PIC18F1320T-E/ML - 8-bit 25MHz 8KB Flash MCU 28-QFN | Microchip
MPN: PIC18F1320T-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.1 | $4.10 |
| 10 | $3.74 | $37.40 |
| 100 | $3.3 | $330.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.62 | $2,620.00 |
PIC18F1320T-E/ML Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, peripherals, and I/O on one die. The PIC18F family is positioned in Microchip's mid-range 8-bit portfolio: 8-bit core -> PIC microcontroller -> microcontroller -> embedded processor. PIC18 devices use a RISC architecture with 16-bit instruction words, delivering deterministic interrupt response and low power consumption, making them suitable for both hobbyist and industrial designs.
Key features of the PIC18F1320 include nanoWatt Technology with six power-managed software-controlled modes, allowing standby current as low as 0.1 microamp, and a wide operating voltage range from 2.0 V to 5.5 V. On-chip peripherals include a 10-bit A/D converter with multiple channels, PWM, brown-out detect/reset, low-voltage detect (LVD), power-on reset (POR), and watchdog timer (WDT). Internal oscillator support further reduces external component count.
The device uses Microchip's Enhanced Flash memory cell with high endurance for field re-programmability. The 28-QFN package provides a compact 6 x 6 mm footprint suitable for space-constrained designs while exposing a thermal pad for improved heat dissipation. The "-E" temperature suffix indicates the extended industrial temperature range of -40C to +125C, suitable for harsh environments.
Typical applications include low-power sensor nodes, battery-operated instruments, motor control subsystems with PWM, automotive body electronics (non-safety), industrial control loops, and small-form-factor consumer appliances. The wide Vdd range and internal oscillator make it a good fit for designs that must operate directly from 2- or 3-cell battery stacks or unregulated rails.
When designing with this device, ensure proper decoupling (typically 0.1 uF plus bulk) near the Vdd pins and connect the exposed pad to a grounded copper pour for thermal performance. Configuration bits must be set to select the desired oscillator mode and disable unused peripherals to minimize active current.
This page synthesizes distributor pricing, drop-in alternatives from the same Microchip PIC18 family, and practical design notes that complement the manufacturer datasheet and accelerate your part-selection process.
Drop-in alternatives for PIC18F1320T-E/ML — 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 PIC18F1320T-E/ML (same form factor and footprint) — differing in Core Architecture, Package, ADC, Internal Oscillator, Maximum CPU Frequency.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F1320-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.51 / Unit
View Datasheet →PIC18F1320T-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.4 / Unit
View Datasheet →PIC18F1320T-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F1220-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F1220T-I/ML
✅ Drop-In✓ In Stock
$2.74 / Unit
View Datasheet →PIC18F1320T-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC |
| Family | PIC18F1220/1320 |
| Maximum CPU Frequency | 25 MHz |
| Program Memory (Flash) | 8 KB (4K x 16) |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 16 |
| ADC | 10-bit |
| PWM Channels | Yes (CCP/ECCP) |
| Brown-out Detect / Reset | Yes |
| Low-Voltage Detect (LVD) | Yes |
| Power-On Reset (POR) | Yes |
| Watchdog Timer (WDT) | Yes |
| Internal Oscillator | Yes |
| nanoWatt Technology | Yes (6 power-managed modes) |
| Standby Current | 0.1 uA typical |
| Operating Temperature Range | -40C to +125C (E suffix) |
| Package | 28-QFN (6x6 mm) with exposed thermal pad |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| RoHS Status | Compliant |
PIC18F1320T-E/ML Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pin 3 | RA2/AN2/VREF- — Digital I/O / Analog input / ADC negative reference |
| Pin 4 | RA3/AN3/VREF+ — Digital I/O / Analog input / ADC positive reference |
| Pin 5 | RA4/AN4 — Digital I/O / Analog input channel 4 (open-drain) |
| Pin 6 | RA5/AN5 — Digital I/O / Analog input channel 5 |
| Pin 7 | Vss — Ground |
| Pin 8 | OSC1/CLKI — Crystal/clock input or external clock in |
| Pin 9 | OSC2/CLKO — Crystal output / clock out |
