PIC16F18313-I/SNVAO - 8-bit MCU, 3.5KB Flash, AEC-Q100 | Microchip
MPN: PIC16F18313-I/SNVAO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.3 | $13.00 |
| 100 | $1.12 | $112.00 |
| 500 | $0.98 | $490.00 |
| 1,000 | $0.87 | $870.00 |
PIC16F18313-I/SNVAO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a set of peripheral interfaces around a common bus. Within Microchip's taxonomy, the PIC16F18313 sits in the PIC16 mid-range family, between the smaller PIC10/12 baseline MCUs and the higher-pin-count PIC18 and dsPIC33 families. PIC16F devices use a 14-bit instruction word and Harvard architecture, which gives deterministic interrupt latency and a very compact code footprint relative to 8-bit CISC MCUs.
Key features include eXtreme Low Power (XLP) operation with currents in the nanoamp range for sleep and RTC modes, Peripheral Pin Select (PPS) that lets remappable peripherals be assigned to almost any I/O pin, and an on-chip 32 MHz high-speed internal oscillator that eliminates the need for an external crystal in most designs. Together these features reduce external component count and BOM cost for compact, low-power, sensor-rich applications.
The PIC16F18313 is built on an enhanced mid-range core with a 2-level hardware stack, a single-cycle hardware multiplier, and direct interrupt-on-change on every I/O. The integrated CIPs (CLC, CWG, NCO, DSM, COG) can replace small discrete logic ICs and timer chains, shrinking PCB area and improving EMC behavior because timing is generated entirely on-die.
Typical applications include automotive body and sensor nodes, IoT edge sensors, LED lighting controllers, low-power remote controls, and LIN-connected slave nodes in vehicle body modules. The AEC-Q100 grade and wide operating temperature range make the part especially attractive for under-hood and in-cabin automotive electronics.
When designing with this MCU, allocate I/O mapping using the PPS feature to simplify PCB routing and reuse firmware across PIC16F18313 and PIC16F18323 (20-pin) variants. Reserve at least one CLC and one NCO for software-free hardware timing if you need deterministic behavior independent of interrupt latency.
This page synthesizes distributor pricing, drop-in alternatives sourced from the Microchip product family and web cross-reference data, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F18313-I/SNVAO — 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/SNVAO (same form factor and footprint) — differing in Package, ADC, Operating Temperature, I/O Pins, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18313-I/SN
✅ Drop-In✓ In Stock
$0.71 / Unit
View Datasheet →PIC16F18313-E/SNVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18313-I/P
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16F18313-E/RFVAO
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC16F18313-E/P
✅ Drop-In✓ In Stock
$0.75 / Unit
View Datasheet →PIC16F18313-I/SNVAO Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 enhanced mid-range |
| Instruction Word | 14-bit (PIC16 RISC) |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| SRAM | 256 bytes |
| EEPROM | 256 bytes |
| I/O Pins | 6 (on 8-pin SOIC) |
| Supply Voltage Range | 2.3 V to 5.5 V (F variant) |
| Maximum CPU Clock | 32 MHz |
| Internal Oscillator | 32 MHz HF / 31 kHz LF |
| ADC | 10-bit, up to 5 channels |
| PWM Channels | 10-bit PWM, multiple channels |
| CIPs | CLC, CWG, NCO, DSM, COG |
| Peripheral Pin Select (PPS) | Yes |
| Operating Temperature Range | -40C to +85C (industrial, "I") |
| Package | 8-pin SOIC (SN), 0.154" / 3.90 mm body |
| Mounting Type | Surface Mount |
| AEC-Q100 | Qualified (VAO suffix) |
| RoHS Status | Compliant |
PIC16F18313-I/SNVAO Pin Configuration
| Pin 1 | RA0/ICSPCLK/VPP — Bidirectional I/O, ICSP clock, programming voltage |
| Pin 2 | RA1/ICSPDAT — Bidirectional I/O, ICSP data |
| Pin 3 | RA2 — Bidirectional I/O with interrupt-on-change and PPS |
| Pin 4 | VSS — Ground reference |
| Pin 5 | RA3/MCLR — Bidirectional I/O, Master Clear (reset) input |
| Pin 6 | RA4 — Bidirectional I/O with interrupt-on-change and PPS |
| Pin 7 | RA5 — Bidirectional I/O with interrupt-on-change and PPS |
| Pin 8 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
Typical Applications
PIC16F18313-I/SNVAO is suitable for 6 applications: Automotive Body Sensor Nodes, IoT Edge Sensor / Wireless Beacon, LED Lighting Controller, Low-Power Remote Control / HMI Button Node, LIN-Slave Automotive Actuator, Industrial Process Sensor / Transmitter.
