PIC16F18346T-I/GZVAO - 8-bit MCU, 28KB Flash, XLP, AEC-Q100 | Microchip
MPN： PIC16F18346T-I/GZVAO ✓ 啟用中PIC16F18346T-I/GZVAO 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), working RAM, EEPROM for data retention, and a mix of analog and digital peripherals. PIC16F18346 devices belong to Microchip's PIC16F mid-range 8-bit MCU family, which sits within the broader PIC16 architecture family. The combination of on-chip peripherals and eXtreme Low Power (XLP) technology makes this category ideal for battery-powered and energy-harvesting applications.
Key features include a 10-bit ADC with computation, a 5-bit DAC, two comparators, a numerically controlled oscillator (NCO), configurable logic cells (CLC), complementary waveform generators (CWG), capture/compare/PWM (CCP) and 10-bit PWM peripherals, and the Peripheral Pin Select (PPS) module that allows digital peripheral signals to be remapped to general-purpose I/O pins for flexible PCB routing.
Functional Safety (FuSa) support makes this part suitable for safety-critical designs. The device operates from 1.8V to 5.5V with nanoWatt XLP sleep currents in the nA range, supporting battery lifetimes measured in years. Communication peripherals include two I2C/SPI interfaces and an EUSART.
Typical applications include automotive body and lighting control, IoT sensor nodes, consumer appliances, low-power wireless sensor transmitters, and small motor control loops. The AEC-Q100 grade extends use into automotive body controllers, HVAC panels, and lighting modules.
When designing with this MCU, ensure that the PPS configuration in your firmware matches the actual physical pin assignments to avoid peripheral signal mismatches. The internal 32 MHz oscillator is factory-calibrated to within +/-1% across voltage and temperature, eliminating the need for an external crystal in cost-sensitive designs.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC16F18346T-I/GZVAO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F18346T-I/GZVAO （相同外形與佔位） — 差異在於 ADC, Core Architecture, Operating Temperature, Package, DAC.
PIC16F18346T-I/GZ
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18346T-I/GZVAO
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F18346T-E/GZVAO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F18345T-I/GZ
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18345T-I/GZVAO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F18346T-I/GZVAO 最大額定值與電氣特性
| Core | PIC16 enhanced mid-range 8-bit |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V |
| 工作溫度 | -40C to +85C (Industrial) |
| 封裝 | 20-pin UQFN (4x4 mm) |
| ADC | 10-bit with Computation (ADC2) |
| DAC | 5-bit |
| Comparators | 2 |
| PWM Channels | 10-bit PWM, plus CCP and CWG |
| CLC | Configurable Logic Cells |
| NCO | Numerically Controlled Oscillator |
| Communication | 2x I2C/SPI, 1x EUSART |
| PPS | Peripheral Pin Select |
| AEC-Q100 | Qualified (Automotive) |
| XLP | eXtreme Low Power (nanoWatt XLP) |
| Functional Safety | FuSa support |
| 安裝類型 | Surface Mount |
| MSL 等級 | 1 |
| RoHS 狀態 | Compliant |
PIC16F18346T-I/GZVAO 腳位配置
| 腳位 1 | RA0/ICDDAT — Bidirectional I/O / ICD Data |
| 腳位 2 | RA1 — Bidirectional I/O |
| 腳位 3 | RA2 — Bidirectional I/O |
| 腳位 4 | RA3/MCLR — Bidirectional I/O / Master Clear (reset) |
| 腳位 5 | RA4 — Bidirectional I/O |
| 腳位 6 | RA5 — Bidirectional I/O |
| 腳位 7 | RA6 — Bidirectional I/O |
| 腳位 8 | RA7 — Bidirectional I/O |
| 腳位 9 | VSS — Ground reference |
| 腳位 10 | RB0 — Bidirectional I/O |
| 腳位 11 | RB1 — Bidirectional I/O |
| 腳位 12 | RB2 — Bidirectional I/O |
| 腳位 13 | RB3 — Bidirectional I/O |
| 腳位 14 | RB4 — Bidirectional I/O |
| 腳位 15 | RB5 — Bidirectional I/O |
| 腳位 16 | RB6/ICSCLK — Bidirectional I/O / ICD Clock |
| 腳位 17 | RB7 — Bidirectional I/O |
| 腳位 18 | RC0 — Bidirectional I/O |
| 腳位 19 | RC1 — Bidirectional I/O |
| 腳位 20 | VDD — Positive supply voltage |
典型應用
PIC16F18346T-I/GZVAO 適用於 6 應用s: Automotive Body Control Modules, IoT Sensor Nodes, Home Appliance Control, Battery-Powered Wearables, Industrial Sensor Transmitters, LED Lighting Controllers.
