PIC16LF1769T-I/SO - 14KB Flash 8-bit MCU with 2 Op Amps | Microchip
부품 번호: PIC16LF1769T-I/SO ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.18 | $2.18 |
| 10 | $1.92 | $19.20 |
| 100 | $1.62 | $162.00 |
| 500 | $1.38 | $690.00 |
| 1,000 | $1.16 | $1,160.00 |
PIC16LF1769T-I/SO 개요
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and a mix of analog and digital peripherals around a von Neumann/Harvard-style bus. Within the Microchip taxonomy, an 8-bit MCU sits beneath PIC microcontroller -> microcontroller -> microprocessor -> semiconductor; the PIC16 family specifically targets cost-sensitive, low-power applications where deterministic GPIO, ADC, and PWM control matter more than raw compute throughput. The PIC16LF1769T-I/SO is the "LF" (low-voltage F) variant of the PIC16F1769, sharing the same pinout and peripheral set but rated for 1.8V minimum VDD instead of 2.3V, enabling direct Li-ion or 2xAA battery operation.
Key differentiating features include two on-chip operational amplifiers with internal rail-to-rail input/output, two 10-bit DACs, two 10-bit/16-bit PWMs with independent time bases, three Configurable Logic Cells (CLC), three 10-bit ADC channels, a Zero-Cross Detect (ZCD), two Programmable Ramp Generators (PRG), and 100mA high-current I/O for direct LED drive. The XLP (eXtreme Low Power) family extends battery life with sub-µA sleep currents, and Peripheral Pin Select (PPS) allows on-the-fly remapping of digital peripheral I/O to physical pins.
In architecture, the part integrates a 14-stage instruction pipeline with a hardware multiplier, 8-deep stack, and 49-instruction set; combined with 8Kx14 Flash word organization, this delivers an optimal code-density/per-MIPS ratio for compact state machines, sensor hubs, and lighting controllers. Internal 32MHz HF oscillator eliminates an external crystal in many designs, while the 32kHz LFINTOSC supports RTC-style sleep cycling.
Typical applications include LED lighting and color-mixing controllers, switch-mode power supply (SMPS) digital control loops, battery charging and fuel-gauge front-ends, sensor signal conditioning, and low-cost IoT end nodes. Designers value the integrated op amps for active analog filtering without external ICs. When designing, plan the VDD decoupling network (1uF bulk + 0.1uF ceramic close to the pins), respect the 100mA I/O sink/source limit per pin, and leverage the PPS feature to optimize PCB routing on dense layouts. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
드롭인 대체품: PIC16LF1769T-I/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16LF1769T-I/SO (동일 폼 팩터 및 풋프린트) — 차이점: DAC, Operating Temperature, Package, Program Memory (Flash), ADC.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F1769T-I/SO
✅ 드롭인✓ 재고 있음
$1.02 / 개
데이터시트 보기 →PIC16LF1768T-I/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16LF1769-I/SO
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
PIC16LF1709T-I/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16LF1718T-I/SO
✅ 드롭인✓ 재고 있음
$1.27 / 개
데이터시트 보기 →PIC16LF1769T-I/SO 최대 정격 & 전기적 특성
| Core Architecture | 8-bit PIC (Harvard RISC, 49-instruction set) |
| Family | PIC16(L)F176X (XLP eXtreme Low Power) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data Memory (RAM) | 1 KB |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| 동작 온도 | -40 C to +85 C (Industrial "I") |
| 패키지 | 20-pin SOIC (SO), 7.50 mm body, 1.27 mm pitch |
| I/O Pins | Up to 18 general-purpose I/O (high-current 100 mA capable) |
| ADC | 10-bit, up to 17 channels |
| DAC | 2 x 10-bit DAC |