Automotive Body Sensor Nodes
The PIC16F18313-I/SNVAO is well suited to automotive body sensor nodes - rain/light modules, door-switch readers, seat-occupancy detectors - where the AEC-Q100 qualification is mandatory and PCB area is extremely tight. Its 6 I/O pins are sufficient for a single sensor element plus a LIN or PWM interface, while the integrated CLC and NCO CIPs replace external timer ICs by generating wake-up and debounce logic in hardware. The XLP sleep current (under 100 nA typical in Retention mode) lets the node stay on the LIN bus at all times without draining the battery. The 8-pin SOIC footprint allows the entire sensor interface to fit on a 10 mm x 10 mm PCB alongside a LIN transceiver, which is a clear size and BOM win over PIC18 or ARM Cortex-M0 alternatives that need 20+ pins.
Recommended
IoT Edge Sensor / Wireless Beacon
For battery-powered IoT edge sensors such as occupancy beacons, HVAC airflow sensors, and BLE-tag companions, the PIC16F18313-I/SNVAO's nanoamp XLP sleep current and 32 MHz HF internal oscillator make it a strong host MCU. The peripheral pin select lets the SPI or UART lines for an external radio module (e.g. MRF24J40 or RN4870) be routed to any of the 6 I/O pins, simplifying PCB layout under a chip antenna. The 10-bit ADC handles ratiometric sensor reads with sufficient resolution for thermistor, photodiode, or CO2-sensor front ends, while the CWG generates the PWM dimming signal for an indicator LED without CPU overhead.
Recommended
LED Lighting Controller
The PIC16F18313-I/SNVAO is an excellent fit for small LED lighting controllers (under 1 A per channel) such as accent strips, indicator rings, or RGB status lights. Its 10-bit PWM peripheral provides flicker-free dimming, while the Complementary Waveform Generator (CWG) produces dead-band-controlled complementary outputs for half-bridge LED driver topologies. The CLC can be configured as a hardware fault gate that instantly latches off the PWM on overcurrent events without any software latency, which is critical for eye-safety and EMC reasons. The 8-pin SOIC package keeps the LED driver PCB compact and the 2.3-5.5 V supply range allows direct operation from a 3.3 V or 5 V rail.
Recommended
Low-Power Remote Control / HMI Button Node
The PIC16F18313-I/SNVAO works well as the MCU inside coin-cell-powered remote controls or wall-mounted HMI button nodes where 2-6 keys, an LED indicator, and an infrared or RF transmitter must run for years on a single CR2032. Its XLP sleep current below 100 nA plus interrupt-on-change wake-up on every I/O pin lets the device sleep until a key is actually pressed. The hardware NCO generates precise carrier frequencies for IR or sub-GHz protocols without CPU intervention, freeing firmware to focus on the protocol stack. The 3.5 KB Flash is enough for simple RC5/RC6 or proprietary RF codecs.
Recommended
LIN-Slave Automotive Actuator
In LIN-bus automotive actuators (mirror adjusters, headlamp levelers, window lift switches), the PIC16F18313-I/SNVAO functions as the LIN slave controller. With only 6 I/O pins it cannot drive a full H-bridge directly, but it can orchestrate a small MOSFET predriver or a low-side relay cluster while the heavy lifting is done by a dedicated H-bridge IC such as the MCP17510 or VNH5019. The 10-bit ADC monitors motor current via a shunt resistor for stall and short-circuit protection, while the CLC creates a hardware-only overcurrent shutdown path for functional safety. AEC-Q100 and the wide temperature range keep the part qualified for under-dash environments.
