PIC16F753-I/ML - 8-Bit 20MHz MCU 3.5KB Flash QFN-16 | Microchip
MPN: PIC16F753-I/ML β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.08 | $108.00 |
| 500 | $0.94 | $470.00 |
| 1,000 | $0.82 | $820.00 |
PIC16F753-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and configurable peripherals onto one silicon die. The PIC mid-range family uses a RISC architecture with only 35 instructions and Harvard-style separate program and data buses, allowing single-cycle execution of most instructions at DC to 200ns cycle time. PIC microcontrollers are commonly categorized by core family (PIC10/12/16/18/24/32) and program-memory technology (Flash, OTP, ROM), and they sit inside the broader taxonomy of embedded processors alongside AVR, MSP430, and Cortex-M devices.
Key features of the PIC16F753 include 12 I/O lines, five timers, a wide 2.0V to 5.5V operating voltage range, internal oscillator calibration, an on-chip voltage reference, and nanoWatt Technology with multiple power-managed sleep modes for ultra-low standby current. Watchdog Timer with on-chip RC oscillator, In-Circuit Serial Programming (ICSP), and code protection complete the standard PIC mid-range feature set. The QFN-16 (4x4) package offers an exposed thermal pad that improves power dissipation for industrial temperature operation (-40C to +85C industrial 'I' grade).
Architecturally the device pairs a modified Harvard CPU with peripheral modules connected through a shared data bus, with peripheral pin-select style routing via PPS-style fixed mapping on most pins. The integrated op-amp and comparators can be configured for closed-loop signal conditioning, while the 9-bit DAC and 10-bit ADC enable mixed-signal closed-loop control without external analog components. Self-read/write Flash permits non-volatile data storage and in-application firmware updates.
Typical applications include LED lighting control, battery chargers, power-conversion supervisory loops, sensor signal conditioning, and small consumer appliances. The wide analog integration makes it well suited to closed-loop constant-current LED drivers and SMPS secondary-side control where a small PCB footprint matters.
When designing with this part, ensure the QFN-16 (4x4) exposed thermal pad is properly soldered to a sufficient copper pour for heat extraction, and follow Microchip AN1466 and AN1095 guidance for QFN PCB layout, ICSP programming pin assignment (PGC/PGD), and in-circuit debug.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F753-I/ML β 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/ML (same form factor and footprint) β differing in Core Architecture, Package, ADC, Internal Oscillator, Timers.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F753-E/ML
β Drop-Inπ Reference alternative (not in catalog)
PIC16F753T-I/ML
β Drop-Inπ Reference alternative (not in catalog)
PIC16F720-I/ML
β Drop-Inβ In Stock
$0.78 / Unit
View Datasheet βPIC16F1703-I/ML
β Drop-Inβ In Stock
$0.78 / Unit
View Datasheet βPIC16F753-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 Mid-Range 8-bit RISC (14-bit instruction word) |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| RAM | 128 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Operating Voltage | 2.0 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 8 channels x 10-bit |
| DAC | 1 channel x 9-bit |
| Operational Amplifier | 1 (rail-to-rail I/O) |
| Analog Comparators | 2 (high-speed, 50 ns response) |
| Timers | 5 (TMR0, TMR1, TMR2, TMR4, TMR6) |
| CCP Modules | 1 (Capture/Compare/PWM) |
| Internal Oscillator | 8 MHz (software-selectable frequency range) |
| Voltage Reference | On-chip 1.024 V / 2.048 V / 4.096 V selectable |
| Package | 16-pin QFN (4x4 mm) with exposed thermal pad |
| Mounting Type | Surface Mount |
| Operating Temperature (Industrial 'I') | -40 C to +85 C |
| Programming/Debug | ICSP (2-wire) via PGC/PGD |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC16F753-I/ML Pin Configuration
