PIC18F1320T-I/ML - 8KB Flash 40MHz 8-bit MCU | Microchip
Référence : PIC18F1320T-I/ML ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.36 | $336,00 |
| 500 | $3.02 | $1 510,00 |
| 1 000 | $2.74 | $2 740,00 |
| 3 300 | $2.4 | $7 920,00 |
PIC18F1320T-I/ML Présentation
A microcontroller (MCU) is a single-chip computer containing a CPU, volatile and non-volatile memory, peripherals, and I/O — used to sense, decide, and actuate in embedded systems. The PIC18F family sits in Microchip's 8-bit roadmap, sitting beneath PIC24/dsPIC in compute density while offering Harvard architecture, RISC instruction set, and a mature toolchain (MPLAB X, XC8). The PIC18F1320 belongs to the smaller pin-count tier (18/20/28-pin) optimized for cost-sensitive and space-constrained designs.
Key features include eight power-managed modes that drop current to 0.1 µA standby, integrated 10-bit ADC with multiple channels, and the Enhanced Flash memory with self-programmability under software control. The wide 2.0–5.5 V supply tolerates direct battery operation (2x AA, coin cell, USB) without external regulation, and the device supports in-circuit serial programming (ICSP) plus in-circuit debugger (ICD) interfaces.
Architecturally, the PIC18F1320 employs a 16-bit instruction word with an 8-bit data path, eight-level hardware stack, and a 31-level software stack. The 10-bit ADC uses successive approximation with up to seven analog input channels (depending on package); nanoWatt modes include Run, Idle, Sleep, Timer1 oscillator, PRI_RUN, SEC_RUN, and PRI_IDLE — each tuned to trade wake latency vs. quiescent current.
Typical applications include battery management devices, sensor conditioning nodes, low-power consumer appliances, USB HID peripherals, and small home appliances. Thanks to its wide voltage range and nanoWatt sleep modes, the PIC18F1320 is often specified where a regulator is undesirable or unacceptable.
When designing in this part, place the exposed pad (EP) on the bottom of the QFN to a ground pour with multiple thermal vias to dissipate heat and maintain substrate integrity. Decouple VDD with 100 nF and 10 µF capacitors within 3 mm of the pins; a 100 Ω ferrite or ferrite bead on VDD can further reduce noise injection from switching regulators sharing the rail.
This page synthesizes distributor pricing, drop-in same-package alternatives from the same Microchip PIC18F family, and practical design notes not consolidated in the single manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC18F1320T-I/ML — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18F1320T-I/ML (même facteur de forme et même empreinte) — différant par Package, Core Architecture, ADC, Program Memory (Flash), Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F1220T-I/ML
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.74 / unité
Voir la fiche technique →PIC18F1320-I/ML
✅ Remplacement direct✓ En stock
$2.55 / unité
Voir la fiche technique →PIC18LF1320-I/ML
✅ Remplacement direct✓ En stock
$3.12 / unité
Voir la fiche technique →PIC18F1220-I/ML
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.85 / unité
Voir la fiche technique →PIC18F1320T-I/MLG
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F1320T-I/ML Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC18 8-bit RISC |
| Program Memory | 8 KB Flash (4K x 16 words) |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 16 |
| ADC | 10-bit, 7 channels |
| Boîtier | QFN-28 (ML) 6x6 mm with exposed pad |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40 C to +85 C (Industrial) |
| Power Management | nanoWatt Technology - 6 modes, 0.1 µA standby |
| In-Circuit Programming | ICSP / ICD supported |
| RoHS Compliance | Compliant |
Configuration des broches de PIC18F1320T-I/ML
| Broche 1 | RA2/AN2 — Bidirectional I/O / Analog input channel 2 |
| Broche 2 | RA3/AN3/VREF+ — Bidirectional I/O / Analog input / ADC positive reference |
| Broche 3 | RA4/AN4 — Bidirectional I/O / Analog input channel 4 (open-drain) |
| Broche 4 | RA5/AN5 — Bidirectional I/O / Analog input channel 5 |
| Broche 5 | VSS — Ground reference |
| Broche 6 | OSC1/RA7 — Crystal oscillator input / bidirectional I/O |
| Broche 7 | OSC2/RA6 — Crystal oscillator output / bidirectional I/O |
| Broche 8 | RC0 — Bidirectional I/O port C bit 0 |
