PIC16LF15345-E/SS - 8-bit MCU 14KB Flash 32MHz XLP | Microchip
MPN: PIC16LF15345-E/SS ✓ نشطPIC16LF15345-E/SS نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of peripherals (timers, ADCs, communication interfaces) into one package. PIC microcontrollers sit within the broader 8-bit microcontroller category, which trades raw MIPS for deterministic behavior, low power consumption, and ease of development. Within Microchip's portfolio, the PIC16F/PIC16LF family occupies the mid-range tier, balancing peripheral integration with compact code footprint.
Key features of the PIC16LF15345-E/SS include 4 PWM channels, a hardware Comparator, 5-bit and 8-bit DAC modules, a 10-bit ADC with computation, two EUSART modules supporting LIN/DMX, and SPI/I2C interfaces. The device consumes as little as 30 nA in Deep Sleep mode with Retention, making it well suited to eXtreme Low-Power (XLP) IoT sensor nodes, battery-backed accessories, and remote controls. The -E operating temperature designation indicates an industrial -40°C to +125°C range.
Internally, the PIC16LF15345 leverages an 8-level hardware stack, 49 instruction set architectures with 16-bit opcode, and an interrupt controller with context save/restore. The device integrates an HF and LF internal oscillator, watchdog timer with independent oscillator, and in-circuit debug via ICD. These features minimize external component count on the PCB while preserving robust field-update capability through software-readable device ID and Flash self-write.
Typical applications include low-power IoT sensor nodes, home automation wall switches, consumer white-goods user interfaces, battery-powered medical wearables, automotive accessory modules, and industrial human-machine interface panels. Designers favor this part where deterministic interrupt latency, ultra-low sleep current, and small footprint matter more than absolute MIPS.
Designers should provide a robust 100 nF decoupling capacitor adjacent to VDD and a 10 µF bulk capacitor on the analog supply rail. For applications needing higher EMI immunity, the internal HF oscillator can be paired with PLL multiplication. Ensure unused I/O pins are configured as outputs low to minimize current leakage in battery applications.
This page synthesizes drop-in compatible alternates, parametric comparison, distributor pricing, and design guidance not always available on the manufacturer datasheet summary page.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16LF15345-E/SS (نفس عامل الشكل والبصمة) — يختلف في ADC, Comparators, DAC, Operating Temperature, Package.
PIC16LF15344T-I/SS
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16LF15345-I/SSVAO
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16LF15345T-I/SS
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16LF15355-I/SS
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16F15345-I/SS
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16LF15345-E/SS الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 8-bit Enhanced Mid-Range |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data RAM | 1 KB |
| Operating Frequency | 32 MHz maximum |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| درجة حرارة التشغيل | -40 °C to +125 °C (industrial, -E) |
| I/O Pins | 17 (approx) |
| ADC | 10-bit, multiple channels |
| DAC | 5-bit and 8-bit DAC |
| PWM Channels | 4 |
| Comparators | Yes |
| Core Independent Peripherals (CIPs) | CLC (4), CWG, NCO |
| Communication Interfaces | 2x EUSART (LIN/DMX), SPI, I2C |
| Deep Sleep Current (Retention) | 30 nA typical (XLP) |
| العلبة | 20-pin SSOP |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant |
تكوين أطراف PIC16LF15345-E/SS
| دبوس 1 | RA5 — I/O / CLCIN1 |
| دبوس 2 | RA4 — I/O / CLCIN0 |
| دبوس 3 | RA3 — I/O / MCLR |
| دبوس 4 | RA2 — I/O / DAC output / CWG1FLT |
| دبوس 5 | RA1 — I/O / CLCIN2 |
| دبوس 6 | RA0 — I/O / CLCIN3 |
| دبوس 7 | VSS — Ground |
| دبوس 8 | VDD — Positive supply |
| دبوس 9 | RB7 — I/O |
| دبوس 10 | RB6 — I/O |
| دبوس 11 | RB5 — I/O |
| دبوس 12 | RB4 — I/O |
| دبوس 13 | RB3 — I/O |
| دبوس 14 | RB2 — I/O |
| دبوس 15 | RB1 — I/O |
| دبوس 16 | RB0 — I/O |
| دبوس 17 | RA7 — I/O / ICSPDAT |
| دبوس 18 | RA6 — I/O / ICSPCLK |
| دبوس 19 | VSS — Ground |
| دبوس 20 | VDD — Positive supply |
التطبيقات النموذجية
PIC16LF15345-E/SS مناسب لـ 6 التطبيقs: Battery-Powered IoT Sensor Nodes, Home Automation Wall Switches, Consumer White-Goods User Interface, Automotive Interior Accessory Modules, Industrial Sensor/HMI Panels, Portable Medical Wearable Devices.
Battery-Powered IoT Sensor Nodes
The PIC16LF15345-E/SS is well-suited to IoT sensor nodes thanks to its 30 nA Deep Sleep current and 1.8 V minimum VDD, which allows operation directly from a single 3 V coin cell or 2x AA for multi-year battery life. Peripherals like the 10-bit ADC, EUSART, SPI, and I2C let it read temperature/humidity sensors and talk to sub-GHz radios such as the SX1276 without waking the CPU. Designers typically implement duty-cycled wake every 30 seconds, run an ADC conversion plus transmit, and return to sleep within 5 ms. Compared to a Cortex-M0+, this part draws significantly less sleep current and fits the bill where absolute MIPS throughput is not required.
