PIC16LF627A-I/SO - 8-bit MCU 1.75KB Flash 20MHz SOIC-18 | Microchip
MPN: PIC16LF627A-I/SO ✓ فعالPIC16LF627A-I/SO جائزہ
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, on-board program memory (Flash/ROM), CPU, RAM, and peripherals (timers, USART, ADC, comparators, GPIO). It sits in the embedded-control hierarchy: microcontroller -> microprocessor -> semiconductor -> integrated circuit. The PIC16F627A family uses Microchip's RISC instruction set with only 35 single-word instructions, 200 ns instruction cycle at 20 MHz, and upwards code compatibility with PIC16F627, PIC16C62XA, PIC16C5X, and PIC12CXXX devices, simplifying migration paths.
Key features include a 4 MHz internal RC oscillator (selectable to 48 kHz LF), 128 bytes of EEPROM data memory, 16 digital I/O lines, a USART module, one capture/compare/PWM (CCP) module, two analog comparators with programmable voltage reference, a watchdog timer with its own RC oscillator, brown-out detect (BOD), power-on reset (POR), power-up timer (PWRT), and oscillator start-up timer (OST). Programmable weak pull-ups on PORTB and weak pull-ups on PORTB reduce BOM cost.
The architecture separates program Flash from data EEPROM, allowing in-application re-programming without disturbing live data. The LF suffix extends VDD operation down to 2.0V (versus 2.0V-5.5V for the F version), making this MCU suitable for battery-backed and 3.3V-only designs. The 18-pin SOIC package offers 31.6 C/W typical theta-JA, adequate for industrial-temperature environments (-40C to +85C for the I suffix).
Typical applications include low-cost industrial control nodes, sensor signal conditioning with on-chip comparators, low-speed UART bridges, hobbyist/educational projects, and battery-powered instrumentation where the LF core reduces quiescent draw.
When designing, note that the LF core's 2.0V minimum VDD rules out 5V-only peripherals; choose the F (PIC16F627A) variant if 2.0V-5.5V is acceptable but you may occasionally drop to 4.5V. Decouple VDD with 0.1 uF + 10 uF ceramics placed within 5 mm of the pins.
This page synthesizes distributor pricing, drop-in PIC16 alternatives, and design notes not found in the standalone Microchip datasheet.
کے لیے ڈراپ اِن متبادل PIC16LF627A-I/SO — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16LF627A-I/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Internal Oscillator, Core Architecture, Operating Temperature, Timers.
PIC16F627A-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F628A-I/SO
✅ ڈراپ-اِن✗ اسٹاک سے باہر
$2.32 / یونٹ
ڈیٹا شیٹ دیکھیں →PIC16F648A-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF627-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF627A-I/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 8-bit RISC |
| Program Memory Type | Flash |
| Program Memory Size | 1.75 KB (1K x 14 words) |
| RAM | 224 bytes |
| EEPROM | 128 bytes |
| Maximum Clock Speed | 20 MHz (200 ns instruction cycle) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V (LF variant) |
| I/O Pins | 16 |
| پیکیج | 18-pin SOIC (SO) |
| Internal Oscillator | 4 MHz, software selectable LF mode (48 kHz typical) |
| Instruction Set | 35 single-word instructions |
| USART | 1 (addressable Enhanced USART) |
| CCP Module | 1 (Capture / Compare / PWM) |
| Comparators | 2 analog with programmable voltage reference |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Brown-out Detect (BOD) | Yes |
| Power-on Reset (POR) / PWRT / OST | Yes |
| Programmable Weak Pull-ups | Yes (PORTB) |
| آپریٹنگ درجہ حرارت | -40 C to +85 C (I suffix, industrial) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant |
PIC16LF627A-I/SO پن کنفیگریشن
| پن 1 | RA2/AN2/CVREF/VREF+ — GPIO RA2 / Analog input 2 / Comparator Vref output / Vref+ |
| پن 2 | RA3/AN3/CMP1/VREF- — GPIO RA3 / Analog input 3 / Comparator 1 output / Vref- |
| پن 3 | RA4/AN4/T0CKI/C2OUT — GPIO RA4 / Analog input 4 / Timer0 clock in / Comparator 2 output (open-drain) |
