PIC16F753-I/ML - 8-Bit 20MHz MCU 3.5KB Flash QFN-16 | Microchip
MPN: PIC16F753-I/ML ✓ Hoạt độngPIC16F753-I/ML Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC16F753-I/ML — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F753-I/ML (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, ADC, DAC, Internal Oscillator.
PIC16F753-E/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F753T-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F720-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1703-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F753-I/ML Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 16-pin QFN (4x4 mm) with exposed thermal pad |
| Kiểu lắp đặt | Surface Mount |
| Operating Temperature (Industrial 'I') | -40 C to +85 C |
| Programming/Debug | ICSP (2-wire) via PGC/PGD |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F753-I/ML
| Chân 1 | RA5/T1CKI/OSC1/CLKIN/VCAP — GPIO RA5 / Timer1 clock input / external oscillator input / regulator VCAP |
| Chân 2 | RA4/T1G/AN3/C1OUT/OSC2/CLKOUT — GPIO RA4 / Timer1 gate / ADC AN3 / Comparator 1 output / oscillator output |
| Chân 3 | RA3/MCLR/VPP — GPIO RA3 / Master Clear reset (active low) / programming voltage input |
| Chân 4 | RA2/AN2/T0CKI/C1OUT/C2IN+ — GPIO RA2 / ADC AN2 / Timer0 clock / Comparator 1 output / Comparator 2 non-inverting input |
| Chân 5 | RA1/AN1/C2IN0-/ICSPCLK — GPIO RA1 / ADC AN1 / Comparator 2 inverting input / ICSP clock |
| Chân 6 | RA0/AN0/C1IN+/ICSPDAT — GPIO RA0 / ADC AN0 / Comparator 1 non-inverting input / ICSP data |
| Chân 7 | VSS — Ground reference |
| Chân 8 | DACOUT/VREF-/RA7 — DAC output / negative voltage reference / GPIO RA7 |
| Chân 9 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| Chân 10 | RB7/AN7/C2OUT — GPIO RB7 / ADC AN7 / Comparator 2 output |
| Chân 11 | RB6/AN6/CCP1 — GPIO RB6 / ADC AN6 / CCP1 PWM output |
| Chân 12 | RB5/AN5/OPA1IN+/C2IN+ — GPIO RB5 / ADC AN5 / op-amp 1 non-inverting input / Comparator 2 non-inverting input |
| Chân 13 | RB4/AN4/OPA1IN-/C1IN- — GPIO RB4 / ADC AN4 / op-amp 1 inverting input / Comparator 1 inverting input |
| Chân 14 | RB3/AN3/OPA1OUT/C1OUT — GPIO RB3 / ADC AN3 / op-amp 1 output / Comparator 1 output |
| Chân 15 | RB2/AN2/C2OUT — GPIO RB2 / ADC AN2 / Comparator 2 output |
| Chân 16 | RB1/AN1/C1IN+/VREF+ — GPIO RB1 / ADC AN1 / Comparator 1 non-inverting input / positive voltage reference |
Ứng dụng tiêu biểu
PIC16F753-I/ML phù hợp cho 7 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F753-I/ML — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Industry-leading analog integration for a 16-pin MCU (vsPIC16F720-I/ML)
- Recommended Microchip migration target with doubled analog and CIPs (vsPIC16F1703-I/ML)
- Extended temperature drop-in for harsh-environment designs (vsPIC16F753-I/ML (industrial) vs PIC16F753-E/ML (extended))
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
