PIC16F1764-E/ST - 8-Bit 32MHz MCU 7KB Flash 14-TSSOP | Microchip
MPN: PIC16F1764-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.34 | $1.34 |
| 10 | $1.21 | $12.10 |
| 100 | $1.08 | $108.00 |
| 500 | $0.96 | $480.00 |
| 1,000 | $0.85 | $850.00 |
PIC16F1764-E/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. The PIC16F1764 belongs to the 8-bit PIC16 architecture family, which sits within the broader microcontroller category and the embedded systems hierarchy (MCU -> microcontroller -> semiconductor -> integrated circuit). The XLP (eXtreme Low Power) designation indicates sleep currents in the nanoamp range, enabling battery-powered designs.
Key features include 7KB Flash, 512 bytes SRAM, 10-bit ADC, 5/10-bit DAC, two operational amplifiers, zero-cross detect, high-current I/O pins capable of sourcing/sinking higher loads, peripheral pin select (PPS), and a wide operating voltage range from 2.3V to 5.5V. The 'E' suffix denotes the extended industrial temperature range (-40C to +125C), and 'ST' indicates the 14-pin TSSOP package.
The PIC16F1764 uses Microchip's enhanced mid-range 8-bit core with a 14-bit instruction word, providing deterministic interrupt latency and straightforward C-compiler support via MPLAB X IDE and XC8. The integrated op amps, DAC, and zero-cross detect make it well suited to closed-loop control applications such as LED lighting, motor control, and power conversion.
Typical applications include LED lighting drivers, switched-mode power supply (SMPS) secondary-side control, motor control, sensor signal conditioning, IoT edge nodes, and consumer appliances requiring low standby power.
When designing with the PIC16F1764-E/ST, observe decoupling guidelines: place a 100nF ceramic bypass capacitor as close as possible to the VDD pin, and add a bulk capacitor (4.7uF-10uF) on the supply rail. Configure unused I/O pins as outputs low to minimize power consumption in sleep mode.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not aggregated in any single source. For engineers evaluating whether the PIC16F1764-E/ST fits their design, the combination of integrated analog peripherals and XLP nanoWatt technology is the primary differentiator versus general-purpose 8-bit MCUs in the same TSSOP-14 footprint.
Drop-in alternatives for PIC16F1764-E/ST — 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 PIC16F1764-E/ST (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Data EEPROM, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1574-E/ST
✅ Drop-In✓ In Stock
$0.98 / Unit
View Datasheet →PIC16F1575-E/ST
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1613-E/ST
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F1705-I/ST
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1503-E/ST
✅ Drop-In✓ In Stock
$0.52 / Unit
View Datasheet →PIC16F1764-E/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 8-bit Enhanced Mid-Range |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data Memory (SRAM) | 512 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| ADC | 10-bit |
| DAC | 5/10-bit |
| Operational Amplifiers | 2 internal op amps |
| Zero-Cross Detect | Yes |
| High-Current I/O Pins | Yes (source/sink capable) |
| Package | 14-pin TSSOP (4.40 mm body width) |
| Operating Temperature Range | -40 C to +125 C (E suffix) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| MSL Level | 1 |
| Family | PIC16F XLP 16F |
PIC16F1764-E/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage |
| Pin 2 | RA5 — Bidirectional I/O / analog input |
| Pin 3 | RA4 — Bidirectional I/O / analog input |
| Pin 4 | RA3/MCLR — Bidirectional I/O or Master Clear (reset) input |
| Pin 5 | RC5 — Bidirectional I/O |
| Pin 6 | RC4 — Bidirectional I/O |
| Pin 7 | RC3 — Bidirectional I/O / analog input |
| Pin 8 | RC2 — Bidirectional I/O / analog input |
| Pin 9 | RC1 — Bidirectional I/O / analog input |
| Pin 10 | RC0 — Bidirectional I/O / analog input |
| Pin 11 | RA2 — Bidirectional I/O / analog input |
| Pin 12 | RA1 — Bidirectional I/O / analog input / ICSPCLK |
| Pin 13 | RA0 — Bidirectional I/O / analog input / ICSPDAT |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F1764-E/ST is suitable for 7 applications: LED Lighting Drivers and Dimmer Control, Switched-Mode Power Supply (SMPS) Secondary-Side Control, Sensor Signal Conditioning and IoT Edge Nodes, Motor Control and BLDC Commutation, Consumer Appliance Control (Coffee Makers, Air Purifiers), Battery Management and Charging Front-Ends, Automotive Body Electronics and Lighting.
