PIC16F18313T-I/MS - 8-bit 32MHz 3.5KB FLASH MCU 8-MSOP | Microchip
MPN: PIC16F18313T-I/MS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.99 | $0.99 |
| 10 | $0.89 | $8.90 |
| 100 | $0.79 | $79.00 |
| 500 | $0.71 | $355.00 |
| 1,000 | $0.64 | $640.00 |
| 2,500 | $0.58 | $1,450.00 |
PIC16F18313T-I/MS 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 such as timers, ADCs, communication interfaces, and GPIO. The PIC® family from Microchip is built on a modified Harvard architecture with RISC-style instruction set, and the PIC16F1xxx enhanced mid-range core adds Peripheral Pin Select (PPS) which remaps digital peripherals to any I/O pin, easing PCB layout. Within the broader taxonomy, an MCU belongs to microcontrollers -> integrated circuits -> semiconductors, and the PIC16F18313 sits at the low-pin-count end (8 pins) aimed at cost- and space-sensitive designs.
Key features of this device include a 10-bit ADC with up to 5 channels, a 5-bit DAC, two comparators, 10-bit PWM with complementary waveform generation, configurable logic cells (CLC), and communication interfaces including I2C, SPI, and UART/USART (EUSART). The eXtreme Low Power (XLP) technology delivers sub-uA sleep currents suitable for battery-powered sensor nodes, while LIN-bus support enables automotive body electronics. The ICSP/ICD interface allows in-circuit programming and debugging without removing the part from the board.
Architecturally, the PIC16F18313 uses a 14-bit instruction word with a 16-level hardware stack and a single accumulator (WREG) plus up to 4K words of linear program memory addressing. PPS remaps digital I/O functions to physical pins at runtime, decoupling peripheral selection from board layout. Internal oscillators (HFINTOSC up to 32MHz and LFINTOSC at 31kHz) eliminate the need for external crystals in many designs, reducing BOM and PCB area.
Typical applications include battery-powered IoT sensor nodes, automotive LIN slaves for body electronics, low-cost LED lighting controllers, consumer white goods user interfaces, and portable handheld instrumentation. The compact 8-pin MSOP package combined with XLP makes it well suited to space- and energy-constrained designs.
A key design consideration: the device operates from 1.8V to 5.5V (F suffix), with brown-out reset and watchdog timer configurable via configuration words. Always use the `-I` industrial temperature grade (-40C to +85C) for non-automotive designs that may see temperature swings, and pair the MCU with a 0.1uF ceramic decoupling capacitor placed within 3mm of the VDD pin.
This page synthesizes distributor pricing, same-family Microchip drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F18313T-I/MS — 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 PIC16F18313T-I/MS (same form factor and footprint) — differing in Package, ADC, Core Architecture, I/O Pins, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18313T-I/MF
✅ Drop-In✓ In Stock
$0.6 / Unit
View Datasheet →PIC16F18313-I/SNVAO
✅ Drop-In✓ In Stock
$0.87 / Unit
View Datasheet →PIC16F18313-E/SNVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18313-I/SN
✅ Drop-In✓ In Stock
$0.71 / Unit
View Datasheet →PIC16F18313-I/P
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16F18313T-I/MS Maximum Ratings & Electrical Characteristics
| Core | PIC16F1xxx enhanced mid-range 8-bit |
| Program Memory (FLASH) | 3.5 KB (2K x 14 words) |
| Data Memory (RAM) | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| I/O Pins | 6 |
| ADC | 10-bit, up to 5 channels |
| DAC | 5-bit, 1 channel |
| Comparators | 2 |
| PWM Channels | 10-bit, multiple outputs |
| Communication Interfaces | I2C, SPI, UART/USART (EUSART), LIN |
| Timers | Multiple 8-bit and 16-bit timers |
| Operating Temperature | -40 C to +85 C (industrial, "I") |
| Package | 8-MSOP (3.0 mm) |
| Mounting Type | Surface Mount |
| MSL Level | MSL1 (per Microchip) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Halogen-Free | Yes (per Microchip policy) |
PIC16F18313T-I/MS Pin Configuration
| Pin 1 | ICSPCLK/RA5 — ICSP clock / digital I/O RA5 |
| Pin 2 | RA1/ANA0 — Digital I/O RA1 / analog input AN0 |
| Pin 3 | RA2/ANA1 — Digital I/O RA2 / analog input AN1 |
| Pin 4 | VSS — Ground |
| Pin 5 | VDD — Positive supply (1.8 V to 5.5 V) |
| Pin 6 | RA4/AN3 — Digital I/O RA4 / analog input AN3 |
| Pin 7 | RA3/MCLR — Digital I/O RA3 / Master Clear (reset) |
| Pin 8 | RA0/ICSPDAT — Digital I/O RA0 / ICSP data |
Typical Applications
PIC16F18313T-I/MS is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Automotive LIN Bus Slave Nodes, LED Lighting Controllers, Consumer White Goods User Interface, Portable Handheld Instrumentation, Low-Cost Fan and Pump Speed Controllers.
Battery-Powered IoT Sensor Nodes
The PIC16F18313T-I/MS is well suited to battery-powered IoT sensor nodes because of its eXtreme Low Power (XLP) technology which delivers sub-uA sleep current at 1.8V to 5.5V supply and its 32MHz HFINTOSC eliminating the need for an external crystal. Placed as the central MCU on a sensor daughter board, it periodically wakes from deep sleep, samples a sensor over I2C or SPI, processes the data with the on-board 10-bit ADC and CLC blocks, transmits via UART or LoRa, and returns to sleep - all while keeping the average current below 50uA on a CR2032 cell. Compared with discrete sleep-controller implementations, the integrated XLP and CLC peripherals reduce BOM count and PCB footprint in the 8-MSOP form factor.
