PIC16F1769T-I/SO - 8-Bit MCU, 14KB Flash, 32MHz, 20-SOIC | Microchip
MPN: PIC16F1769T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.67 | $16.70 |
| 100 | $1.49 | $149.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
| 3,000 | $1.02 | $3,060.00 |
PIC16F1769T-I/SO Overview
A PIC16 microcontroller is an 8-bit RISC microcontroller based on Microchip's enhanced mid-range core architecture, combining a small instruction set with rich peripheral integration. Within the broader taxonomy, PIC16 sits inside the PIC family of microcontrollers, which itself belongs to the microcontroller category under integrated circuits (ICs) and embedded systems. The 176x sub-family extends this base with on-chip op amps, DACs, and high-current drive capability, allowing a single MCU to implement signal conditioning, closed-loop control, and drive external loads.
Key features include 14KB Flash, 1KB RAM, 32 MHz CPU performance (8 MIPS), 18 I/O pins, internal oscillator, 10-bit ADC with multiple channels, 10-bit DAC, two on-chip op amps, zero-cross detect, high-current I/O drivers, and integrated PWM/CCP/SMT peripherals. The device supports both 3.3V and 5V operation and includes nanoWatt XLP technology for low-power sleep modes well below 1 uA.
The PIC16F1769 uses an enhanced mid-range 8-bit RISC core with a hardware multiplier, 49 instructions, and a 16-level hardware stack. Its analog integration (10-bit ADC, 10-bit DAC, two op amps, comparators, and zero-cross detect) lets designers build closed-loop analog control loops using only the MCU, reducing BOM and PCB area. eXtreme Low Power (XLP) technology with multiple sleep modes and a low-power watchdog enables battery lifetimes measured in years on coin cells.
Typical applications include LED lighting control, switched-mode power supply secondary-side control, battery chargers, sensor signal conditioning, motor control, fan control, and small home appliances. Designers particularly value the on-chip op amps for current sensing and the 10-bit DAC for reference generation in closed-loop systems.
When designing with this MCU, allocate the analog and digital supply pins separately and follow Microchip's decoupling recommendations (typically 0.1 uF + 10 uF) directly at VDD/VSS. For high-current I/O loads above 25 mA per pin, use external transistors because sustained high drive reduces reliability. The 20-pin SOIC footprint gives generous board real estate for hand prototyping and rework compared to QFN packages.
This page synthesizes distributor pricing (DigiKey/Mouser/LCSC), same-brand Microchip drop-in alternatives in SOIC, and practical design notes not found in the manufacturer datasheet summary.
Drop-in alternatives for PIC16F1769T-I/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 PIC16F1769T-I/SO (same form factor and footprint) — differing in ADC, DAC, I/O Pins, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1769-I/SO
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →PIC16F1769-E/SO
✅ Drop-In✓ In Stock
$1.3 / Unit
View Datasheet →PIC16F1768T-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1768-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1709-I/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.38 / Unit
View Datasheet →PIC16F1769T-I/SO Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data Memory (SRAM) | 1 KB |
| Maximum CPU Frequency | 32 MHz |
| Instruction Set Width | 14-bit |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 18 |
| ADC | 10-bit |
| DAC | 10-bit |
| On-Chip Op Amps | 2 |
| Zero-Cross Detect | Yes |
| High-Current I/O | Yes |
| Comparators | Yes (peripheral) |
| PWM Modules | Yes (peripheral) |
| Package | 20-SOIC (7.50 mm) |
| Operating Temperature | -40C to +85C (industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Low-Power Technology | nanoWatt XLP |
PIC16F1769T-I/SO Pin Configuration
| Pin 1 | RA0/ICDDAT — Bidirectional I/O / ICSP data; analog input channel |
| Pin 2 | RA1 — Bidirectional I/O; analog input channel |
| Pin 3 | RA2 — Bidirectional I/O; analog input channel |
| Pin 4 | RA3/MCLR/VPP — Input only / Master Clear (reset) / programming voltage |
| Pin 5 | RA4 — Bidirectional I/O; analog input channel |
| Pin 6 | RA5 — Bidirectional I/O; analog input channel |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RB4 — Bidirectional I/O with interrupt-on-change |
| Pin 9 | RB5 — Bidirectional I/O with interrupt-on-change |
| Pin 10 | RB6/ICSPCLK — Bidirectional I/O / ICSP clock; programming/debug |
| Pin 11 | RB7 — Bidirectional I/O with interrupt-on-change |
| Pin 12 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| Pin 13 | RC0 — Bidirectional I/O; analog input channel |
| Pin 14 | RC1 — Bidirectional I/O; analog input channel |
| Pin 15 | RC2 — Bidirectional I/O; analog input channel |
| Pin 16 | RC3 — Bidirectional I/O; analog input channel |
| Pin 17 | RC4 — Bidirectional I/O |
| Pin 18 | RC5 — Bidirectional I/O |
| Pin 19 | RC6 — Bidirectional I/O; UART TX |
| Pin 20 | RC7 — Bidirectional I/O; UART RX |
Typical Applications
PIC16F1769T-I/SO is suitable for 6 applications: LED Lighting Control, Switched-Mode Power Supply (SMPS) Secondary-Side Control, Battery Chargers (Li-Ion / Lead-Acid), Fan and Motor Speed Control, Sensor Signal Conditioning Hubs, Small Home Appliances (Coffee Makers, Toasters, Air Purifiers).
LED Lighting Control
The PIC16F1769T-I/SO fits LED lighting control because its two on-chip op amps handle current sensing, the 10-bit DAC provides smooth dimming references, and zero-cross detect enables TRIAC phase-cut dimming. At 32 MHz it executes the closed-loop brightness algorithm at >1 kHz loop bandwidth with negligible audible flicker. Place the op amp outputs to the ADC channels and drive the MOSFET gate from a PWM peripheral, all without external op-amp ICs. The XLP sleep modes cut standby power below 100 nA in off-state lighting.