| Operational Amplifiers | 2 on-chip op amps (rail-to-rail I/O) |
| PWM | 2 x 10/16-bit PWM with independent time bases |
| Configurable Logic Cells (CLC) | 3 CLC blocks |
| Zero-Cross Detect (ZCD) | 1 ZCD module |
| Programmable Ramp Generator (PRG) | 2 PRG modules |
| Peripheral Pin Select (PPS) | Yes - digital peripheral pin remapping |
| Internal Oscillator | 32 MHz HFINTOSC + 32 kHz LFINTOSC |
| RoHS 상태 | Compliant |
PIC16LF1769T-I/SO 핀 구성
| 핀 1 | RA5 — Digital I/O (PPS-capable) / DAC1OUT / ZCD output |
| 핀 2 | RA4 — Digital I/O (PPS-capable) / OPA1IN3+ / CLCxOUT |
| 핀 3 | RA3 — Digital I/O (PPS-capable) / MCLR (input) / weak pull-up |
| 핀 4 | RC5 — Digital I/O (PPS-capable) / high-current 100mA capable |
| 핀 5 | RC4 — Digital I/O (PPS-capable) / high-current 100mA capable |
| 핀 6 | RC3 — Digital I/O (PPS-capable) / high-current 100mA capable |
| 핀 7 | RC2 — Digital I/O (PPS-capable) / high-current 100mA capable |
| 핀 8 | RC1 — Digital I/O (PPS-capable) / OPA2IN+ / DAC2OUT |
| 핀 9 | RC0 — Digital I/O (PPS-capable) / OPA2IN- |
| 핀 10 | VSS — Ground reference |
| 핀 11 | RA2 — Digital I/O (PPS-capable) / OPA1IN- / DAC1OUT |
| 핀 12 | RA1 — Digital I/O (PPS-capable) / OPA1OUT / ICSPCLK |
| 핀 13 | RA0 — Digital I/O (PPS-capable) / ICSPDAT / OPA1IN+ |
| 핀 14 | VDD — Positive supply (1.8V-3.6V) |
| 핀 15 | RB7 — Digital I/O (PPS-capable) / high-current 100mA |
| 핀 16 | RB6 — Digital I/O (PPS-capable) / high-current 100mA / ICSPCLK |
| 핀 17 | RB5 — Digital I/O (PPS-capable) / high-current 100mA / OPA2OUT |
| 핀 18 | RB4 — Digital I/O (PPS-capable) / high-current 100mA |
| 핀 19 | RC7 — Digital I/O (PPS-capable) / high-current 100mA |
| 핀 20 | RC6 — Digital I/O (PPS-capable) / high-current 100mA |
일반적인 애플리케이션
PIC16LF1769T-I/SO 적합 용도: 7 애플리케이션s: LED Lighting & Color-Mixing Controllers, Switch-Mode Power Supply (SMPS) Digital Control, Sensor Signal Conditioning Hubs, Battery Charging & Fuel-Gauge Front-Ends, IoT End Nodes with Sensor Readout, Industrial Control & Process Loops, Audio & Signal Generation Modulation.
LED Lighting & Color-Mixing Controllers
The PIC16LF1769T-I/SO is well-suited to multi-channel LED lighting and color-mixing controllers thanks to its combination of three 10-bit/16-bit PWMs with independent time bases, three Configurable Logic Cells (CLC), and two on-chip 10-bit DACs for analog current-set references. With its 32MHz CPU and 14KB Flash, the part can drive up to four LED channels with smooth logarithmic dimming, color-temperature blending, and DMX512 or DALI protocol parsing simultaneously. The integrated 100mA high-current I/O allows direct LED sink on each channel without external MOSFETs on lower-power strings (under 100mA per pin), simplifying the BOM. Compared with a discrete MCU + LED-driver solution, the on-chip op amps and DACs reduce part count by 3-4 ICs.
추천
Switch-Mode Power Supply (SMPS) Digital Control
The PIC16LF1769T-I/SO enables digital control of switch-mode power supplies through its two Programmable Ramp Generators (PRG) and Zero-Cross Detect (ZCD) module - both purpose-built for peak-current-mode and quasi-resonant SMPS topologies. The 32MHz core delivers 8 MIPS, sufficient to execute a 50-100kHz control loop with ADC sampling and PWM update each cycle. The two integrated 10-bit DACs can be repurposed as soft-start and reference trim references, while the CLC blocks implement hardware-level fault blanking and synchronous rectification timing. Combined with the 1.8V minimum VDD, the part is well-suited to battery-input buck converters for portable and IoT devices.
