PIC16F18323-E/SLVAO - 8-bit XLP MCU, 32MHz, 3.5KB Flash | Microchip
MPN: PIC16F18323-E/SLVAO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.05 | $105.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.84 | $840.00 |
| 3,000 | $0.71 | $2,130.00 |
PIC16F18323-E/SLVAO Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, I/O peripherals, and often analog peripherals. The PIC16F18323 falls into the 8-bit RISC-MCU hypernym hierarchy (PIC16 -> PIC -> Microchip 8-bit MCUs -> microcontroller -> embedded computing). Its 14-bit instruction word and modified Harvard architecture deliver deterministic execution with low power consumption, making it ideal for battery-operated and energy-harvesting designs.
Key features include 256 bytes of SRAM data memory, 256 bytes of EEPROM data memory, Peripheral Pin Select (PPS) for flexible pin mapping, multiple PWM modules, a 10-bit ADC with computation, and hardware communication peripherals (I2C, SPI, EUSART). The XLP technology achieves sub-microamp sleep currents (typical 50 nA in Sleep mode with watchdog disabled), enabling years of operation on a single coin-cell battery. The automotive-grade /VAO variant supports the -40C to +125C extended temperature range demanded by under-the-hood and body-electronics applications.
The device is supported by Microchip's MPLAB X IDE, XC8 compiler, and the MPLAB Code Configurator for rapid peripheral setup. Debug and programming are handled via the In-Circuit Serial Programming (ICSP) interface, with the newer PICkit 4 and MPLAB ICD 4 tools providing modern debugging capabilities. The wide VDD range of 1.8V to 5.5V enables direct connection to 2xAA, single Li-ion, or 3.3V regulated rails without external level shifting.
Typical applications include automotive body modules, sensor interface nodes, LED lighting controllers, low-power IoT edge nodes, battery management peripherals, and consumer white goods control. The CLC and CWG peripherals allow hardware-driven state machines, freeing the CPU to remain in Sleep for extended periods. For HVAC or appliance controls, the combination of CIPs, ADC, and automotive-grade temperature tolerance reduces BOM cost and PCB area.
A critical design tip when using the PIC16F18323 family is to verify pin assignments using the PPS feature early in the design cycle, because PPS remapping is non-trivial after firmware development. Also note that the -E/SLVAO suffix indicates the SL (SOIC-14) package combined with the VAO automotive designation; non-automotive variants share the same silicon but may have different traceability or screening levels.
This page synthesizes distributor pricing, verified drop-in alternatives, datasheet pinout, and practical design notes that complement the manufacturer datasheet. Compared with the bare Microchip product page or distributor listings, this consolidated view accelerates procurement and design-in decisions for engineers and buyers.
Drop-in alternatives for PIC16F18323-E/SLVAO — 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 PIC16F18323-E/SLVAO (same form factor and footprint) — differing in ADC, Package, Core Architecture, Operating Temperature Range, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18323-E/SL
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F18324-I/SL
✅ Drop-In✓ In Stock
$0.82 / Unit
View Datasheet →PIC16F18313-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1823-E/SL
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC16F18323-E/SLVAO Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 RISC |
| Instruction Set | 14-bit instruction word, 49 instructions |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data Memory (SRAM) | 256 bytes |
| Data EEPROM | 256 bytes |
| Package | 14-SOIC (SL) |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature Range | -40 C to +125 C (extended / -E grade) |
| Temperature Grade | Automotive (VAO designation) |
| ADC | 10-bit ADC with computation (ADC2) |
| Communication Peripherals | I2C, SPI, EUSART |
