PIC16F18324-E/P - 8-Bit MCU, 7KB Flash, 32MHz XLP | Microchip
MPN: PIC16F18324-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.07 | $107.00 |
| 500 | $0.91 | $455.00 |
| 1,000 | $0.78 | $780.00 |
PIC16F18324-E/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripheral interfaces. Within the broader taxonomy, the PIC16F18324 sits in the 8-bit MCU tier -> microcontroller -> embedded processor -> semiconductor. The PIC16 family uses a modified Harvard RISC architecture with a 14-bit instruction word optimized for deterministic, low-power embedded control. The "F" suffix denotes Flash program memory; the "18324" device family adds Core Independent Peripherals (CIPs) such as CLC, CWG, NCO, and DSM, which offload tasks from the CPU and enable autonomous hardware operation.
Key differentiating features include Peripheral Pin Select (PPS) that remaps digital peripheral functions to user-selected I/O pins, reducing board-level routing constraints; a 10-bit ADC with Computation (ADC2) automating averaging, threshold detection, and oversampling; a Zero-Cross Detect (ZCD) module for AC line sensing; and eXtreme Low Power technology with sub-uA sleep currents suitable for battery-backed or energy-harvesting nodes. The device also includes multiple communication peripherals: UART, SPI, and I2C with address masking.
Typical applications include battery-powered sensor nodes, IoT edge devices, LED lighting controllers, low-power remote controls, capacitive-touch user interfaces, and small motor/valve controllers. Its combination of small footprint, XLP sleep modes (<1 uA typical), and PPS flexibility makes it well suited for general-purpose and consumer designs where board area and standby power are critical.
When designing with this MCU, budget sufficient decoupling (100 nF + bulk cap per VDD pin), configure PPS to avoid peripheral pin conflicts, and use the ADC2 hardware accumulator to offload CPU-intensive averaging. For low-power designs, leverage the Device Idle and Sleep modes with peripheral wake-on-interrupt rather than polling loops.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not found in the manufacturer datasheet, optimized for engineers comparing PIC16F18324-E/P against PIC16F18323, PIC16F1829, and other 14-pin 8-bit MCU candidates.
Drop-in alternatives for PIC16F18324-E/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 PIC16F18324-E/P (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Core Architecture, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18323-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.78 / Unit
View Datasheet →PIC16F18325-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1829-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.41 / Unit
View Datasheet →PIC16F18424-E/P
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1825-E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F18324-I/P
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16F18324-E/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 RISC (modified Harvard) |
| Instruction Width | 14-bit |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| SRAM | 512 bytes |
| EEPROM | 256 bytes |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 12 (of 14 pins) |
| Package | 14-pin PDIP (through-hole) |
| Operating Temperature Range | -40 C to +125 C (E suffix, extended) |
| ADC | 10-bit, with Computation (ADC2) |
| Communication Peripherals | UART, SPI, I2C (with address masking) |
| Special Features | Peripheral Pin Select (PPS), eXtreme Low Power (XLP), Functional Safety (FuSa) |
| Core Independent Peripherals | CLC, CWG, NCO, DSM, ZCD |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant |
PIC16F18324-E/P Pin Configuration
| Pin 1 | RA3/MCLR/VPP — General-purpose I/O; Master Clear (reset) input; programming voltage input |
| Pin 2 | RA0 — General-purpose I/O; analog input; PPS-remappable peripheral |
| Pin 3 | RA1 — General-purpose I/O; analog input; PPS-remappable peripheral |
| Pin 4 | RA2 — General-purpose I/O; analog input; PPS-remappable peripheral |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RC0 — General-purpose I/O; PPS-remappable peripheral |
| Pin 7 | RC1 — General-purpose I/O; PPS-remappable peripheral |
| Pin 8 | RC2 — General-purpose I/O; PPS-remappable peripheral |
| Pin 9 | RC3 — General-purpose I/O; PPS-remappable peripheral |
| Pin 10 | RC4 — General-purpose I/O; PPS-remappable peripheral |
| Pin 11 | RC5 — General-purpose I/O; PPS-remappable peripheral |
| Pin 12 | RA4 — General-purpose I/O; analog input; PPS-remappable peripheral |
| Pin 13 | RA5 — General-purpose I/O; analog input; PPS-remappable peripheral |
| Pin 14 | VDD — Positive supply voltage (2.3V to 5.5V) |
Typical Applications
PIC16F18324-E/P is suitable for 7 applications: Battery-Powered IoT Sensor Node, Capacitive-Touch User Interface Controller, LED Lighting and Signage Dimming Controller, Low-Power Wireless Remote Control, Small Motor and Valve Controller, Industrial Sensor Transmitter (4-20 mA / 0-10V), Consumer Appliance Control Board.
