PIC16F1768-E/SO - 8-Bit MCU, 32MHz, 7KB Flash, 20-SOIC | Microchip
MPN: PIC16F1768-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.92 | $19.20 |
| 100 | $1.65 | $165.00 |
| 500 | $1.43 | $715.00 |
| 1,000 | $1.24 | $1,240.00 |
PIC16F1768-E/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM/EEPROM), and programmable I/O peripherals on one die. Within the broader hierarchy, the PIC16F1768 sits at microcontroller -> 8-bit MCU -> PIC16 family -> flash-based XLP MCU -> semiconductor. The "XLP" designation marks Microchip's eXtreme Low Power technology platform, which targets battery-powered and energy-harvesting designs with sub-microamp sleep currents and nanoWatt features.
Key features include a 32 MHz internal oscillator, 10-bit ADC with computation (ADC2), two operational amplifiers, zero-cross detect (ZCD) for TRIAC and SCR control, high-current sink/source I/O, and configurable logic cells (CLC) for custom digital interconnects. These features enable sensor conditioning, signal generation, and closed-loop control from a single chip, replacing multi-component analog signal chains.
The PIC16F1768 architecture uses a modified Harvard RISC core with a single-cycle instruction set, allowing deterministic timing for real-time control. The instruction-word length is 14 bits (4K words = 7 KB), and the device includes a 32 MHz internal oscillator with ±1% accuracy over temperature and voltage, removing the need for an external crystal in many applications.
Typical applications include LED lighting drivers with dimming and color-mixing, TRIAC-based AC fan and motor speed controllers, white-goods user interfaces, sensor signal conditioning, and IoT edge nodes. The integrated op amps and 10-bit ADC allow direct interface to thermistors, photodiodes, and current-sense shunts.
When designing with this device, configure the configuration words (CONFIG1/CONFIG2) for the desired oscillator, watchdog timer, brown-out reset, and code-protect settings. The 20-SOIC footprint simplifies hand-prototyping and breadboarded designs while remaining suitable for high-volume SMT assembly with MSL-1 moisture sensitivity.
This page synthesizes distributor pricing (as of 2026-09-20), drop-in alternatives from the PIC16F176x family, and practical design notes not found in the manufacturer datasheet, giving engineers a single, citation-ready reference for component selection.
Drop-in alternatives for PIC16F1768-E/SO — 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 PIC16F1768-E/SO (same form factor and footprint) — differing in ADC, Mounting Type, Operating Temperature, Operational Amplifiers, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1769-E/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.3 / Unit
View Datasheet →PIC16F1765-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1768-I/SO
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1768-E/SP
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1768-E/SO Maximum Ratings & Electrical Characteristics
| Family | PIC® XLP™ 16F |
| Core | 8-bit PIC RISC |
| Max CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| SRAM | 512 bytes |
| EEPROM (Data) | 128 bytes |
| I/O Pins | 18 |
| ADC | 10-bit, with Computation (ADC2) |
| Operational Amplifiers | 2 on-chip |
| Zero-Cross Detect (ZCD) | Yes (1 module) |
| Package | 20-pin SOIC (SO), 7.50 mm body |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E = Industrial) |
| Supply Voltage | 2.3V to 5.5V (PIC16F1768, F-version) |
| Peripheral Highlights | CLC, PWM, CCP, EUSART, MSSP (I2C/SPI), HMI |
| MSL Level | MSL-1 (unlimited floor life per JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC16F1768-E/SO Pin Configuration
| Pin 1 | RA0/DAC/AN0/ULPWU — Bidirectional I/O; DAC output; analog input channel 0; Ultra Low-Power Wake-up input |
| Pin 2 | RA1/AN1 — Bidirectional I/O; analog input channel 1 |
| Pin 3 | RA2/AN2/ZCD — Bidirectional I/O; analog input channel 2; Zero-Cross Detect input |
| Pin 4 | RA3/AN3/Vref+ — Bidirectional I/O; analog input channel 3; ADC positive voltage reference |
