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Microchip Technology FBP-PIC12F157X-ISO26262
- Part No.:
- FBP-PIC12F157X-ISO26262
- Manufacturer:
- Microchip Technology
- Category:
- Software, Services
- Package:
- Datasheet:
-
FBP-PIC12F157X-ISO26262.pdf
- Description:
- ISO 26262 FUNCTIONAL SAFETY BASI
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Product details
Overview
FBP-PIC12F157X-ISO26262 from Microchip Technology is an 8-pin, 8-bit Flash microcontroller designed for functional safety-critical automotive and industrial control applications requiring ASIL-B compliance per ISO 26262. It integrates three independent 16-bit PWMs, a 10-bit ADC with four channels, a 5-bit DAC, one comparator, EUSART supporting LIN, and Complementary Waveform Generator (CWG) - all operating across -40°C to +125°C at 2.3V–5.5V supply.
For engineers reviewing the FBP-PIC12F157X-ISO26262 datasheet, FBP-PIC12F157X-ISO26262 pinout, FBP-PIC12F157X-ISO26262 application, or FBP-PIC12F157X-ISO26262 equivalent, this device serves as a certified MCU for motor phase control, LED driver feedback loops, power supply regulation, and LIN-based sensor nodes where deterministic timing, high-resolution PWM, and fault-aware peripherals are required.
Technical Context
The FBP-PIC12F157X-ISO26262 implements an enhanced mid-range 8-bit RISC core with 49 instructions, 16-level hardware stack, automatic interrupt context saving, and fail-safe clock monitor. Its peripheral set includes three 16-bit PWM modules with independent timers, each supporting edge-aligned/center-aligned modes, programmable dead-time via CWG, and interrupt generation on period/duty/phase match.
It features integrated analog resources: 10-bit ADC with conversion during Sleep, rail-to-rail 5-bit DAC, comparator with software hysteresis and Timer1 synchronization, and fixed voltage reference (1.024V/2.048V/4.096V). The EUSART supports LIN 2.2A physical layer timing and auto-baud detection for robust serial communication in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced mid-range 8-bit RISC CPU with 49 instructions and 125 ns min instruction cycle at 32 MHz |
| Flash Memory | Up to 2 Kwords (3.5 KB) program memory with 100k erase/write cycles in HEF section |
| PWM Resolution | Three independent 16-bit PWMs with user-configurable phase, duty, period, offset, and polarity |
| ADC | 10-bit SAR ADC with up to 4 external input channels and Sleep-mode conversion capability |
| DAC | 5-bit rail-to-rail unbuffered DAC with internal connection to ADC/comparator inputs |
| Operating Voltage | 2.3V to 5.5V supply range enabling direct interface with 3.3V/5V logic and sensors |
| Temperature Range | -40°C to +125°C extended grade suitable for under-hood automotive and industrial environments |
Pinout & Package
FBP-PIC12F157X-ISO26262 is available in 8-pin PDIP, SOIC, MSOP, DFN, and UDFN packages. All variants share identical pin allocation and electrical characteristics per DS40001723D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RA0 / ICSPDAT | ICSP data I/O, ADC channel 0, DAC output, PWM2, CWG1B | Primary debug/data pin; enables in-circuit programming without external circuitry |
| RA1 / ICSPCLK | ICSP clock, ADC channel 1, VREF+, PWM1, RX/DT | Shared programming clock and LIN receive line; supports synchronous/asynchronous EUSART |
| RA2 | ADC channel 2, comparator output, T0CKI, PWM3, INT | Interrupt-capable I/O with timer input and analog output routing for closed-loop sensing |
| RA3 / MCLR | Master Clear reset, programming voltage (VPP), Timer1 gate | Hardware reset with internal pull-up; supports low-voltage programming and fault-triggered shutdown |
| RA4 | ADC channel 3, PWM2, TX/CK, CWG1B, CLKOUT | Dual-function output: LIN transmit and system clock monitoring via FOSC/4 output |
| RA5 | Timer1 clock input, RX/DT, PWM1, CWG1A, CLKIN | External clock source input or LIN receive; supports EC mode and precise timing synchronization |
| VDD | Positive supply | Power rail for all digital and analog blocks; decoupling required per Microchip layout guidelines |
| VSS | Ground reference | Common return path for analog and digital domains; separation recommended for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Ready Architecture | Includes fail-safe clock monitor, POR/PWRT/LPBOR, WDT up to 256 s, and diagnostic firmware support per ISO 26262 Part 5 Annex D |
