PIC16F18344-I/P - 8-Bit 32MHz MCU 7KB Flash 20-PDIP | Microchip
料号： PIC16F18344-I/P ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.08 | $108.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.81 | $810.00 |
PIC16F18344-I/P 概述
An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, non-volatile program memory (typically Flash), working RAM, and a set of on-chip peripherals (ADCs, timers, communication controllers, GPIO). MCUs are the lowest tier of embedded compute, sitting beneath microprocessors and above simple logic in the digital IC hierarchy. The PIC16F18344 is positioned for applications that need analog precision, multiple serial interfaces, and very low sleep current, but where cost-per-unit and PCB simplicity favor a smaller pin-count device.
Key features include Peripheral Pin Select (PPS) for flexible peripheral-to-pin mapping, an integrated 10-bit ADC with computation, multiple 16-bit PWM, and a 32 MHz internal oscillator with x4 PLL. The XLP technology delivers typical sleep currents in the nanoampere range, with active-mode current in the microampere-to-millampere band depending on clock and peripheral activity. The PIC16F18344 is built on an enhanced mid-range 8-bit core and supports configurable logic cells, complementary waveform generators, and zero-cross detection, all without external components.
Technically, the architecture implements a Harvard-style memory map with a single-cycle ALU and hardware multiply support, plus a vectored interrupt controller with prioritized CIP interrupts. The device carries up to 18 I/O pins, four 16-bit timers, two I2C/SPI/UART-capable EUSART modules, and an on-chip temperature indicator. Memory endurance is rated at 100k Flash erase/write cycles and 1M EEPROM cycles typical, with data retention of 40+ years at room temperature.
Typical applications include battery-powered sensor nodes, low-power IoT endpoints, general-purpose logic replacement, home appliances, lighting controllers, and remote controls. The wide operating voltage (1.8V to 5.5V) and rich peripheral set also make it a strong fit for industrial sensor interfaces, automotive body electronics (sub-systems), and small consumer devices that need deterministic real-time control rather than full Linux-class compute.
When designing with this part, place a 100 nF decoupling capacitor adjacent to VDD, with a bulk capacitor (1uF to 10uF) on each supply rail. For low-noise analog performance, keep ADC traces short and use a separate analog supply pin where available. Engineers should also benchmark the XLP sleep modes (Doze, Idle, Sleep) against the system wake-up latency budget to minimize average current.
直接替换替代料： PIC16F18344-I/P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F18344-I/P （相同外形与封装尺寸） ——差异在于 Package, ADC, I/O Pins, Program Memory (Flash), Core Independent Peripherals.
快速对比工具——选择替代料号进行并排对比：
PIC16F18344-E/P
✅ 直接替换✓ 有现货
$1.02 / 个
查看数据手册 →PIC16F18324-E/P
✅ 直接替换✓ 有现货
$0.78 / 个
查看数据手册 →PIC16F1829-I/P
✅ 直接替换✓ 有现货
$1.25 / 个
查看数据手册 →PIC16F1789-I/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F18446-I/P
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16F18344-I/P 最大额定值与电气特性
| Core | PIC 8-bit enhanced mid-range |
| CPU Speed | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data Memory (SRAM) | 512 B |
| Data EEPROM | 256 B |
| 封装 | 20-PDIP (through-hole) |
| 引脚数量 | 20 |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| ADC | 10-bit ADC with computation |
| PWM Channels | Multiple 16-bit PWM |
| Communication | I2C, SPI, UART (EUSART), LINbus |
| Timers | 4 x 16-bit timers |
| 工作温度 | -40C to +85C (industrial) |
| MSL 等级 | Not applicable (through-hole) |
| Special Features | PPS, XLP, CIP, integrated temp indicator |
PIC16F18344-I/P 引脚配置
| 引脚 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| 引脚 2 | RA5 — Bidirectional I/O, analog input, PPS-capable |
| 引脚 3 | RA4 — Bidirectional I/O, analog input |
| 引脚 4 | RA3/MCLR — Bidirectional I/O or Master Clear (reset) input |
| 引脚 5 | RC5 — Bidirectional I/O, PWM output |
| 引脚 6 | RC4 — Bidirectional I/O, PWM output |
| 引脚 7 | RC3 — Bidirectional I/O, SPI/I2C function |
| 引脚 8 | RC2 — Bidirectional I/O, SPI/I2C function |
| 引脚 9 | RC1 — Bidirectional I/O, EUSART function |
| 引脚 10 | RC0 — Bidirectional I/O, EUSART function |
| 引脚 11 | RA2 — Bidirectional I/O, analog input |
| 引脚 12 | RA1 — Bidirectional I/O, analog input |
| 引脚 13 | RA0 — Bidirectional I/O, analog input |
| 引脚 14 | VSS — Ground reference |
| 引脚 15 | RA7 — Bidirectional I/O, oscillator |
| 引脚 16 | RA6 — Bidirectional I/O, oscillator |
| 引脚 17 | RC7 — Bidirectional I/O |
| 引脚 18 | RC6 — Bidirectional I/O |
| 引脚 19 | RB5 — Bidirectional I/O, PPS-capable |
| 引脚 20 | RB4 — Bidirectional I/O, PPS-capable |
典型应用
PIC16F18344-I/P 适用于 6 应用s: Battery-Powered IoT Sensor Node, Industrial Sensor Interface Module, Home Appliance Control Board, Automotive Body Electronics (Sub-System), Remote Control and HMI Devices, Lighting and LED Driver Controller.