Recommended
Industrial Process Sensor / Transmitter
The PIC16F18313-I/SNVAO can serve as the controller in a 4-20 mA loop-powered or RS-485 industrial process sensor, where the wide 2.3-5.5 V supply simplifies operation from a 24 V bus through a small LDO or buck. Its 10-bit ADC is sufficient for bridge-type pressure sensors and thermocouple amplifiers after cold-junction compensation. The CWG peripheral generates an isolated PWM output that can be fed through an optocoupler to the loop, while the CLC implements hardware linearization for the sensor transfer function without CPU load. The AEC-Q100 screening - while listed as automotive - exceeds the temperature and reliability requirements of most industrial process installations, providing extra margin in harsh environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18313-I/SNVAO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18313-I/SN | PIC16F18313-E/SNVAO | PIC16F18313-I/P | PIC16F18313-E/RFVAO | PIC16F18313-E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-pin SOIC (SN) | 8-pin SOIC - same | 8-pin SOIC - same | 8-pin PDIP - same pinout, through-hole | 8-pin UDFN - same pinout, smaller SMD | 8-pin PDIP - same pinout, through-hole |
| Flash / SRAM / EEPROM | 3.5 KB / 256 B / 256 B | 3.5 KB / 256 B / 256 B | 3.5 KB / 256 B / 256 B | 3.5 KB / 256 B / 256 B | 3.5 KB / 256 B / 256 B | 3.5 KB / 256 B / 256 B |
| AEC-Q100 (automotive) | Yes (VAO) | No (industrial) | Yes (VAO) | No (industrial) | Yes (VAO) | No (industrial) |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C |
| Maximum CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| Supply Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Unit Price (USD, qty 1) | 1.45 | 1.10 | 1.65 | 1.30 | 1.70 | 1.50 |
Key Differentiators
- AEC-Q100 qualification (VAO suffix) in 8-pin SOIC (vs PIC16F18313-I/SN)
- Extended -40C to +125C operating range in same 8-pin SOIC (vs PIC16F18313-I/SNVAO (this part))
- Through-hole 8-pin PDIP option for hand-solderable prototyping (vs PIC16F18313-I/P)
- Smallest 8-pin UDFN for space-constrained automotive modules (vs PIC16F18313-E/RFVAO)
Design Notes
Take advantage of the XLP features: route the wake-up source through the Interrupt-on-Change (IOC) block and use Sleep mode with peripherals off to drop current to sub-100 nA. For battery-powered designs, disable the BOR by configuration bit only if the supply is already tightly regulated; otherwise leave BOR enabled to avoid undefined behavior on a slowly rising battery. For automotive 12 V buses, place a TVS (e.g. SMAJ5.0CA) and a series resistor at VDD, plus a 100 nF + 10 uF decoupling combination within 3 mm of the VDD pin.
Keep the ICSP footprint (RA0/ICSPCLK and RA1/ICSPDAT) accessible on the production PCB, even if programming is done via the on-chip bootloader. A 2x3 0.1" header or a Tag-Connect footprint saves hours of rework if a firmware update is required in the field. Route the MCLR line with a 10 kohm pull-up and a 100 nF cap to ground if the pin is used as a digital input; this prevents inadvertent resets on fast edges. For the 8-pin SOIC, place a continuous ground pour on the top layer and stitch vias around the perimeter for thermal relief.
The 32 MHz internal oscillator has a tolerance of about +/-2% across temperature; for UART baud-rate-sensitive applications (especially LIN at 19.2 kbps), use the 16 MHz HFINTOSC with the 4x PLL, or switch to an external crystal on RA4/RA5. Always configure the PPS registers to keep high-speed digital outputs (PWM, UART TX) physically close to the connector and route them over a continuous ground pour; avoid running these signals parallel to the analog ADC inputs to minimize crosstalk. The ADC requires a minimum acquisition time of about 1.5 us at 5 V - do not start conversions immediately after switching the input channel.
Do not leave the MCLR/RA3 pin floating in noisy automotive environments - even though internal weak pull-ups exist, they can be overdriven by injector or relay transients. Always use an external 10 kohm pull-up. Watch the configuration-word LVP bit: if left enabled, the RB5/RA5 pin is reserved for low-voltage programming; if the application uses RA5 as I/O, disable LVP and use high-voltage programming on RA0/RA3 instead. Finally, when migrating from PIC16F182x to PIC16F1831x, double-check the PPS register mapping - the PPS unlock sequence (PPSLOCKED bit) must be cleared before writing to PPS, or the writes silently fail.
Compliance Information
AEC-Q100 qualified per VAO suffix on Microchip product page. RoHS and lead-free per Microchip packaging materials datasheet. Halogen-free per Microchip environmental certification.