LED Lighting Drivers and Dimmer Control
The PIC16F1764-E/ST is engineered for LED lighting drivers thanks to its integrated dual op amps, 10-bit ADC, 5/10-bit DAC, and zero-cross detect hardware. The zero-cross detect module simplifies TRIAC-based leading-edge dimmer interfacing by detecting AC line crossings without external optocouplers, while the DAC and op amps enable closed-loop constant-current regulation. Operating from 2.3 V to 5.5 V and XLP nanoWatt technology with sleep currents in the nanoamp range, this MCU supports both mains-powered and battery-backed lighting installations. The TSSOP-14 footprint is small enough for GU10 bulb form factors, and the high-current I/O pins can source/sink LED strings directly.
Recommended
Switched-Mode Power Supply (SMPS) Secondary-Side Control
The PIC16F1764-E/ST is well-suited to SMPS secondary-side control loops where its integrated op amps serve as error amplifiers, the 10-bit ADC samples output voltage and current, and the high-resolution PWM drives synchronous rectifier MOSFETs. The 32 MHz CPU clock and 8 MIPS throughput enable sub-microsecond feedback loop updates for tight output regulation, while the TSSOP-14 package minimizes PCB area in dense power supply designs. Extended -40 C to +125 C operation ensures reliable performance in hot-running power supplies. Pair the MCU with a primary-side controller via opto-isolated feedback for complete digital power supply implementations.
Recommended
Sensor Signal Conditioning and IoT Edge Nodes
The PIC16F1764-E/ST integrates two op amps ideal for sensor signal conditioning (bridge sensors, thermocouples, photodiodes) without external amplifiers, while the 10-bit ADC digitizes the conditioned signal. XLP nanoWatt technology with multiple sleep modes keeps sleep current in the nanoamp range, making it suitable for battery-powered IoT edge nodes that must wake periodically to read sensors and transmit via radio. The TSSOP-14 form factor supports compact sensor modules, and the 32 MHz CPU can perform basic DSP filtering on raw sensor data before transmission to a gateway.
Recommended
Motor Control and BLDC Commutation
The PIC16F1764-E/ST provides dedicated PWM peripherals, a 10-bit ADC for back-EMF sensing, and high-current I/O capable of directly driving low-power motor driver stages, supporting brushless DC (BLDC) motor commutation in small fans, pumps, and appliance motors. The TSSOP-14 footprint fits tight motor-control PCBs, and the 32 MHz CPU clock and 8 MIPS throughput compute commutation tables and PI control loops in real time. Extended temperature grade supports automotive underhood and industrial motor applications.
Recommended
Consumer Appliance Control (Coffee Makers, Air Purifiers)
The PIC16F1764-E/ST integrates the analog peripherals (op amps, ADC, DAC, zero-cross detect) and PWM needed for appliance control boards in coffee makers, air purifiers, humidifiers, and similar consumer devices. The high-current I/O pins can drive relays, solenoids, and triacs directly for heating elements and pumps, while the XLP technology keeps standby power consumption below energy-star limits. The TSSOP-14 package combined with extended -40 C to +125 C operation supports sealed, hot-running appliance enclosures.
Recommended
Battery Management and Charging Front-Ends
The PIC16F1764-E/ST can implement Li-ion / NiMH battery charging front-ends by using its op amps to sense charge current, the 10-bit ADC to monitor battery voltage and temperature, and PWM channels to drive a buck converter or linear pass element. The TSSOP-14 footprint fits inside battery packs and charger cradles, while the 2.3 V-5.5 V supply range matches single- and multi-cell battery stacks. The 'E' temperature grade supports charging in environments from -40 C to +125 C.
