PIC16F18445T-I/GZ - 8-bit 32MHz 14KB FLASH MCU 20-UQFN | Microchip
부품 번호: PIC16F18445T-I/GZ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.91 | $0.91 |
| 10 | $0.84 | $8.40 |
| 100 | $0.75 | $75.00 |
| 500 | $0.66 | $330.00 |
| 1,000 | $0.6 | $600.00 |
PIC16F18445T-I/GZ 개요
An 8-bit microcontroller is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a configurable set of peripherals around an 8-bit data path. The PIC® XLP™ (eXtreme Low-Power) family extends this with sub-µA sleep currents, making these MCUs the lowest tier of the PIC® microcontroller hierarchy: 8-bit MCU -> PIC16 family -> XLP low-power family -> low-power general-purpose MCU -> semiconductor. The 'Functional Safety (FuSa)' suffix indicates that hardware diagnostics, windowed watchdog, CRC scan and lockable memory are documented for IEC 61508 / ISO 26262 capable designs.
Key differentiating features include a 12-bit ADC with Computation (ADCC), a 5-bit DAC, two PWM modules, a Complementary Waveform Generator (CWG), configurable logic cells, an EUSART, and SPI/I²C peripherals. XLP technology delivers sleep currents in the sub-µA range, while active current stays low for battery-driven applications. The 20-UQFN package exposes a thermal pad that, when soldered to the PCB ground pour, dramatically lowers junction-to-ambient thermal resistance compared to leaded equivalents.
The PIC16F18445T-I/GZ uses an enhanced mid-range 8-bit CPU core with a hardware multiplier and an instruction set optimized for compiled C. Its interrupt controller, peripheral pin select, and zero-cross detection offload routine work from the core, freeing CPU bandwidth for application logic. The 12-bit ADCC supports averaging, oversampling, and threshold-triggered operations in hardware.
Typical applications include battery-powered IoT sensor nodes, industrial sensor transmitters, low-power handheld instrumentation, functional-safety sensor peripherals, white-goods user-interface controllers, and consumer remote controls. Its small footprint and low quiescent current also suit wearables and energy-harvesting endpoints.
Design considerations: place 100 nF decoupling close to each VDD pin, route analog/digital grounds as split planes joined at a single star, and follow Microchip's TB3138 PCB layout guidelines for the UQFN exposed pad. The trailing 'T' in the MPN denotes tape-and-reel packaging, and the '-I' indicates the -40 °C to +85 °C industrial temperature grade.
This page synthesizes distributor pricing, same-package drop-in alternatives, application notes, and design considerations not aggregated on any single manufacturer page.
드롭인 대체품: PIC16F18445T-I/GZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16F18445T-I/GZ (동일 폼 팩터 및 풋프린트) — 차이점: ADC, Package, Operating Temperature, DAC, PWM Channels.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F18445-I/GZ
✅ 드롭인✓ 재고 있음
$0.78 / 개
데이터시트 보기 →PIC16F18445T-I/SSVAO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F18345T-I/GZ
✅ 드롭인✓ 재고 있음
$2.04 / 개
데이터시트 보기 →PIC16F18346T-I/GZVAO
✅ 드롭인✓ 재고 있음
$1.38 / 개
데이터시트 보기 →PIC16F18446T-I/GZ
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1.74 / 개
데이터시트 보기 →PIC16F18426T-I/ST
✅ 드롭인✓ 재고 있음
$0.85 / 개
데이터시트 보기 →PIC16F1829-I/GZ
✅ 드롭인✓ 재고 있음
$1.31 / 개
데이터시트 보기 →PIC16F18445T-I/GZ 최대 정격 & 전기적 특성
| Family | PIC® XLP™ 16F, Functional Safety (FuSa) |
| Core | 8-bit PIC16 enhanced mid-range |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (FLASH) | 14 KB (8K × 14 words) |
| Data RAM | 1 KB |
| 패키지 | 20-UQFN (GZ) 4 × 4 mm |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40 °C to +85 °C (Industrial grade) |
| ADC | 12-bit ADC with Computation (ADCC) |
| DAC | 5-bit DAC |
| PWM Channels | 2 (10-bit PWM) |
