PIC16F1764T-I/ML - 8-bit 32MHz 7KB Flash MCU 16-QFN | Microchip
MPN: PIC16F1764T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.93 | $0.93 |
| 10 | $0.84 | $8.40 |
| 100 | $0.72 | $72.00 |
| 500 | $0.65 | $325.00 |
| 1,000 | $0.58 | $580.00 |
PIC16F1764T-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/EEPROM/RAM), and peripherals on one die. The 8-bit MCU class, anchored by Microchip's PIC architecture, is widely used where deterministic real-time response, low power, and small footprint outweigh raw throughput. Within that hierarchy, the PIC16F176X line targets mixed-signal embedded designs that need both analog conditioning and digital control without a separate analog front-end.
Key features include 32 MHz operation (8 MHz instruction rate with 4-cycle pipeline), 7 KB self-programmable Flash, 256 bytes EEPROM emulation via data EEPROM, 512 bytes RAM, 12-channel 10-bit ADC, two op amps, two 10-bit DACs, two comparators, a zero-cross detector, four 16-bit PWM with independent time bases, and configurable logic cells. The QFN-16 package exposes 14 I/O pins and supports industrial -40C to +85C operation. Brown-out reset, watchdog timer, and low-power sleep modes (nanowatt range) are also integrated.
Architecturally, the device uses a RISC-style Harvard core with 49 single-word instructions, deterministic interrupt latency, and a wide operating voltage range of 2.3V to 5.5V. The high-current I/O drivers can source/sink up to 50 mA per pin, eliminating external drivers for LED arrays, relays, and small solenoids.
Typical applications include LED lighting control (constant-current drivers with high-resolution PWM for dimming), sensor signal conditioning (using on-chip op amps), small motor and fan control (with complementary PWM outputs), AC zero-cross switching for TRIAC/SSR drive, and consumer appliance control panels. Designers value the analog integration because it shrinks the BOM in space-constrained cost-sensitive products.
A design consideration for the 16-QFN is thermal pad connection to the PCB ground plane to keep junction temperature in spec; expose-pad soldering is critical for mechanical reliability and thermal performance.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet to help engineers evaluate, source, and design with the PIC16F1764T-I/ML efficiently.
Drop-in alternatives for PIC16F1764T-I/ML — 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 PIC16F1764T-I/ML (same form factor and footprint) — differing in ADC, DAC, Operating Temperature, Package, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1764-I/ML
✅ Drop-In✓ In Stock
$0.87 / Unit
View Datasheet →PIC16F1765T-I/ML
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1768T-I/ML
✅ Drop-In✓ In Stock
$1.08 / Unit
View Datasheet →PIC16F1708T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1769T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1764T-I/ML Maximum Ratings & Electrical Characteristics
| Family | PIC16F176X |
| Core | PIC 8-bit RISC |
| Program Memory | 7 KB (4K x 14) Flash |
| RAM | 512 bytes |
| EEPROM | 256 bytes |
| CPU Speed | 32 MHz (8 MIPS) |
| Supply Voltage | 2.3 V to 5.5 V |
| Operating Temperature | -40C to +85C |
| I/O Pins | 14 |
| Package | 16-QFN (4x4 mm) |
| Mounting Type | Surface Mount |
| ADC | 10-bit, up to 12 channels |
| DAC | 2x 10-bit |
| Comparators | 2 |
| Op Amps | 2 |
| PWM | 4x 16-bit, independent time bases |
| Zero-Cross Detector | Yes |
| I/O Drive Strength | High current (up to 50 mA per pin) |
| Low Power Feature | XLP eXtreme Low-Power, sleep in nA range |
| RoHS Status | Compliant |
PIC16F1764T-I/ML Pin Configuration
| Pin 1 | RA2 — Bidirectional I/O / analog input |
| Pin 2 | RA3/MCLR/VPP — I/O / Master Clear (reset) / programming voltage |
| Pin 3 | RA4 — Bidirectional I/O / analog input |
| Pin 4 | RA5 — Bidirectional I/O / analog input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | VDD — Positive power supply |
| Pin 7 | RB0 — Bidirectional I/O / analog input |
| Pin 8 | RB1 — Bidirectional I/O / analog input |
| Pin 9 | RB2 — Bidirectional I/O / analog input |
| Pin 10 | RB3 — Bidirectional I/O / analog input |
| Pin 11 | RB4 — Bidirectional I/O |
| Pin 12 | RB5 — Bidirectional I/O |
| Pin 13 | RB6/PGC — I/O / ICD clock (programming/debug) |
| Pin 14 | RB7/PGD — I/O / ICD data (programming/debug) |
| Pin 15 | RA0/ICDDAT — I/O / ICD data |
| Pin 16 | RA1/ICDCLK — I/O / ICD clock |
Typical Applications
PIC16F1764T-I/ML is suitable for 6 applications: LED Lighting Control and Dimming, AC Zero-Cross Solid-State Switching, Small DC Motor and Fan Speed Control, Sensor Signal Conditioning, Consumer Appliance Control Panels, IoT Edge Sensor Nodes.
