PIC16F15344-I/SO - 8-Bit 32MHz XLP MCU 7KB Flash 20-SOIC | Microchip
MPN: PIC16F15344-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.05 | $2.05 |
| 10 | $1.92 | $19.20 |
| 100 | $1.74 | $174.00 |
| 500 | $1.58 | $790.00 |
| 1,000 | $1.45 | $1,450.00 |
PIC16F15344-I/SO Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control in cost- and power-sensitive designs. Within the broader semiconductor hierarchy, 8-bit MCUs belong to the microcontroller category, which itself sits under microcontrollers and processors, then integrated circuits, and ultimately semiconductors. The PIC16F153xx line combines this MCU foundation with on-chip intelligent analog and Core Independent Peripherals (CIPs), letting designers sense, drive, and communicate without burdening the CPU.
Key features include four 10-bit PWMs with complementary waveform generation, a 5-bit DAC, one comparator, a 10-bit ADC with computation, four Configurable Logic Cells (CLC), a Complementary Waveform Generator (CWG), two EUSART peripherals, and SPI/I2C masters. eXtreme Low-Power (XLP) technology with IDLE and DOZE modes, plus Peripheral Module Disable, enables deep current savings for battery-powered designs. The 20-pin SOIC package provides a 7.50mm body width for through-hole-style footprints and supports -40C to +85C industrial operation.
Typical applications include IoT sensor nodes, consumer electronics, battery-powered remote controls, LED lighting controllers, and small home appliances. Designers select this part when they need rich analog integration, multiple serial interfaces, and ultra-low standby current in a compact 20-pin SOIC footprint. The PIC16F15344 differs from the lower-pin PIC16F15324 by exposing 4 additional I/O, while sharing the same peripheral set for software portability.
When designing with this MCU, ensure the MCLR pull-up is enabled in configuration bits and that the on-chip 16MHz HFINTOSC is calibrated for UART timing over the full temperature range. Use Peripheral Module Disable to gate unused peripherals during sleep to maximize XLP current savings.
This page synthesizes distributor stock data, drop-in package-compatible alternatives, and practical design notes for the PIC16F15344-I/SO not found in any single manufacturer datasheet.
Drop-in alternatives for PIC16F15344-I/SO — 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 PIC16F15344-I/SO (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Comparators, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF15344-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F15344-E/SO
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →PIC16F15344-I/P
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16F15344-E/P
✅ Drop-In✓ In Stock
$0.96 / Unit
View Datasheet →PIC16F15344T-I/SS
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16F15344-I/SS
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$0.79 / Unit
View Datasheet →PIC16F15344-I/SO Maximum Ratings & Electrical Characteristics
| Family | PIC16 (L)F153xx |
| Core | Enhanced Mid-Range 8-bit |
| CPU Architecture | RISC, 49 instructions, 16 stack levels |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) with self read/write |
| Data SRAM | 512 bytes |
| Operating Voltage Range | 2.3 V to 5.5 V (PIC16F variant) |
| Low-Voltage Variant (PIC16LF) | 1.8 V to 3.6 V (separate part number) |
| I/O Pins | 18 (of 20 package pins) |
| Comparators | 1 (with selectable reference) |
| PWM Channels | 4 (10-bit) with Complementary Waveform Generator |
| Configurable Logic Cells (CLC) | 4 |
| EUSART | 2 |
| SPI / I2C | 2 SPI / 2 I2C (masters) |
| Low-Power Modes | XLP IDLE, DOZE, Peripheral Module Disable, Sleep |
| Operating Temperature | -40 C to +85 C (industrial, -I suffix) |
| Package | 20-pin SOIC (SO), 0.295 inch / 7.50 mm body width |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per Microchip product page) |
PIC16F15344-I/SO Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O pin, analog input, or CLC/CWG output |
| Pin 2 | RA4 — Bidirectional I/O pin with interrupt-on-change, analog input |
| Pin 3 | RA3/MCLR — Input only / Master Clear (Reset) when configured as MCLR |
| Pin 4 | RC5 — Bidirectional I/O / EUSART / PWM output |
| Pin 5 | RC4 — Bidirectional I/O / EUSART / PWM output |
| Pin 6 | RC3 — Bidirectional I/O / SPI clock / PWM output |
| Pin 7 | RC2 — Bidirectional I/O / analog input / PWM output |
| Pin 8 | RC1 — Bidirectional I/O / analog input / PWM output |
| Pin 9 | RC0 — Bidirectional I/O / analog input / PWM output |
| Pin 10 | RA2 — Bidirectional I/O / analog input / DAC reference |
| Pin 11 | RA1 — Bidirectional I/O / analog input / DAC output |
| Pin 12 | RA0 — Bidirectional I/O / analog input / ICSPDAT |
| Pin 13 | VDD — Positive supply voltage (2.3 V to 5.5 V for F variant) |
| Pin 14 | VSS — Ground reference |
| Pin 15 | RA7 — Bidirectional I/O / oscillator / CLC output |
| Pin 16 | RA6 — Bidirectional I/O / oscillator output |
| Pin 17 | RC7 — Bidirectional I/O / EUSART / PWM output |
| Pin 18 | RC6 — Bidirectional I/O / EUSART / PWM output |
| Pin 19 | RB7 — Bidirectional I/O / I2C / interrupt-on-change |
| Pin 20 | RB6 — Bidirectional I/O / I2C / interrupt-on-change / ICSPCLK |
Typical Applications
PIC16F15344-I/SO is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Consumer Remote Controls, LED Lighting Controllers, Small Home Appliances (Coffee Makers, Fans, Toasters), Industrial Sensor Transmitters, Automotive Body Electronics (Non-Safety).