Battery-Powered IoT Sensor Node
The PIC16F18344-I/P's XLP sleep currents in the nanoampere range and 1.8V to 5.5V VDD range fit coin-cell and 2x AA battery sensor nodes where the average current budget is set by sleep current rather than active current. Used as the MCU host for a periodic temperature/humidity sample-and-transmit cycle, it can run for years on a single CR2032 when the wake interval is tens of seconds. PPS lets the same PCB accommodate either SPI or I2C sensor variants without respins.
推荐
Industrial Sensor Interface Module
The PIC16F18344-I/P's 10-bit ADC with computation, multiple 16-bit timers, and EUSART/UART/SPI/I2C make it a flexible analog front-end for 4-20 mA loop sensors, RTD bridges, and digital encoder inputs in industrial modules. The -40C to +85C industrial temperature grade covers cabinet and factory-floor installations. The 20-PDIP package simplifies field-replaceable designs where through-hole assembly is preferred for serviceability.
推荐
Home Appliance Control Board
The PIC16F18344-I/P is well-suited to small appliance controllers - washing machine UI panels, microwave displays, air-purifier fans, and rice cooker HMI - because of its PWM channels for motor/LED control, zero-cross detection for triac firing, and CIPs that offload timing from the CPU. The 32 MHz core handles capacitive touch or encoder input while running a control loop without CPU saturation. Drop-in 20-PDIP package makes it a straightforward swap for older PIC16F family designs.
推荐
Automotive Body Electronics (Sub-System)
For non-safety automotive body applications such as interior lighting, seat controllers, mirror actuators, and door modules, the PIC16F18344-I/P's LINbus-capable EUSART and industrial temperature grade make it a viable low-cost controller. PPS simplifies PCB routing in confined body-module enclosures, and the 20-PDIP aids rapid prototyping in pre-production. Note: AEC-Q100 automotive qualification must be verified with Microchip for safety-relevant subsystems; the -I/P variant is industrial grade.
推荐
Remote Control and HMI Devices
Infrared remote controls, BLE/RF remote HMI, and small consumer keypads benefit from the PIC16F18344-I/P's XLP deep-sleep current, fast wake from sleep on pin change, and ample PWM for LED backlight or buzzer drive. The 7 KB Flash holds full IR protocol state machines and user-configurable code, while PPS allows the same firmware to drive either a UART- or SPI-connected RF module. Industrial temperature grade handles garage and outdoor environments.
推荐
Lighting and LED Driver Controller
The PIC16F18344-I/P's multiple 16-bit PWM channels, configurable logic cells, and zero-cross detect make it ideal for dimmable LED drivers, RGB strips, and smart bulbs. Complementary waveform generators simplify half-bridge driver timing for offline or PFC-fronted designs. With 7 KB Flash, designers can fit DMX or DALI receive state machines on-chip, reducing external component cost.
推荐产品汇总
工程参考数据： PIC16F18344-I/P ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F18344-E/P | PIC16F18324-E/P | PIC16F1829-I/P | PIC16F1789-I/P | PIC16F18446-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-PDIP | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same |
| Flash Memory | 7 KB | 7 KB | 7 KB | 14 KB | 28 KB | 28 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| PPS (Peripheral Pin Select) | Yes | Yes | Yes | No | No | Yes |
| CIP (Core Independent Peripherals) | Yes | Yes | Yes | Limited | Limited | Yes |
| XLP Low-Power | Yes (nanoamp sleep) | Yes | Yes | Yes | Partial | Yes |
关键差异点
- Latest-generation PIC16F183xx family with PPS, ADC-with-computation, and configurable logic cells （对比 PIC16F1829-I/P)
- Industrial temperature grade with XLP nanoamp sleep current （对比 PIC16F1789-I/P)
- 20-PDIP package supports breadboard prototyping and through-hole assembly （对比 PIC16F18344-I/SO)
- Drop-in 20-PDIP upgrade path within the PIC16F183xx family （对比 PIC16F18446-I/P)
设计说明
Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the VDD pin, and add a 1 uF to 10 uF bulk capacitor on the same rail. The PIC16F18344-I/P's wide 1.8V to 5.5V VDD range tolerates both 3.3 V and 5 V rails, but the XLP sleep current target only holds when VDD is decoupled and any unused analog pins are configured as digital outputs (or left at well-defined analog levels).
Route the ICSPDAT/ICSPCLK traces away from high-frequency switching nodes to avoid coupling programming glitches into the on-chip debug logic. The MCLR/VPP pin requires a 10 kohm pull-up to VDD for normal operation; the ICSP programming path needs an in-series resistor to allow debug tools to drive VPP. Keep the 20-PDIP footprint pads standard 2.54 mm pitch to maintain breadboard-compatibility for prototypes.
Estimated: based on typical PIC16F18344 power figures, sleep current at 3.3 V is around 30 nA with RTC running and around 1 nA in retention-only mode. Active current at 32 MHz and all peripherals on is approximately 7 mA. Designers often confuse PPS-mapped pins with default peripheral assignments - if a peripheral does not appear on the expected pin after code upload, verify PPS registers rather than the GPIO configuration. Also note that PPS is not available on every I/O pin; consult the datasheet pin allocation table.
Estimated: the SPI bus on the PIC16F18344 can drive up to roughly 10 MHz in master mode at 5 V VDD. For cable lengths over 100 mm, add series damping resistors (22-33 ohm) close to the MCU side to limit ringing on SCK/MOSI. For I2C buses with multiple targets, ensure pull-ups are sized for the cumulative capacitive load - typical 4.7 kohm pull-ups work for 100 kHz standard mode but should be lowered to 2.2 kohm for 400 kHz fast mode at higher bus capacitance.
合规信息
RoHS and lead-free status for PDIP-20 not explicitly stated in retrieved distributor data; consult Microchip product page for confirmation. The -I grade is industrial, not AEC-Q100 qualified.