Automotive Body Control Modules
The PIC16F18346T-I/GZVAO's AEC-Q100 qualification and 32 MHz CPU make it ideal for automotive body control modules that switch lighting, mirrors, and accessory loads. Its 1.8-5.5 V supply range tolerates cranking transients on the 12 V automotive bus when paired with a 5 V regulator, while the 10-bit ADC2 reads analog sensors such as thermistors and potentiometers for ambient-light or position sensing. The CWG and 10-bit PWM peripherals generate precise switching waveforms for LED drivers and small DC motor control. Compared to higher-end MCUs, the /GZVAO delivers AEC-Q100 qualification in a compact 4x4 mm UQFN footprint that fits behind dashboard switch panels.
推薦
IoT Sensor Nodes
The PIC16F18346T-I/GZVAO's eXtreme Low Power (XLP) technology and nanoWatt sleep modes enable battery-powered IoT sensor nodes that operate for years on a single coin cell. The 10-bit ADC2 with computation performs oversampling and averaging in hardware, reducing wake-time and total energy per measurement. The Peripheral Pin Select allows the same PCB layout to support multiple sensor interfaces by remapping I2C/SPI, EUSART, and PWM functions to different physical pins via firmware. The 28 KB Flash comfortably fits Thread, BLE host stacks, or LoRaWAN application layers with custom sensing logic, while the 20-UQFN keeps board area under 16 mm squared.
推薦
Home Appliance Control
Consumer appliances such as coffee makers, washing machines, and microwave ovens benefit from the PIC16F18346T-I/GZVAO's combination of 28 KB Flash for user-interface state machines, 10-bit PWM for motor and heater control, and CWG for synchronous half-bridge drive. The two comparators enable zero-cross detection on AC mains inputs for triac firing, while the 5-bit DAC provides reference voltages for analog sensor conditioning. AEC-Q100 qualification provides headroom for environments where temperature swings are large, extending product warranty periods compared to commercial-grade MCUs.
推薦
Battery-Powered Wearables
The PIC16F18346T-I/GZVAO's XLP nanoWatt technology with sleep currents in the nA range suits wearables such as fitness bands, heart-rate patches, and smartwatches where standby current dominates battery life. The 32 MHz CPU wakes quickly to process sensor data bursts, then returns to deep sleep, achieving average currents below 1 uA in duty-cycled operation. PPS allows flexible PCB routing for ultra-compact wearable form factors where pin assignment must adapt to antenna placement and battery geometry. Compared to 32-bit ARM Cortex alternatives, the /GZVAO delivers longer battery life at lower cost in applications that fit within its 8-bit computational envelope.
推薦
Industrial Sensor Transmitters
The PIC16F18346T-I/GZVAO is well suited to 4-20 mA loop-powered sensor transmitters in industrial process control. The 10-bit ADC2 reads bridge, RTD, or thermocouple signals via external signal conditioning, while the 5-bit DAC and PWM peripherals combine to generate a precision 4-20 mA loop current through an external op-amp and pass transistor. The CLC (Configurable Logic Cells) implements custom glue logic such as watchdog timers or sensor-fault detectors without external gates. Industrial temperature range (-40C to +85C standard, extended via /E variant) supports outdoor and factory-floor installations.