LED Lighting Control and Dimming
The PIC16F1764T-I/ML is ideal for constant-current LED driver controllers in dimmable luminaires, accent lighting, and signage. Its four 16-bit PWM channels with independent time bases deliver high-resolution dimming (>16-bit effective duty cycle) that meets architectural-grade lighting flicker requirements. Per the PIC16F176X datasheet, the on-chip op amps can close a current-sense loop directly, eliminating external transconductance stages. The high-current I/O pins (50 mA sink/source per pin) drive small LED strings without MOSFET drivers, shrinking the BOM. Choose this MCU when you need smooth logarithmic dimming, multiple independently-dimmed channels, and zero-cross detection for AC-line synchronous fading in TRIAC-dimmable fixtures. Compared to a pure analog LED driver, the PIC16F1764T-I/ML adds remote-control protocol support (UART, I2C, DMX) at modest cost.
Recommended
AC Zero-Cross Solid-State Switching
The integrated zero-cross detector (ZCD) module makes the PIC16F1764T-I/ML well suited for AC-line TRIAC/SSR switching in appliances, motor starters, and smart outlets. Per the PIC16F176X datasheet, the ZCD generates an interrupt within 50 ns of the AC zero crossing, enabling zero-voltage switching that minimizes EMI and extends relay contact life. The on-chip op amps can buffer and amplify sensor inputs (NTC thermistor, current-sense shunt) for closed-loop protection. Combined with the high-current I/O (50 mA), the MCU can drive small TRIACs directly via a gate resistor. Designers favor this part for low-noise AC switching because it eliminates the discrete ZCD circuit traditionally required.
Recommended
Small DC Motor and Fan Speed Control
The PIC16F1764T-I/ML's four complementary 16-bit PWM outputs drive brushed DC motors, small brushless fans, and solenoid actuators with closed-loop speed or position control. Per Microchip's motor-control library, the configurable logic cells and on-chip comparators implement current limiting and back-EMF sensing without external comparators. The op amps handle analog feedback conditioning, while the high-current I/O drives gate drivers directly. Operating from 2.3 V to 5.5 V, the MCU can be powered from a single-cell Li-ion or USB rail. The 32 MHz CPU executes field-oriented-control software at sufficient update rates for sub-100 W motors, while the XLP sleep mode drops to nanoamp standby when the motor is idle.
Recommended
Sensor Signal Conditioning
With two on-chip op amps, two comparators, and a 12-channel 10-bit ADC, the PIC16F1764T-I/ML performs complete sensor signal conditioning for thermocouples, photodiodes, strain gauges, and pH probes. Per the PIC16F176X datasheet, the op amps can be configured as instrumentation front-ends with programmable gain, eliminating external analog ICs. The 10-bit ADC provides adequate resolution for industrial process monitoring, while the high-current I/O directly drives 4-20 mA loop or HART modem front-ends. The MCU also handles digital filtering and linearization firmware in C, allowing sensor calibration data to be stored in on-chip EEPROM for factory-trimmed accuracy.