| Pin 5 | RA4/AN4/T1G — Bidirectional I/O; analog input channel 4; Timer1 gate input |
| Pin 6 | RA5/MCLR/Vpp — Bidirectional I/O; Master Clear (reset) input; programming voltage input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSC1/CLKIN/RA7 — Crystal oscillator input / external clock input / bidirectional I/O |
| Pin 9 | OSC2/CLKOUT/RA6 — Crystal oscillator output / clock output / bidirectional I/O |
| Pin 10 | RC0/SOSCO — Bidirectional I/O; secondary oscillator output for 32.768 kHz crystal |
| Pin 11 | RC1/SOSCI — Bidirectional I/O; secondary oscillator input for 32.768 kHz crystal |
| Pin 12 | RC2/AN6 — Bidirectional I/O; analog input channel 6 |
| Pin 13 | RC3/AN7 — Bidirectional I/O; analog input channel 7 |
| Pin 14 | RC4 — Bidirectional I/O |
| Pin 15 | RC5 — Bidirectional I/O |
| Pin 16 | RC6 — Bidirectional I/O |
| Pin 17 | RC7 — Bidirectional I/O |
| Pin 18 | VSS — Ground reference (second VSS pin) |
| Pin 19 | VDD — Positive power supply (2.3V to 5.5V) |
| Pin 20 | RB7 — Bidirectional I/O; ICSP programming clock |
Typical Applications
PIC16F1768-E/SO is suitable for 6 applications: LED Lighting Driver with Dimming, AC Fan / Motor Speed Controller (TRIAC-based), Sensor Signal Conditioning Front End, White-Goods User Interface (HMI), IoT Edge Node / Battery Sensor Hub, Battery Charger / Power Bank Controller.
LED Lighting Driver with Dimming
The PIC16F1768-E/SO fits AC-DC LED lighting drivers because its zero-cross detect (ZCD) peripheral natively fires TRIAC dimmer phases while the 10-bit ADC2 reads back current-sense signals from the two on-chip op amps. Place the MCU on the secondary side with the op amps configured as a transimpedance amplifier for current sensing and a difference amplifier for output voltage feedback. The 32 MHz core supports 16-bit PWM at >1 kHz to avoid audible flicker, while the XLP sleep currents under 1 uA make the part viable for standby-power compliance (Energy Star, EU 1194/2012). Use the CLC peripheral to wire ZCD events directly to PWM shutdown for hardware-level TRIAC protection without CPU latency.
Recommended
AC Fan / Motor Speed Controller (TRIAC-based)
The PIC16F1768-E/SO is well matched to phase-angle or zero-cross TRIAC control of small AC induction motors and fans. The integrated ZCD module generates an interrupt at each AC line crossing; firmware then computes a TRIAC firing delay to set RMS voltage. The two on-chip op amps close the speed-control loop by sensing back-EMF or shunt current, while the 10-bit ADC2 with computation performs oversampling and digital filtering without burdening the core. Compared to discrete zero-cross + timer designs, the integrated approach saves 4-6 components and reduces PCB area by ~30%.
Recommended
Sensor Signal Conditioning Front End
The PIC16F1768-E/SO integrates signal conditioning for thermistors, photodiodes, RTDs, and load cells directly on-chip. The two on-chip op amps handle transducer biasing and gain stages (e.g., a Wheatstone-bridge amplifier with gain of 100), and the 10-bit ADC2 with computation block performs oversampling, averaging, and threshold comparison in hardware. For example, an NTC thermistor interface becomes a 3-component circuit (sensor + two resistors) plus the MCU - no external ADC or op-amp IC is required. The XLP sleep modes (less than 100 nA with RTCC running) enable battery-powered environmental sensors that last years on a single CR2032 cell.
Recommended
White-Goods User Interface (HMI)
The PIC16F1768-E/SO is a typical choice for washing-machine, dishwasher, and microwave control panels because it integrates the touch / rotary-encoder input, LED indicators, and a UART link to the main appliance controller in one 20-SOIC part. The MSSP module drives SPI-based LED drivers or character displays, while the EUSART links to the main control board at 9600-115200 baud. The CLC peripheral creates hardware debouncing and event sequencing without firmware overhead, freeing the 32 MHz core to handle UI logic and safety timers.
