PIC16LF1764-E/P - 8-bit MCU, 7KB Flash, 32MHz, 14-PDIP | Microchip
MPN: PIC16LF1764-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.78 | $1.78 |
| 10 | $1.6 | $16.00 |
| 100 | $1.42 | $142.00 |
| 500 | $1.24 | $620.00 |
| 1,000 | $1.1 | $1,100.00 |
PIC16LF1764-E/P Overview
A PIC microcontroller (Programmable Interface Controller, also called Peripheral Interface Controller) is a family of low-power 8-bit Harvard-architecture microcontrollers from Microchip Technology. PIC MCUs integrate CPU core, Flash program memory, SRAM, EEPROM, timers, ADC, comparators, and communication peripherals into a single chip; they sit in the broader category hierarchy of microcontroller -> embedded processor -> semiconductor IC. The PIC16 family specifically targets cost-sensitive, low-power, mixed-signal applications where 8-bit processing is sufficient and where on-chip intelligent analog (op amps, comparators, slope compensation) reduces external component count.
Key features of the PIC16LF1764-E/P include 7KB (4K x 14) Flash, 512 bytes SRAM, 10-bit ADC with multiple channels, dual operational amplifiers, programmable ramp generator, slope compensation, zero-cross detect, and Microchip's eXtreme Low Power (XLP) technology. The device provides intelligent analog peripherals that can be interconnected via internal fabric to create closed-loop control channels without external glue logic.
The 14-pin PDIP package is well-suited to hand-prototyping, hobbyist projects, and through-hole production assemblies where lead-bending reliability and socket replacement are required. The wide operating voltage (1.8V-3.6V) and ultra-low XLP sleep currents make it attractive for battery-powered sensors and energy-harvesting applications.
Typical applications include LED lighting drivers (using the on-chip op amps and PWM for constant-current control), closed-loop SMPS control, battery chargers, sensor signal conditioning, low-power IoT edge nodes, and small motor controllers. The on-chip op amps and slope-compensation modules allow direct implementation of peak current-mode control in a single MCU.
When designing with this part, ensure the chosen programmer/debugger (PICkit 3, PICkit 4, MPLAB Snap, or ICD 4) supports the PIC16F176x device family. The 'E' temperature grade means the device is qualified for -40C to +125C, suitable for outdoor and industrial deployments but not for AEC-Q100 automotive.
This page synthesizes distributor pricing from 9 sources, parametric drop-in alternatives from the same PIC16 family, and practical design notes that complement the manufacturer datasheet.
Drop-in alternatives for PIC16LF1764-E/P — 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 PIC16LF1764-E/P (same form factor and footprint) — differing in ADC, DAC, Mounting Type, Package, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1765-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1764-E/P
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF1704-E/P
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16LF1707-E/P
✅ Drop-In✓ In Stock
$0.96 / Unit
View Datasheet →PIC16LF1713-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1574-E/P
✅ Drop-In✓ In Stock
$1.24 / Unit
View Datasheet →PIC16LF1764-E/P Maximum Ratings & Electrical Characteristics
| Core | 8-bit PIC16 |
| Program Memory (Flash) | 7 KB (4K x 14) |
| RAM | 512 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| ADC | 10-bit |
| On-chip Op Amps | Yes (2x) |
| Package | 14-pin PDIP (P) |
| Pin Count | 14 |
| Mounting Type | Through-Hole |
| Operating Temperature | -40C to +125C (E grade) |
| Series | PIC XLP 16F |
| Low Power Technology | XLP (eXtreme Low Power) |
| RoHS Status | Compliant |
| Connectivity Peripherals | I2C, SPI, UART (per family datasheet) |
| Number of I/O Pins | 11 (typical for 14-pin PIC16F1764 family) |
PIC16LF1764-E/P Pin Configuration
| Pin 1 | VDD — Positive power supply (1.8V to 3.6V) |
| Pin 2 | RA5 — Digital I/O / analog input / DAC output |
| Pin 3 | RA4 — Digital I/O / analog input |
| Pin 4 | RA3/MCLR — Digital input / Master Clear (reset) input |
| Pin 5 | RC5 — Digital I/O / analog input |
| Pin 6 | RC4 — Digital I/O / analog input |
| Pin 7 | RC3 — Digital I/O / analog input |
| Pin 8 | RC2 — Digital I/O / analog input |
| Pin 9 | RC1 — Digital I/O / analog input |
| Pin 10 | RC0 — Digital I/O / analog input |
| Pin 11 | RA2 — Digital I/O / analog input |
| Pin 12 | RA1 — Digital I/O / analog input / op-amp input |
| Pin 13 | RA0 — Digital I/O / analog input / op-amp input |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16LF1764-E/P is suitable for 6 applications: LED Lighting Drivers, Closed-Loop SMPS Control, Battery Chargers, Sensor Signal Conditioning Hubs, Small Motor Control (Brushed DC / Stepper), IoT Edge Sensor Nodes.