| XLP Power Management | 20 nA Sleep current @ 1.8V and 30 µA/MHz active current enable battery-powered and energy-constrained designs |
| CWG Dead-Time Control | Rising/falling edge dead-band generation with multiple signal sources prevents shoot-through in half-bridge motor drivers |
| Configurable EUSART | LIN-compliant UART with auto-baud detection, break detection, and sync field handling for automotive network integration |
| High-Endurance Flash (HEF) | 128 bytes of flash memory rated for 100k erase/write cycles for storing calibration data or runtime configuration |
Applications
| Automotive LED Headlamp Control | Brushless DC Motor Phase Driver |
|---|---|
|
Use Scenario: Precise dimming and fault-tolerant thermal management of adaptive front-lighting systems. IC Role / Device Role / Timing Role: Primary controller generating synchronized 16-bit PWMs for LED current regulation and monitoring temperature via ADC channel with comparator hysteresis. Use Value: Enables ASIL-B compliant brightness control with <1% duty cycle resolution and real-time overtemperature shutdown using CWG fault input and RA2 interrupt. |
Use Scenario: Closed-loop commutation sequencing for 3-phase BLDC motors in HVAC actuators and power steering assist. IC Role / Device Role / Timing Role: Dedicated motor control MCU providing complementary PWM outputs (PWM1–PWM3), dead-time insertion via CWG, and Hall sensor input capture via IOC pins. Use Value: Delivers deterministic 16-bit timing for phase alignment and supports LIN diagnostics via EUSART for OEM service access. |
| Industrial Switch-Mode Power Supply | Automotive LIN Sensor Node |
|
Use Scenario: Digital regulation of isolated DC-DC converters with adaptive voltage/current feedback. IC Role / Device Role / Timing Role: Feedback controller sampling output voltage/current via 10-bit ADC, computing error in firmware, and adjusting PWM duty cycle with 16-bit precision. Use Value: Achieves <±0.5% output regulation stability using internal 2.048V FVR as ADC reference and DAC for bias injection into error amplifier. |
Use Scenario: Low-cost, safety-conscious pressure/temperature sensor node communicating over LIN bus in brake or coolant systems. IC Role / Device Role / Timing Role: Sensor interface MCU converting analog signals via ADC, applying linearization in firmware, and transmitting data via LIN-compliant EUSART. Use Value: Meets ASIL-B requirements through built-in clock failure detection, WDT supervision, and diagnostic test routines validated per ISO 26262 tool qualification records. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PIC16F15313 | 14-pin, 4.5 KB Flash, no CWG, only two 16-bit PWMs, lacks LIN EUSART but adds CLC and NCO | Suitable for non-LIN motor control or general-purpose timing; not certified for ISO 26262 | Select when higher Flash and logic flexibility are needed without LIN or CWG requirements |
| RL78/F12 | 16-bit core, 32 KB Flash, CAN + LIN, 10-bit ADC × 12 ch, but larger 32-pin QFP package and higher BOM cost | Targeted at multi-sensor gateway nodes requiring CAN backbone integration | Choose when system architecture requires dual-bus (CAN+LIN) connectivity and >8 I/O |
Compared with PIC16F15313 and RL78/F12, FBP-PIC12F157X-ISO26262 delivers optimal balance of ASIL-B certification, compact 8-pin footprint, integrated CWG for motor drive safety, and LIN-ready EUSART - making it uniquely suited for space-constrained, single-node automotive control functions.
Availability
FBP-PIC12F157X-ISO26262 is available at Aetrix Electronics and suitable for automotive lighting control, BLDC motor phase sequencing, and LIN sensor node designs requiring stable component supply, long-term lifecycle assurance, and functional safety documentation support.
Supply support for FBP-PIC12F157X-ISO26262 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, FPGA, and mixed-signal solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The PIC12F157X family was developed specifically for cost-sensitive, safety-aware automotive and industrial applications demanding high-resolution PWM, integrated analog, and ISO 26262-ready features in minimal pin count.