| Special Peripherals (CIPs) | CLC, CWG, ZCD, NCO, DSM |
| Peripheral Pin Select (PPS) | Yes |
| XLP Technology | Yes (Extreme Low Power) |
| Programming/Debug | ICSP, 2-wire (ICD) |
| RoHS Status | Compliant |
| MSL Level | MSL1 or MSL3 (per JEDEC J-STD-020) |
| Mounting Type | Surface Mount |
PIC16F18323-E/SLVAO Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Pin 2 | RA5 — I/O port A bit 5 (PPS-mappable) |
| Pin 3 | RA4 — I/O port A bit 4 (PPS-mappable) |
| Pin 4 | RA3/MCLR — I/O port A bit 3 / Master Clear reset |
| Pin 5 | RC5 — I/O port C bit 5 (PPS-mappable) |
| Pin 6 | RC4 — I/O port C bit 4 (PPS-mappable) |
| Pin 7 | RC3 — I/O port C bit 3 (PPS-mappable) |
| Pin 8 | RC2 — I/O port C bit 2 (PPS-mappable) |
| Pin 9 | RC1 — I/O port C bit 1 (PPS-mappable, ICSPCLK) |
| Pin 10 | RC0 — I/O port C bit 0 (PPS-mappable, ICSPDAT) |
| Pin 11 | RA2 — I/O port A bit 2 (PPS-mappable) |
| Pin 12 | RA1 — I/O port A bit 1 (PPS-mappable) |
| Pin 13 | RA0 — I/O port A bit 0 (PPS-mappable) |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F18323-E/SLVAO is suitable for 6 applications: Automotive Body Control Module, Battery-Powered IoT Sensor Node, LED Lighting Controller, Industrial Sensor Interface, Consumer White Goods Control, HVAC Fan and Blower Controller.
Automotive Body Control Module
The PIC16F18323-E/SLVAO's -40C to +125C automotive-grade temperature range and /VAO traceability documentation make it ideal for automotive body control modules such as mirror adjusters, seat controllers, and window lift nodes. The device's 32MHz CPU and CIPs (CLC, CWG, NCO) handle PWM lighting, LIN bus timing, and motor PWM driver sequencing without continuous CPU intervention. Combined with XLP sub-microamp Sleep current, the part draws negligible quiescent current when the vehicle is parked for weeks, yet wakes within microseconds on CAN or local interrupt. The 14-SOIC package fits standard through-hole-replacement PCB pads while supporting 5V regulated vehicle power rails natively, simplifying integration into existing body-electronics designs.
Recommended
Battery-Powered IoT Sensor Node
The PIC16F18323's XLP technology, 256-byte SRAM, and Core Independent Peripherals make it well-suited to multi-year battery-powered IoT sensor nodes transmitting over LoRa, BLE, or sub-GHz radio. The 10-bit ADC with computation (ADC2) handles averaging and threshold detection without CPU wake-up, while the CLC and CWG peripherals can drive power-gating FETs directly. At full Sleep with watchdog disabled, the device draws under 100 nA, allowing coin-cell battery lifetime of 5+ years in intermittent measurement applications. The 14-SOIC package is footprint-compatible with common wireless module carriers, simplifying radio-coprocessor integration.
Recommended
LED Lighting Controller
The PIC16F18323-E/SLVAO's Complementary Waveform Generator (CWG) and multiple PWM channels enable hardware-driven LED dimming and color mixing without CPU overhead. The 16-bit PWM resolution supports smooth fades, while the Zero-Cross Detect (ZCD) peripheral can synchronize dimming to AC line frequency for phase-cut dimmer compatibility. The automotive temperature grade ensures reliable operation in outdoor or under-hood LED driver modules. Designers can leverage PPS to route PWM outputs to any I/O pin, easing PCB layout when multiple LED strings are routed across the board.
Recommended
Industrial Sensor Interface
The PIC16F18323-E/SLVAO's 1.8V to 5.5V VDD range and integrated 10-bit ADC make it ideal for industrial sensor interface modules such as 4-20mA loop converters, RTD conditioners, and bridge sensor amplifiers. The EUSART supports RS-485 half-duplex with auto-direction control via PPS-mapped pins, while the CWG can drive optocouplers for isolated signal paths. The automotive temperature rating provides headroom for harsh industrial environments including factory cabinets and outdoor instrumentation. Combined with on-chip EEPROM for calibration storage, the part eliminates external memory and reduces BOM complexity.