Battery-Powered IoT Sensor Node
The PIC16F18324-E/P fits battery-powered IoT sensor nodes because its eXtreme Low Power (XLP) modes drop below 1 uA in sleep, while the 32 MHz performance supports on-sensor processing and protocol stacks during active windows. The 7 KB Flash accommodates BLE/Zigbee binding logic and 512 bytes SRAM holds short sensor bursts. PPS lets the I2C sensor and UART radio share pins flexibly across PCB revisions. ADC2 hardware averaging reduces CPU wake-ups, extending battery life on coin-cell or lithium packs.
Recommended
Capacitive-Touch User Interface Controller
The PIC16F18324-E/P is well-suited to capacitive-touch keypads and slider controls because the integrated mTouch sensing peripheral and Core Independent Peripherals (CLC, CWG) handle touch scanning without CPU load. The 7 KB Flash stores touch patterns and debounce logic; 512 bytes SRAM buffers gestures. PPS remaps capacitive-sense channels to optimize PCB routing. XLP sleep keeps quiescent current under 5 uA between touches, ideal for white-good front panels and remote controls.
Recommended
LED Lighting and Signage Dimming Controller
The PIC16F18324-E/P drives LED lighting and signage dimming applications using its Complementary Waveform Generator (CWG) for high-resolution PWM, Zero-Cross Detect (ZCD) for AC line sync, and 10-bit ADC for current sensing. 7 KB Flash holds dimming curves and DMX/RGB protocols; 512 bytes SRAM maintains frame buffers. PPS routes PWM outputs to any I/O pin, simplifying multi-channel layouts. The 32 MHz core executes smooth fades and color mixing with negligible CPU load.
Recommended
Low-Power Wireless Remote Control
The PIC16F18324-E/P serves as the controller in low-power wireless remote controls because XLP sleep currents extend coin-cell life beyond a year while the CWG/CLC peripherals generate IR or sub-GHz OOK signals without waking the CPU. The 7 KB Flash fits button maps, pairing codes, and protocol stacks; PPS reassigns SPI/UART pins when migrating between 2.4 GHz and sub-GHz radios. The 14-pin PDIP package supports hand-soldered prototyping and through-hole field replacement.
Recommended
Small Motor and Valve Controller
The PIC16F18324-E/P controls small DC motors, stepper valves, and solenoids in appliances and HVAC dampers because the CWG and CCP modules generate complementary PWM with dead-band control, while the ADC samples current for closed-loop regulation. Flash holds PID coefficients and fault-recovery routines; SRAM maintains waveform state. PPS remaps PWM outputs to optimize PCB routing around the H-bridge. Operating from -40C to +125C, the E-suffix grade handles under-hood and outdoor enclosures.
Recommended
Industrial Sensor Transmitter (4-20 mA / 0-10V)
The PIC16F18324-E/P fits industrial 4-20 mA and 0-10V sensor transmitters because the 10-bit ADC2 with hardware oversampling achieves effective >12-bit resolution for pressure, flow, and level transmitters. The 2.3V-5.5V range allows direct regulation from 24V loops via simple Zener shunts. 7 KB Flash holds linearization tables for RTD/thermocouple curves; PPS maps UART to isolated RS-485 transceivers. The -40C to +125C operating range meets industrial sensor environment requirements.