FAQ
What safety certifications does FBP-PIC12F157X-ISO26262 hold?
FBP-PIC12F157X-ISO26262 is qualified to ISO 26262:2018 Part 5 Annex D for ASIL-B development processes. It includes hardware safety mechanisms such as fail-safe clock monitor, configurable WDT, POR/PWRT/LPBOR, and diagnostic firmware libraries. Full certification documentation-including FMEDA reports, safety manual, and tool qualification records-is available under NDA from Microchip.
Does FBP-PIC12F157X-ISO26262 support LIN 2.2A physical layer compliance?
Yes, FBP-PIC12F157X-ISO26262's EUSART peripheral meets LIN 2.2A physical layer timing specifications including sync field detection, break field generation, and auto-baud recovery. Its internal oscillator accuracy (±1% factory-calibrated) satisfies LIN master node jitter requirements when used with appropriate external RC network.
Can FBP-PIC12F157X-ISO26262 generate complementary PWM outputs with programmable dead time?
Yes, FBP-PIC12F157X-ISO26262 integrates a Complementary Waveform Generator (CWG) that accepts inputs from PWM1–PWM3 and generates complementary outputs (CWG1A/CWG1B) with independently adjustable rising/falling edge dead-band delays. This enables safe driving of half-bridge topologies without external logic.
What is the maximum ADC sampling rate achievable with FBP-PIC12F157X-ISO26262?
FBP-PIC12F157X-ISO26262 achieves up to 1 MSPS effective sampling rate using its 10-bit ADC with internal FRC oscillator. Conversion time is 12 TAD cycles minimum; with TAD = 1 µs (FRC = 1 MHz), full conversion completes in 12 µs. Multiple channels can be scanned in sequence with automatic channel selection and interrupt-on-complete.
Is high-endurance flash memory accessible as data EEPROM in FBP-PIC12F157X-ISO26262?
Yes, FBP-PIC12F157X-ISO26262 provides 128 bytes of High-Endurance Flash (HEF) memory mapped at 0780h–07FFh (for PIC12F1572 variant). It supports 100,000 erase/write cycles and is accessed via standard Flash programming routines - serving as nonvolatile storage for calibration coefficients, runtime parameters, or fault logs in safety-critical applications.
FBP-PIC12F157X-ISO26262 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Electronic Delivery
- Product Status:
- Active
- Type:
- -
- Applications:
- -
- Edition:
- -
- License Length:
- -
- License - User Details:
- -
- Operating System:
- -
- For Use With/Related Products:
- -
- Media Delivery Type:
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FBP-PIC12F157X-ISO26262 FAQ
1.How can I place an order for FBP-PIC12F157X-ISO26262 through Aetrix?
Please submit a Request for Quotation (RFQ) for FBP-PIC12F157X-ISO26262 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 FBP-PIC12F157X-ISO26262 reliable?
The price and inventory of FBP-PIC12F157X-ISO26262 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FBP-PIC12F157X-ISO26262 is usually 5 days.
3.What payment methods are accepted for FBP-PIC12F157X-ISO26262?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FBP-PIC12F157X-ISO26262 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FBP-PIC12F157X-ISO26262?
FBP-PIC12F157X-ISO26262 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FBP-PIC12F157X-ISO26262 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 FBP-PIC12F157X-ISO26262?
For technical support, including FBP-PIC12F157X-ISO26262 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FBP-PIC12F157X-ISO26262 requirements.
6.How does Aetrix verify that FBP-PIC12F157X-ISO26262 is sourced from the original manufacturer or authorized distributors?
All FBP-PIC12F157X-ISO26262 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 FBP-PIC12F157X-ISO26262 meets industry standards.
7.What is the process for return or replacement of FBP-PIC12F157X-ISO26262?
All FBP-PIC12F157X-ISO26262 units undergo pre-shipment inspection (PSI). If there is an issue with FBP-PIC12F157X-ISO26262, 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 FBP-PIC12F157X-ISO26262 part is unused and in its original packaging.
Return procedure for FBP-PIC12F157X-ISO26262:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FBP-PIC12F157X-ISO26262 Tags
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