추천
Sensor Signal Conditioning Hubs
The PIC16LF1769T-I/SO serves as an excellent sensor-conditioning hub because of its two integrated operational amplifiers with rail-to-rail input/output, which can be configured as transimpedance amplifiers for photodiodes, active filters for accelerometers, or charge amplifiers for piezoelectric sensors. The 10-bit ADC with up to 17 channels allows direct digitization of multiple analog sensors simultaneously, while the 14KB Flash supports on-device linearization, calibration, and unit conversion. XLP sub-uA sleep current and the 1.8V minimum VDD make it ideal for battery-powered environmental sensors that wake periodically to take readings, process, and transmit.
추천
Battery Charging & Fuel-Gauge Front-Ends
For single-cell Li-ion or multi-cell NiMH battery management, the PIC16LF1769T-I/SO integrates the ADC, op amps, and PWM channels needed to implement constant-current/constant-voltage (CC/CV) charge control loops with -dV detection or coulomb-counting fuel gauging. Its 1.8-3.6V VDD matches single-cell Li-ion voltage directly, and the 32kHz LFINTOSC with XLP sleep enables accurate long-term timekeeping without external RTC. The two PWMs can drive a synchronous buck charger MOSFET pair via gate drivers, while the 100mA high-current I/O can directly switch low-side charge-FETs for sub-1A charge currents. 14KB Flash supports state-machine charging profiles and SOC estimation algorithms.
추천
IoT End Nodes with Sensor Readout
The PIC16LF1769T-I/SO fits IoT end nodes that read sensors, perform local processing, and transmit via UART/SPI/I2C to a host radio module. The XLP architecture delivers sub-uA sleep current, while the 32MHz active CPU provides ample compute for sensor filtering and protocol framing. PPS allows UART, SPI, and I2C peripherals to be remapped to any GPIO, simplifying PCB routing on dense layouts. With 14KB Flash and 1KB RAM, the MCU can run a simple application-layer protocol stack (Modbus RTU, custom binary, or LoRaWAN device driver) without external memory. Combined with the LF 1.8V minimum VDD, the part is excellent for 2xAA or coin-cell powered nodes.
추천
Industrial Control & Process Loops
The PIC16LF1769T-I/SO is well-suited to industrial control applications such as 4-20mA loop transmitters, isolated signal conditioning, and PID process control loops. Its two on-chip op amps can implement current loop sense and conditioning stages; the 10-bit ADC captures the loop signal with adequate resolution for most 4-20mA control tasks. The 32MHz core runs PID loops at hundreds of Hz update rate, and 14KB Flash stores calibration constants and loop-tuning parameters. The industrial -40C to +85C operating range and 20-pin SOIC footprint (which accepts through-hole adapters for legacy panels) make it a strong choice for industrial retrofit designs and replacement of older 8-bit PIC16F parts.
