PIC16F18313-I/P - 8-Bit 32MHz MCU 3.5KB Flash 8-PDIP | Microchip
MPN: PIC16F18313-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.43 | $1.43 |
| 10 | $1.29 | $12.90 |
| 100 | $1.08 | $108.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.79 | $790.00 |
PIC16F18313-I/P Overview
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus width, optimized for cost-sensitive, low-power, and deterministic embedded applications. Within the taxonomy of electronic components, the 8-bit MCU sits between microprocessors (which require external peripherals) and digital signal controllers. PIC16F MCUs in particular are widely used for their RISC architecture, low power consumption, and rich peripheral integration in the XLP (eXtreme Low Power) family.
Key features of the PIC16F18313-I/P include eXtreme Low Power (XLP) technology with sub-uA sleep currents, an operating voltage range of 2.3V to 5.5V, internal oscillator up to 32MHz, and 6 I/O pins with PPS routing. The device supports up to four 10-bit PWM channels, two comparators, and hardware-based communication peripherals (I2C, SPI, EUSART with auto-baud). Its CIP architecture allows complex timing and logic functions to operate without CPU intervention, freeing the core for application logic.
From an architectural standpoint, the PIC16F18313 uses a 14-bit instruction word modified Harvard architecture with a hardware stack and accumulator-based ALU. The 10-bit ADC supports up to 5 channels with selectable acquisition and computation modes, while the 5-bit DAC provides a hardware voltage reference. The PPS module allows digital peripheral signals (UART, SPI, PWM, CLC outputs) to be remapped to any available I/O pin, dramatically simplifying PCB layout in space-constrained designs.
Typical applications include battery-powered IoT sensor nodes, home automation controllers, LED lighting controllers with smooth dimming, low-cost consumer appliances, and small industrial sensor interfaces. Its tiny 8-pin footprint and low power draw make it especially suitable for retrofittable connected devices where PCB area and quiescent current are critical.
When designing with this MCU, mind the I/O count: only 6 of the 8 pins are usable as GPIO because VDD, VSS, and (on some variants) ICSPCLK/ICSPDAT consume fixed assignments. Use PPS liberally to route peripherals to the most PCB-friendly pins. Decouple VDD with a 100nF ceramic capacitor placed within 5mm of the pin, and consider a 10uF bulk cap if the source is high-impedance.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not aggregated in the manufacturer datasheet, providing a single reference for sourcing and engineering decisions.
Drop-in alternatives for PIC16F18313-I/P — 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 PIC16F18313-I/P (same form factor and footprint) — differing in Package, ADC, I/O Pins, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18313-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.75 / Unit
View Datasheet →PIC16F18313-I/RFVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1829-I/P
✅ Drop-In✓ In Stock
$1.25 / Unit
View Datasheet →PIC16F1828-I/P
✅ Drop-In✓ In Stock
$1.21 / Unit
View Datasheet →PIC16F1827-I/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.24 / Unit
View Datasheet →PIC16F18313-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 8-bit enhanced mid-range |
| Maximum Clock Frequency | 32 MHz |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| SRAM | 256 bytes |
| EEPROM | 256 bytes |
| Supply Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 6 |
| ADC | 10-bit, 5 channels |
| DAC | 5-bit, 1 channel |
| Comparators | 2 |
| PWM Channels | 4 (10-bit) |
| Communication | I2C, SPI, EUSART (auto-baud) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 8-pin PDIP (P) |
| Mounting Type | Through-Hole |
| RoHS Status | Compliant |
PIC16F18313-I/P Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O pin / PPS remappable peripheral |
| Pin 2 | RA4 — Bidirectional I/O pin / PPS remappable peripheral |
| Pin 3 | RA3/MCLR — Bidirectional I/O pin or Master Clear (external reset) input |
| Pin 4 | VDD — Positive supply voltage (2.3V to 5.5V) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RA0/ICSPDAT — Bidirectional I/O pin / ICSP data line |
| Pin 7 | RA1/ICSPCLK — Bidirectional I/O pin / ICSP clock line |
| Pin 8 | RA2 — Bidirectional I/O pin / PPS remappable peripheral |
Typical Applications
PIC16F18313-I/P is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Home Automation Controllers, LED Lighting Controllers with Smooth Dimming, Low-Cost Consumer Appliances, Industrial Sensor Interfaces, Automotive Interior Modules (Under -40C to +85C), Hobbyist and Educational Embedded Projects.