| Pin 1 | RA5/T1CKI/OSC1/CLKIN/VCAP β GPIO RA5 / Timer1 clock input / external oscillator input / regulator VCAP |
| Pin 2 | RA4/T1G/AN3/C1OUT/OSC2/CLKOUT β GPIO RA4 / Timer1 gate / ADC AN3 / Comparator 1 output / oscillator output |
| Pin 3 | RA3/MCLR/VPP β GPIO RA3 / Master Clear reset (active low) / programming voltage input |
| Pin 4 | RA2/AN2/T0CKI/C1OUT/C2IN+ β GPIO RA2 / ADC AN2 / Timer0 clock / Comparator 1 output / Comparator 2 non-inverting input |
| Pin 5 | RA1/AN1/C2IN0-/ICSPCLK β GPIO RA1 / ADC AN1 / Comparator 2 inverting input / ICSP clock |
| Pin 6 | RA0/AN0/C1IN+/ICSPDAT β GPIO RA0 / ADC AN0 / Comparator 1 non-inverting input / ICSP data |
| Pin 7 | VSS β Ground reference |
| Pin 8 | DACOUT/VREF-/RA7 β DAC output / negative voltage reference / GPIO RA7 |
| Pin 9 | VDD β Positive supply voltage (2.0 V to 5.5 V) |
| Pin 10 | RB7/AN7/C2OUT β GPIO RB7 / ADC AN7 / Comparator 2 output |
| Pin 11 | RB6/AN6/CCP1 β GPIO RB6 / ADC AN6 / CCP1 PWM output |
| Pin 12 | RB5/AN5/OPA1IN+/C2IN+ β GPIO RB5 / ADC AN5 / op-amp 1 non-inverting input / Comparator 2 non-inverting input |
| Pin 13 | RB4/AN4/OPA1IN-/C1IN- β GPIO RB4 / ADC AN4 / op-amp 1 inverting input / Comparator 1 inverting input |
| Pin 14 | RB3/AN3/OPA1OUT/C1OUT β GPIO RB3 / ADC AN3 / op-amp 1 output / Comparator 1 output |
| Pin 15 | RB2/AN2/C2OUT β GPIO RB2 / ADC AN2 / Comparator 2 output |
| Pin 16 | RB1/AN1/C1IN+/VREF+ β GPIO RB1 / ADC AN1 / Comparator 1 non-inverting input / positive voltage reference |
Typical Applications
PIC16F753-I/ML is suitable for 7 applications: Constant-Current LED Lighting Driver, Battery Charger / Battery Management, Sensor Signal Conditioning, SMPS Secondary-Side Control, Small Consumer Appliance Control, Industrial Process Control Loop, Automotive Interior Lighting and Body Electronics.
Constant-Current LED Lighting Driver
The PIC16F753-I/ML fits this application because its integrated rail-to-rail op-amp, 50 ns analog comparators, 10-bit ADC, 9-bit DAC, and PWM (CCP) close a single-chip constant-current feedback loop for one or more LED strings. The op-amp serves as the current-sense error amplifier, the high-speed comparator triggers PWM termination, and the ADC monitors forward voltage for thermal derating. Power dissipation stays low in the small QFN-16 (4x4) footprint, ideal for MR16/AR111 retrofit lamps and architectural fixtures.
Recommended
Battery Charger / Battery Management
The PIC16F753-I/ML suits charger applications where its 2.0V to 5.5V VDD range matches single-cell Li-ion, 9V smoke-detector, and two-cell NiMH packs directly. The on-chip op-amp performs current-sense amplification, the 10-bit ADC reads voltage/current/temperature, and the 9-bit DAC sets the float-voltage reference. CCP-based PWM drives a buck or linear pass element, and the 50 ns comparators enable fast over-current protection.
Recommended
Sensor Signal Conditioning
The PIC16F753-I/ML is ideal for front-end analog signal conditioning where its integrated rail-to-rail op-amp, two 50 ns comparators, and 10-bit ADC replace a discrete op-amp + window comparator + MCU solution. The op-amp performs bridge amplification or active filtering, the comparators issue threshold-based interrupts, and the ADC delivers 10-bit digital output over UART, I2C, or SPI. This shrinks BOM, board area, and firmware complexity in thermistor, RTD, photodiode, and pressure-sensor modules.
Recommended
SMPS Secondary-Side Control
In isolated DC-DC and AC-DC flyback converters, the PIC16F753-I/ML operates on the secondary side, providing constant-voltage and constant-current regulation. The high-speed comparators detect optocoupler feedback, the op-amp conditions V/I sense signals, and the ADC monitors output voltage and primary-side auxiliary winding. CCP/PWM drives the optocoupler or an SR (synchronous rectifier) MOSFET, achieving <50 mV load-step response in 5V/3.3V adapters and phone chargers.
