PIC16F1769-I/SS - 8-Bit MCU, 14KB Flash, 10-bit DAC | Microchip
MPN: PIC16F1769-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.94 | $970.00 |
| 1,000 | $1.72 | $1,720.00 |
| 3,000 | $1.55 | $4,650.00 |
PIC16F1769-I/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/RAM/EEPROM), and programmable peripherals onto one silicon die. Within the broader taxonomy, an 8-bit MCU sits below 16-bit and 32-bit MCUs in arithmetic precision but excels in deterministic real-time control, low power consumption, and low unit cost. The PIC16F1769 belongs to the enhanced mid-range 8-bit family, which adds C-optimized architecture, hardware multiplier, and nanoWatt XLP sleep modes.
Key features include 32 MHz internal oscillator, 1.8-3.6V wide VDD range, 10-bit ADC with up to 12 channels, 10-bit DAC, two on-chip op-amps capable of closed-loop analog signal conditioning, hardware zero-cross detect for TRIAC/triac-dimming, and 50 mA/100 mA sink/source high-current I/O for direct relay and LED drive. The device supports up to 14 KB Flash, 1 KB RAM, and 128 bytes EEPROM, with CLC, NCO, and PWM peripherals for flexible digital signal generation.
From an architecture perspective, the device uses a 14-bit instruction word with a hardware 8x8 multiplier and a 16-level hardware stack, delivering roughly 8 MIPS at 32 MHz. XLP technology provides sub-1 µA sleep currents with brown-out-reset and watchdog timer active, making the device suitable for battery-powered or energy-harvesting systems.
Typical applications include LED lighting with constant-current regulation, TRIAC dimming, switched-mode power supplies with analog compensation loops, motor control (BLDC, stepper, brushed DC), sensor conditioning with on-chip op-amps, and IoT edge nodes running from coin cells. The integrated 10-bit DAC simplifies analog set-point generation for closed-loop control without an external DAC.
When designing with this part, ensure VDD decoupling with a 0.1 µF ceramic capacitor placed within 5 mm of the VDD/SSOP pins, and connect unused high-current I/O to defined logic levels rather than floating. Use ICSP for in-circuit programming and reserve RB6/RB7 or dedicated ICSPCLK/ICSPDAT pins for that purpose.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet, presenting a consolidated view for procurement, engineering, and BOM risk assessment.
Drop-in alternatives for PIC16F1769-I/SS — 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 PIC16F1769-I/SS (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), Data EEPROM, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1768-I/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1719-I/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1718-I/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1619-I/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1709-I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.1 / Unit
View Datasheet →PIC16F1575-I/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1518-I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.2 / Unit
View Datasheet →PIC16F1769-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC enhanced mid-range |
| CPU Speed | 32 MHz (8 MIPS) |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data SRAM | 1 KB |
| Data EEPROM | 128 bytes |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 10-bit, up to 12 channels |
| DAC | 10-bit |
| Operational Amplifiers | 2 on-chip op-amps |
| Zero-Cross Detect | Yes |
| High-Current I/O | 50 mA sink / 100 mA source |
| Package | 20-pin SSOP (5.30 mm body width) |
| Pin Count | 20 |
| Operating Temperature | -40C to +85C (industrial) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F1769-I/SS Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O / ADC input |
| Pin 2 | RA4 — Bidirectional I/O / Timer0 clock input |
| Pin 3 | RA3 — Bidirectional I/O / MCLR input |
| Pin 4 | RC5 — Bidirectional I/O / PWM output |
| Pin 5 | RC4 — Bidirectional I/O |
| Pin 6 | RC3 — Bidirectional I/O / SCL/I2C clock |
| Pin 7 | RC2 — Bidirectional I/O / SDA/I2C data |
| Pin 8 | RC1 — Bidirectional I/O / DAC reference |
| Pin 9 | RC0 — Bidirectional I/O |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RC7 — Bidirectional I/O / high-current |
| Pin 12 | RC6 — Bidirectional I/O / high-current |
| Pin 13 | RB7 — Bidirectional I/O / ICSPDAT |
| Pin 14 | RB6 — Bidirectional I/O / ICSPCLK |
| Pin 15 | RB5 — Bidirectional I/O |
| Pin 16 | RB4 — Bidirectional I/O / interrupt-on-change |
| Pin 17 | RA2 — Bidirectional I/O / analog input |
| Pin 18 | RA1 — Bidirectional I/O / ICSPCLK |
| Pin 19 | RA0 — Bidirectional I/O / ICSPDAT |
| Pin 20 | VDD — Positive supply voltage |
Typical Applications
PIC16F1769-I/SS is suitable for 6 applications: LED Lighting with Constant-Current Regulation, Switched-Mode Power Supply (SMPS) Control, Brushed DC and BLDC Motor Control, Battery-Powered IoT Sensor Nodes, TRIAC-Dim Phase-Cut Lighting Controllers, Sensor Signal Conditioning and Front-Ends.
LED Lighting with Constant-Current Regulation
The PIC16F1769-I/SS is ideal for LED lighting driver applications because its on-chip op-amps can implement closed-loop current sensing and its 10-bit DAC provides analog set-point generation for dimming control. The device's zero-cross detect peripheral simplifies TRIAC-based phase-cut dimming, while the 50 mA/100 mA high-current I/O pins can directly drive MOSFET gates or low-current LED strings. Its 32 MHz CPU bandwidth handles DALI and 0-10V dimming protocols in real time, while XLP Sleep modes reduce standby power below 1 µA for ENERGY STAR compliance in always-on fixtures.
