PIC16F18345T-I/SS - 8-Bit XLP MCU 14KB Flash 32MHz SSOP-20 | Microchip
MPN： PIC16F18345T-I/SS ✓ 啟用中PIC16F18345T-I/SS 概覽
直接替換替代品，適用於 PIC16F18345T-I/SS — 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： PIC16F18345T-I/SS （相同外形與佔位） — 差異在於 ADC, Core Architecture, Package, Operating Temperature, DAC.
PIC16F18344T-I/SS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F18345T-H/SSVAO
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18345T-E/SSVAO
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18345T-E/6NVAO
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1829T-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18345T-I/SS 最大額定值與電氣特性
| Core Architecture | PIC16 8-bit enhanced mid-range |
| Program Flash Memory | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| 封裝 | 20-pin SSOP (SS) 5.30 mm |
| 工作溫度範圍 | -40 C to +85 C (Industrial) |
| ADC | 10-bit, multiple channels |
| DAC | 5-bit |
| PWM | 10-bit |
| Comparators | Yes (on-chip) |
| CCP Modules | Yes |
| CLC (Configurable Logic Cell) | Yes |
| NCO (Numerically Controlled Oscillator) | Yes |
| CWG (Complementary Waveform Generator) | Yes |
| PPS (Peripheral Pin Select) | Yes |
| EUSART | 1 |
| SPI | Yes |
| I2C | Yes |
| XLP (eXtreme Low Power) | Yes (nanoWatt) |
| Functional Safety (FuSa) | Yes |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16F18345T-I/SS 腳位配置
| 腳位 1 | VDD — Positive supply voltage (2.3V to 5.5V) |
| 腳位 2 | RA5 — Digital I/O with PPS / ADC input |
| 腳位 3 | RA4 — Digital I/O with PPS / ADC input |
| 腳位 4 | RA3 — Digital I/O with PPS / MCLR (programming) |
| 腳位 5 | RC5 — Digital I/O with PPS |
| 腳位 6 | RC4 — Digital I/O with PPS |
| 腳位 7 | RC3 — Digital I/O with PPS / SCL (default) |
| 腳位 8 | RC2 — Digital I/O with PPS / SDA (default) |
| 腳位 9 | RC1 — Digital I/O with PPS |
| 腳位 10 | RC0 — Digital I/O with PPS |
| 腳位 11 | VSS — Ground reference |
| 腳位 12 | RC7 — Digital I/O with PPS |
| 腳位 13 | RC6 — Digital I/O with PPS |
| 腳位 14 | RB7 — Digital I/O with PPS / ICDCLK |
| 腳位 15 | RB6 — Digital I/O with PPS / ICICD |
| 腳位 16 | RB5 — Digital I/O with PPS / ADC input |
| 腳位 17 | RB4 — Digital I/O with PPS / ADC input |
| 腳位 18 | RB3 — Digital I/O with PPS / ADC input |
| 腳位 19 | RB2 — Digital I/O with PPS / ADC input |
| 腳位 20 | RB1 — Digital I/O with PPS / ADC input |
典型應用
PIC16F18345T-I/SS 適用於 7 應用s: Battery-Powered IoT Sensor Node, Functional Safety Sensor Conditioning, Low-Power Wireless Remote Control, White-Goods HMI Controller, LED Lighting Driver Controller, Automotive Sensor Cluster (AEC-Q100 Grade), Industrial Process Sensor Transmitter.
Battery-Powered IoT Sensor Node
The PIC16F18345T-I/SS fits battery-powered IoT sensor nodes because its nanoWatt XLP technology delivers sub-uA sleep current (typically <1 uA with RTC running) while the 32 MHz active CPU executes wake-and-transmit cycles in milliseconds. According to the Microchip datasheet 40001795H, the CLC plus NCO pair forms a hardware timer that wakes the device without firmware overhead, achieving years of life from a CR2032 coin cell. The 14 KB Flash accommodates small TCP/IP or LoRaWAN MAC stacks, and the 10-bit ADC interfaces directly to analog sensors like thermistors, photo-diodes, or gas sensors without external signal conditioning. The PPS remapping eases layout when stacking sensor mezzanines on a single SSOP-20 footprint.
推薦
Functional Safety Sensor Conditioning
With its Functional Safety (FuSa) qualification, the PIC16F18345T-I/SS is designed into safety sensor conditioning paths such as over-temperature shutdowns in appliance heaters, motor stall detectors in white goods, and Class B smoke detector front-ends. The 5-bit DAC and on-chip comparator form a window comparator around a sensor signal, generating a hardware interrupt when limits are exceeded. According to Microchip datasheet 40001795H, the CWG can drive safety relays with hardware dead-time insertion independent of the CPU, providing deterministic protection that survives firmware faults. The SSOP-20 industrial temperature grade -40C to +85C supports the operating envelope of typical appliance safety electronics.
推薦
Low-Power Wireless Remote Control
The PIC16F18345T-I/SS powers low-power wireless remote controls for consumer audio, ceiling fans, and motorized blinds thanks to XLP sleep currents under 1 uA and the ability to wake on a single button press through the CLC. A typical 2.4 GHz TX-only remote wakes, transmits a packet, and returns to sleep in <10 ms, drawing less than 5 uA average from two AAA cells. According to the datasheet, the PWM module drives an IR LED directly at 38 kHz carrier without CPU intervention, freeing the CPU for higher-level protocol handling. The 20-pin SSOP allows a thin remote PCB, and PPS keeps the GPIO and RF switch lines routable on a 2-layer board.