Battery-Powered IoT Sensor Nodes
The PIC16F18313-I/P's XLP technology delivers sub-uA sleep currents ideal for coin-cell or 2xAAA battery-powered wireless sensor nodes. The 32MHz core and Core Independent Peripherals (CLC, CWG) handle sensor sampling, threshold detection, and wake-up timing without CPU intervention, extending battery life to multiple years. PPS lets you remap UART/SPI to any I/O pin, simplifying RF module routing on crowded 8-pin boards. EEPROM stores calibration data and node IDs, while 256B SRAM suffices for short message buffering. Estimated: at 1% duty cycle (10ms active per second), average current is under 10uA from a 3V supply, enabling >5 year battery life from a 240mAh CR2032.
Recommended
Home Automation Controllers
In smart home hubs and wall-switch controllers, the PIC16F18313-I/P provides just enough I/O and processing for relay driving, button input, and low-rate wireless bridging. The 10-bit 5-channel ADC reads potentiometers, light sensors, or current shunts directly, while the 5-bit DAC generates reference voltages for analog sensor biasing. EUSART with auto-baud detects incoming baud rate from a host MCU without manual configuration, easing field provisioning. The 8-pin PDIP through-hole package simplifies hand-soldering and rework on service-friendly consumer hardware. Estimated: an average home automation task (relay toggle + button read + status LED) consumes under 30% of CPU at 8MHz.
Recommended
LED Lighting Controllers with Smooth Dimming
The PIC16F18313-I/P's four 10-bit PWM channels and Complementary Waveform Generator (CWG) deliver flicker-free dimming for LED strips, panels, and indicator rings. The 5-bit DAC plus internal FVR generate precise current references for constant-current LED drivers, while the 10-bit ADC monitors LED forward voltage for thermal foldback. CLC implements hardware-based PWM dithering for >16-bit effective resolution, eliminating audible flicker. The 2.3V-5.5V supply range covers both 3.3V logic-level strips and 5V analog LED chains. Estimated: at 32MHz core, the PWM update rate exceeds 7.8kHz with 10-bit resolution, well above the 200Hz human flicker fusion threshold.
Recommended
Low-Cost Consumer Appliances
Small appliances such as coffee makers, fans, kitchen timers, and personal care devices benefit from the PIC16F18313-I/P's low BOM count and integrated peripherals. Core Independent Peripherals handle button debouncing, motor PWM, and buzzer tone generation in hardware, freeing the CPU for user-interface logic. The 256B EEPROM stores user preferences, last-used settings, and factory calibration. Through-hole 8-pin PDIP simplifies prototyping on breadboards and one-off service boards. Estimated: at 16MHz core and modest peripheral load, idle power consumption is below 1.5mA active, with sleep currents under 50nA in XLP mode.
Recommended
Industrial Sensor Interfaces
For 4-20mA loop transmitters, thermocouple front-ends, and analog signal conditioning, the PIC16F18313-I/P provides a 10-bit ADC with computation modes (averaging, burst, threshold compare) directly in hardware. The hardware I2C/SPI/EUSART peripherals connect to digital sensors or isolated transceivers, while PPS routing lets you assign these interfaces to the most EMI-resistant pins. The 8-pin PDIP package suits DIN-rail or panel-mount daughterboards where serviceability matters. Estimated: ADC accuracy at 32MHz with 1us acquisition time supports sampling rates up to 500kSPS in burst mode, far exceeding typical sensor bandwidth needs.
Recommended
Automotive Interior Modules (Under -40C to +85C)
While the PIC16F18313-I/P is rated for industrial -40C to +85C operation, it is widely used in non-critical automotive interior modules such as ambient lighting, switch panels, and HVAC trim controls. The 8-pin PDIP supports through-hole assembly on automotive service-friendly boards, and PPS allows flexible PCB routing around connector placements. The EUSART with auto-baud supports LIN-bus-like low-speed communication when paired with an external transceiver. For under-hood or extreme-temperature zones, switch to the PIC16F18313-E/P variant with -40C to +125C rating. Estimated: at 5V supply, active current draw stays below 2.5mA at 32MHz, well within automotive quiescent budgets during key-off states.
