PIC16F18456T-I/SO - 8-Bit 32MHz XLP MCU, 28KB Flash | Microchip
MPN: PIC16F18456T-I/SO ✓ نشطPIC16F18456T-I/SO نظرة عامة
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, favored in cost-sensitive, deterministic, low-power embedded designs. Within the broader silicon taxonomy, a PIC16 belongs to the 8-bit MCU family, then Microcontroller, then Embedded Processing, then Semiconductor. The XLP (eXtreme Low-Power) lineage specifically targets battery-powered and energy-harvesting applications where nanoamp sleep currents and fast wake-up times dominate the design trade-off.
Key features include 28 KB Flash, 2 KB RAM, two PWMs, a 12-bit ADC with Computation (ADCC), a 5-bit DAC, a Comparator, the Complementary Waveform Generator (CWG), and communication peripherals: EUSART and two SPI/I2C. The ADCC automates averaging, oversampling, and threshold comparisons without CPU intervention, freeing the core for supervisory tasks and reducing average power.
Architecturally, the PIC16F18456 employs an enhanced mid-range 8-bit RISC core with a hardware multiply and a modified Harvard bus, allowing a single instruction cycle per clock and up to 32 MHz operation. The 12-bit ADCC extends beyond traditional 10-bit ADCs by integrating burst-averaging hardware, which is valuable for sensor signal conditioning in noisy environments.
Typical applications include IoT sensor nodes, consumer appliance control, battery-powered handheld instruments, automotive body and lighting sub-systems (when paired with Q-graded variants), and industrial sensor interfaces. The wide peripheral set allows one MCU to replace multiple discrete components in compact designs.
Design consideration: when migrating the 28-SOIC layout to a smaller footprint, evaluate the PIC16F18456-I/SS (28-SSOP) or PIC16F18456-I/SP (28-SPDIP) variants. For automotive AEC-Q100 needs, choose the PIC16F18456T-E/SOVAO part number explicitly.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the Microchip datasheet family to support faster component selection.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16F18456T-I/SO (نفس عامل الشكل والبصمة) — يختلف في Package, ADC, Comparators, PWM Modules, DAC.
PIC16F18456-I/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F18456-E/SO
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16F18446T-I/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F18455T-I/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F18446-I/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F18445-I/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F18456T-I/SO الحدود القصوى والخصائص الكهربائية
| Core Architecture | 8-bit PIC16 enhanced mid-range |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| RAM | 2 KB |
| EEPROM | 256 bytes |
| Max CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 12-bit ADCC with computation |
| DAC | 5-bit DAC |
| Comparators | Yes |
| PWM Channels | 2 |
| CWG | Complementary Waveform Generator |
| EUSART | 1 |
| SPI / I2C | 2 |
| العلبة | 28-pin SOIC (wide, 300 mil) |
| درجة حرارة التشغيل | -40C to +85C (Industrial) |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant |
| مستوى MSL | MSL1 |
تكوين أطراف PIC16F18456T-I/SO
| دبوس 1 | RA5/MCLR/VPP — Digital I/O / Master Clear (Reset) input / Programming voltage |
| دبوس 2 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| دبوس 3 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| دبوس 4 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| دبوس 5 | RA3/AN3 — Digital I/O / Analog input channel 3 |
| دبوس 6 | RA4/AN4 — Digital I/O / Analog input channel 4 |
| دبوس 7 | RA5/AN5 — Digital I/O / Analog input channel 5 |
| دبوس 8 | RC5 — Digital I/O |
| دبوس 9 | RC6 — Digital I/O |
| دبوس 10 | RC7 — Digital I/O |
| دبوس 11 | RB7 — Digital I/O |
| دبوس 12 | RB6/ICCK — Digital I/O / ICSP clock |
| دبوس 13 | RB5 — Digital I/O |
| دبوس 14 | RB4 — Digital I/O |
| دبوس 15 | RC0 — Digital I/O |
| دبوس 16 | RC1 — Digital I/O |
| دبوس 17 | RC2 — Digital I/O |
| دبوس 18 | RC3 — Digital I/O |
| دبوس 19 | VSS — Ground reference |
| دبوس 20 | VDD — Positive power supply |
| دبوس 21 | RA7 — Digital I/O |
| دبوس 22 | RA6 — Digital I/O |
| دبوس 23 | RB0/INT — Digital I/O / External interrupt |
| دبوس 24 | RB1 — Digital I/O |
| دبوس 25 | RB2 — Digital I/O |
| دبوس 26 | RB3/ICDAT — Digital I/O / ICSP data |
| دبوس 27 | RC4 — Digital I/O |
| دبوس 28 | RA0 — Digital I/O (alternate mapping reference) |
التطبيقات النموذجية
PIC16F18456T-I/SO مناسب لـ 6 التطبيقs: Battery-Powered IoT Sensor Nodes, Consumer Appliance Control, Industrial Sensor Interface Modules, Smart Lighting and LED Control, Automotive Body and Lighting Subsystems, Portable Handheld Instruments.
