PIC16F18156-I/STX

Microcontrollers Overview

The PIC16F18156-I/STX is an 8-bit microcontroller from the PIC16F181 family, featuring a TSSOP-28 package. It includes 28 KB of Program Flash Memory, 2048 bytes of Data SRAM, and 256 bytes of Data EEPROM. The device operates at speeds up to 32 MHz with an operating voltage range of 1.8V to 5.5V and supports industrial temperatures from -40°C to +85°C. Key peripherals include a 12-bit differential ADCC, two 8-bit DACs, four PWMs, two EUSARTs, two MSSPs (SPI/I2C), NCO, CWG, and four CLCs.

Microcontrollers Feature Summary

• Features a 12-bit differential Analog-to-Digital Converter with Computation (ADCC) for high-resolution sensor applications.
• Includes Core Independent Peripherals such as Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO), and Complimentary Waveform Generator (CWG).
• Supports low-power operation through Doze, Idle, and Sleep modes with Peripheral Module Disable (PMD) functionality.
• Provides flexible pin mapping via Peripheral Pin Select (PPS) and Interrupt-on-Change (IOC) capabilities.

Microcontrollers Applications

• Precision analog sensor interfaces requiring high-resolution data acquisition.
• Low-cost energy-efficient embedded control systems.
• Applications utilizing multiple communication protocols like RS-232, RS-485, or LIN.
• Waveform generation and motor control using PWM and CWG modules.

Microcontrollers Procurement Notes

Verify the ordering suffix 'I/STX' corresponds to the Industrial temperature range (-40°C to +85°C) and the TSSOP-28 package type. Confirm that the specific revision level matches your design requirements. Ensure compatibility with your programming interface, as the device supports ICSP and ICD via dedicated pins. Cross-reference the datasheet DS40002484C for exact electrical specifications and timing parameters before finalizing procurement.

Microcontrollers Selection Notes

Select this component when a balance of memory capacity and rich peripheral integration is required in a compact 28-pin form factor. The inclusion of a 12-bit differential ADC makes it suitable for precision measurement tasks compared to standard 10-bit alternatives. Consider the availability of Core Independent Peripherals if reducing CPU load for background tasks is a priority. Verify that the 1.8V to 5.5V operating voltage range aligns with your system's power supply architecture.

Microcontrollers Part Context

This device belongs to the PIC16F181 family, which offers a suite of analog peripherals designed for precision sensor applications. The family spans various pin counts and memory sizes, with the PIC16F18156 providing 28 KB of Flash and 25 I/O pins. It shares architectural similarities with other members like the PIC16F18176 but differs in pin count and peripheral allocation. The family emphasizes low power consumption and advanced waveform control features.

Microcontrollers Replacement Considerations

PIC16F18176-I/STX: Offers identical core features and memory but provides 36 I/O pins in a 40-pin package instead of 25 I/O in 28 pins. Ensure physical footprint compatibility if substituting directly on a PCB.

Microcontrollers FAQ

Does the PIC16F18156 support SMBus compatible I/O pads?

Yes, the device includes SMBus compatible I/O pads, allowing for configuration of I2C logic levels via specific registers.

What is the maximum clock frequency supported by the internal oscillator?

The High-Precision Internal Oscillator Block (HFINTOSC) supports selectable frequencies up to 32 MHz with ±2% accuracy after calibration.

Can the ADCC module operate while the device is in Sleep mode?

Yes, the Differential Analog-to-Digital Converter with Computation (ADCC) can operate in Sleep mode, enabling low-power data acquisition.