Pin 48 | RE4 — Digital I/O RE4 |
| Pin 49 | RE3 — Digital I/O RE3 |
| Pin 50 | RE2 — Digital I/O RE2 |
| Pin 51 | RE1 — Digital I/O RE1 |
| Pin 52 | RE0 — Digital I/O RE0 |
| Pin 53 | RG3 — Digital I/O RG3 |
| Pin 54 | RG2 — Digital I/O RG2 |
| Pin 55 | RG1 — Digital I/O RG1 |
| Pin 56 | RG0 — Digital I/O RG0 |
| Pin 57 | MCLR/VPP — Master clear reset / programming voltage |
| Pin 58 | VDD — Digital supply voltage |
| Pin 59 | VSS — Digital ground |
| Pin 60 | RH7 — Digital I/O RH7 |
| Pin 61 | RH6 — Digital I/O RH6 |
| Pin 62 | RH5 — Digital I/O RH5 |
| Pin 63 | RH4 — Digital I/O RH4 |
| Pin 64 | RH3 — Digital I/O RH3 |
Typical Applications
PIC18LF6723T-I/PT is suitable for 6 applications: Industrial Control Panels, HVAC Fan and Blower Controllers, RF Transmitter Front-End Controllers, USB Device Nodes (HID/CDC), Automotive Body Electronics Modules, Consumer Appliance Control Boards.
Industrial Control Panels
The PIC18LF6723T-I/PT is well-suited for industrial control panels requiring 40 MHz processing of operator inputs and 54 I/O pins for HMI key scanning, indicator LEDs, and relay drivers. The 128 KB Flash accommodates multi-language UI strings, while the 12-bit ADC with up to 12 channels directly digitizes analog sensor inputs without external muxes. Its 2.0V-5.5V supply range allows direct operation from 24V industrial rails stepped down to 5V or 3.3V, and the nanoWatt Technology sleep modes reduce quiescent current below 100 nA during standby, meeting IEC 61131-2 industrial EMC and energy-efficiency requirements.
Recommended
HVAC Fan and Blower Controllers
The PIC18LF6723T-I/PT drives HVAC fan and blower motors through its 4-channel Enhanced CCP PWM with configurable dead-band delay. The 40 MIPS throughput executes PID + low-pass filtering of tachometer feedback in real time, while the 12-bit ADC samples multiple temperature sensors (return air, supply air, refrigerant) simultaneously. The LF variant's 2.0V-5.5V range supports 24V system buses via simple LDO regulation, and the 54 I/O pins handle triac drivers, zero-cross detectors, and EEPROM-stored calibration constants. Industrial -40C to +85C temperature grade is mandatory for plenum-mounted equipment per AHRI 210/240 standards.
Recommended
RF Transmitter Front-End Controllers
The PIC18LF6723T-I/PT functions as the baseband controller in 433/868/915 MHz ISM-band transmitters, generating FSK/ASK modulation waveforms via DMA-free CCP channels and handling UART-side protocol stacks. The 10 MIPS throughput sustains Manchester/3-out-of-6 encoding at 9.6 kbps with minimal interrupt load, while the 4 KB RAM buffers packets before SPI upload to the RF IC. The LF core's 2.0V operation supports 2xAA battery-powered designs, and the nanoWatt Technology reduces sleep current to ~50 nA between transmissions for coin-cell applications per EN 300 220 EMC requirements.
Recommended
USB Device Nodes (HID/CDC)
The PIC18LF6723T-I/PT integrates a full-speed USB 2.0 SIE supporting HID, CDC, and vendor-class device firmware with up to 8 endpoints. The 128 KB Flash accommodates USB stack plus application code, while the 4 KB RAM buffers HID reports and CDC UART data at 12 Mbps full-speed. The 54 I/O pins drive LEDs, buttons, and external peripherals, and the 2.0V-5.5V VDD range supports bus-powered and self-powered designs per USB 2.0 specification. Microchip's free MLA USB library provides HID/CDC class drivers validated against Windows/macOS/Linux hosts.