| پن 4 | RA5/MCLR/VPP — GPIO RA5 / Master Clear (reset) input / Programming voltage |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — GPIO RB0 / External interrupt input |
| پن 7 | RB1/RX/DT — GPIO RB1 / USART RX (asynchronous) or data line (synchronous) |
| پن 8 | RB2/TX/CK — GPIO RB2 / USART TX (asynchronous) or clock line (synchronous) |
| پن 9 | RB3/CCP1 — GPIO RB3 / CCP1 module input/output (capture/compare/PWM) |
| پن 10 | RA0/AN0 — GPIO RA0 / Analog input 0 |
| پن 11 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| پن 12 | RB4/PGM — GPIO RB4 / Low-voltage programming input (interrupt-on-change) |
| پن 13 | RB5 — GPIO RB5 (interrupt-on-change) |
| پن 14 | RB6/PGC — GPIO RB6 / ICSP clock input (interrupt-on-change) |
| پن 15 | RB7/PGD — GPIO RB7 / ICSP data input/output (interrupt-on-change) |
| پن 16 | RA6/OSC2/CLKOUT — GPIO RA6 / Oscillator crystal output / Clock output FOSC/4 |
| پن 17 | RA7/OSC1/CLKIN — GPIO RA7 / Oscillator crystal input / External clock input |
| پن 18 | RA1/AN1 — GPIO RA1 / Analog input 1 |
عام استعمالات
PIC16LF627A-I/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Battery-Powered Sensor Node, Industrial Comparator Controller, Low-Speed UART Bridge / Protocol Converter, Hobbyist and Educational MCU Platform, LED Lighting Control Module, Automotive Interior Accessory Control (Non-Safety).
Battery-Powered Sensor Node
The PIC16LF627A-I/SO is well-matched to 3.3 V battery-powered sensor nodes because its LF core operates from 2.0 V to 5.5 V, enabling direct connection to two AA alkaline cells or a single Li-coin cell. Its two on-chip analog comparators with programmable voltage reference allow threshold-based sensor wake-up without an ADC, reducing average current to microamp levels during sleep. The internal 4 MHz RC oscillator eliminates an external crystal for cost-sensitive nodes. The 224 bytes RAM is sufficient for buffering sensor bursts before UART transmission. Compared to higher-end MCUs, the PIC16LF627A cuts BOM cost by ~30% while still providing USART, CCP, and Watchdog Timer for reliable remote deployments.
تجویز کردہ
Industrial Comparator Controller
The PIC16LF627A-I/SO serves industrial comparator-control loops by leveraging its two on-chip analog comparators and programmable voltage reference. Each comparator has independent programmable hysteresis, allowing direct interface to 4-20 mA current-loop sensors, NTC thermistors, or photodiodes without external op-amps. The CCP module generates PWM outputs for proportional actuator control, while the USART streams diagnostics to a host PLC. The industrial -40 C to +85 C temperature grade and brown-out detect ensure reliable operation on noisy 24 V factory rails stepped down to 5 V or 3.3 V. Compared to discrete logic implementations, this 8-bit MCU integrates six functions in one SOIC-18 device.
تجویز کردہ
Low-Speed UART Bridge / Protocol Converter
For UART-to-UART protocol conversion, the PIC16LF627A-I/SO provides a hardware USART supporting up to 115.2 kbps at 20 MHz. Designers can implement RS-232 to RS-485 conversion, Modbus RTU framing, or transparent bridges with 1.75 KB Flash for simple protocol stacks. The 16 GPIO pins can drive status LEDs and DE/RE flow-control lines for RS-485 transceivers. Compared to UART-only logic translators, this MCU adds configurable framing, address filtering, and software upgradability in a single 18-pin SOIC, reducing board area and BOM cost.
تجویز کردہ
Hobbyist and Educational MCU Platform
The PIC16LF627A-I/SO is a popular choice for hobbyist and educational use due to its small 18-pin SOIC footprint, easy programming through ICSP (In-Circuit Serial Programming) on RB6/RB7, and only 35 instructions that students can master in days. The internal 4 MHz oscillator eliminates external clock components on breadboards. Free MPLAB X IDE and XC8 compiler support make development cost-free for learners. Compared to Arduino-style boards, this MCU is sub-$3 in single-piece quantities and teaches bare-metal embedded programming without abstraction layers.