LED Lighting Drivers
The PIC16LF1764-E/P fits LED lighting driver designs because its two on-chip operational amplifiers and programmable ramp generator directly support constant-current LED control without external analog ICs. The 32 MHz CPU speed and PWM peripherals allow dimming and color-mixing algorithms, while the 1.8V-3.6V LF supply range simplifies 2xAA/3xAA battery designs. In a typical 350 mA buck-LED driver, the MCU samples the current-sense op amp at 100 kHz, computes a duty cycle via firmware, and adjusts the FET gate each PWM cycle. The 7 KB Flash is ample for state-machine dimming logic and temperature-foldback routines. Compared with external op-amp + MCU solutions, this single-chip approach reduces BOM by two to three parts and improves reliability by eliminating inter-IC analog connections.
Recommended
Closed-Loop SMPS Control
The PIC16LF1764-E/P suits switched-mode power supply primary-side control loops because the on-chip op amps, slope compensation hardware, and programmable ramp generator together implement peak current-mode control in firmware-less analog fabric. With 32 MHz CPU, the MCU can supervise soft-start, over-current protection, and adaptive dead-time insertion while the analog peripherals handle the high-speed current loop. The 1.8V-3.6V supply is convenient for auxiliary VCC derived from a 5V or 12V rail through a low-dropout regulator. In a 50 W flyback converter, this MCU can replace a UC3842-style analog controller plus supervisory MCU with a single chip, reducing part count and improving fault response time to under 1 us via hardware-triggered shutdown. The 7 KB Flash holds state machine, fault handling, and digital communication stack (UART/I2C for telemetry).
Recommended
Battery Chargers
The PIC16LF1764-E/P is well-matched to lithium-ion or NiMH battery charger designs where its 10-bit ADC monitors battery voltage and current, its op amps condition sense signals, and its PWM drives the charging FET. The 1.8V-3.6V LF supply is compatible with single-cell Li-ion operation, eliminating the need for an extra boost stage. In a CC/CV charger for a 1S Li-ion pack, the MCU samples Vbat every 10 ms via ADC, computes the CC-CV transition, and adjusts duty cycle in firmware. The on-chip comparators provide hardware over-voltage and over-current protection independent of CPU latency. With 7 KB Flash, full CC/CV state machines plus JEITA-style temperature safety logic fit comfortably. Sleep currents under 100 nA (XLP) extend shelf life when the product is unplugged.
Recommended
Sensor Signal Conditioning Hubs
The PIC16LF1764-E/P works as a sensor signal conditioning hub where the two on-chip op amps provide first-stage analog amplification for bridge-type sensors (load cells, pressure transducers) before the 10-bit ADC digitizes. The 32 MHz CPU and 7 KB Flash host linearization, temperature compensation, and I2C/SPI host communication. With XLP sleep currents under 100 nA, the device can wake on a threshold-crossing event, take one ADC reading, and return to sleep, extending battery life by 10-100x compared with always-on designs. In a wireless HVAC pressure-sensor node, this MCU combines with a low-power radio to deliver multi-year coin-cell operation. The 14-pin PDIP package makes through-hole sensor-board prototypes easy to rework during field tuning.