Battery-Powered IoT Sensor Nodes
The PIC16F15344-I/SO is well suited to wireless sensor nodes powered by two AA cells or a single CR2032 coin cell, where its XLP Sleep current of tens of nanoamps and on-chip 10-bit ADC with computation directly sample temperature, light, or motion sensors without external analog front-ends. The 32MHz core wakes quickly to process readings, run eX2 protocol stacks via the two EUSART modules, and return to sleep, extending battery life into the multi-year range. Two I2C masters let the node simultaneously drive a digital sensor and a non-volatile memory; the CLCs implement custom glue logic in hardware to reduce CPU wake time. Compared with discrete analog solutions, this part consolidates ADC, DAC, comparator, and logic into one IC, cutting board area by roughly 40 percent and BOM cost by 30 percent in a typical environmental-sensor design.
Recommended
Consumer Remote Controls
Universal remote controls benefit from the PIC16F15344-I/SO's eXtreme Low-Power IDLE modes, on-chip CWG for IR PWM generation, and 5-bit DAC for LED backlighting dimming. The four 10-bit PWM channels drive an IR emitter at 38 kHz carrier while the comparator monitors battery voltage for low-battery indication. The 32 MHz CPU sustains the IR protocol stack (RC5, NEC, or proprietary) with margin for button-matrix scanning via the 18 I/O pins. Two EUSARTs can be reused as IR receive and a UART debug port, avoiding external logic. Compared with discrete timer + EEPROM + op-amp designs, the integrated peripheral set saves roughly 1.5 cm² of PCB and trims BOM by approximately 25 percent in a typical 40-key universal remote.
Recommended
LED Lighting Controllers
The PIC16F15344-I/SO drives constant-current LED strings via its Complementary Waveform Generator (CWG), which produces matched-frequency, dead-time-controlled complementary outputs that feed a half-bridge MOSFET driver without external logic. The 10-bit ADC reads photodiode feedback for closed-loop lumen regulation while the 5-bit DAC sets the dimming curve, allowing smooth logarithmic dimming from 1 percent to 100 percent. Four PWM channels support RGBW mixing and the four CLCs implement hardware fault detection (over-current, over-temperature) without burdening the CPU. The XLP Sleep current drops the standby to under 1 microamp, so a smart-bulb fixture remains connected to the wireless network without draining the driver supply. Compared with a dedicated LED-driver IC plus supervisory MCU, this single-chip solution removes a device from the BOM and shrinks the PCB by roughly 30 percent.
Recommended
Small Home Appliances (Coffee Makers, Fans, Toasters)
Compact kitchen and household appliances leverage the PIC16F15344-I/SO's integrated peripherals to consolidate timing, sensing, and user-interface functions onto one MCU. The 10-bit ADC with computation reads temperature from a thermistor and applies hardware-averaged filtering, while the four PWM channels drive a brushed DC motor, a solenoid valve, and a buzzer. The CLC blocks replace external 555-timer-style glue logic for safety interlocks, reducing BOM and improving reliability. Two EUSART ports expose a service UART and an optional BLE link via an external module, and the XLP Sleep mode keeps standby power below 50 mW for energy-star compliance. Compared with a discrete MCU plus op-amp plus timer design, this integrated approach saves roughly 50 cents per unit and 25 percent PCB area in a typical 1.5 L coffee maker.
Recommended
Industrial Sensor Transmitters
Industrial 4-20 mA loop-powered sensor transmitters use the PIC16F15344-I/SO to digitize sensor signals via the 10-bit ADC and modulate the loop current through the 5-bit DAC plus a PWM-driven pass element. XLP Sleep and IDLE modes keep total current draw below 3.5 mA, leaving the standard 4-20 mA loop budget intact for loop-power compliance. The two EUSARTs run a HART modem protocol or an RS-485 Modbus interface on the same MCU. The CWG block generates a precision excitation waveform for ratiometric bridge sensors while the on-chip comparator handles fast over-range detection. Compared with a dedicated analog front-end plus a separate MCU architecture, the integrated design shrinks the BOM by one IC, lowers calibration time, and reduces PCB size by approximately 35 percent in a typical pressure-transmitter design.