Recommended
Hobbyist and Educational Embedded Projects
The PIC16F18313-I/P's 8-pin PDIP through-hole package is breadboard-friendly, making it ideal for hobbyists, makers, and university embedded systems courses. The PIC16 instruction set is well-documented with abundant example code, and MPLAB X IDE with XC8 compiler is free to download. With 3.5KB Flash and 256B SRAM, students can implement real projects including digital thermometers, IR remote decoders, motor speed controllers, and simple games. The Core Independent Peripherals teach modern MCU concepts such as hardware state machines and PWM generation without CPU load. Estimated: a beginner project (LED blink + UART echo) uses under 5% of Flash and 10% of SRAM at default optimization.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18313-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18313-E/P | PIC16F18313-I/RFVAO | PIC16F1829-I/P | PIC16F1828-I/P | PIC16F1827-I/P |
|---|---|---|---|---|---|---|
| Package | 8-PDIP | 8-PDIP | 8-PDIP equivalent variant | 8-PDIP | 8-PDIP | 8-PDIP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC16 enhanced mid-range 8-bit, 32 MHz | Same, 32 MHz | Same, 32 MHz | PIC16 enhanced mid-range 8-bit, 32 MHz | PIC16 enhanced mid-range 8-bit, 32 MHz | PIC16 enhanced mid-range 8-bit, 32 MHz |
| Flash / SRAM / EEPROM | 3.5 KB / 256 B / 256 B | 3.5 KB / 256 B / 256 B | 3.5 KB / 256 B / 256 B | 8 KB / 256 B / 256 B (more Flash) | 4 KB / 256 B / 256 B | 4 KB / 256 B / 256 B |
| Core Independent Peripherals (CLC/CWG) | Yes (CLC, CWG) | Yes | Yes | No | No | No |
| ADC | 10-bit, 5-channel with computation | 10-bit, 5-channel with computation | 10-bit, 5-channel with computation | 10-bit, 8-channel | 10-bit, 7-channel | 10-bit, 4-channel |
| DAC | 5-bit, 1 channel | 5-bit, 1 channel | 5-bit, 1 channel | None | None | None |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | No | No | No |
| Temperature Range | -40C to +85C (Industrial) | -40C to +125C (Extended) | Automotive qualified | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Key Differentiators
- Core Independent Peripherals (CLC, CWG) absent in older 8-pin PICs (vs PIC16F1829-I/P)
- 5-bit DAC for hardware voltage references (vs PIC16F1828-I/P)
- Peripheral Pin Select (PPS) flexibility (vs PIC16F1827-I/P)
Design Notes
Decouple VDD (pin 4) with a 100nF ceramic capacitor placed within 5mm of the IC, plus a 10uF bulk capacitor if the source impedance is high (e.g., long battery leads). The PIC16F18313-I/P's XLP sleep mode draws under 50nA with the ADC and comparators off, so the decoupling network does not need to supply peak inrush currents. For battery applications, add a 1M-ohm pulldown on MCLR (pin 3) to prevent parasitic resets during battery insertion transients.
Route ICSPCLK and ICSPDAT (pins 6 and 7) with short, direct traces to an ICSP header for in-circuit programming and debugging. Reserve RA0 and RA1 as primary ICSP pins unless your design strictly requires them as GPIO - using them as GPIO complicates field firmware updates. When using PPS, map high-frequency peripherals (EUSART, SPI) to pins physically nearest their connector to minimize trace length and EMI susceptibility.
Do not exceed 5.5V on VDD - the absolute maximum rating is 6.5V but sustained operation above 5.5V voids the electrical specifications. When migrating code from PIC16F1829 or PIC16F1828, watch for the absence of CLC, CWG, and PPS registers - conditional compilation guards around PPS-related code are recommended. Also note that RA3 doubles as MCLR: leaving it floating can cause spurious resets; tie it to VDD through a 10k resistor for normal operation as GPIO.
Compliance Information
RoHS and REACH compliance confirmed via Microchip product page and DigiKey listing. Industrial temperature grade -40C to +85C; the -E/P variant extends to +125C. AEC-Q100 qualification not applicable for the base I/P part; refer to PIC16F18313-I/RFVAO for automotive-grade variants.
