Microchip Technology PIC16F18324-E/ST
- Part No.:
- PIC16F18324-E/ST
- Manufacturer:
- Microchip Technology
- Category:
- Microcontrollers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
PIC16F18324-E/ST.pdf
- Description:
- IC MCU 8BIT 7KB FLASH 14TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PIC16F18324-E/ST from Microchip Technology is a 14-pin, eXtreme Low Power (XLP) 8-bit microcontroller with 7 KB Flash, 512 B SRAM, and 256 B EEPROM. It integrates 10-bit ADC (11 channels), dual comparators, 5-bit DAC, four CCP modules, two CWGs, four CLCs, NCO, DSM, EUSART, and MSSP (SPI/I²C). It operates from 2.3V–5.5V at -40°C to +85°C and targets battery-powered sensor nodes and low-power industrial controls.
For engineers reviewing the PIC16F18324-E/ST datasheet, PIC16F18324-E/ST pinout, PIC16F18324-E/ST application, or PIC16F18324-E/ST equivalent, key selection criteria include its 14-pin TSSOP package, Peripheral Pin Select (PPS) flexibility, 40 nA sleep current, integrated analog peripherals, and XLP-optimized power modes for energy-constrained embedded designs.
Technical Context
The PIC16F18324-E/ST implements an enhanced mid-range RISC CPU with 48 instructions and a 16-level hardware stack, supporting DC–32 MHz operation (125 ns instruction cycle). Its core-independent peripherals-including four CLCs for combinational/sequential logic, two CWGs with dead-band control, and NCO with 0.0001% frequency step resolution-enable autonomous signal generation without CPU intervention.
Power management includes IDLE, DOZE, and SLEEP modes plus Peripheral Module Disable (PMD); analog subsystem features 10-bit ADC with Sleep conversion, fixed voltage reference (1.024/2.048/4.096 V), and rail-to-rail 5-bit DAC. All digital I/Os support programmable pull-ups, slew rate control, and interrupt-on-change with edge select.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced mid-range 8-bit RISC with 48 instructions and 16-level hardware stack |
| Flash Memory | 7 KB program memory enabling complex firmware with bootloader space |
| SRAM / EEPROM | 512 B data RAM for runtime variables; 256 B EEPROM for nonvolatile configuration storage |
| ADC | 10-bit SAR ADC with 11 external input channels and conversion during Sleep mode |
| Operating Voltage | 2.3V–5.5V supply range compatible with standard logic and battery systems |
| Sleep Current | 40 nA typical at 1.8V enables multi-year battery life in ultra-low-power applications |
| Package | 14-pin TSSOP (3.0 × 4.4 mm) with exposed pad option for thermal performance |
| Temperature Range | Industrial grade: -40°C to +85°C for reliable operation in harsh environments |
Pinout & Package
The PIC16F18324-E/ST is housed in a 14-pin TSSOP package (3.0 × 4.4 mm, 0.65 mm pitch) with exposed thermal pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RA0/ICSPDAT | Program Data I/O | Primary ICSP™ programming/data pin; also serves as ADC channel ANA0 and DAC output |
| RA1/ICSPCLK | Program Clock I/O | ICSP™ clock input; also functions as ADC ANA1, comparator inputs, and DAC reference |
| RA2 | General-Purpose I/O | Supports TMR0 clock input, CCP3, CWG1/2 inputs, and external interrupt INT |
| RA3/MCLR/VPP | Reset & Programming | Active-low master clear with internal pull-up; accepts high-voltage VPP for programming |
| RA4/OSC2 | Oscillator Output | Drives crystal/resonator in HS/XT/LP modes; also provides CLKOUT (FOSC/4) and TMR1 gate |
| RA5/OSC1 | Oscillator Input | Crystal/resonator input; supports external clock up to 32 MHz or SOSC input at 32 kHz |
| RC0–RC5 | Multi-Function I/O | Each supports ADC, comparator, timer, CCP, MSSP (SPI/I²C), CLC, and PPS remapping |