Recommended
Consumer Appliance Control Panels
The PIC16F1764T-I/ML is widely used in microwave oven keypads, washing-machine control boards, coffee machine UI panels, and air-conditioner remotes because of its rich mix of analog peripherals and high-current I/O. Per the PIC16F176X datasheet, the device directly drives LED segment displays, key-scanning matrices, and buzzer transducers without external drivers. The op amps amplify microphone or touch-sense signals, while the zero-cross detector synchronizes to AC mains for dimming and power-level control. Operating from -40C to +85C, the MCU survives appliance thermal environments, and the XLP sleep modes meet standby regulations like Energy Star.
Recommended
IoT Edge Sensor Nodes
The PIC16F1764T-I/ML fits battery-powered IoT edge nodes such as environmental monitors, smart thermostats, and wireless sensor tags thanks to its XLP low-power operation and integrated analog front-end. Per the PIC16F176X datasheet, sleep currents in the nanoampere range extend coin-cell life into years, while the on-chip ADC and op amps condition sensor data before transmission. The MCU interfaces over UART or SPI to popular sub-GHz radios (LoRa, Zigbee) and BLE modules without glue logic. With 7 KB Flash, it can run simple protocol stacks and onboard anomaly-detection firmware before pushing data to a gateway.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1764T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1764-I/ML | PIC16F1765T-I/ML | PIC16F1768T-I/ML | PIC16F1708T-I/ML | PIC16F1769T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-QFN (4x4 mm) | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same |
| Flash Memory | 7 KB | 7 KB | 14 KB | 7 KB | 7 KB | 14 KB |
| RAM | 512 B | 512 B | 1 KB | 512 B | 512 B | 1 KB |
| CPU Speed | 32 MHz (8 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Op Amps | 2 | 2 | 2 | 2 | 0 | 2 |
| Zero-Cross Detector | Yes | Yes | Yes | Yes | No | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- On-chip zero-cross detector for AC switching (vs PIC16F1708T-I/ML)
- Two integrated op amps eliminate external analog front-end (vs PIC16F1765T-I/ML with same op-amp count)
- Tape and reel packaging for high-volume assembly (vs PIC16F1764-I/ML)
Design Notes
The 16-QFN package dissipates heat primarily through the exposed pad (EP) on the underside. Per Microchip packaging guidelines, the EP must be soldered to a PCB copper pad of at least 0.5 sq cm to keep junction temperature in spec. Without proper EP soldering, the internal thermal resistance can rise above 100 C/W and the part may overheat at full CPU load with multiple peripherals active. Add thermal vias (4-6 in a 3x3 array) under the EP to spread heat into the inner PCB ground plane.
Place decoupling capacitors as close as possible to VDD (pin 6) and VSS (pin 5). Use a 100 nF ceramic on VDD and a 10 uF bulk capacitor on the supply rail. Per Microchip's general MCU layout guide, separate analog signals (RA0-RA5, RB0-RB3) from digital switching traces to minimize ADC crosstalk. Keep the analog reference (if used) trace short and guarded by ground.
Do not leave the MCLR pin floating - it must be tied to VDD through a 10 kohm resistor or directly driven by the debugger. For in-circuit programming (ICSP), dedicate RB6/PGC and RB7/PGD pins to the debugger interface and avoid loading them with heavy capacitance or pull-ups that exceed 10 kohm. The zero-cross detect input requires an external current-limiting resistor (typically 1 Mohm) for safe AC-line sensing; exceeding the absolute maximum input voltage will damage the pin.
Compliance Information
RoHS and REACH compliant per Microchip product environmental compliance information. Industrial-grade -40C to +85C; not AEC-Q100 qualified - consult automotive-grade variants for vehicle applications.
