PIC16F15243T-I/REB - 8-bit MCU, 3.5KB Flash, 32MHz, 20-VQFN | Microchip
MPN: PIC16F15243T-I/REB ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.92 | $0.92 |
| 10 | $0.85 | $8.50 |
| 100 | $0.78 | $78.00 |
| 500 | $0.72 | $360.00 |
| 1,000 | $0.66 | $660.00 |
PIC16F15243T-I/REB Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, memory (Flash/RAM), and peripherals on a single die. PIC microcontrollers sit within the broader hierarchy of embedded microcontrollers -> microcontrollers -> microprocessors/memory ICs -> integrated circuits -> semiconductors, and are widely used in cost-optimized embedded designs due to their deterministic instruction set and rich peripheral integration.
Key features of the PIC16F15243 include Functional Safety (FuSa) support, Core Independent Peripherals (CIPs) for offloading CPU tasks, intelligent analog peripherals, and standard communication modules. The 32MHz operation delivers 8 MIPS instruction throughput, and the XLP Sleep mode enables nanoWatt sleep currents suitable for battery-powered sensor nodes. The 20-VQFN package supports compact board layouts in space-constrained IoT products.
Architecturally, the PIC16F15243 uses Microchip's enhanced mid-range core with a 14-bit instruction word, hardware multiplier, and interrupt-driven peripheral integration. The device operates from 1.8V to 5.5V and includes fail-safe clock monitoring for functional safety compliance. PPS allows flexible pin-to-peripheral mapping, simplifying PCB routing and BOM reuse across multiple SKUs in a product family.
Typical applications include IoT sensor nodes, home appliance control, LED lighting controllers, battery-powered instruments, and industrial sensor interfaces. The integrated 10-bit ADC and PWM modules also suit closed-loop control tasks such as motor speed control and temperature regulation. When designing with this MCU, ensure the ICSP programming pins are accessible for in-circuit firmware updates, and route the VQFN exposed pad to a continuous ground copper pour for thermal dissipation and EMI performance.
This page synthesizes distributor pricing, drop-in alternatives from the PIC16F152xx family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F15243T-I/REB — 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 PIC16F15243T-I/REB (same form factor and footprint) — differing in Package, Core Architecture, ADC, Program Memory (Flash), I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F15243-I/REB
✅ Drop-In✓ In Stock
$0.76 / Unit
View Datasheet →PIC16F15213T-I/MF
✅ Drop-In✓ In Stock
$0.58 / Unit
View Datasheet →PIC16F15214-I/P
✅ Drop-In✓ In Stock
$0.76 / Unit
View Datasheet →PIC16F15223T-I/ST
✅ Drop-In✓ In Stock
$0.56 / Unit
View Datasheet →PIC16F15224-I/ST
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16F15243T-I/REB Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit (Enhanced Mid-Range) |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data RAM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Instruction Throughput | 8 MIPS |
| ADC | 10-bit |
| PWM Modules | 2 |
| CCP Modules | 2 |
| Communication | EUSART, SPI, I2C |
| Operating Voltage | 1.8 V to 5.5 V |
| Hardware Limit Timer (HLT) | Yes |
| Watchdog Timer (WDT) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Low-Power Mode | XLP Sleep Mode (nanoWatt) |
| Package | 20-pin VQFN (3x3 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Functional Safety (FuSa) | Supported |
PIC16F15243T-I/REB Pin Configuration
| Pin 1 | RA5 — I/O port A bit 5 / ICSPCLK |
| Pin 2 | RA4 — I/O port A bit 4 |
| Pin 3 | RA3 — I/O port A bit 3 / MCLR |
| Pin 4 | RA2 — I/O port A bit 2 |
| Pin 5 | RA1 — I/O port A bit 1 / ICSPDAT |
| Pin 6 | RA0 — I/O port A bit 0 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pin 9 | RB7 — I/O port B bit 7 / PPS |
| Pin 10 | RB6 — I/O port B bit 6 / PPS |
| Pin 11 | RB5 — I/O port B bit 5 / PPS / ADC |
| Pin 12 | RB4 — I/O port B bit 4 / PPS / ADC |
| Pin 13 | RB3 — I/O port B bit 3 / PPS / ADC |
| Pin 14 | RB2 — I/O port B bit 2 / PPS / ADC |
| Pin 15 | RB1 — I/O port B bit 1 / PPS / ADC |
| Pin 16 | RB0 — I/O port B bit 0 / PPS / ADC |
| Pin 17 | RC7 — I/O port C bit 7 / EUSART |
| Pin 18 | RC6 — I/O port C bit 6 / EUSART |
| Pin 19 | RC5 — I/O port C bit 5 / PWM |
| Pin 20 | RC4 — I/O port C bit 4 / PWM |
| Pin EP | EP — Exposed thermal pad - connect to VSS |
Typical Applications
PIC16F15243T-I/REB is suitable for 6 applications: IoT Wireless Sensor Node, Home Appliance Control Board, LED Lighting Controller, Battery-Powered Medical Sensor, Industrial Sensor Interface, Automotive Body Electronics.
IoT Wireless Sensor Node
The PIC16F15243T-I/REB's XLP Sleep mode with nanoWatt currents and 32 MHz CPU speed (8 MIPS) enable multi-year battery life in wireless sensor nodes. Its 10-bit ADC directly digitizes sensor signals while the integrated EUSART/SPI/I2C peripherals connect to common ISM-band radios. The compact 20-VQFN (3x3 mm) package leaves room for the radio module and coin-cell battery. PPS routes peripheral signals to any GPIO, simplifying PCB layout. Cost-optimized for high-volume sensor deployments where the MCU is a small fraction of the BOM.
