PIC16F1769T-I/SS - 14KB Flash 8-Bit MCU 20-SSOP | Microchip
MPN: PIC16F1769T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.84 | $2.84 |
| 10 | $2.55 | $25.50 |
| 100 | $2.27 | $227.00 |
| 500 | $2.02 | $1,010.00 |
| 1,000 | $1.78 | $1,780.00 |
PIC16F1769T-I/SS Overview
An 8-bit microcontroller (MCU) is a compact programmable processor that integrates a CPU, memory, and peripherals on a single silicon die. Within the broader semiconductor taxonomy, MCUs sit inside the embedded IC category, alongside DSPs and FPGAs, but are optimized for low-power deterministic control tasks. The PIC16F1769T-I/SS belongs to Microchip's enhanced mid-range PIC16 core family, which combines a RISC architecture with intelligent analog and digital peripherals, targeting cost-sensitive applications that still require signal conditioning, sensor interfacing, or driving power stages.
Key features include a 10-bit Analog-to-Digital Converter (ADC) with multiple channels, integrated op-amps for on-chip signal conditioning, a 10-bit Digital-to-Analog Converter (DAC), zero-cross detect (ZCD) for AC line synchronization, high-current I/O pins capable of directly driving LEDs or relays, and the eXtreme Low Power (XLP) technology that delivers nanoWatt sleep currents. The device offers up to 18 general-purpose I/O pins and includes Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), and Signal Measurement Timer (SMT), which offload tasks from the CPU.
The architecture is based on a 14-bit instruction word enhanced mid-range core with a hardware multiplier, 16-level stack, and interrupt controller. The internal 32 MHz oscillator and 4x Phase-Locked Loop (PLL) eliminate the need for external clocking components. The CIPs allow designers to implement functions such as sensor-fused motor control, capacitive touch sensing, and power conversion feedback loops entirely in hardware, freeing the CPU for application logic and communication.
Typical applications include LED lighting controllers, AC zero-cross switching, sensor signal conditioning, small motor control, and general-purpose embedded control in industrial, appliance, and consumer products. The combination of analog integration and digital peripherals makes this part especially attractive for applications that previously required multiple discrete components.
When designing with the PIC16F1769T-I/SS, ensure the 20-SSOP footprint's thermal copper area is sufficient for the operating ambient and that unused I/O pins are configured as outputs low to minimize current draw. Designers should also leverage the MPLAB X IDE ecosystem with the XC8 compiler and the MPLAB Code Configurator (MCC) for rapid peripheral setup.
This page synthesizes distributor pricing, drop-in package alternatives from the same PIC16F176X family, and practical design notes not found in the manufacturer datasheet, providing an engineer-focused reference beyond typical distributor listings.
Drop-in alternatives for PIC16F1769T-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 PIC16F1769T-I/SS (same form factor and footprint) — differing in Package, ADC, DAC, Core Architecture, Data EEPROM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1769-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16F1769-E/SS
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16F1769T-E/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1769-H/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1768-I/SS
✅ Drop-In✓ In Stock
$1.31 / Unit
View Datasheet →PIC16F1708-I/SS
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16F1769T-I/SS Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit enhanced mid-range |
| Family | PIC16F176X |
| Program Memory Size | 14 KB (8K x 14 words) |
| RAM | 1 KB |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Number of I/O Pins | 18 |
| ADC | 10-bit, multi-channel |
| DAC | 10-bit |
| Integrated Op-Amps | Yes |
| Zero-Cross Detect | Yes |
| High-Current I/O | Yes |
| Package | 20-SSOP (0.209 inch / 5.30 mm width) |
| Mounting Type | Surface Mount (Tape & Reel) |
| Operating Temperature Range (I grade) | -40 C to +85 C |
| MSL Level | 1 (per Microchip) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F1769T-I/SS Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O with ADC and op-amp input capability |