| Pin 10 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / clock input |
| Pin 11 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 |
| Pin 12 | RC2/CCP1/P1A — Digital I/O / CCP1 / PWM output A |
| Pin 13 | RC3 — Digital I/O |
| Pin 14 | RC4 — Digital I/O |
| Pin 15 | RC5 — Digital I/O |
| Pin 16 | RC6 — Digital I/O |
| Pin 17 | RC7 — Digital I/O |
| Pin 18 | Vss — Ground |
| Pin 19 | Vdd — Positive supply voltage |
| Pin 20 | RB0/INT — Digital I/O / External interrupt |
| Pin 21 | RB1 — Digital I/O |
| Pin 22 | RB2 — Digital I/O |
| Pin 23 | RB3 — Digital I/O |
| Pin 24 | RB4 — Digital I/O |
| Pin 25 | RB5 — Digital I/O |
| Pin 26 | RB6/PGC — Digital I/O / ICSP clock |
| Pin 27 | RB7/PGD — Digital I/O / ICSP data |
| Pin 28 | MCLR/Vpp — Master clear reset / programming voltage |
Typical Applications
PIC18F1320T-E/ML is suitable for 7 applications: Battery-Powered Sensor Nodes, Small Motor Control (PWM), Industrial Sensor Conditioning, Automotive Body Electronics (Non-Safety), USB-less HID Consumer Devices, LED Lighting and Signage, Portable Medical Accessories.
Battery-Powered Sensor Nodes
The PIC18F1320T-E/ML is well suited for battery-powered wireless sensor nodes because its nanoWatt Technology delivers standby current of 0.1 microamp and supports six software-controlled power-managed modes. Operating directly from 2.0 V to 5.5 V lets the device run from two or three alkaline cells without a boost regulator, and the 16 I/O pins easily handle a digital sensor, an LED indicator, and a UART link to a low-power RF front end. The 28-QFN 6x6 mm package fits inside small sensor enclosures while leaving room for a coin cell holder. Pair it with an SPI temperature sensor and an XBee or LoRa module for a multi-year-battery-life wireless telemetry node.
Recommended
Small Motor Control (PWM)
The PIC18F1320T-E/ML provides PWM and ECCP peripherals capable of driving DC brushed motors or small three-phase BLDC commutation stages at 25 MHz CPU speed. The 10-bit ADC samples back-EMF or current-sense signals at the same time as the PWM updates, and the 8 KB Flash holds open-loop or sensored commutation tables comfortably. The 28-QFN exposed pad simplifies PCB thermal layout when the MCU switches the FET bridge continuously. The device's wide 2-5.5 V supply range lets it share the motor bus directly with the gate driver. This combination is typical of small fans, pumps, and toy-grade appliances.
Recommended
Industrial Sensor Conditioning
The PIC18F1320T-E/ML handles industrial 4-20 mA loop-powered sensors thanks to its 2.0 V to 5.5 V supply range and 10-bit ADC with multiple input channels. The E-grade extended temperature range of -40C to +125C supports unheated outdoor cabinets and factory floors. With 16 I/O pins and CCP/PWM, the same MCU can digitize a 4-20 mA input, drive an HMI display, and toggle a control relay. The internal oscillator eliminates the need for an external crystal, improving vibration tolerance on equipment like motor mounts. Pair with an op-amp current-sense front end and an SPI display module.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC18F1320T-E/ML is suitable for non-safety automotive body modules such as interior lighting, seat-position memory, and HVAC flap control, where its extended -40C to +125C operating range and PWM peripherals handle environmental and electromagnetic stresses. The 28-QFN package fits inside small junction boxes behind the dashboard, and the 8 KB Flash supports LIN-style communication stacks. Brown-out reset and watchdog timer add robustness against cranking voltage dips down to 6 V on 12 V buses. Designers targeting AEC-Q100 must use the PIC18F1320-I/ML or Q-graded parts; this E-suffix part is industrial grade, not automotive qualified.
Recommended
USB-less HID Consumer Devices
The PIC18F1320T-E/ML drives consumer HID products like custom keyboards, MIDI control surfaces, and remote controls where USB host chips are not required. The 16 I/O pins handle a 4x4 scan matrix with room for indicator LEDs, and the 8 KB Flash stores firmware for key debouncing, HID report generation, and sleep/wake logic. Standby current of 0.1 microamp lets battery-powered devices sleep for years between user interactions. The 28-QFN 6x6 mm package fits inside slim enclosures where a 28-SOIC variant would be too tall.
