PIC16F753-I/SL - 8-bit MCU, 3.5KB Flash, 20MHz, 14-SOIC | Microchip
MPN: PIC16F753-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.67 | $16.70 |
| 100 | $1.41 | $141.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.02 | $1,020.00 |
PIC16F753-I/SL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripherals such as timers, ADCs, and communication interfaces. Within the semiconductor taxonomy, the PIC16F753 sits under 8-bit MCU -> RISC microcontroller -> embedded controller -> integrated circuit. Its Harvard RISC architecture executes most instructions in one cycle, which simplifies deterministic timing for motor, lighting, and sensor-control firmware.
Key features of the PIC16F753 include an integrated 9-bit DAC, two comparators with selectable references, a Capture/Compare/PWM (CCP) peripheral, an Enhanced PWM module, an on-chip 8MHz internal oscillator, and an integrated temperature indicator. The 14-pin SOIC footprint offers low-cost PCB assembly and broad hand-soldering access for prototyping. The device supports in-circuit serial programming (ICSP) via two pins, allowing firmware to be updated after PCB assembly without removing the part.
Technically, the PIC16F753 uses a 14-bit instruction word with a 16-deep hardware stack and 32-level interrupt priority structure. The integrated Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) and Master I2C interface give the part enough connectivity to act as a sensor hub or a slave controller in a larger digital system. Its nanoWatt XLP (eXtreme Low Power) technology enables standby currents in the microamp range, extending battery life in always-on applications.
Typical applications include LED drivers, battery chargers, power-supply supervisory loops, fan/motor speed controllers, and analog front-end conditioning. The DAC plus comparator combination enables closed-loop control without external glue logic. Compared with discrete op-amp + PWM solutions, the PIC16F753 reduces BOM count and PCB area.
For new designs where long-term Microchip support matters most, Microchip recommends migrating to the PIC16F1703 family. Designers evaluating migration should consult the PIC16F753 to PIC16F1703 migration document for peripheral-mapping details.
This page synthesizes distributor pricing, drop-in alternative MPNs, and design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F753-I/SL — 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 PIC16F753-I/SL (same form factor and footprint) — differing in Package, Timers, Program Memory (Flash), ADC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F753-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F753-I/ST
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16F753-I/ML
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.82 / Unit
View Datasheet →PIC16F1703-I/SL
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.87 / Unit
View Datasheet →PIC16F1526-I/SL
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F753-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data SRAM | 128 bytes |
| Data EEPROM | 64 bytes |
| Maximum CPU Frequency | 20 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 12 |
| Package | 14-pin SOIC (SL), 0.154" / 3.90 mm body width |
| Integrated DAC | 9-bit |
| Comparators | 2 |
| PWM Modules | 1x CCP + 1x Enhanced PWM (16-bit) |
| Timers | 3 (8-bit TMR0/TMR2, 16-bit TMR1) |
| Communication | EUSART + I2C (Master mode) |
| Internal Oscillator | 8 MHz (factory calibrated) |
| ICSP / Debug | In-Circuit Serial Programming |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| AEC-Q100 Automotive | Not qualified (industrial grade only) |
| Low-Power Technology | nanoWatt XLP |
PIC16F753-I/SL Pin Configuration
| Pin 1 | RA3/AN3/C1IN+/C2IN+/VREF+ — Bidirectional I/O, analog input, comparator input, voltage reference input |
| Pin 2 | RA4/AN4/C1IN-/T1G/OSC2/CLKOUT — Bidirectional I/O, analog input, comparator input, timer1 gate, oscillator output |
| Pin 3 | RA5/AN5/C2IN-/OSC1/CLKIN — Bidirectional I/O, analog input, comparator input, oscillator input |