Battery-Powered IoT Sensor Nodes
The PIC16F18456T-I/SO is a strong match for IoT sensor endpoints thanks to its XLP nanoWatt sleep currents in the sub-microamp range and its ability to wake from sleep on peripheral triggers without waking the CPU. The 12-bit ADCC with built-in averaging is well suited for battery monitoring and environmental sensor reading; the EUSART handles low-power wireless modules such as LoRa or BLE transceivers for uplink, while the 1.8-5.5 V input range supports single-cell lithium directly without a boost converter, reducing BOM and quiescent loss. With 28 KB Flash and 2 KB RAM, the firmware footprint comfortably accommodates application logic plus small protocol stacks in the same 28-SOIC package.
موصى به
Consumer Appliance Control
In white-goods and small appliance controls the PIC16F18456T-I/SO brings deterministic interrupt response and Core Independent Peripherals (CIPs) that handle PWMs, comparators, and CWG dead-time without CPU intervention. The Complementary Waveform Generator (CWG) provides hardware dead-time for motor and half-bridge drive, important for small BLDC fans or solenoid actuators, while the 12-bit ADCC reads thermistor or current-sense feedback. The wide 1.8-5.5 V operating window accepts direct 3.3 V or 5 V rails common in appliance power supplies. The 28-SOIC package is well-suited to wave-solder and reflow assembly lines, and the industrial -40C to +85C grade covers kitchen and laundry environments.
موصى به
Industrial Sensor Interface Modules
For 4-20 mA loops, thermocouple conditioning, and analog front-end modules the PIC16F18456T-I/SO provides a 12-bit ADCC with hardware averaging and oversampling that simplifies firmware. The 5-bit DAC plus on-chip comparator enable closed-loop control without external analog; two SPI/I2C ports interface simultaneously to a digital sensor and a non-volatile FRAM. Operating from a 24 V industrial rail is straightforward with a small buck regulator ahead of the MCU. The 2 KB SRAM and 28 KB Flash allow Modbus or IO-Link protocol stacks alongside calibration data, all within a single 28-SOIC device. XLP sleep modes extend battery-backed retention in portable calibrators.
موصى به
Smart Lighting and LED Control
Smart lighting drivers benefit from the PIC16F18456T-I/SO's two 10-bit PWMs and the 16-bit PWM pair fed by the CWG and timer blocks. The 12-bit ADCC reads ambient-light sensors and thermistors for color-temperature feedback and thermal foldback, while the CWG provides synchronous dimming for high-brightness LEDs with programmable dead-time to prevent shoot-through. Native 5 V tolerance on GPIO simplifies direct interface to triac-dimming front ends and 0-10 V analog control. Industrial temperature grade and the 28-SOIC package support outdoor fixture electronics operating up to +85C under sunlight, with XLP sleep extending battery-backed wireless wall-switch retuners.