| VDD / VSS | Power Supply | Single 2.3–5.5V supply pair; decoupling required near VDD pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Peripheral Pin Select (PPS) | Full remapping of digital peripheral inputs/outputs across all I/O pins for PCB layout optimization |
| Configurable Logic Cells (CLC) | Four independent CLCs implement combinational logic (AND/OR/XOR) and sequential logic (latches, flip-flops) without CPU load |
| Complementary Waveform Generator (CWG) | Two CWGs provide hardware-controlled half-bridge/full-bridge drive with programmable dead-band timing |
| Numerically Controlled Oscillator (NCO) | Generates precise linear-frequency waveforms with 0.0001% step resolution and sub-Hz tuning capability |
| eXtreme Low Power (XLP) | 40 nA sleep current, 250 nA WDT, and PMD enable dynamic peripheral power gating for minimal active/idle power |
| Analog Integration | 10-bit ADC with 11 channels, dual comparators with internal references, and rail-to-rail 5-bit DAC simplify sensor interface design |
Applications
| Smart Sensor Node | Industrial Control Panel |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway every 5 minutes. IC Role / Device Role / Timing Role: Primary controller managing ADC sampling, NCO-driven timing, EUSART transmission, and ultra-low-power sleep/wake cycles. Use Value: 40 nA sleep current extends coin-cell battery life beyond 5 years; PPS allows flexible routing of UART and ADC signals on compact PCB. | Use Scenario: Front-panel controller for HVAC system with push-button inputs, LED indicators, and analog sensor monitoring. IC Role / Device Role / Timing Role: System supervisor handling button interrupts, driving LEDs via PWM, reading thermistor via ADC, and communicating with main MCU over I²C. Use Value: Integrated 5-bit DAC generates reference voltages for analog sensors; CLCs implement debounce logic and status sequencing without firmware overhead. |
| Motor Drive Interface | Portable Medical Device |
Use Scenario: Brushless DC motor commutation control in cordless power tools using hall-effect feedback. IC Role / Device Role / Timing Role: Dedicated waveform generator coordinating CWG outputs, CCP timers, and dead-band timing for gate drivers. Use Value: Hardware CWG eliminates CPU-intensive PWM synchronization; dual CWGs support full-bridge drive with independent dead-band control per leg. | Use Scenario: Glucose meter with electrochemical sensor, LCD display, and USB charging detection. IC Role / Device Role / Timing Role: Analog front-end manager acquiring sensor current via ADC, generating bias voltage with DAC, and detecting charger presence via comparator. Use Value: Dual comparators with internal 1.024 V reference enable precise battery/charger threshold detection; 10-bit ADC resolves µA-level sensor currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PIC16F18323-E/ST | 3.5 KB Flash, 256 B SRAM, 12 I/O, same 14-pin TSSOP package | Limited memory and peripheral count; suitable for simpler sensor readout only | Select when firmware size < 3 KB and no CWG/NCO/DSM required |
| PIC16F18344-I/ST | 20-pin TSSOP, 7 KB Flash, 18 I/O, adds PORTB and 6 additional ADC channels | Higher I/O count and expanded analog capability for multi-sensor systems | Choose when >12 I/O or >11 ADC channels are needed; same core/peripherals |
Compared with PIC16F18323-E/ST, the PIC16F18324-E/ST doubles Flash/SRAM and adds CWG/NCO/DSM; versus PIC16F18344-I/ST, it trades I/O and ADC channels for smaller footprint and lower cost in space-constrained designs.
Availability
PIC16F18324-E/ST is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMI panels, and portable medical devices requiring stable component supply and long-term manufacturability.
Supply support for PIC16F18324-E/ST includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontrollers, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets since 1989.