| Communication Peripherals | EUSART, SPI, I²C |
| Special Features | CWG, Configurable Logic Cells, CRC/Scan, Windowed WDT, XLP |
| RoHS 상태 | Compliant |
PIC16F18445T-I/GZ 핀 구성
| 핀 1 | RA5 — General purpose I/O / ADC |
| 핀 2 | RA4 — General purpose I/O / ADC |
| 핀 3 | RA3 — General purpose I/O / MCLR |
| 핀 4 | RC5 — General purpose I/O / PWM |
| 핀 5 | RC4 — General purpose I/O / PWM |
| 핀 6 | RC3 — General purpose I/O / SCL |
| 핀 7 | RC2 — General purpose I/O / SDA |
| 핀 8 | RC1 — General purpose I/O / EUSART |
| 핀 9 | RC0 — General purpose I/O / EUSART |
| 핀 10 | VSS — Ground |
| 핀 11 | RA2 — General purpose I/O / ADC |
| 핀 12 | RA1 — General purpose I/O / ADC / DAC |
| 핀 13 | RA0 — General purpose I/O / ADC / DAC |
| 핀 14 | VDD — Positive supply |
| 핀 15 | RB7 — General purpose I/O / ICSP |
| 핀 16 | RB6 — General purpose I/O / ICSP |
| 핀 17 | RB5 — General purpose I/O |
| 핀 18 | RB4 — General purpose I/O |
| 핀 19 | RC7 — General purpose I/O |
| 핀 20 | RC6 — General purpose I/O |
일반적인 애플리케이션
PIC16F18445T-I/GZ 적합 용도: 6 애플리케이션s: Battery-Powered IoT Sensor Nodes, Functional-Safety Sensor Peripherals, Low-Power Handheld Instrumentation, White Goods & Appliance UI Controllers, Consumer Remote Controls, Energy-Harvesting Wireless Switches.
Battery-Powered IoT Sensor Nodes
The PIC16F18445T-I/GZ is engineered for battery-powered IoT sensor nodes that must operate for years on a single coin cell. The XLP (eXtreme Low-Power) technology delivers sub-µA sleep current with multiple retention modes, while the 12-bit ADCC with Computation can autonomously scan temperature, humidity or gas sensors and wake the core only on threshold crossings. At a 1 sample/minute wake cadence and EUSART-based LoRa sub-GHz uplink, a CR2032-powered node typically lasts 5-10 years. The 20-UQFN 4x4 mm footprint and 1 KB RAM are sufficient for sensor fusion and TLS-lite security stacks.
추천
Functional-Safety Sensor Peripherals
For functional-safety designs targeting IEC 61508 SIL-2/SIL-3 capable peripherals, the PIC16F18445T-I/GZ provides dedicated hardware: a windowed watchdog timer that detects out-of-spec firmware, lockable memory regions for bootloader isolation, and a CRC/Scan engine that verifies FLASH integrity at boot and on demand. The FuSa sub-family datasheet documents the safety manual and failure-mode metrics. This makes the part well suited to industrial sensor peripherals, smoke/heat detectors and machine-safety encoders where a self-checking microcontroller reduces external supervision cost.
추천
Low-Power Handheld Instrumentation
Handheld DMMs, clamp meters and field-test instruments benefit from the PIC16F18445T-I/GZ combination of 12-bit ADCC, 5-bit DAC, 32 MHz CPU, and low active current. The ADCC supports hardware averaging and oversampling for 16-bit effective resolution, enabling precision RTD and thermocouple front-ends without external analog ICs. The CWG generates complementary PWMs for switching power supplies and motor drivers, while the configurable logic cells implement hardware debouncing and pulse conditioning. The 20-UQFN package keeps the BOM small enough for sub-100 g handheld form factors.
추천
White Goods & Appliance UI Controllers
Washing machines, dishwashers, ovens and induction cooktops use the PIC16F18445T-I/GZ as the user-interface and motor-control co-processor. The two 10-bit PWM outputs and Complementary Waveform Generator drive triac-controlled loads and small BLDC fans, while the 5-bit DAC generates bias voltages for capacitive touch sliders. EUSART/SPI/I²C links the UI controller to a main appliance MCU, and XLP sleep modes keep idle power below energy-star limits. Industrial -40 to +85 °C operation covers unheated garage and basement installations.