موصى به
Automotive Body and Lighting Subsystems
While the PIC16F18456T-I/SO itself is the industrial -40C to +85C variant, the same 28-SOIC footprint and peripheral map are available in AEC-Q100 qualified Q-grades for body-electronics modules such as interior lighting, mirror control, and HVAC panel drivers. The 12-bit ADCC handles multiple sensor inputs, the CWG drives PWM-controlled LED strings with hardware dead-time, and EUSART/SPI link to CAN transceivers or LIN buses. Confirm AEC-Q100 qualification and exact part number with the automotive variant (PIC16F18456T-I/SOVAO equivalent) before deployment; functional behavior is identical to the industrial grade but with extended stress testing for automotive environments.
موصى به
Portable Handheld Instruments
Handheld meters, scanners, and field instruments benefit from the PIC16F18456T-I/SO's XLP deep-sleep currents below 1 µA, rapid wake-up from sleep (typically a few microseconds), and ADC computation offload that keeps the CPU asleep during sensor readings. The 28 KB Flash fits measurement routines plus a small UI state machine, the 2 KB RAM supports moving-average filters on ADC bursts, and 5-bit DAC plus comparator generate audio feedback tones for continuity testing. Operating voltage from 1.8-5.5 V allows direct power from two AA cells or a single Li-ion cell, while the 28-SOIC package is easy to hand-prototype and small enough for compact handheld enclosures.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16F18456T-I/SO — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16F18456-I/SO | PIC16F18456-E/SO | PIC16F18446T-I/SO | PIC16F18455T-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (wide) | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Program Memory | 28 KB Flash | 28 KB Flash | 28 KB Flash | Different code memory size in same family | Smaller Flash footprint in same family |
| RAM | 2 KB | 2 KB | 2 KB | Same family, see datasheet | Same family, see datasheet |
| CPU Frequency (max) | 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 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C |
| Packaging Format | Tape & Reel | Tube | Tube/T&R by suffix | Tape & Reel | Tape & Reel |
| Indicative 1ku Price (USD) | $1.12 | Similar (slightly lower) | Higher (extended grade) | Similar | Lower |
أبرز الفروقات
- Industrial-grade 28-SOIC package with Tape & Reel (مقابلPIC16F18456-I/SO)
- Wider industrial temperature window minus extended-grade cost (مقابلPIC16F18456-E/SO)
- Larger Flash + RAM headroom in same pinout (مقابلPIC16F18455T-I/SO)
ملاحظات التصميم
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 20), with a second 10 µF bulk capacitor on the same rail near the MCU. Estimated: at 32 MHz active and 3.3 V supply, core current is roughly 4-5 mA; XLP sleep currents drop below 1 µA only when the system clock is gated. Place a bulk capacitor no more than 5 mm from VDD to suppress voltage glitches during sleep-to-active transitions.
The MCLR/RA5 pin (pin 1) is shared with programming voltage; do not pull MCLR high directly with a noisy source. Use a 10 kΩ pull-up to VDD and a 100 nF cap to VSS for clean reset behavior and ICSP programming reliability. For 28-SOIC wide-body footprints, ensure pad length matches IPC-7351 nominals to avoid tombstoning during reflow.
Do not exceed 5.5 V on any pin or VDD; the PIC16F18456T-I/SO is 5.5 V tolerant but absolute maximum ratings still trigger latch-up at higher transients. Enable the Brown-Out Reset (BOR) at a trip level matching the regulator tolerance to prevent code corruption during supply brown-outs. Watch oscillator start-up timer settings when switching clock sources between INTOSC and external crystal.
معلومات الامتثال
RoHS and lead-free per Microchip product page; industrial -40C to +85C grade. For automotive AEC-Q100 needs, request the automotive-qualified Q-suffix variant.