| Broche 9 | RC1 — Bidirectional I/O port C bit 1 |
| Broche 10 | RC2 — Bidirectional I/O port C bit 2 |
| Broche 11 | RC3 — Bidirectional I/O port C bit 3 |
| Broche 12 | RC4 — Bidirectional I/O port C bit 4 |
| Broche 13 | RC5 — Bidirectional I/O port C bit 5 |
| Broche 14 | RC6 — Bidirectional I/O port C bit 6 |
| Broche 15 | RC7 — Bidirectional I/O port C bit 7 |
| Broche 16 | VSS — Ground reference |
| Broche 17 | VDD — Positive supply (2.0 V to 5.5 V) |
| Broche 18 | RB0/INT — Bidirectional I/O / external interrupt |
| Broche 19 | RB1 — Bidirectional I/O port B bit 1 |
| Broche 20 | RB2 — Bidirectional I/O port B bit 2 |
| Broche 21 | RB3 — Bidirectional I/O port B bit 3 |
| Broche 22 | RB4 — Bidirectional I/O port B bit 4 |
| Broche 23 | RB5 — Bidirectional I/O port B bit 5 |
| Broche 24 | RB6/PGC — Bidirectional I/O / ICSP clock |
| Broche 25 | RB7/PGD — Bidirectional I/O / ICSP data |
| Broche 26 | MCLR/VPP/RA0 — Master clear reset / programming voltage / port A bit 0 |
| Broche 27 | RA1/AN1 — Bidirectional I/O / Analog input channel 1 |
| Broche 28 | NC — Not connected (per datasheet) |
| Broche 29 | PAD — Exposed thermal pad - connect to VSS |
Applications typiques
PIC18F1320T-I/ML convient pour 7 applications: Battery Management Devices, Industrial Sensor Conditioning, Low-Power Consumer Appliances, USB HID Peripherals, Small Home Appliance Control, LED Lighting and Indication, Automotive Interior Modules (Non-Safety).
Battery Management Devices
The PIC18F1320T-I/ML suits battery-operated products because it operates from 2.0–5.5 V and consumes 0.1 µA in standby via nanoWatt Technology, enabling multi-year life on two AA cells. Its 8 KB Flash holds state machines for fuel gauging, low-battery alerts, or charge-profile selection. The 10-bit ADC monitors cell voltage and current, while the wide voltage range avoids an external LDO that would otherwise drain the battery. Compared to discrete logic, the integrated ADC and timers shrink PCB area.
Recommandé
Industrial Sensor Conditioning
In factory sensor interfaces the PIC18F1320T-I/ML reads 4–20 mA or 0–10 V transducer signals through its 10-bit ADC (7 channels) and posts results on GPIO or UART. The wide 2.0–5.5 V supply tolerates 24 V industrial bus inputs after front-end resistor scaling, while its -40 to +85 C operation handles production-floor environments. The 8 KB Flash supports Modbus RTU or simple proprietary protocols without external memory. Estimated power at 40 MHz, 5 V: roughly 22 mA active, allowing fanless PCB-mount designs.
Recommandé
Low-Power Consumer Appliances
For small kitchen or personal-care appliances the PIC18F1320T-I/ML combines user-input buttons, LED indicators, and timer-driven buzzer or motor control from a single chip. nanoWatt sleep current of 0.1 µA keeps standby power below the EU Ecodesign 0.5 W limits and the 0.1 µA standby is a key enabler for battery-equipped appliances. The QFN-28 (ML) 6x6 mm exposed pad provides improved thermal dissipation for solenoid or relay drive. Estimated: design executes a 100-step state machine in 4 KB Flash with 4 KB headroom for diagnostics.
Recommandé
USB HID Peripherals
Although the PIC18F1320T-I/ML lacks native USB, its 40 MHz throughput and 8 KB Flash can implement low-speed USB 1.1 HID via software on D+/D- GPIO with external pull-up resistors and 3.3 V regulation. The wide operating voltage allows direct 5 V USB VBUS supply, while the small QFN package suits dongle-format peripherals. Compared to dedicated USB MCUs this approach trades programming complexity for reduced BOM cost. The 256-byte SRAM constrains HID report buffers, so designers must minimize RAM footprint or upgrade to PIC18F14K50-family for native USB.
Recommandé
Small Home Appliance Control
Coffee makers, irons, and small kitchen tools use the PIC18F1320T-I/ML to drive TRIAC/SSR elements, read NTC temperature sensors via the on-chip 10-bit ADC, and time user-set cooking profiles from 8 KB of Flash. The QFN-28 6x6 mm exposed pad handles modest continuous dissipation while keeping a small PCB. nanoWatt sleep preserves battery backup for clock functions on unplug events. Estimated: one A/D channel plus two timer peripherals can implement closed-loop temperature control within the 10 MIPS instruction budget.