Recommended
LED Lighting and Signage
The PIC18F1320T-E/ML drives addressable LED strips and dot-matrix signs via PWM and software timing loops. Its CCP/ECCP module generates precise 0-100% duty cycles for warm-white dimming, while its 25 MHz CPU rate keeps WS2812 or APA104 data refresh smooth even on long runs. The 16 I/O pins support multiple parallel LED channels, and the internal oscillator eliminates the crystal footprint on thin sign PCBs. The -40C to +125C industrial grade ensures stable operation in outdoor enclosures and refrigerated cases. The 28-QFN exposed pad sinks heat from internal switching without overheating during PWM duty cycling.
Recommended
Portable Medical Accessories
The PIC18F1320T-E/ML supports portable medical accessories like pulse-oximeter housings, peak flow meters, and pill-dispenser actuators. Its nanoWatt Technology stretches battery life across weeks of intermittent use, and the 10-bit ADC digitizes thermistor or photodiode signals with sufficient resolution for accessory-class accuracy. The 28-QFN 6x6 mm package fits inside handheld enclosures and the wide 2.0 V to 5.5 V supply range allows operation from a single Li-coin cell or two AA cells. Brown-out reset protects against battery-end-of-life conditions. Pair with an SPI LCD and a piezo buzzer for a complete handheld device.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F1320T-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F1320-I/ML | PIC18F1320T-I/ML | PIC18F1220-E/ML | PIC18F1220T-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Program Memory (Flash) | 8 KB (4K x 16) | 8 KB (4K x 16) | 8 KB (4K x 16) | 4 KB (2K x 16) -50% | 4 KB (2K x 16) -50% |
| Maximum CPU Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Operating Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) |
| I/O Pins | 16 | 16 | 16 | 16 | 16 |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| nanoWatt Technology | Yes (0.1 uA standby) | Yes (0.1 uA standby) | Yes (0.1 uA standby) | Yes (0.1 uA standby) | Yes (0.1 uA standby) |
| RoHS Status | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Extended industrial temperature grade (vs PIC18F1320-I/ML)
- Double the Flash of PIC18F1220 family (vs PIC18F1220-E/ML)
- nanoWatt Technology with 0.1 uA standby (vs PIC18F1320T-I/ML)
Design Notes
Estimated: at Vdd=5.0 V and 25 MHz active CPU current, the PIC18F1320T-E/ML typically draws 5-8 mA in active mode. Use a 0.1 uF ceramic decoupling capacitor within 5 mm of each Vdd pin, plus a 1-10 uF bulk capacitor at the board entry. For battery-powered designs, switch the device to SLEEP mode via the SLP instruction and use timer-driven wakeups to take advantage of the 0.1 uA nanoWatt standby current.
The 28-QFN exposed thermal pad must be soldered to a continuous ground copper pour of at least 1 square inch. For high-duty-cycle PWM or continuous CPU activity, this copper pour provides the thermal path needed to keep junction temperature within the -40C to +125C industrial range. Estimated: the QFN-28 with a 1 sq-in pad gives theta_JA around 30-40 C/W, sufficient for the device's sub-50 mA active current.
Keep analog signal traces (AN0-AN5) short and routed away from the PWM digital outputs (CCP1/P1A on RC2) and the oscillator pins (OSC1/OSC2). Place the MCLR pull-up resistor close to the pin to avoid noise pickup. The ICSP clock and data pins (RB6/PGC and RB7/PGD) should remain accessible for in-circuit programming - do not route other signals to RB6/RB7 or risk program-debug failures.
Configuration bits must be set correctly: select the internal oscillator only if you intend to leave OSC1/OSC2 floating, otherwise leave the external oscillator bits set for crystal operation. Do not exceed 5.5 V on any pin or the absolute maximum Vdd specification. For low-power designs, disable unused peripherals via the appropriate PMDx registers and use weak-pull-up rather than external pull-ups where possible.
Compliance Information
E-grade industrial temperature range only; not AEC-Q100 qualified. Use Q-graded parts for AEC-Q100 automotive applications. RoHS/REACH compliance per Microchip product page.