| Pin 2 | RA4 — Bidirectional I/O with op-amp output capability |
| Pin 3 | RA3 — Bidirectional I/O (also ICSPCLK) with ADC input |
| Pin 4 | RA2 — Bidirectional I/O with ADC and op-amp input capability |
| Pin 5 | RA1 — Bidirectional I/O with ADC input capability |
| Pin 6 | RA0 — Bidirectional I/O with ADC and ICSPDAT capability |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA7 — Bidirectional I/O with OSCI/CLKIN capability |
| Pin 9 | RA6 — Bidirectional I/O with OSCO/CLKOUT capability |
| Pin 10 | RC0 — Bidirectional I/O with DAC and op-amp input |
| Pin 11 | RC1 — Bidirectional I/O with DAC and op-amp input |
| Pin 12 | RC2 — Bidirectional I/O with ADC and PWM capability |
| Pin 13 | RC3 — Bidirectional I/O with PWM capability |
| Pin 14 | RC4 — Bidirectional I/O with ADC capability |
| Pin 15 | RC5 — Bidirectional I/O with ADC and PWM capability |
| Pin 16 | RC6 — Bidirectional I/O with ZCD and ADC capability |
| Pin 17 | RC7 — Bidirectional I/O with ZCD and ADC capability |
| Pin 18 | RB7 — Bidirectional I/O with ICSP programming capability |
| Pin 19 | VSS — Ground reference (secondary VSS pin) |
| Pin 20 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
Typical Applications
PIC16F1769T-I/SS is suitable for 6 applications: AC Zero-Cross Lighting Dimmer, Sensor Signal Conditioning Front-End, Small Brushless DC Motor Controller, Capacitive Touch User Interface, Battery-Powered IoT Sensor Node, Appliance Control Panel.
AC Zero-Cross Lighting Dimmer
The PIC16F1769T-I/SS is well-suited for AC line-powered lighting dimmers thanks to its integrated zero-cross detect (ZCD) peripheral and 10-bit ADC for phase-angle feedback. Operating at 32 MHz, the part can precisely time TRIAC firing pulses synchronized to the AC line crossing, enabling smooth phase-controlled dimming of incandescent, LED, and halogen loads. The on-chip op-amps condition the ZCD signal directly, eliminating external circuitry. According to the Microchip datasheet, the 14 KB Flash is ample for state-machine-based dimming algorithms, soft-start ramps, and DMX-512 protocol stacks. The XLP nanoWatt sleep mode enables standby power below 100 nA for energy-star compliance.
Recommended
Sensor Signal Conditioning Front-End
The PIC16F1769T-I/SS combines on-chip op-amps, a 10-bit ADC, and a 10-bit DAC to form a complete sensor signal-conditioning front-end in a single 20-SSOP device. The integrated op-amps can be configured as instrumentation, transimpedance, or programmable gain stages, allowing direct connection to bridge sensors, photodiodes, or thermocouples without external amplifiers. According to the PIC16F176X datasheet, the Configurable Logic Cells (CLC) and Signal Measurement Timer (SMT) provide hardware-level pulse counting and zero-cross measurement, offloading the CPU. With 1 KB RAM and 14 KB Flash, designers can implement linearization, calibration, and I2C/SPI sensor-fusion algorithms for industrial sensor nodes.
Recommended
Small Brushless DC Motor Controller
The PIC16F1769T-I/SS can drive small BLDC or stepper motor control loops using its Complementary Waveform Generator (CWG) and 10-bit ADC for back-EMF sensing. Operating at 8 MIPS effective throughput, the part can execute sensorless commutation routines at speeds up to several thousand RPM. According to Microchip application notes, the CWG produces center-aligned or edge-aligned PWM with dead-band control suitable for 3-phase inverter bridges, while the 18 high-current I/O pins can directly drive low-side FET gates through small gate resistors. The 14 KB Flash holds lookup tables for sine commutation profiles and PID loop coefficients.
Recommended
Capacitive Touch User Interface
The PIC16F1769T-I/SS supports mTouch capacitive touch sensing through its CVD (Capacitive Voltage Divider) front-end and 10-bit ADC, eliminating the need for dedicated touch controller ICs. With up to 18 I/O channels, designers can implement multi-button or slider interfaces with proximity wake-up behavior, all within the 20-SSOP footprint. According to Microchip's touch sensing library documentation, the CLC peripheral can combine touch events to produce debounced gestures before the CPU wakes from XLP sleep. The 1 KB RAM is sufficient for sliding-filter history and gesture state machines typical of consumer appliances.