تجویز کردہ
LED Lighting Control Module
The PIC16LF627A-I/SO drives LED lighting controllers via its hardware PWM (CCP) module capable of 10-bit resolution at appropriate PWM frequencies. The 16 GPIO lines can scan a small keypad, drive status indicators, and sink 25 mA per pin (PORTB) directly to LED arrays. Internal comparators can implement closed-loop current sensing without a dedicated op-amp. The 1.75 KB Flash holds basic dimming curves and color-mixing profiles. Compared to dedicated LED-driver ICs, this MCU adds flexibility for custom protocols and remote firmware updates at sub-$3 BOM cost.
تجویز کردہ
Automotive Interior Accessory Control (Non-Safety)
For non-safety automotive interior accessories (ambient lighting, USB charger controllers, HVAC trim controls), the PIC16LF627A-I/SO provides 16 GPIO, USART for body-CAN bridges, and CCP for PWM motor/light dimming. Note that this part is not AEC-Q100 qualified; for safety-critical or under-hood applications, designers must select AEC-Q100-qualified PIC16 alternatives. Compared to ASIC solutions, this MCU offers reprogrammable control logic that simplifies late-stage feature changes during automotive platform refreshes, while keeping per-unit cost below $3.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16LF627A-I/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F627A-I/SO | PIC16F628A-I/SO | PIC16F648A-I/SO | PIC16LF627A-I/P | PIC16LF627-04I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin SOIC (SO) | 18-pin SOIC (SO) - same | 18-pin SOIC (SO) - same | 18-pin SOIC (SO) - same | 18-pin PDIP (P) - different | 18-pin SOIC (SO) - same |
| Program Memory | 1.75 KB Flash | 1.75 KB Flash | 3.5 KB Flash | 4 KB Flash | 1.75 KB Flash | 1.75 KB EPROM (not Flash) |
| RAM | 224 bytes | 224 bytes | 224 bytes | 256 bytes | 224 bytes | 224 bytes |
| Maximum Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 4 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V | 2.0 V to 5.5 V (F core optimized for 3.0-5.5 V) | 2.0 V to 5.5 V (F core) | 2.0 V to 5.5 V (F core) | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Flash Endurance | 1,000 write/erase cycles | 10,000 write/erase cycles | 10,000 write/erase cycles | 10,000 write/erase cycles | 1,000 write/erase cycles | OTP/EPROM (not Flash) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | EPROM (one-time-programmable family) |
| Industrial Temperature Range | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
اہم امتیازی خصوصیات
- Lowest cost 18-pin PIC16 with USART and dual comparators (بمقابلہPIC16F628A-I/SO)
- Low-voltage LF core for sub-3 V battery operation (بمقابلہPIC16F627A-I/SO)
- Drop-in 18-pin SOIC upgrade path to higher Flash densities (بمقابلہPIC16F648A-I/SO)
ڈیزائن نوٹس
Decouple VDD (pin 11) with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, plus a bulk 10 uF tantalum or aluminum if the load has switching transients. The LF core's quiescent current in Sleep mode is approximately 1 uA at 3.3 V, but rises with active peripherals. For battery life estimation: average I = I_sleep * (1 - duty) + I_active * duty, where duty is the active fraction. Estimated: a 1000 mAh CR2032 cell with 0.1% active duty yields >10-year battery life.
When routing the 18-pin SOIC footprint, keep traces to RA0/RA1 analog inputs short and guarded by a ground pour to minimize comparator-noise coupling. The MCLR/VPP pin (pin 4) requires a 10 kohm pull-up to VDD; do not leave floating. For ICSP programming, expose RB6 (PGC) and RB7 (PGD) on test points. According to Microchip DS41196E section 14, decoupling should also include a small ferrite bead if the board shares ground with switching power converters.
Common pitfalls: (1) MCLR left floating will cause spurious resets; always pull up to VDD through 10 kohm. (2) LF variant Flash endurance is only 1,000 cycles - if firmware updates are expected, choose F-variant. (3) The internal 4 MHz oscillator has +/- 1% accuracy after calibration but +/- 5% over temperature - use an external crystal if UART baud accuracy matters. (4) Pins RA4 and RB4-RB7 have TTL input levels, not CMOS; do not drive them with 5 V CMOS signals while VDD is 2.0 V without level translation. (5) Two analog comparators share their non-inverting input with the CVREF output - avoid connecting two external signals to the same rail simultaneously.
تعمیل کی معلومات
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications select AEC-Q100-qualified PIC16 variants. REACH compliance declared by Microchip. MSL level not extracted from provided data and marked [DATA_NEEDED] in specs.