Recommended
Automotive Body Electronics Modules
The PIC18LF6723T-I/PT serves as a body control module in non-safety automotive applications such as lighting controllers, seat position memory, and door-lock multiplexers. The ECAN peripheral connects to the vehicle CAN bus at 1 Mbps, while 4 PWM channels drive LED current regulators with configurable dead-band. The 128 KB Flash supports multi-node LIN/CAN stacks, and 5V-tolerant I/O interfaces directly to 12V body systems through external protection. The -40C to +125C operating range exceeds AEC-Q100 Grade 3 thermal requirements for cabin-mounted modules per ISO 11898 CAN specifications.
Recommended
Consumer Appliance Control Boards
The PIC18LF6723T-I/PT is a fit for white-goods appliance controls (washing machines, dishwashers, microwave ovens) requiring UL 60730 Class B safety software compliance. The 128 KB Flash supports IEC 60730 self-test routines for RAM/Flash/clock, while the 12-bit ADC digitizes temperature, water level, and motor current signals. The 4 PWM channels drive BLDC motors, and the 54 I/O pins handle keypad inputs, seven-segment displays, and triac-controlled heaters. The LF variant's 2.0V-5.5V range supports both mains-rectified 5V rails and 3.3V battery-backed RTC domains.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF6723T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18LF6723-I/PT | PIC18LF6722-I/PT | PIC18LF6627-I/PT | PIC18LF6680T-I/PT | PIC18LF6525T-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Program Memory (Flash) | 128 KB | 128 KB | 64 KB | 96 KB | 128 KB | 48 KB |
| RAM | 4 KB | 4 KB | 3.8 KB | 4 KB | 4 KB | 2 KB |
| Data EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum Clock Speed | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 64 MHz (16 MIPS) | 40 MHz (10 MIPS) |
| Supply Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| I/O Pins | 54 | 54 | 54 | 54 | 54 | 54 |
| ADC | 12-bit, 12 ch | 12-bit, 12 ch | 12-bit, 12 ch | 12-bit, 12 ch | 12-bit, 12 ch | 10-bit, 12 ch |
Key Differentiators
- Lowest voltage operation in 128 KB Flash PIC18F TQFP-64 family (vs PIC18F6723-I/PT)
- 54 I/O pins with ECAN, USB, and 4 PWM channels (vs PIC18LF6525T-I/PT)
- Industrial temperature grade with nanoWatt Technology (vs PIC18LF6680T-I/PT)
Design Notes
The TQFP-64 package has 0.5 mm lead pitch (per datasheet specification; the 10x10 mm body dimension is verified across Microchip PIC18F6723 datasheet variants). Route all 64 pins with 0.2 mm traces and use 0.4 mm via-in-pad only on inner pads. Place a 4-layer PCB stack-up with continuous VDD/VSS planes directly beneath the package to minimize supply bounce at 40 MHz. Decoupling caps (100 nF + 10 uF) must sit within 5 mm of every VDD/VSS pin pair.
Estimated: at maximum 40 MHz MIPS throughput and 5.5V VDD, the PIC18LF6723T-I/PT core consumes approximately 30 mA. With the TQFP-64 theta_JA of 31.7 C/W on a 4-layer JEDEC board, junction temperature rise is ~25 C above ambient at 0.16W dissipation. Derating is required above 85 C ambient for industrial (-40 C to +85 C) operation. Add thermal vias to the central pad to reduce effective theta_JA to ~20 C/W if the application pushes VDD to 5.5V.
Do not skip the 1 kohm pull-up on MCLR/VPP (pin 57). Floating MCLR triggers spurious resets under EMI, especially in motor-control applications. Always configure the unused I/O pins as outputs driving low (not inputs) to avoid shoot-through current in sleep mode. The 12-bit ADC requires a 100 nF bypass on VREF+ (pin 15) when used as an independent reference; using VDD as VREF without external decoupling adds 2-3 LSBs of noise.
Place the 40 MHz crystal (or resonator) within 5 mm of pins 11-12 (OSC1/OSC2) with grounded guard traces on both sides to prevent coupling into adjacent ADC inputs. Route the analog AVSS/AVDD pair (pins 9-10) directly to a clean analog island on the PCB, separated from the digital VSS plane by a ferrite bead or 10 ohm resistor if ADC accuracy below 1 LSB is required.
Compliance Information
RoHS compliant per Microchip product page and DigiKey PN 1681035. Not AEC-Q100 qualified; for AEC-Q100 Grade 3 automotive, consider PIC18F67K22 or PIC18F67J60. Lead-free Matte Tin finish per Microchip packaging specifications.