추천
Audio & Signal Generation Modulation
Although not a primary audio processor, the PIC16LF1769T-I/SO can generate audio tones, alerts, and simple melodies via its two 16-bit PWMs and two 10-bit DACs. CLC blocks can implement hardware-level waveform synthesis (square, triangle, PWM-modulated sine) without CPU intervention, freeing the core for higher-level control. The ZCD module detects AC line zero crossings for phase-controlled dimmer or motor-control applications. With 1KB RAM, the part supports small audio sample buffers for click/alert sounds. This makes it suitable for appliance buzzers, security panel sirens, HVAC alert tones, and simple white-noise generators.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16LF1769T-I/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F1769T-I/SO | PIC16LF1768T-I/SO | PIC16LF1709T-I/SO | PIC16LF1718T-I/SO |
|---|---|---|---|---|---|
| Package | 20-SOIC (SO) | 20-SOIC (SO) - same | 20-SOIC (SO) - same | 20-SOIC (SO) - same | 20-SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit PIC (32MHz/8 MIPS) | 8-bit PIC (32MHz/8 MIPS) | 8-bit PIC (32MHz/8 MIPS) | 8-bit PIC (32MHz/8 MIPS) | 8-bit PIC (32MHz/8 MIPS) |
| Flash | 14 KB | 14 KB | 8 KB | 14 KB | 28 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB |
| Operating Voltage | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) |
| On-chip Op Amps | 2 (rail-to-rail) | 2 (rail-to-rail) | 2 (rail-to-rail) | 0 (no on-chip op amps) | 2 (rail-to-rail) |
| ZCD + PRG | Yes (1 ZCD + 2 PRG) | Yes (1 ZCD + 2 PRG) | Yes (1 ZCD + 2 PRG) | No (ZCD/PRG not present) | Yes (1 ZCD + 2 PRG) |
| High-Current I/O (100mA) | Yes (multiple pins) | Yes | Yes | Yes | Yes |
주요 차별점
- Integrated 2 op amps + ZCD + PRG in 20-SOIC at LF voltage (vs PIC16LF1709T-I/SO)
- Highest Flash density in 20-SOIC LF family with full analog set (vs PIC16LF1768T-I/SO)
- Pin-to-pin compatible with F-version for 5V system upgrade (vs PIC16F1769T-I/SO)
설계 노트
VDD decoupling is critical for PIC16LF1769T-I/SO designs: place a 1uF X7R ceramic bulk capacitor as close as possible to the VDD pin (pin 14), with a 0.1uF X7R bypass in parallel for high-frequency noise. For battery-powered designs, add a 10uF tantalum or aluminum-polymer cap at the battery terminal to suppress inrush when switching from sleep to active mode. The XLP architecture delivers sub-uA sleep current only if all unused GPIOs are configured as outputs (driven low) or inputs with the WPU disabled - floating inputs cause phantom current draw. Estimated: at 32MHz active, current draw is ~3-4 mA; at 32kHz LFINTOSC sleep, draw is ~0.5-1 uA.
When laying out the 20-pin SOIC footprint, follow JEDEC standard SO-300-1 (7.5mm body, 1.27mm pitch) and route the high-current I/O traces with at least 0.5mm copper width for 100mA capability. The exposed copper on the SOIC package is only on the lead fingers (no thermal pad), so thermal dissipation is limited; for designs dissipating >200mW continuously, consider adding copper pour beneath the SOIC pads tied to VSS. Place the ICSP programming header (RA0/RA1/RA3/MCLR) at the board edge in a 6-pin SIL or RJ-12 footprint for production programming. Estimated: thermal resistance theta_JA of the SOIC-20 package is ~80-100 C/W (typical for 7.5mm-body SOIC).
Three common pitfalls with the PIC16LF1769T-I/SO: (1) Enabling 32MHz HFINTOSC below 2.7V VDD - the IRCF=111 setting auto-fails to 16MHz, so check OSCCON after clock switch; (2) Forgetting the WPU bit initialization on MCLR (RA3) - MCLR is input-only by default and can float if not properly tied to VDD via 10kohm pull-up; (3) Configuring a high-current I/O as analog input - the 100mA capability only applies in digital output mode, and ADC inputs must have their TRIS and ANSEL bits configured correctly to avoid driving the ADC with digital output contention. Always configure analog/digital mode via the ANSELx register before enabling ADC or op amps on those pins.
For designs using the integrated op amps, keep analog input traces short and guard the analog section with a VSS analog ground island. The PIC16LF1769T-I/SO integrates only one ADC, so simultaneous sampling of multiple analog channels is not supported - sequence channels via the ADC channel-selection register with adequate acquisition time. For PWM outputs driving cables or motor windings, add a 100-ohm series resistor at the MCU pin and a Schottky diode clamp to VDD/VSS for ESD/EOS immunity. The PPS feature requires careful unlock sequence (IOLOCK bit) before reconfiguration - forgetting this causes silent PPS-lockout debug hours. Always read-back PPS configuration to confirm after locking.
규정 준수 정보
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial/consumer part; for automotive designs use PIC16F1769T-I/SO (industrial grade) or AEC-Q100-qualified variant if available.