Recommended
Home Appliance Control Board
The PIC16F15243T-I/REB is well suited for washing machines, dishwashers, and small kitchen appliances where its 10-bit ADC reads temperature and water level sensors, while two PWM channels drive motor or valve actuators. Two CCP modules handle timer-critical control loops. The 1.8V-5.5V operating range supports 3.3V and 5V designs. Functional Safety (FuSa) features help meet IEC 60730 household appliance safety requirements, reducing external component count and BOM.
Recommended
LED Lighting Controller
The PIC16F15243T-I/REB drives multi-channel LED lighting with its two PWM modules and 10-bit ADC for color-mixing feedback. The 32 MHz core computes dimming curves in real time while CCP modules handle synchronized lighting transitions. SPI/I2C connects to LED driver ICs, and EUSART provides DMX or DALI interfaces. The small VQFN-20 footprint fits inside compact MR16 or linear LED fixtures, and XLP Sleep mode keeps standby power below regulatory limits for ENERGY STAR compliance.
Recommended
Battery-Powered Medical Sensor
The PIC16F15243T-I/REB's nanoWatt Sleep mode and 1.8V minimum supply support multi-year battery life in portable medical devices such as pulse oximeters, glucometers, and wearable patches. The 10-bit ADC reads sensor analog signals while the integrated DSP-free MCU keeps BOM cost low. Functional Safety (FuSa) features assist IEC 60601 compliance for medical electrical equipment. The 20-VQFN package fits inside miniature enclosures, leaving room for the battery and sensor optics.
Recommended
Industrial Sensor Interface
The PIC16F15243T-I/REB translates 4-20 mA industrial sensor signals, thermistors, and bridge sensors via its 10-bit ADC, then formats the data over RS-485 (EUSART) or SPI for PLC or SCADA systems. PPS allows flexible pin mapping for different connector pinouts, simplifying board variants. The 32 MHz CPU executes linearization and averaging in real time. The 20-VQFN package suits compact DIN-rail modules, and the 1.8V-5.5V range accommodates 3.3V and 5V industrial rails.
Recommended
Automotive Body Electronics
The PIC16F15243T-I/REB handles low-speed body control functions such as interior lighting, mirror control, and seat position sensing. The 10-bit ADC reads position feedback, while PWM modules drive LED strings or small motors. The wide operating voltage (1.8V-5.5V) tolerates automotive cranking transients when paired with external protection. Peripheral Pin Select simplifies PCB routing for connector pin constraints. Note: for AEC-Q100 qualified automotive applications, use the PIC16F152xx Q-version variants explicitly listed as automotive-grade.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F15243T-I/REB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F15243-I/REB | PIC16F15213T-I/MF | PIC16F15214-I/P | PIC16F15223T-I/ST | PIC16F15224-I/ST |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-20 (3x3 mm) | VQFN-20 (3x3 mm) - same | VQFN-20 (3x3 mm) - same | VQFN-20 (3x3 mm) - same | VQFN-20 (3x3 mm) - same | VQFN-20 (3x3 mm) - same |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| XLP Sleep Mode | Yes (nanoWatt) | Yes | Yes | Yes | Yes | Yes |
| Functional Safety (FuSa) | Supported | Supported | Supported | Supported | Supported | Supported |
Key Differentiators
- Smallest-footprint PIC16F152xx device with full 3.5KB Flash and 256B RAM (vs PIC16F15243-I/REB)
- Integrated Functional Safety (FuSa) peripherals for IEC 60730 compliance (vs PIC16F15213T-I/MF)
- XLP Sleep Mode with sub-1µA standby current (vs PIC16F15223T-I/ST)
Design Notes
Place a 0.1 µF ceramic decoupling capacitor as close as possible to the VDD pin (pin 8) of the PIC16F15243T-I/REB, with a second bulk capacitor (10 µF or larger) on the same supply rail. According to Microchip's hardware design guidelines, low-impedance grounding and short PCB traces from VDD/VSS to the package are critical for stable operation of the 32 MHz internal oscillator. The exposed thermal pad (EP) must be soldered to a continuous VSS copper pour for thermal and electrical performance.
The VQFN-20 (3x3 mm) package requires careful PCB land pattern design. Per Microchip's packaging specification, the exposed thermal pad (EP) should be connected to VSS through multiple thermal vias (typically 4-9 vias) under the pad to dissipate heat and provide low-impedance ground. Maintain 0.2 mm trace width and avoid routing signals under the package to prevent noise coupling. The 20-VQFN footprint is JEDEC standard - reuse the land pattern across the PIC16F152xx family for design flexibility.
Do not exceed the absolute maximum VDD of 5.5V (or 6.0V transient). Always configure the brown-out reset (BOR) to match your supply rail. The MCLR pin (pin 3, shared with RA3) requires a 10 kΩ pull-up to VDD if used in reset mode; otherwise configure RA3 as a digital input only. Avoid leaving unused I/O pins floating - configure them as outputs or inputs with internal pull-ups. The ICSP programming pins (ICSPCLK/ICSPDAT) must be accessible for firmware updates; do not place series resistors on these lines unless required by the programmer tool.
When using the 10-bit ADC, add an external 100 nF bypass capacitor at the ADC reference input if used in absolute voltage reference configuration. For high-impedance sensor sources, enable the ADC's internal charge-sharing mode to maintain conversion accuracy. According to Microchip's datasheet, the ADC operates best with source impedances below 10 kΩ. Route analog and digital signals on separate PCB layers or with adequate ground isolation to prevent digital switching noise from coupling into the ADC input.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. The standard PIC16F15243T-I/REB is NOT AEC-Q100 qualified; for automotive applications requiring AEC-Q100, use the PIC16F152xx Q-version explicitly listed as automotive-grade. Halogen-free status not explicitly stated in provided data - marked unknown.