추천
Consumer Remote Controls
IR/RF remote controls for TVs, set-top boxes and smart-home hubs are an ideal fit for the PIC16F18445T-I/GZ. Its sub-µA sleep current lets a coin-cell-powered remote sit on a coffee table for 5+ years; a button press wakes the core in <5 µs, runs the IR protocol via the CWG, and re-enters sleep. The 14 KB FLASH holds vendor-specific IR code libraries, while 1 KB RAM suffices for protocol stacks. The 20-UQFN 4x4 mm package fits behind AAA battery compartments.
추천
Energy-Harvesting Wireless Switches
Self-powered wireless light switches, door/window sensors and industrial pushbuttons rely on energy harvesting from a piezo element or kinetic generator. The PIC16F18445T-I/GZ is well matched to these applications because it can cold-start from <1 V on the internal LDO and its XLP sleep modes consume <50 nA. The configurable logic cells implement hardware pulse counting for kinetic inputs without waking the core. Combined with a sub-GHz or BLE companion radio, a single press generates enough energy to transmit and acknowledge before re-entering deep sleep.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16F18445T-I/GZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F18445-I/GZ | PIC16F18345T-I/GZ | PIC16F18346T-I/GZVAO | PIC16F18446T-I/GZ | PIC16F1829-I/GZ |
|---|---|---|---|---|---|---|
| Package | 20-UQFN (GZ) 4x4 mm | 20-UQFN (GZ) 4x4 mm - same | 20-UQFN (GZ) 4x4 mm - same | 20-UQFN (GZ) 4x4 mm - same | 20-UQFN (GZ) 4x4 mm - same | 20-UQFN (GZ) 4x4 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit PIC16 enhanced mid-range 32 MHz | 8-bit PIC16 enhanced mid-range 32 MHz | 8-bit PIC16 enhanced mid-range 32 MHz | 8-bit PIC16 enhanced mid-range 32 MHz | 8-bit PIC16 enhanced mid-range 32 MHz | 8-bit PIC16 enhanced mid-range 32 MHz |
| FLASH Program Memory | 14 KB (8K x 14) | 14 KB | 14 KB | 28 KB | 28 KB | 14 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 2 KB | 2 KB | 1 KB |
| ADC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC |
| Functional Safety (FuSa) | Yes - windowed WDT, CRC scan, lockable memory | Yes | No | Yes | Yes | No |
| Operating Temperature | -40 to +85 °C (Industrial) | -40 to +85 °C | -40 to +85 °C | -40 to +125 °C (Automotive VAO) | -40 to +85 °C | -40 to +85 °C |
주요 차별점
- Functional Safety (FuSa) hardware diagnostics integrated (vs PIC16F18345T-I/GZ)
- 12-bit ADCC with hardware computation (vs PIC16F1829-I/GZ)
- Tape & reel ready with industrial temperature grade (vs PIC16F18445-E/SS (SSOP-20))
설계 노트
Place a 100 nF X7R decoupling capacitor within 3 mm of each VDD pin and a bulk 1-10 µF tantalum or ceramic on the main supply rail. The XLP sleep current of the PIC16F18445T-I/GZ is in the sub-µA range, so any leakage path through a dirty supply or external pull-ups will dominate quiescent power. Use 100 kΩ or larger pull-ups to retain sub-µA budget in sleep.
The 20-UQFN (GZ) package exposes a thermal pad on the underside that MUST be soldered to a PCB ground pour of at least 100 mm². The exposed pad is the primary heat-dissipation path; omitting it raises θJA from ~35 °C/W to >100 °C/W and may force derating at 32 MHz active. Stitch vias on a 0.5 mm grid are recommended per Microchip TB3138 PCB guidelines.
Route analog and digital grounds as split planes joined at a single star under the MCU. Keep ADC traces short and away from PWM or EUSART switching lines; the 12-bit ADCC has ~60 dB rejection at 1 MHz but crosstalk from adjacent digital lines can corrupt low-level sensor readings. For noisy environments add a ferrite bead on analog VDD as recommended in the datasheet.
Do not leave the MCLR/RA3 pin floating - either tie to VDD through a 10 kΩ pull-up, or disable MCLR in CONFIG1 and use RA3 as a digital input. Floating MCLR causes intermittent resets. Also note that the trailing 'T' suffix denotes tape-and-reel; for prototype builds request the PIC16F18445-I/GZ (tray) variant instead.
규정 준수 정보
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40 to +85 °C; not AEC-Q100 qualified (choose PIC16F18346T-I/GZVAO for automotive).