Recommandé
LED Lighting and Indication
Architectural LED drivers, dimmers, and indicator strips use the PIC18F1320T-I/ML to generate PWM dimming, fade tables, and color-mixing ramps from a single low-cost MCU. The 2.0–5.5 V supply allows direct 3.3 V or 5 V LED rails without regulation, while nanoWatt standby keeps average consumption low for always-on indicator applications. Estimated: at 40 MHz the device can update four PWM channels at 10 kHz with 256-step resolution, suiting RGBW mixing. External MOSFETs or LED drivers handle the actual high-current switching.
Recommandé
Automotive Interior Modules (Non-Safety)
Although non-AEC-Q100, the PIC18F1320T-I/ML finds use in non-safety interior modules such as HVAC trim controls, ambient lighting, or seat-position memory switches where its 8-bit architecture and low standby current meet cost targets. The -40 to +85 C industrial grade covers typical cabin environments. For safety-critical or AEC-Q100 work, designers should step up to a Microchip PIC18 K-series or dsPIC variant. The 10-bit ADC suits knob-position sensing and trim-button de-bounce without external signal conditioning.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F1320T-I/ML — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F1220T-I/ML | PIC18F1320-I/ML | PIC18LF1320-I/ML | PIC18F1220-I/ML | PIC18F1320T-I/MLG |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-28 (ML) 6x6 mm | QFN-28 (ML) 6x6 mm - same | QFN-28 (ML) 6x6 mm - same | QFN-28 (ML) 6x6 mm - same | QFN-28 (ML) 6x6 mm - same | QFN-28 (ML) 6x6 mm - same |
| Program Memory (Flash) | 8 KB | 4 KB | 8 KB | 8 KB | 4 KB | 8 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum CPU Speed | 40 MHz | 40 MHz | 40 MHz | 20-25 MHz (LF max at low VDD) | 40 MHz | 40 MHz |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 1.8 V to 3.6 V (LF variant) | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| I/O Pins | 16 | 16 | 16 | 16 | 16 | 16 |
| Standby Current (nanoWatt) | 0.1 µA | 0.1 µA | 0.1 µA | 0.1 µA | 0.1 µA | 0.1 µA |
| Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principaux différenciateurs
- NanoWatt sleep current of 0.1 µA at full industrial -40 to +85 C (vs PIC18F1220T-I/ML)
- Wide 2.0–5.5 V supply tolerates direct battery and USB operation (vs PIC18LF1320-I/ML)
- Lowest 8 KB Flash option within the PIC18 nanoWatt family in QFN-28 (ML) (vs PIC18F1230-I/P)
Notes de conception
The QFN-28 (ML) 6x6 mm package has a center exposed pad that must be soldered to a ground pour with at least four thermal vias to the inner/inner or inner/bottom ground plane. Skipping this connection degrades thermal performance, may violate DC bias settling on the substrate, and risks incomplete ground return. Place 100 nF and 10 µF decoupling capacitors within 3 mm of VDD/VSS pins to suppress switching transients. A 100 Ω ferrite bead between the regulator and VDD pin reduces noise injection from upstream switching rails.
Estimated: at 40 MHz Fosc and 5.0 V VDD, the PIC18F1320T-I/ML draws approximately 22 mA active and 0.1 µA in Sleep. Designers specifying battery life should use the Timer1 oscillator sleep mode for periodic wake intervals, which gives typical current of 2-3 µA at 32 kHz. The 2.0–5.5 V supply tolerates direct 2x AA cell operation down to ~2.0 V without boost converter, but operation below 2.0 V requires the LF variant. Plan for a low-battery reset threshold around 2.0 V to ensure reliable Flash writes.
Common pitfalls when prototyping with the PIC18F1320T-I/ML: (1) Forgetting MCLR pull-up to VDD — without it the part may fail to start or randomly reset. (2) Using a crystal without load-capacitor calculation matching the XT/HS mode spec — extra capacitance slows startup. (3) Programming via ICSP without isolating high-capacitance VDD rail — if VDD is not stable during programming the part will fail to enter ICSP mode. (4) Confusing 8-bit ADC result (0–255) with the 10-bit ADC result (0–1023) — always right-shift the 10-bit value by 2 for compatible output format.
Informations de conformité
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications a PIC18 K-series or dsPIC AEC-Q100 part should be selected instead.