Recommended
Battery-Powered IoT Sensor Node
The PIC16F1769T-I/SS is ideal for IoT sensor nodes thanks to its XLP technology delivering nanoWatt sleep currents and its ability to wake on ADC, op-amp comparator, or zero-cross events without CPU intervention. The 2.3 V to 5.5 V operating range accommodates direct connection to 1S and 2S lithium battery stacks. According to Microchip's XLP benchmark data, sleep current below 50 nA enables multi-year battery life on a single CR2032 cell for duty-cycled sensor reporting. The 14 KB Flash fits BLE pairing/commissioning routines and proprietary sub-GHz stacks via SPI to companion radios.
Recommended
Appliance Control Panel
The PIC16F1769T-I/SS drives white-goods appliance control panels where integrated op-amps condition temperature or pressure sensor inputs, the 10-bit DAC provides analog reference outputs, and the high-current I/O pins directly drive LED indicators and buzzer transducers. The 20-SSOP industrial temperature grade ensures reliable operation in -40 C to +85 C kitchen and laundry environments. According to Microchip application notes, the CLC and CWG peripherals can implement safety interlocks and PWM-driven triac or relay actuation in hardware, reducing firmware complexity and improving IEC 60730 class B compliance for household appliances.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1769T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1769-I/SS | PIC16F1769-E/SS | PIC16F1768-I/SS | PIC16F1708-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Flash Memory | 14 KB | 14 KB | 14 KB | 7 KB (-50%) | 7 KB (-50%) |
| RAM | 1 KB | 1 KB | 1 KB | 512 B (-50%) | 512 B (-50%) |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 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 |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C |
| Integrated Op-Amps | Yes (multiple) | Yes (multiple) | Yes (multiple) | Yes (fewer channels) | Yes (fewer channels) |
| Packaging Format | Tape & Reel | Tray | Tube | Tube | Tube |
Key Differentiators
- Largest Flash memory in the PIC16F176X SSOP family (vs PIC16F1768-I/SS)
- Extended temperature grade option for harsh environments (vs PIC16F1769-I/SS)
- More op-amp channels than lower-tier siblings (vs PIC16F1708-I/SS)
Design Notes
Estimated: For battery applications, the XLP sleep current is approximately 30-50 nA with RTC running from a 32 kHz external crystal. To achieve this low Iq, ensure all unused I/O pins are configured as outputs low (not inputs) in firmware initialization, and disconnect any unused analog channels via the ADCON register. The voltage regulator's BOR (Brown-Out Reset) must be enabled to prevent code execution below 2.0 V, which would risk Flash corruption during power-down transients.
Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin, with a wide ground return directly to the nearest VSS pin. For SSOP packages, place the cap on the opposite side of the board with vias to minimize loop inductance. For ADC accuracy, add a 10 uF bulk capacitor near the AVREF (if used) and isolate analog and digital ground returns with a single-point connection. The SSOP package benefits from thermal copper fills on the GND pour, especially for applications driving high-current I/O continuously.
Do not omit the configuration word programming step in production firmware - leaving defaults can result in the watchdog timer being disabled and the MCLR pin configured as input, which prevents normal operation. The PIC16F1769 requires explicit configuration of the APFCON register for alternate pin function mapping (e.g., PWM, UART). When using the on-chip op-amps, ensure the OPAxCON register's NCH and PCH channel selects match the schematic - misconfiguration is a common cause of no-signal bugs during prototyping.
When interfacing the PIC16F1769 with high-speed SPI peripherals above 8 MHz, route the SCK line away from analog input traces to minimize crosstalk. The EUSART baud rate error should be calculated for non-standard rates using BRGH and SPBRG values; an error above 2% can corrupt UART communications at higher bit rates. For I2C bus pull-up sizing, use 4.7 kohm resistors for standard-mode 100 kHz and 2.2 kohm for fast-mode 400 kHz with total bus capacitance below 100 pF.
Compliance Information
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade. AEC-Q100 qualification is not applicable for the I-grade variant; choose the H-grade (automotive) variant for AEC-Q100 qualified alternatives.