Recommended
IoT Edge Node / Battery Sensor Hub
The PIC16F1768-E/SO fits coin-cell-powered IoT sensor nodes due to its XLP technology, with sleep currents under 100 nA and a 32 MHz active mode that completes sensor reads in microseconds before returning to sleep. The on-chip op amps and ADC2 enable local sensor conditioning for temperature, humidity, or motion, while the MSSP (I2C) drives an external sensor like the MCP9808 or BMI160. Average system current of 5-10 uA is achievable with 1-second wake intervals, giving multi-year battery life on a CR2032.
Recommended
Battery Charger / Power Bank Controller
The PIC16F1768-E/SO can supervise single-cell Li-ion or Li-Po charging with the on-chip 10-bit ADC reading battery voltage and current via op-amp-conditioned sense resistors. The configurable logic cells (CLC) implement CC/CV transition logic in hardware, providing deterministic and glitch-free state changes. The MSSP drives an I2C fuel gauge (e.g., MCP3421-style), while the EUSART outputs diagnostic data over a TTL debug port. All this fits in the 20-SOIC footprint, leaving the rest of the PCB for power-path MOSFETs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1768-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1769-E/SO | PIC16F1765-E/SO | PIC16F1768-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC (SO) | 20-SOIC (SO) - same | 20-SOIC (SO) - same | 20-SOIC (SO) - same |
| Flash Memory | 7 KB (4K x 14) | 14 KB (8K x 14) | 4 KB (2K x 14) | 7 KB (4K x 14) |
| SRAM | 512 B | 1 KB | 256 B | 512 B |
| Data EEPROM | 128 B | 256 B | 128 B | 128 B |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +125C (Industrial/E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
| Op Amps / ZCD | 2 op amps + 1 ZCD | 2 op amps + 1 ZCD | 2 op amps + 1 ZCD | 2 op amps + 1 ZCD |
Key Differentiators
- Higher memory headroom in the same 20-SOIC footprint (vs PIC16F1765-E/SO)
- Lower per-unit cost at the 7 KB memory tier (vs PIC16F1769-E/SO)
- Wider industrial temperature range (vs PIC16F1768-I/SO)
Design Notes
The PIC16F1768-E/SO has a 2.3V to 5.5V supply range and integrates brown-out reset (BOR) and a low-voltage detect (LVD). Configure BOR with the desired trip voltage in CONFIG1 (BORV<1:0>) and leave the VDDCORE pin (if present on package) decoupled with a 100 nF ceramic cap within 5 mm of the pin. For battery applications using the LF (1.8V-3.6V) variant, enable the on-chip voltage regulator's low-power mode in firmware before sleep to drop quiescent current to sub-100 nA.
Place the decoupling capacitor as close to the VDD pin as possible - within 3 mm of the package body and on the same layer if feasible. Use a 100 nF X7R ceramic in 0402 or 0603 size; add a bulk 1 uF to 4.7 uF tantalum or polymer aluminum cap on the board for transient suppression. Keep the ICSP clock (RB6/ICSPCLK) and data (RB7/ICSPDAT) lines free of series resistors above 100 ohm to ensure reliable in-circuit programming.
Do not leave MCLR floating - tie it to VDD through a 10 kohm pull-up, optionally with a 100 nF cap for noise filtering (cap creates a power-on-reset delay of about 100 ms with 10 kohm). Verify CONFIG1 WDTE<1:0> is set correctly for your application: WDT_DISABLED for predictable timing loops, WDT_32MS to WDT_256S for safety-critical firmware. When using HFINTOSC, the PLL is not required - the 32 MHz is direct; ensure OSCCON<IRCF> matches your expected frequency after reset.
When routing AC-line-coupled signals (e.g., ZCD input on RA2 or op-amp inputs near switching nodes), place a guard ring connected to analog ground around the analog input traces and use a star-ground topology where the analog and digital grounds meet only at the VSS pin. The PIC16F1768's on-chip op amps have input bias currents of ~10 nA - avoid high-impedance (>100 kohm) source impedances without a follower buffer to limit offset voltage drift.
Compliance Information
RoHS compliant per Microchip product page (2026-09-20). Halogen-free per Microchip packaging datasheet. Not AEC-Q100 qualified - choose automotive-grade PIC MCUs from the same family for vehicle applications. MSL-1 moisture sensitivity per JEDEC J-STD-020.