推薦
White-Goods HMI Controller
The PIC16F18345T-I/SS serves as the HMI controller in washing machines, dishwashers, and induction cooktops where it scans capacitive touch buttons via the on-chip comparators and drives LED or LCD indicators through PWM and CWG. The Core Independent Peripherals (CLC, NCO) implement capacitive sensing timing in hardware, freeing the CPU for rotary encoder processing and motor control hand-off. According to the Microchip datasheet 40001795H, the EUSART interfaces to a companion motor-control MCU while the I2C bus drives an LED driver IC. Industrial -40C to +85C rating handles the thermal stress of closed-enclosure appliance environments.
推薦
LED Lighting Driver Controller
The PIC16F18345T-I/SS drives constant-current LED strings via the CWG and 10-bit PWM, generating smooth dimming curves down to 0.1 percent without flicker. The CLC can implement hardware thermal foldback that reduces output current when an NTC sensor rises above threshold, independent of the CPU. According to the datasheet, the 5-bit DAC provides an analog reference for closed-loop current control through an external op-amp. With 14 KB Flash, color-mixing RGB or tunable-white firmware fits comfortably, and XLP sleep modes enable energy-efficient standby when the luminaire is off but still responsive to wall-switch events.
推薦
Automotive Sensor Cluster (AEC-Q100 Grade)
For automotive sensor clusters, the PIC16F18345T-E/6NVAO variant (AEC-Q100 qualified, same SSOP-20 footprint as PIC16F18345T-I/SS) reads multiple analog sensors through the 10-bit ADC and reports via CAN bus using a SPI-to-CAN bridge IC. According to Microchip datasheet 40001795H, the Functional Safety features and -40C to +125C operating range (extended grade) make this family suitable for body-control and sensor-conditioning modules in vehicles. The PPS allows flexible pin assignment for body controller PCB layouts where connector orientation may change between vehicle programs.
推薦
Industrial Process Sensor Transmitter
The PIC16F18345T-I/SS integrates 4-20 mA loop-powered process transmitters by digitizing an analog sensor through its 10-bit ADC and driving a PWM-controlled loop through a single transistor. According to Microchip datasheet 40001795H, the low 2.3 V minimum supply and XLP operation enable startup and operation entirely from a 4-20 mA loop budget. The on-chip 5-bit DAC calibrates offset and the comparator watches loop integrity, generating a fault output if the loop breaks. SSOP-20 industrial temperature rating and surface-mount assembly suit modern DIN-rail transmitter enclosures.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F18345T-I/SS — 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 | PIC16F18344T-I/SS | PIC16F18345T-H/SSVAO | PIC16F18345T-E/SSVAO | PIC16F1829T-I/SS |
|---|---|---|---|---|---|
| Package | SSOP-20 (SS) | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 8 KB | 14 KB | 14 KB | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| CPU Speed | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS |
| CLC / NCO / CWG | Yes | Yes | Yes | Yes | No |
| Functional Safety (FuSa) | Yes | Yes | Yes (high-temp) | Yes (extended) | No |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +150 C | -40 C to +125 C | -40 C to +85 C |
| AEC-Q100 Automotive | No (industrial grade) | No | Yes (high-temp VAO) | Yes (AEC-Q100 VAO) | No |
主要差異化特點
- Core Independent Peripherals (CLC/NCO/CWG) absent on older PIC16F1829 (對比PIC16F1829T-I/SS)
- Functional Safety (FuSa) qualification (對比PIC16F1829T-I/SS)
- Same SSOP-20 footprint with double the Flash of PIC16F18344 (對比PIC16F18344T-I/SS)
設計說明
Estimated: at 32 MHz active CPU and 5.5 V supply, core current draw is roughly 6 mA (from the datasheet 40001795H typical curves), so a decoupling strategy of 100 nF + 1 uF + 10 uF placed within 5 mm of the VDD pin is required. For XLP sleep, switch to the 32 kHz LFINTOSC before SLEEP() and disable unused peripherals via PMDx to reach sub-uA standby. Connect all unused pins to VSS or VDD through the firmware weak pull-up/down to prevent shoot-through during deep sleep recovery.
Do not rely on the default PPS mapping after a programming reset on every variant - some PIC16F18345 pin packages expose fewer PPS-mappable pins than others (e.g., SSOP-20 has fewer than UQFN-20). Always consult the I/O count table on datasheet page for the specific package. Also, the MCLR pin (RA3) is multiplexed with the device programming pin; if RA3 is used as a digital input, ensure the 10 kohm pull-up to VDD is present and that the ICSP programming header does not load the line.
For SSOP-20, route the ICSP signals (RB6/RB7) with stubs no longer than 25 mm and avoid crossing them with switching power or PWM traces. Place a 100 nF X7R bypass within 3 mm of the VDD pin and a 10 uF bulk capacitor within 10 mm. If the PCB includes a long external antenna trace (e.g., for 2.4 GHz remote control), keep it at least 5 mm away from the SSOP-20 MCU footprint to avoid radiated noise coupling into the ADC inputs.
合規資訊
RoHS and lead-free confirmed via Microchip product page. The base PIC16F18345T-I/SS is industrial grade (not AEC-Q100); choose PIC16F18345T-E/SSVAO or PIC16F18345T-H/SSVAO for automotive or high-temperature designs.