Recommended
Consumer Appliance Control Board
The PIC16F18324-E/P serves as the main MCU on consumer appliance control boards (coffee makers, blenders, air purifiers) because the CWG generates zero-cross triac timing, ADC2 monitors temperature sensors, and I2C interfaces to displays and keypads. Flash holds user-mode state machines; SRAM caches timing events. PPS reassigns peripherals to match different board variants, reducing the need for multiple SKUs. The 14-pin PDIP package supports through-hole hand-assembly for low-volume SKUs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18324-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18323-E/P | PIC16F18325-E/P | PIC16F1829-E/P | PIC16F18424-E/P |
|---|---|---|---|---|---|
| Package | 14-pin PDIP | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 3.5 KB | 14 KB | 14 KB | 7 KB |
| SRAM | 512 B | 256 B | 1 KB | 1 KB | 512 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 5.5 V | 2.3 V to 5.5 V |
| PPS (Peripheral Pin Select) | Yes | Yes | Yes | No | Yes |
| Core Independent Peripherals | CLC, CWG, NCO, DSM, ZCD | CLC, CWG, NCO, DSM, ZCD | CLC, CWG, NCO, DSM, ZCD | Limited CLC only | Enhanced CIP set |
Key Differentiators
- Modern Core Independent Peripherals (CLC, CWG, NCO, DSM, ZCD) vs older-gen PIC16F1829 (vs PIC16F1829-E/P)
- Larger Flash/SRAM than PIC16F18323 in same package (vs PIC16F18323-E/P)
- Peripheral Pin Select (PPS) flexibility unavailable on PIC16F1829 (vs PIC16F1829-E/P)
- Functional Safety (FuSa) design support (vs PIC16F1829-E/P)
Design Notes
For low-power designs, leverage the PIC16F18324's eXtreme Low Power (XLP) Sleep mode with peripheral wake-on-interrupt rather than CPU polling loops. Use the ADC2 hardware accumulator to average multiple conversions and trigger an interrupt only after a complete burst, reducing CPU wake frequency. Estimated: at 3.0V VDD and 32 kHz WDT clock, Sleep current is sub-uA per Microchip datasheet - verify on the bench for your specific firmware configuration and peripheral enable state.
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 14) and add a bulk capacitor (1 uF to 10 uF ceramic) at the supply entry point. Per Microchip hardware design guidelines, keep digital and analog grounds separated and join them at a single point near the MCU ground pin (pin 5). For ICSP programming, expose ICSPCLK/ICSPDAT (typically on RA0/RA1 via PPS) to a programming header so firmware can be updated without desoldering the device.
PPS remapping must be configured and unlocked via CFGCON before each peripheral is enabled; forgetting the unlock sequence locks the device into the default pin map. Do not exceed 5.5V on VDD or apply voltage to any I/O before VDD ramps. The MCLR pin (RA3) is shared with VPP programming voltage - if unused as reset, leave it tied to VDD through a 10 kohm pull-up to avoid spurious resets from noise. Always verify configuration bits in code (.PIC configuration settings) match the intended oscillator, WDT, and code-protect state before programming.
Route the ICSP clock and data lines away from switching signals and high-current traces to prevent programming failures and EMI-induced code corruption. If using PPS to map UART/SPI to non-default pins, document the remapping in code comments and verify against the PIC16(L)F18324/18344 datasheet pin allocation table before PCB layout finalization. For noise-sensitive analog measurements, dedicate one analog supply pin decoupling pair and avoid running digital return currents near analog input traces.
Compliance Information
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified (industrial-grade E suffix = -40C to +125C). Halogen-free status not explicitly stated in verified data.