Recommended
Small Motor Control (Brushed DC / Stepper)
The PIC16LF1764-E/P drives small brushed DC or stepper motors where its PWM peripherals generate phase signals, the on-chip op amps sense current, and the 10-bit ADC provides back-EMF feedback for closed-loop speed control. The 32 MHz CPU executes trapezoidal or microstepping commutation tables in firmware. In a small peristaltic pump or valve actuator, this MCU replaces a separate MCU + motor-driver pair, reducing PCB area by approximately 40 percent. With 7 KB Flash, the firmware fits ramp profiles, current limits, and RS-485 or UART telemetry. The 1.8V-3.6V supply suits USB-powered or 2xAA battery motion-control designs commonly used in portable medical and laboratory equipment.
Recommended
IoT Edge Sensor Nodes
The PIC16LF1764-E/P suits low-power IoT edge sensor nodes where the MCU aggregates a small set of analog sensor inputs, performs local thresholding, and forwards data over UART/SPI to a host radio. With XLP sleep current under 100 nA, the device spends most of its life asleep, waking briefly to digitize and transmit. The 1.8V-3.6V LF supply is matched to coin-cell or 2xAAA battery operation; the part survives brownouts down to 1.8V without spurious reset. In a wireless soil-moisture node, the MCU reads a capacitive sensor via the on-chip op amp, computes a moving average, and sends a 4-byte packet every 5 minutes via a companion radio such as the MRF24J40 or RN2483. The 14-pin PDIP package allows through-hole assembly of prototype sensor boards on breadboard.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1764-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1765-E/P | PIC16F1764-E/P | PIC16LF1704-E/P | PIC16LF1707-E/P | PIC16LF1713-E/P |
|---|---|---|---|---|---|---|
| Package | 14-pin PDIP | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 2.3V to 5.5V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB |
| RAM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-chip Op Amps | 2 | 2 | 2 | 0 (no op amps) | 0 | 1 |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Pin Count | 14 | 14 | 14 | 14 | 14 | 14 |
Key Differentiators
- Includes 2 on-chip operational amplifiers (vs PIC16LF1704-E/P)
- Intelligent analog peripherals in low-pin-count package (vs PIC16LF1707-E/P)
- Lower-voltage 1.8V operation extends battery life (vs PIC16F1764-E/P)
Design Notes
The PIC16LF1764-E/P 'LF' variant operates from 1.8V to 3.6V, lower than the 2.3V-5.5V of the non-L PIC16F1764. Do not power the LF version from a 5V rail; this will permanently damage the part. If 5V compatibility is required, choose the PIC16F1764-E/P instead. The XLP sleep current is rated under 100 nA with the watchdog disabled, which makes coin-cell designs practical.
Place a 100 nF decoupling capacitor as close to the VDD pin (pin 1) and VSS pin (pin 14) as possible, with trace length kept under 5 mm. For battery-powered designs, add a 10 uF bulk capacitor near VDD to handle inrush during radio transmission events. Keep the MCLR/RA3 pin (pin 4) trace short; if not used for reset, pull it high through a 10 kohm resistor to prevent spurious resets from noise.
Configuration bits must be set correctly to select the internal 32 MHz HFINTOSC vs. an external crystal. Forgetting to configure FOSC bits results in a missing CPU clock. When migrating code between LF and non-L variants, verify that any ADC reference voltage (e.g., 4.096V) does not exceed 3.6V on the LF part. Always review the 'Electrical Specifications' chapter of the PIC16(L)F1764/5/8/9 datasheet for absolute maximums.
The on-chip op amps are unity-gain stable but have limited GBW (~3 MHz typical). Avoid using them above 100 kHz in high-gain configurations, or expect rolled-off response. For ADC sampling, allow at least 1 us acquisition time after switching the channel, particularly when the source impedance exceeds 5 kohm. Use the ADCON1 register's ACQT bits to program adequate acquisition time.
Compliance Information
RoHS and REACH compliant per Microchip product page; lead-free and halogen-free. E temperature grade (-40C to +125C) suitable for industrial applications but not AEC-Q100 qualified for automotive.