Recommended
Switched-Mode Power Supply (SMPS) Control
The PIC16F1769-I/SS is well-suited for SMPS primary-side control due to its 32 MHz CPU enabling high-resolution digital PWM at frequencies up to 500 kHz, combined with the 10-bit ADC and on-chip op-amps for current-mode compensation. The op-amp's input range and gain-bandwidth product support Type-II and Type-III compensation networks directly on-chip, reducing external analog components. Hardware zero-cross detect aids valley-switching topologies like QR flyback, improving efficiency to above 90 percent. The wide 1.8-3.6V VDD range supports 3.3V auxiliary rails commonly found in digital power systems.
Recommended
Brushed DC and BLDC Motor Control
The PIC16F1769-I/SS handles brushed DC motor control and low-power BLDC motors through its enhanced PWM module with complementary outputs, programmable dead-band, and high-current I/O capable of 100 mA source current for direct gate drive of small MOSFETs. The 10-bit ADC samples back-EMF and current-sense signals at the PWM frequency, while the on-chip op-amps condition Hall-sensor or shunt-current feedback. Its 8 MIPS CPU bandwidth supports sensorless trapezoidal commutation up to several kHz electrical, making it suitable for fans, pumps, and small appliances.
Recommended
Battery-Powered IoT Sensor Nodes
The PIC16F1769-I/SS is a strong fit for battery-powered IoT sensor nodes thanks to its nanoWatt XLP technology delivering sub-20 nA Sleep current with full RAM retention, extending coin-cell battery life to multi-year operation. The integrated 10-bit ADC and two on-chip op-amps condition analog sensors such as thermistors, photodiodes, or load cells without external components. Hardware interrupt-on-change enables wake-on-sensor without CPU intervention, while 1.8V minimum VDD supports direct 2x AA alkaline or single lithium battery operation. The 14 KB Flash accommodates small protocol stacks and calibration data.
Recommended
TRIAC-Dim Phase-Cut Lighting Controllers
The PIC16F1769-I/SS excels at TRIAC-based leading-edge and trailing-edge dimmer applications because its built-in zero-cross detect peripheral synchronizes with the AC line without external circuitry, while the 10-bit ADC reads the dimmer position from a potentiometer or digital input. Its op-amp compares the set-point to filtered output, generating phase-angle control signals that gate the TRIAC through the high-current I/O. The 32 MHz CPU processes leading-edge and trailing-edge algorithms in real time, while XLP Sleep reduces standby dissipation below regulatory limits for wall-switch form factors.
Recommended
Sensor Signal Conditioning and Front-Ends
The PIC16F1769-I/SS is well-suited for analog sensor front-end designs because its two on-chip op-amps implement instrumentation, filtering, or transimpedance stages without external active components. The 10-bit ADC with up to 12 channels multiplexes multiple sensor inputs through the same amplifier chain, while the 10-bit DAC generates bias or excitation voltages for bridge sensors. Combined with the 14 KB Flash for calibration coefficients and linearization algorithms, the device forms a complete sensor conditioner in a single SSOP-20 package, ideal for industrial transmitters and medical monitoring peripherals.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1769-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1768-I/SS | PIC16F1719-I/SS | PIC16F1718-I/SS | PIC16F1619-I/SS | PIC16F1709-I/SS |
|---|---|---|---|---|---|---|
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 7 KB | 28 KB | 14 KB | 14 KB | 14 KB |
| RAM | 1 KB | 512 bytes | 2 KB | 1 KB | 1 KB | 1 KB |
| EEPROM | 128 bytes | 128 bytes | 256 bytes | 128 bytes | 128 bytes | 128 bytes |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-chip Op-Amps | 2 | 2 | 2 | 1 | 2 | 0 |
| DAC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Zero-Cross Detect | Yes | Yes | Yes | No | Yes | No |
Key Differentiators
- Dual on-chip operational amplifiers (vs PIC16F1709-I/SS)
- Built-in zero-cross detect peripheral (vs PIC16F1575-I/SS)
- Optimal 14 KB Flash for mid-range firmware (vs PIC16F1768-I/SS)
Design Notes
Decouple VDD with a 0.1 µF ceramic capacitor placed within 5 mm of the SSOP-20 VDD pin and a bulk 1-10 µF tantalum or aluminum capacitor near the IC for transient load response. The wide 1.8-3.6V range supports direct battery operation but verify the fmax vs VDD curve in datasheet DS40001839B section 30: above 8 MHz operation below 2.5V may require reduced instruction cycle. AVSS and VSS must be tied to a clean ground plane, and AGND/VSS separation is recommended when the internal ADC is in active use to minimize digital switching noise coupling.
Reserved: When migrating from PIC16F1768 to PIC16F1769 firmware, verify Flash usage does not exceed the 7 KB boundary of the lower-memory device. Unused high-current I/O pins must be set to defined logic levels (LATCH register) rather than left floating; floating high-current outputs can source/sink significant current and cause unexpected power consumption. MCLR must be tied to VDD through a 10 kΩ resistor or driven by a supervisor; leaving MCLR floating causes erratic resets.
For SSOP-20 layout, use a 0.65 mm pitch land pattern with at least 0.4 mm pad width per IPC-7351 nominal-density guidelines. Place the ICSP connector footprint (5-pin header for ICSPCLK, ICSPDAT, VPP, VDD, VSS) near the device on the board edge for programming access. Keep analog traces (op-amp inputs, ADC channels, DAC output) routed over a continuous ground plane away from PWM and switching signals to maintain signal integrity for the 10-bit ADC's ~1 LSB noise floor.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade part. AEC-Q100 automotive variants may be available under different ordering codes; consult Microchip for automotive-grade options.