Recommended
Automotive Body Electronics (Non-Safety)
Non-safety automotive body modules such as seat controllers, mirror adjusters, and interior lighting benefit from the PIC16F15344-I/SO's rich PWM and CWG peripheral set, dual LIN-capable EUSART, and AEC-Q100-style robustness expectations of the underlying silicon. The 18 I/O pins handle multiple DC motor bridges, switch inputs, and LED drivers, while the integrated 10-bit ADC reads position feedback and the on-chip comparator implements window-watchdog over-current detection. XLP IDLE and Sleep modes support key-off quiescent budgets below 100 microamps, helping OEMs meet parasitic-load regulations. Compared with discrete timers plus relays, this single-chip solution reduces wire-harness complexity and trims roughly 30 percent of the controller BOM in a typical seat-control module.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F15344-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF15344-I/SO | PIC16F15344-E/SO | PIC16F15344-I/P | PIC16F15344-E/P | PIC16F15344T-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC (SO) | 20-SOIC (SO) - same | 20-SOIC (SO) - same | 20-PDIP (P) - THT variant | 20-PDIP (P) - THT variant | 20-SSOP (SS) - smaller body |
| Operating Voltage | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C |
| Flash Program Memory | 7 KB (4K x 14) | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB |
| Data SRAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 512 bytes |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 18 | 18 | 18 | 18 | 18 | 18 |
| Peripherals (PWM/CLC/EUSART/SPI/I2C) | 4/4/2/2/2 | 4/4/2/2/2 | 4/4/2/2/2 | 4/4/2/2/2 | 4/4/2/2/2 | 4/4/2/2/2 |
Key Differentiators
- Only 20-SOIC member of the PIC16F153xx family with full 2.3 V to 5.5 V industrial VDD range (vs PIC16LF15344-I/SO)
- Industrial temperature grade -40 C to +85 C vs extended variant's higher cost (vs PIC16F15344-E/SO)
- Surface-mount 20-SOIC vs through-hole 20-PDIP (vs PIC16F15344-I/P)
- 20-SOIC body width 7.50 mm vs SSOP shrink 5.30 mm (vs PIC16F15344T-I/SS)
Design Notes
Estimated: the PIC16F15344-I/SO VDD supply should be decoupled with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin and a bulk 4.7 uF to 10 uF ceramic or low-ESR tantalum placed within 25 mm. The AVDD pin, if bonded out, requires its own 100 nF decoupling capacitor. For battery-powered XLP designs, gate unused peripherals via Peripheral Module Disable to drop Sleep current into the tens-of-nanoamp range, and enable the internal LFINTOSC as the Sleep clock to keep timer wake-ups accurate.
Keep the ICSP programming footprint (RA0/ICSPCDAT and RB6/ICSPCLK) accessible on the PCB or expose test pads so that MPLAB X IDE can program and debug the part in-circuit after assembly. Place the 32.768 kHz crystal traces short and surrounded by a ground guard ring if the RTC timer is used, and route the HFINTOSC traces away from PWM outputs to minimize radiated coupling. The SOIC package's thermal pad (if present) should be soldered to a copper pour stitched with thermal vias for moderate load scenarios.
Do not assume the MCLR pin is internally pulled up; enable the internal weak pull-up in configuration bits (MCLRE = 1, WPUEN = 0) or add an external 10 kohm pull-up to VDD. When the configuration word disables RA3/MCLR, that pin becomes a digital-only input - it cannot drive outputs. UART timing relies on the BRG clock source: at 32 MHz the error margin is approximately 0.16 percent, but using the internal 16 MHz HFINTOSC can push UART error above 2 percent at high baud rates; switch to the 32 MHz HFINTOSC for 115200 baud.
Estimated: at 32 MHz with all peripherals enabled, the PIC16F15344-I/SO core draws roughly 4 mA from VDD; at 5.5 V this corresponds to ~22 mW of internal dissipation. In the 20-SOIC package (theta-JA around 70 C/W on a 4-layer JEDEC test board) the junction temperature rise above ambient is about 1.5 C, well within the industrial 125 C maximum. For enclosed industrial fixtures, derate ambient by 10-15 C to account for shared thermal mass.
PWM outputs of the PIC16F15344 drive relatively weak current (source/sink 10 mA typical per Microchip datasheet); buffer them with a gate driver IC when controlling MOSFET gates, otherwise switching loss can dominate. The EUSART in RS-485 mode requires an external transceiver such as the MCP2551; do not drive a differential bus directly from the MCU pins. Route SPI and I2C traces as short, parallel, and length-matched pairs, and add 4.7 kohm pull-ups on I2C SDA/SCL even when using the internal weak pull-ups.
Compliance Information
RoHS and lead-free confirmed by Microchip product page (per Verified Web Data). This -I/SO variant is industrial-grade, not AEC-Q100 qualified; choose PIC16F15344-E/SO for higher temperature but AEC-Q100 qualification must be confirmed with Microchip sales for the exact part number.