Recommended
Automotive Body Electronics and Lighting
The PIC16F1764-E/ST with its TSSOP-14 footprint and integrated op amps/ADC/DAC/zero-cross detect is well-suited to automotive body electronics including interior LED lighting, ambient lighting controllers, and HVAC actuator drivers. Although not AEC-Q100 qualified at the -ST ordering code, the PIC16F variant is widely used in non-safety automotive subsystems. The 32 MHz CPU handles CAN-LIN gateway logic when paired with a transceiver, and XLP technology keeps quiescent draw low for always-on body modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1764-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1574-E/ST | PIC16F1575-E/ST | PIC16F1613-E/ST | PIC16F1705-I/ST | PIC16F1503-E/ST |
|---|---|---|---|---|---|---|
| Package | 14-pin TSSOP | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 14 KB (+100%) | 14 KB (+100%) | 3.5 KB (-50%) | 16 KB (+129%) | 3.5 KB (-50%) |
| SRAM | 512 bytes | 1 KB (+100%) | 1 KB (+100%) | 256 bytes (-50%) | 1 KB (+100%) | 256 bytes (-50%) |
| CPU Speed | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS |
| Operating Voltage | 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 | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Internal Op Amps | 2 | 0 | 0 | 0 | 2 | 0 |
| Zero-Cross Detect | Yes | Yes | Yes | No | Yes | No |
| DAC | 5/10-bit | None | None | 8-bit | 5/10-bit | None |
| Temperature Grade | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +125 C (E) |
| Unit Price (qty 1, USD) | 1.34 | 1.42 | 1.48 | 1.12 | 1.65 | 1.05 |
Key Differentiators
- Integrated dual op amps unique in TSSOP-14 8-bit MCU class (vs PIC16F1574-E/ST)
- Zero-cross detect hardware for AC dimmer interfacing (vs PIC16F1613-E/ST)
- 5/10-bit DAC for closed-loop control without external DAC (vs PIC16F1503-E/ST)
- XLP nanoWatt sleep current for battery applications (vs PIC16F1705-I/ST)
Design Notes
Place a 100 nF ceramic decoupling capacitor as close as physically possible to the VDD pin (pin 1) of the PIC16F1764-E/ST, and add a 4.7 uF to 10 uF bulk capacitor on the supply rail. The TSSOP-14 package has minimal lead inductance, so any series inductance in the VDD path can couple digital switching noise into analog measurements. A ferrite bead between the analog and digital supplies can further reduce ADC reference noise when reading millivolt-level sensor signals.
The PIC16F1764-E/ST TSSOP-14 package has a typical theta_JA of approximately 100 C/W. At 32 MHz with all peripherals active the device dissipates around 15 mW, giving a junction temperature rise of less than 2 C above ambient - well within the 125 C maximum. However, in sealed enclosures with no airflow, derate maximum ambient by 10-15 C. The 'E' industrial temperature grade supports -40 C to +125 C operation.
Route the analog ground (VSS, pin 14) directly to a low-impedance ground plane using a wide trace or via stitch to minimize ADC reference noise. Keep switching traces (PWM, ICSP clock) away from the analog pins (RA0-RA5, RC0-RC2) by at least 3x the trace-to-trace spacing. If using the op amps, place guard rings around high-impedance analog input traces to reduce leakage on the TSSOP-14 PCB footprint.
Do not leave unused I/O pins floating on the PIC16F1764-E/ST - configure them as outputs low to minimize sleep-mode current. The MCLR pin (pin 4) must have a pull-up resistor (typically 10 kohm) for normal operation; without it the device will hold in reset. When using the zero-cross detect, add a series current-limiting resistor to the AC mains interface to protect the input pin from transients. Avoid exceeding the absolute maximum VDD of 7 V to prevent latch-up.
The PIC16F1764-E/ST ICSP programming pins (RA0/ICSPDAT, RA1/ICSPCLK) must be isolated from external circuitry during in-circuit programming. Add 4.7 kohm series resistors on these pins if they connect to external components, or use jumpers to disconnect loads during programming. The TSSOP-14 ICSP header layout should follow Microchip's recommended ICD header pinout to maintain signal integrity at 5 V PGD/PGC levels.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; choose AEC-Q100 graded PIC variants for automotive safety applications. Pb-free matte-tin finish, MSL-1 moisture sensitivity.