| Pin 4 | VSS — Ground reference |
| Pin 5 | VDD — Positive supply voltage (2.0V to 5.5V) |
| Pin 6 | RB4/AN6/C2OUT/P1D — Bidirectional I/O, analog input, comparator output, PWM output |
| Pin 7 | RB5/AN7/P1C — Bidirectional I/O, analog input, PWM output |
| Pin 8 | RB6/AN8/P1B/ICSP CLK — Bidirectional I/O, analog input, PWM output, ICSP clock |
| Pin 9 | RB7/AN9/P1A/ICSP DAT — Bidirectional I/O, analog input, PWM output, ICSP data |
| Pin 10 | RA0/AN0/C1IN+/DACOUT — Bidirectional I/O, analog input, comparator input, DAC output |
| Pin 11 | RA1/AN1/C1IN-/VREF-/ICSPCLK — Bidirectional I/O, analog input, comparator input, alternate ICSP clock |
| Pin 12 | RA2/AN2/C2IN+/VREF+/ICSPDAT — Bidirectional I/O, analog input, comparator input, voltage reference, alternate ICSP data |
| Pin 13 | RC0/SCL/SCK — Bidirectional I/O, I2C clock, SPI clock |
| Pin 14 | RC1/SDA/SDI — Bidirectional I/O, I2C data, SPI data in |
Typical Applications
PIC16F753-I/SL is suitable for 6 applications: LED Lighting Driver, Battery Charging Controller, Brushless DC Fan Speed Control, Industrial Sensor Signal Conditioning, Power Supply Supervisory Loop, Wearable / Portable Device Control.
LED Lighting Driver
The PIC16F753's Enhanced PWM module with dead-band control and 16-bit resolution makes it well-suited for constant-current LED drivers in architectural and decorative lighting. The integrated 9-bit DAC synthesizes a precision current setpoint referenced against an internal bandgap, while two comparators enable closed-loop feedback without external op-amps. At 20 MHz / 5 MIPS the MCU executes PID brightness algorithms and dimming curves in real time. The 14-pin SOIC footprint fits inside MR16 lamp housings and standard LED strip driver PCBs. Power dissipation is dominated by the external MOSFET, not the MCU, so the small SOIC package is thermally adequate. nanoWatt XLP standby currents extend battery life in solar-powered landscape lighting.
Recommended
Battery Charging Controller
The PIC16F753 controls CC/CV battery charging profiles via its integrated DAC and comparators, sampling battery voltage and current to regulate a buck or linear charging stage. With 3.5 KB Flash, designers can implement multi-stage charge algorithms (pre-charge, constant current, constant voltage, termination) plus temperature foldback via the on-chip temperature indicator. The 8 MHz internal oscillator eliminates an external crystal, reducing BOM cost and PCB area in single-cell Li-Ion/LiFePO4 charger designs. nanoWatt XLP technology keeps quiescent draw in the microamp range during standby, critical for always-on USB chargers and solar battery maintainers.
Recommended
Brushless DC Fan Speed Control
Brushless DC (BLDC) and brushed DC fans benefit from the PIC16F753's Enhanced PWM and analog comparator pair for back-EMF sensing and closed-loop RPM regulation. The 9-bit DAC generates the variable voltage reference that sets the speed target, while the EUSART reports telemetry (RPM, fault status) to a host processor. With 5 MIPS throughput the firmware can run sensorless commutation routines plus PWM generation concurrently. The 14-SOIC package fits inside a 40 mm fan hub PCB, and the industrial -40 C to +85 C temperature range covers server, automotive cabin, and industrial cooling applications.
Recommended
Industrial Sensor Signal Conditioning
The PIC16F753 conditions analog sensor signals (thermocouples, RTDs, load cells, strain gauges) by combining its on-chip comparators for threshold detection with the integrated DAC for excitation or biasing. The EUSART or I2C interface delivers processed values to a host PLC or industrial controller via RS-485 or I2C bus. At 20 MHz the MCU can implement digital filtering (moving average, median) on top of its analog front end, reducing host processor burden. The 14-SOIC industrial-temperature package suits factory-floor environments, while nanoWatt XLP allows battery-powered wireless sensor nodes to sleep at sub-microamp currents between measurements.