Recommended
Automotive LIN Bus Slave Nodes
The PIC16F18313T-I/MS's hardware LIN-capable EUSART plus on-chip timers handle the LIN 2.x slave protocol without software bit-banging, while the 5V tolerance of all I/O pins suits 12V automotive body-electronics environments (with external protection). Deployed as a LIN slave for window switches, mirror adjusters, ambient lighting modules, and seat controllers, the device interprets master LIN frames, drives PWM-controlled actuators with its 10-bit PWM module, and reports diagnostic states. The PPS feature simplifies board layout by remapping UART TX/RX to the most convenient I/O pins.
Recommended
LED Lighting Controllers
With multiple 10-bit PWM outputs and a 5-bit DAC for analog dimming, the PIC16F18313T-I/MS serves as a compact controller for decorative LED lighting strips, smart bulbs, and architectural fixtures. Operating from a single 3.3V or 5V rail, the MCU drives N-MOSFET switches on the PWM outputs to modulate LED current at audio-banding-immune frequencies above 20 kHz. The PPS, CLC, and NCO blocks allow generation of complex dimming curves, color-mixing, and breath-pattern animations without CPU intervention, leaving firmware headroom for a wireless (BLE/UART) link layer.
Recommended
Consumer White Goods User Interface
The PIC16F18313T-I/MS fits user-interface panels on washing machines, refrigerators, dishwashers, and microwave ovens where 6 GPIO pins are sufficient to drive an LED bar, scan 4 to 6 capacitive-touch or resistive buttons via the on-chip comparators, and update a small LED or segment display. Its 1.8V to 5.5V supply range and industrial -40C to +85C operating temperature match white-goods environments. The 5-bit DAC and PWM module provide variable buzzer volume and tone, replacing a separate sound-driver chip in cost-down BOMs.
Recommended
Portable Handheld Instrumentation
Handheld multimeters, clamp meters, environmental loggers, and low-cost oscilloscope probes benefit from the PIC16F18313T-I/MS's combination of small footprint, low power, and integrated 10-bit ADC and comparators. The MCU reads sensor inputs, performs averaging and one-point calibration in firmware, drives an LCD or OLED display over SPI, and runs from a single Li-ion cell via the on-chip LDO-compatible 1.8V to 5.5V supply range. The 256-byte EEPROM retains user calibration constants without external storage, reducing total BOM cost.
Recommended
Low-Cost Fan and Pump Speed Controllers
The PIC16F18313T-I/MS's 10-bit PWM module, configurable logic cells, and analog comparators enable closed-loop fan or small DC-pump speed control using either tachometer feedback or back-EMF sensing. Operating from the 12V system rail via a small LDO, the MCU generates a 25 kHz PWM drive to a logic-level N-FET, reads back-EMF or Hall-sensor pulses via a comparator input, and adjusts duty cycle to maintain set RPM. The 8-pin MSOP footprint keeps the controller board under 10 mm square.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18313T-I/MS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18313T-I/MF | PIC16F18313-I/SNVAO | PIC16F18313-I/SN | PIC16F18313-I/P |
|---|---|---|---|---|---|
| Package | 8-MSOP (3.0 mm) | 8-MSOP - same | 8-SOIC - same pin count, larger footprint | 8-SOIC - same pin count, larger footprint | 8-PDIP - same pin count, through-hole |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| FLASH Program Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (I) | -40 C to +85 C | -40 C to +125 C (VAO) | -40 C to +85 C | -40 C to +85 C |
| Automotive Qualification | No | No | Yes (AEC-Q100 VAO) | No | No |
| Packaging Media | Tape & Reel (T) | Tape & Reel | Tube / Tray | Tube | Tube |
Key Differentiators
- Peripheral Pin Select (PPS) on an 8-pin MCU (vs PIC16F1827-I/P)
- Core Independent Peripherals (CLC, NCO) integrated (vs PIC16F1827-I/P)
- Automotive AEC-Q100 options in the same family (vs PIC16F18313-I/SN)
Design Notes
Place a 0.1uF ceramic decoupling capacitor within 3 mm of the VDD pin and a 10uF bulk capacitor on the same rail. The PIC16F18313T-I/MS uses Microchip eXtreme Low Power technology; with the watchdog disabled and HFINTOSC off, sleep current drops to a few hundred nanoamperes at 3.0 V. Always disable unused peripherals via the PMDx and CMxCON0 registers rather than leaving them idle, because each peripheral block contributes a small leakage current.
The 8-MSOP package has 0.65 mm pin pitch; route power and ground on inner layers with at least 0.2 mm trace/space and place vias in the thermal pad for improved heat dissipation. The exposed thermal pad (if present in the variant) MUST be soldered to the ground plane to meet thermal specifications. Avoid long traces on ICSPCLK and ICSPDAT - keep them under 50 mm to ensure reliable in-circuit programming.
Do not leave the MCLR pin floating - tie it to VDD through a 10kOhm resistor or directly to VDD if not needed. A floating MCLR pin causes spurious resets in noisy environments. Also, ensure the configuration-word settings for WDTE, BOREN, and FOSC match your design intent before locking the device via the ICSP - a wrong configuration word can lock the MCU into an un-reprogrammable state on some older PICs.
Compliance Information
RoHS compliant per Microchip product page. Standard grade is not AEC-Q100; choose VAO-suffix variants (PIC16F18313-I/SNVAO) for AEC-Q100 automotive qualification.