Recommended
Consumer White Goods Control
The PIC16F18323's combination of CLC, CWG, and ADC2 hardware acceleration reduces firmware complexity in washing machine, dishwasher, and refrigerator controllers where multi-state machine behavior is required. The XLP technology helps meet Energy Star standby power targets, drawing less than 0.1 mW when idle. The 14-SOIC package fits legacy PCB layouts migrating from older PIC16F1823 designs, while the automotive-grade temperature variant supports under-cabinet appliance environments with elevated thermal stress. EEPROM-based user setting storage eliminates external memory.
Recommended
HVAC Fan and Blower Controller
The PIC16F18323-E/SLVAO is well-suited to HVAC fan and blower speed controllers where the Complementary Waveform Generator produces complementary PWM with programmable dead-band for driving half-bridge FET drivers directly. The ZCD peripheral detects AC line zero crossings for phase-angle controlled TRIAC triggering in legacy AC fan systems. The -40C to +125C extended temperature operation covers attic, basement, and outdoor HVAC installations. PPS allows the same firmware to support both 12V DC brushless and 24V AC fan variants without pin reassignment in hardware.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18323-E/SLVAO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18323-E/SL | PIC16F18324-I/SL | PIC16F18313-I/SL | PIC16F1823-E/SL |
|---|---|---|---|---|---|
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 3.5 KB | 3.5 KB | 7 KB | 3.5 KB | 3.5 KB |
| Temperature Grade | -40C to +125C (Automotive /VAO) | -40C to +125C | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C |
| Core Independent Peripherals (CIPs) | CLC, CWG, ZCD, NCO, DSM | CLC, CWG, ZCD, NCO, DSM | CLC, CWG, ZCD, NCO, DSM | CLC, CWG, ZCD, NCO, DSM | Limited (no CWG/NCO) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | No |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Automotive /VAO Qualification | Yes | Partial (no /VAO traceability) | No | No | Partial |
Key Differentiators
- Automotive /VAO traceability with -40C to +125C operation (vs PIC16F18324-I/SL)
- Core Independent Peripherals (CLC, CWG, NCO, DSM) (vs PIC16F1823-E/SL)
- Peripheral Pin Select (PPS) flexibility (vs PIC16F1823-E/SL)
Design Notes
Estimated: at 32 MHz CPU, VDD = 3.3 V, and active peripheral load, typical active current is approximately 2-3 mA. For battery designs, use Sleep mode aggressively - the XLP Sleep current with watchdog disabled is sub-microamp, allowing the CPU to spend most of its time asleep and only wake on ADC, interrupt, or RTCC events. Use the CLC peripheral to offload state-machine logic from the CPU so it can stay in Sleep longer.
Estimated: at full 32 MHz operation the device dissipates well under 50 mW, so thermal management is rarely a concern at room temperature. However, in sealed automotive enclosures at +85C ambient, ensure that the -40C to +125C operating range is not exceeded at the silicon junction. Forced airflow is generally not required for this part family.
Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin, with a bulk 1-10 uF capacitor nearby. For ADC accuracy, place a 0.1 uF + 1 uF pair on the AVREF or VDD+ADC reference lines if the on-chip FVR is used. Route ICSP lines (RC0/RC1) with a 4.7k pull-up on MCLR (RA3) and avoid long traces that could couple noise into the programming interface.
Do not assume PPS functions are usable on every pin; some pins are input-only or have limited remap options. Always check the PPS table in the datasheet before assigning peripheral functions to I/O. Also note that the /VAO suffix does not imply AEC-Q100 Grade 0 qualification - confirm the specific automotive requirement with Microchip's product documentation if your design requires formal AEC-Q100 compliance.
For PWM-driven outputs above 25 kHz, route PWM traces away from analog ADC inputs to minimize switching noise coupling. Use a ground guard ring around the ADC input traces. When using the CWG to drive external FETs, add a small RC snubber (typically 100 ohms + 1 nF) close to the gate to slow the edge and reduce EMI emissions.
Compliance Information
RoHS and REACH compliance per Microchip product page. /VAO designation supports automotive traceability documentation but does not by itself constitute formal AEC-Q100 Grade 0 qualification - consult Microchip automotive product documentation for specific AEC-Q100 status.