Recommended
Power Supply Supervisory Loop
In switched-mode power supplies (SMPS) and isolated DC-DC converters, the PIC16F753 acts as a supervisory MCU monitoring output voltage, current, and temperature via its comparators and ADC, while driving auxiliary housekeeping functions such as fan control, fault logging, and PMBus/I2C telemetry. The Enhanced PWM can also be re-purposed for soft-start ramp generation or synchronization to an external clock. With 3.5 KB Flash the device holds small digital control loops and housekeeping code; for higher-bandwidth requirements, migrate to PIC16F1703 or dsPIC33. The SOIC-14 package drops onto standard PSU CRAC sub-mboards alongside the LLC/SNLC controller.
Recommended
Wearable / Portable Device Control
Wearable and portable products benefit from the PIC16F753's nanoWatt XLP technology, which delivers standby currents in the microamp range from a 2.0-5.5 V supply. The MCU handles low-rate sensor sampling, button-debounce, haptic-driver PWM, and BLE/Sub-GHz radio housekeeping via EUSART or I2C. With 3.5 KB Flash and 128 B SRAM it fits simple activity tracker, fitness band, and smart-watch sub-controller roles. The SOIC-14 package fits wearable wrist-band PCBs and can be hand-soldered during prototyping. Industrial temperature range ensures reliable operation across varied body-temperature and ambient conditions.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F753-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F753-E/SL | PIC16F753-I/ST | PIC16F753-I/ML | PIC16F1703-I/SL |
|---|---|---|---|---|---|
| Package | 14-pin SOIC (SL) | 14-pin SOIC (SL) - same | 14-pin TSSOP (ST) - smaller footprint | 16-pin QFN (ML) - smaller footprint | 14-pin SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB |
| Data SRAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 256 bytes |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 32 MHz |
| Integrated DAC | 9-bit | 9-bit | 9-bit | 9-bit | 8-bit (with 10-bit ADC) |
| Operating Temperature | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C | -40C to +85C |
| Supply Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 1.8V to 5.5V |
Key Differentiators
- Integrated 9-bit DAC with selectable reference (vs PIC16F677-I/SS (no DAC, 14-SOIC family))
- Enhanced PWM module with dead-band and fault input (vs PIC16F688-I/SL (only CCP PWM, no Enhanced module))
- NanoWatt XLP extreme low-power technology (vs PIC16F716-I/P (no XLP))
Design Notes
The PIC16F753-I/SL operates from 2.0V to 5.5V. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 5) and a bulk 10 uF capacitor on the supply rail. For battery-powered designs, the MCP1700 LDO is a low-quiescent partner that adds only ~1.6 uA Iq and avoids dropping the MCU's nanoWatt XLP advantage. Estimated: with 20 MHz operation at 5V, the MCU draws approximately 3-5 mA active, requiring careful power budgeting against the LDO's thermal rating.
Route the ICSP clock and data lines (RB6/RB7) with short, direct traces to a 6-pin header for in-circuit programming. Add 10 kohm pull-ups on SCL/SDA (RC0/RC1) if I2C is used. Keep analog inputs (RA0-RA5) away from PWM switching traces to avoid coupling noise into the comparators and DAC output. The exposed SOIC pad is not present; thermal dissipation through the package is adequate for typical MCU loads under 50 mW.
Configuration word settings must enable the internal 8 MHz oscillator (INTOSC) or the part will not start without an external crystal. The ICSPDAT/ICSPCLK pins (RB7/RB6) are multiplexed with I/O and can lock out programming if the firmware re-configures them as outputs with low logic level at reset. Always keep RB6/RB7 as inputs in the initial configuration word or add a series resistor / isolation diode to the ICSP header. The DAC output is not buffered; for driving low-impedance loads, add an external op-amp follower.
Compliance Information
Halogen-free per GlobalSpec datasheet sheet. RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 graded PIC parts for automotive.