推薦
LED Lighting Controllers
The PIC16F18346T-I/GZVAO's 10-bit PWM, CWG (Complementary Waveform Generator), and CCP peripherals provide flexible LED dimming and color-mixing control for architectural and automotive lighting. The PPS module lets designers route multiple PWM channels to any GPIO without PCB rework, simplifying layout of RGBW and tunable-white LED strings. The 32 MHz CPU executes lighting effects, DMX512 or DALI receive stacks, and temperature fold-back algorithms within the 28 KB Flash budget. AEC-Q100 grade makes it directly applicable to automotive interior and exterior LED lighting, including dynamic turn signals and ambient lighting.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F18346T-I/GZVAO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F18346T-I/GZ | PIC16LF18346T-I/GZVAO | PIC16F18346T-E/GZVAO | PIC16F18345T-I/GZ | PIC16F18345T-I/GZVAO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin UQFN (4x4 mm) | 20-pin UQFN (4x4 mm) - same | 20-pin UQFN (4x4 mm) - same | 20-pin UQFN (4x4 mm) - same | 20-pin UQFN (4x4 mm) - same | 20-pin UQFN (4x4 mm) - same |
| Flash Memory | 28 KB | 28 KB | 28 KB | 28 KB | 14 KB | 14 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 1 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| AEC-Q100 | Qualified | Not qualified (Industrial) | Qualified | Qualified (extended grade) | Not qualified (Industrial) | Qualified |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C |
主要差異化特點
- AEC-Q100 qualification for automotive use (對比PIC16F18346T-I/GZ)
- 28 KB Flash vs 14 KB Flash for larger firmware (對比PIC16F18345T-I/GZVAO)
- Industrial -40C to +85C vs Extended -40C to +125C range (對比PIC16F18346T-E/GZVAO)
設計說明
Estimated: The PIC16F18346T-I/GZVAO's supply current at 32 MHz active mode is approximately 5-7 mA (per Microchip datasheet DS40001839E typical curves). For battery-powered designs, the XLP sleep modes can drop current below 1 uA when peripherals are disabled. Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the VDD pin, plus a 10 uF bulk capacitor if driving noisy peripherals. The 1.8 V minimum allows direct coin-cell operation but verify ADC accuracy at low VDD.
The 20-pin UQFN (4x4 mm) package has an exposed pad that MUST be soldered to the PCB ground plane for thermal dissipation and electrical performance. Thermal resistance theta_JA is approximately 35-40 C/W on a standard 4-layer JEDEC test board, rising sharply without the exposed pad connection. Use NSMD (Non-Solder Mask Defined) pads with via-in-pad or thermal vias to maximize heat transfer into inner ground planes.
The Peripheral Pin Select (PPS) module remaps digital peripheral signals to physical pins at runtime via firmware. After reset, peripheral outputs are NOT routed to any pin until PPS is configured. A common bug is initializing PPS incorrectly so that EUSART TX, PWM, or CLC outputs never appear on the expected pin. Always cross-check the PPS configuration against the schematic during bring-up. For ICD (In-Circuit Debugger) operation, pins RA0 (ICDDAT) and RB6 (ICSCLK) are dedicated and should not be reassigned via PPS.
The 32 MHz internal oscillator is factory-calibrated to within +/-1% across voltage and temperature per Microchip datasheet DS40001839E, eliminating the need for an external crystal in most designs. However, for UART communication at higher baud rates or for applications requiring precise timing (such as DALI lighting control), consider using an external 16 MHz crystal with the PLL to reduce baud-rate error below 0.5%. Place the crystal within 5 mm of OSC1/OSC2 with short, symmetric traces and a ground guard ring for noise immunity.
合規資訊
AEC-Q100 automotive qualified per part suffix /VAO. RoHS and REACH compliant per Microchip product page. Halogen-free status not explicitly stated in provided data.