The PIC16F183xx family delivers eXtreme Low Power (XLP) performance with core-independent peripherals for battery-operated and energy-harvesting applications where firmware autonomy and minimal active power are critical.
FAQ
What is the maximum operating frequency of the PIC16F18324-E/ST?
The PIC16F18324-E/ST supports a maximum clock input of 32 MHz, delivering a 125 ns minimum instruction cycle time. Its internal oscillator is factory-calibrated to ±2% at 4 MHz, and optional 4× PLL enables higher-frequency operation when driven by external sources. This frequency capability applies directly to the PIC16F18324-E/ST across its full 2.3V–5.5V operating range.
Does the PIC16F18324-E/ST support in-circuit programming and debugging?
Yes, the PIC16F18324-E/ST supports full In-Circuit Serial Programming™ (ICSP™) via RA0/ICSPDAT and RA1/ICSPCLK pins, and in-circuit debugging using the same two-pin interface. No additional debug header or dedicated debug port is required. This capability is fully implemented in the PIC16F18324-E/ST silicon and documented in Section 33.0 of its datasheet.
Can the PIC16F18324-E/ST perform ADC conversions while in Sleep mode?
Yes, the PIC16F18324-E/ST supports ADC conversions during Sleep mode using the internal FVR or external reference. The ADC module can be triggered autonomously by timer or peripheral events, allowing wake-up on threshold crossing without CPU involvement. This feature is explicitly enabled and verified for the PIC16F18324-E/ST in DS40001800E Section 22.0.
What communication interfaces are integrated into the PIC16F18324-E/ST?
The PIC16F18324-E/ST integrates EUSART (RS-232/RS-485/LIN compatible), Master Synchronous Serial Port (MSSP) supporting SPI and I²C/SMBus/PMBus™, and configurable CLC-based logic for custom protocols. All interfaces support Peripheral Pin Select (PPS) for flexible pin assignment. These capabilities are confirmed for the PIC16F18324-E/ST in Table 1-1 and Sections 30–31 of DS40001800E.
Is the PIC16F18324-E/ST pin-compatible with other devices in the PIC16F183xx family?
The PIC16F18324-E/ST shares identical pinout and electrical characteristics with PIC16F18323-E/ST in the 14-pin TSSOP package, enabling direct substitution where memory/peripheral requirements align. However, it is not pin-compatible with 20-pin variants like PIC16F18344 due to differing pin counts and PORTB inclusion. This compatibility is defined in DS40001800E Figures 1 and Table 1-2 for the PIC16F18324-E/ST.
PIC16F18324-E/ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- PIC® XLP™ 16F, Functional Safety (FuSa)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- PIC
- Core Size:
- 8-Bit
- Speed:
- 32MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 7KB (4K x 14)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.3V ~ 5.5V
- Data Converters:
- A/D 11x10b; D/A 1x5b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
PIC16F18324-E/ST FAQ
1.How can I place an order for PIC16F18324-E/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for PIC16F18324-E/ST on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PIC16F18324-E/ST reliable?
The price and inventory of PIC16F18324-E/ST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PIC16F18324-E/ST is usually 5 days.
3.What payment methods are accepted for PIC16F18324-E/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PIC16F18324-E/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PIC16F18324-E/ST?
PIC16F18324-E/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PIC16F18324-E/ST order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PIC16F18324-E/ST?
For technical support, including PIC16F18324-E/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PIC16F18324-E/ST requirements.
6.How does Aetrix verify that PIC16F18324-E/ST is sourced from the original manufacturer or authorized distributors?
All PIC16F18324-E/ST products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PIC16F18324-E/ST meets industry standards.
7.What is the process for return or replacement of PIC16F18324-E/ST?
All PIC16F18324-E/ST units undergo pre-shipment inspection (PSI). If there is an issue with PIC16F18324-E/ST, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PIC16F18324-E/ST part is unused and in its original packaging.
Return procedure for PIC16F18324-E/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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