Recommended
Switched-Mode Power Supply (SMPS) Secondary-Side Control
For SMPS secondary-side regulation, the PIC16F1769T-I/SO's 32 MHz CPU executes voltage-mode or peak-current-mode control loops in real time, while the 10-bit ADC samples Vout and I-sense at >100 kS/s. The op amps condition current-sense signals directly, eliminating one external IC. A complementary PWM peripheral drives the synchronous rectifier optocoupler. This part replaces legacy analog UCx-x controllers with a programmable digital control that enables firmware-updatable voltage setpoints and dynamic load response tuning.
Recommended
Battery Chargers (Li-Ion / Lead-Acid)
The PIC16F1769T-I/SO is well suited for battery chargers thanks to its 10-bit ADC for voltage/current monitoring, the 10-bit DAC for programmable current references, and two op amps for current-shunt amplification and battery voltage scaling. The 32 MHz CPU implements CC-CV charge profiles with temperature-compensated termination algorithms. XLP nanoWatt modes reduce quiescent drain to under 1 uA when the charger is idle, preserving shelf life on packaged products.
Recommended
Fan and Motor Speed Control
In BLDC or brushed DC fan control, the PIC16F1769T-I/SO uses the zero-cross detect to sense rotor position on sensorless designs and the high-current I/O pins to drive small MOSFET gates directly, reducing gate-driver cost. The op amps amplify back-EMF for closed-loop speed regulation, while the 10-bit DAC generates the reference voltage for the speed setpoint. PWM at 32 MHz provides 8-bit resolution at 125 kHz switching frequency, enabling quiet fan operation below 20 kHz audible range.
Recommended
Sensor Signal Conditioning Hubs
The PIC16F1769T-I/SO acts as an IoT sensor hub by amplifying weak sensor outputs via its two on-chip op amps, digitizing with the 10-bit ADC, and transmitting via UART/I2C/SPI. Industrial -40C to +85C operation tolerates factory-floor environments. The on-chip DAC provides excitation references for ratiometric bridges (load cells, pressure sensors), so a single MCU replaces separate op-amp + ADC + reference ICs. Combined XLP sleep modes extend battery life in wireless sensor nodes to multi-year ranges.
Recommended
Small Home Appliances (Coffee Makers, Toasters, Air Purifiers)
In small home appliances, the PIC16F1769T-I/SO controls heating elements via PWM and TRIAC drivers, reads NTC thermistor temperatures with the 10-bit ADC, and uses zero-cross detect for zero-voltage switching to reduce EMI. The two op amps handle bridge-type weight sensors in coffee grinders or current-sense for heater control. Industrial temperature rating ensures reliable kitchen-appliance operation, while SOIC packaging supports hand-rework for low-volume SKUs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1769T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1769-I/SO | PIC16F1769-E/SO | PIC16F1768T-I/SO | PIC16F1709-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC | 20-SOIC (same) | 20-SOIC (same) | 20-SOIC (same) | 20-SOIC (same) |
| Flash Memory | 14 KB | 14 KB | 14 KB | 8 KB | 14 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-Chip Op Amps | 2 | 2 | 2 | 2 | 0 (no op amps) |
| DAC | 10-bit | 10-bit | 10-bit | 10-bit | 8-bit |
| Zero-Cross Detect | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
Key Differentiators
- On-chip 10-bit DAC plus two op amps reduce external IC count (vs PIC16F1709-I/SO)
- 14 KB Flash supports bootloader headroom and larger firmware (vs PIC16F1768T-I/SO)
- Zero-cross detect peripheral eliminates external TRIAC drivers (vs PIC16F1709-I/SO)
Design Notes
Per the Microchip PIC16F176x datasheet, decouple VDD with a 0.1 uF ceramic capacitor placed within 5 mm of the VDD pin, plus a bulk 10 uF tantalum or aluminum electrolytic on the same supply rail. The MCU's analog and digital VDD pins are internally bonded; however, ferrite-bead isolation between analog and digital rails is recommended when driving the on-chip ADC and DAC at high update rates to avoid digital switching noise coupling into analog references. Estimate: for a 32 MHz CPU at 3.3 V active current ~3 mA, the bulk capacitor holds VDD within 5% during a 50 mA transient from a co-located LED driver.
Place the ICSP programming header (RA0/ICSPCLK, RA1/ICSDAT, RA3/MCLR) at the board edge so that production programming and debug probes can access the device without removing the MCU. Route the 32 MHz crystal traces (if used) as short and symmetric as possible, with ground guard traces on both sides. Keep the high-current I/O traces (those driving LEDs or relays) away from the on-chip op amp inputs to prevent digital switching noise from corrupting low-level analog measurements. Recommended: keep analog input traces <25 mm and surround them with a ground pour.
Do not omit the decoupling capacitor on VDD - brownouts during ADC conversions are the most common field failure on PIC16 designs. Do not drive the high-current I/O pins above their rated 25 mA source/sink continuously; sustained high drive accelerates electromigration. The 'I' (industrial) and 'E' (extended) suffixes denote temperature grades - using the 'I' part in an automotive under-hood environment will cause thermal-shutdown-style failures. The zero-cross detect peripheral requires the AC mains to be safely isolated; do not route mains voltage directly to any pin.
Compliance Information
RoHS and REACH compliance per Microchip product page. Industrial -40C to +85C temperature grade ('I' suffix); not AEC-Q100 qualified - use AEC-Q100 equivalent PIC16F1769-E/SO for under-hood automotive.