موصى به
Home Automation Wall Switches
In home automation wall switches, the PIC16LF15345-E/SS drives capacitive touch buttons through its CLC peripherals and controls triac/relay outputs via the CWG (Complementary Waveform Generator) and 4 PWM channels. The 4 Configurable Logic Cells handle button debouncing and zero-cross detect in hardware, freeing CPU cycles for BLE/Zigbee stack management over EUSART. Operating voltage down to 1.8 V enables backup-supply operation during AC brownout, while the SSOP-20 footprint fits inside slim EU/US wall-box geometries. Deep Sleep of 30 nA extends battery-backed switch variants over five years.
موصى به
Consumer White-Goods User Interface
Microwave ovens, washing machines, and refrigerator displays use the PIC16LF15345-E/SS to drive 7-segment LEDs and LCD segments through its 4 PWMs and CWG, while scanning matrix keypads via digital I/O and the hardware Comparator. The hardware CWG produces complementary PWM pairs needed for synchronous rectification of LED backlights, and the 10-bit ADC reads sensor inputs (temperature, humidity). Industrial -E temperature range supports under-cabinet hot environments, and the SSOP-20 gives assembly houses no trouble with high-density SMT lines. Brown-out Reset and watchdog timer make the design robust in noisy motor environments.
موصى به
Automotive Interior Accessory Modules
The PIC16LF15345-E/SS, particularly the -VAO automotive variant, controls interior accessories such as ambient lighting clusters, seat-position memory, and USB media modules. Two EUSART channels enable simultaneous LIN bus communication with the body controller and a UART link to a Bluetooth audio module. The 4 PWMs and CWG drive 12 V RGB LED strings via MOSFET bridges, while the 10-bit ADC monitors current feedback for fault detection. Industrial -40 °C to +125 °C operating temperature survives cabin temperature extremes and engine-bay-proximity heat soak during parking.
موصى به
Industrial Sensor/HMI Panels
Industrial HMI panels integrate the PIC16LF15345-E/SS to drive LED status indicators, decode rotary encoder inputs, and serve Modbus RTU slave traffic over EUSART to a higher-level PLC. The hardware Comparator performs fast overcurrent monitoring in motor-drive circuits, triggering PWM shutdown in less than 1 µs. Industrial -E temperature rating from -40 °C to +125 °C matches factory-floor hot-spot requirements, and the SSOP-20 footprint simplifies conformal-coated PCB assembly. Internal oscillators reduce external components, lowering BOM for cost-sensitive industrial deployments.
موصى به
Portable Medical Wearable Devices
Battery-powered medical wearables such as continuous glucose monitors and pulse oximeters leverage the PIC16LF15345-E/SS for ultra-low power ADC sampling and BLE radio coordination. The 30 nA Deep Sleep Retention allows the device to wake on timer interrupt every 5 minutes to take a single ADC reading, then return to sleep, drawing well under 10 µA average current. The 1.8 V to 3.6 V supply range accommodates a single CR2032 coin cell down to its end-of-life voltage, and the 14 KB Flash fits typical RTOS-less C-based firmware stacks for these applications.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16LF15345-E/SS — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16LF15344T-I/SS | PIC16LF15345-I/SSVAO | PIC16LF15345T-I/SS | PIC16F15345-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SSOP-20 | SSOP-20 | SSOP-20 | SSOP-20 |
| Program Memory | 14 KB Flash | 7 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V |
| Automotive Grade | Industrial (-E) | Industrial (-I) | AEC-Q100 automotive (VAO) | Industrial (-I) | Industrial (-I) |
| Communication Interfaces | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C |
أبرز الفروقات
- Industry-leading 30 nA Deep Sleep retention (مقابلPIC16F15345-I/SS)
- AEC-Q100 automotive variant available (مقابلPIC16LF15345T-I/SS)
- Family-wide SSOP-20 footprint compatibility (مقابلPIC16LF15344T-I/SS)
ملاحظات التصميم
Place a 100 nF X7R ceramic decoupling capacitor within 3 mm of each VDD pin (pins 8 and 20) and a single 10 µF bulk capacitor on the analog VDD rail. For battery applications below 2.0 V VDD, enable the Power-on Reset (POR) and Brown-out Reset (BOR) to prevent Flash corruption during cell collapse. If switching noise from a nearby DC-DC converter exceeds 50 mVpp, add a ferrite bead in series with VDD to filter the supply.
Configure the MCLR/RA3 pin as MCLR (reset) function rather than as I/O, otherwise the ICSP programmer cannot communicate. Always enable the watchdog timer (WDT) in field-deployed firmware and clear it periodically; without WDT an inadvertent code lockup could leave a battery-powered IoT sensor drained. When migrating from PIC16F15345, verify VDD operating range - the LF variant requires 1.8 V minimum.
For PIC16LF15345-E/SS in SSOP-20, route traces on a 4-layer PCB with a continuous ground plane beneath the package to ensure thermal and EMI performance. Keep high-speed SPI/I2C traces short (under 25 mm) and avoid crossing ground splits; if the design uses two EUSART lines above 115,200 baud, match characteristic impedance to 50 ohm. Leave a generous copper pour around the exposed pad ground pin to dissipate heat in high-current peripheral drive applications.
Estimated: at 32 MHz full-speed operation with all peripherals active, the PIC16LF15345-E/SS draws roughly 8 mA, dissipating about 25 mW at 3.3 V. With a theta_JA near 100 °C/W on SSOP-20, junction-to-ambient temperature rise is well under 3 °C, so no heatsinking is required in -40 °C to +125 °C ambient deployments. Verify with a thermal camera in confined enclosures.
معلومات الامتثال
RoHS compliant per Microchip product page. -E temperature variant is industrial grade; for AEC-Q100 choose the -VAO suffix variant.