Recommended
Small Consumer Appliance Control
The PIC16F753-I/ML drives blenders, coffee makers, hair dryers, and other sub-100W appliances where 3.5 KB Flash, 12 I/O lines, and integrated analog are sufficient. The op-amp conditions zero-cross and current-sense signals for TRIAC phase-angle control, the ADC reads NTC thermistor temperature, and the 9-bit DAC sets reference for safety thresholds. The 4x4 mm QFN footprint is small enough for in-line corded and compact cordless appliances.
Recommended
Industrial Process Control Loop
The PIC16F753-I/ML implements a single-loop PID controller for industrial temperature, pressure, and flow regulation. Its 10-bit ADC digitizes 4 to 20 mA or 0 to 10 V transducer signals (with external resistor), the op-amp drives the 4 to 20 mA output stage, and the CCP generates the control output. The 256 B EEPROM stores calibration constants, and the 2.0V to 5.5V supply accepts 24V industrial bus power after step-down. The industrial -40 C to +85 C rating suits factory-floor deployments.
Recommended
Automotive Interior Lighting and Body Electronics
The PIC16F753-I/ML powers ambient interior lighting, vanity mirrors, footwell LEDs, and simple body-electronic modules operating from 12V automotive rails. After 12V to 5V regulation, the MCU drives MOSFETs via CCP/PWM and monitors LED current via the integrated op-amp. The 50 ns comparators provide fast short-to-battery and reverse-battery detection, while the 10-bit ADC samples battery voltage for dimming compensation. For AEC-Q100 requirements, the PIC16F753-E/ML extended-grade variant is preferred.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F753-I/ML β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F753-E/ML | PIC16F753T-I/ML | PIC16F720-I/ML | PIC16F1703-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-16 (4x4) | QFN-16 (4x4) - same | QFN-16 (4x4) - same | QFN-16 (4x4) - same | QFN-16 (4x4) - same |
| Flash Program Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB |
| RAM | 128 B | 128 B | 128 B | 128 B | 256 B |
| Maximum CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 16 MHz |
| Integrated Op-Amp | 1 | 1 | 1 | 0 | 2 |
| DAC | 1 x 9-bit | 1 x 9-bit | 1 x 9-bit | none | 2 x 10-bit |
| ADC | 8 ch x 10-bit | 8 ch x 10-bit | 8 ch x 10-bit | 8 ch x 10-bit | 8 ch x 10-bit |
| Temperature Grade | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| Approx. Unit Price (qty 1, as of 2026-09-21) | $1.42 | $1.62 | $1.42 | $1.12 | $1.50 |
Key Differentiators
- Industry-leading analog integration for a 16-pin MCU (vs PIC16F720-I/ML)
- Recommended Microchip migration target with doubled analog and CIPs (vs PIC16F1703-I/ML)
- Extended temperature drop-in for harsh-environment designs (vs PIC16F753-I/ML (industrial) vs PIC16F753-E/ML (extended))
Design Notes
QFN-16 (4x4) packages have an exposed thermal pad (EP) that must be soldered to a PCB copper pour for electrical grounding, mechanical robustness, and thermal dissipation. Per Microchip AN1466 / AN1095, use an EP land of approximately 2.0 mm x 2.0 mm with 0.4 mm pitch vias in a 3x3 grid to the inner ground plane. Place 0.1 uF decoupling capacitor within 3 mm of the VDD pin and a bulk 1 uF to 10 uF tantalum or ceramic at the board's power entry.
Do not leave the MCLR/VPP pin floating - tie it to VDD through a 10 kohm resistor with a 0.1 uF cap close to the pin for noise decoupling. The ICSP pins (ICSPCLK and ICSPDAT, shared with RA1 and RA0) must be accessible to the in-circuit programmer; do not connect them to low-impedance loads without buffer resistors. The internal 8 MHz oscillator requires OSCTUNE calibration for UART precision: a 0.5% error at 115200 baud can corrupt frames.
The PIC16F753-I/ML supports nanoWatt Technology with multiple idle, sleep, and deep-sleep modes that drop supply current to sub-microampere levels. The on-chip op-amp and comparators can operate in sleep mode when clocked from the internal LF oscillator, enabling continuous analog supervision at 2.0 V to 5.5 V with average current under 50 uA in battery-powered sensor designs. Use the WDT with its dedicated RC oscillator for reliable wake-up.
Compliance Information
RoHS and lead-free per Microchip product page and DigiKey compliance table. The 'I' suffix denotes industrial temperature grade -40C to +85C; for AEC-Q100 automotive qualification a different part number must be selected.
