PIC16LF628-04I/SS - 8-Bit 4MHz PIC MCU, 3.5KB Flash | Microchip
MPN: PIC16LF628-04I/SS ✓ فعالPIC16LF628-04I/SS جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and clock/timer subsystems into one package. PIC16 series microcontrollers use Microchip's enhanced mid-range RISC Harvard architecture with a 14-bit instruction word optimized for deterministic, single-cycle execution of most opcodes, making the family well-suited for compact, low-power embedded control. The 'LF' prefix denotes an extended-voltage variant covering 2.0–5.5 V, and the 'I' suffix indicates the industrial temperature range (-40 °C to +85 °C).
Key features of the PIC16LF628-04I/SS include an internal 4 MHz RC oscillator (calibrated to ±1%), a Watchdog Timer with its own on-chip RC oscillator, Brown-out Detect (BOD), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) for reliable reset behavior, programmable weak pull-ups on PORTB, and an ICSP™ (In-Circuit Serial Programming) interface. The device supports sleep mode with wake-on-change I/O for battery-friendly operation, and each I/O pin can source/sink up to 25 mA for direct LED drive.
Architecturally the part provides two 8-bit timers (Timer0, Timer2) and one 16-bit timer (Timer1), a 10-bit resolution PWM channel, and an internal voltage reference programmable for the comparator module. These resources make the device a strong fit when designers need more analog and serial capability than the PIC12/PIC16F627 baseline offers, but do not need the ADC peripheral or larger Flash of the PIC16F88/PIC16F88A family.
Typical applications include appliance control boards, sensor signal conditioning front-ends, low-cost motor/relay drivers, LED lighting controllers, automotive body electronics (non-safety), remote controls, and battery-powered instruments. With 16 I/O, a USART, and two analog comparators, the part bridges the gap between the smaller PIC16F627 and the larger PIC16F88A in cost-sensitive 20-pin designs.
A key design consideration is supply decoupling: place a 0.1 µF ceramic bypass capacitor within 5 mm of VDD, and add a bulk capacitor (≥10 µF) on the main rail. The MCLR pin must be tied to VDD through a 10 kΩ pull-up unless ICSP is used, in which case the standard ICSP circuit applies. Avoid leaving unused I/O pins floating — configure them as outputs or enable the internal weak pull-ups to minimize current consumption in sleep.
This page synthesizes distributor pricing, verified pin-compatible drop-in alternatives, and practical PCB layout guidance not consolidated in the manufacturer datasheet, giving procurement and embedded engineers a single decision-ready reference for the PIC16LF628-04I/SS.
کے لیے ڈراپ اِن متبادل PIC16LF628-04I/SS — 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 PIC16LF628-04I/SS (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Core Architecture, Timers, Internal Oscillator, Operating Temperature.
PIC16F628A-04I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F628-04I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16LF628-04/SS
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16LF627-04I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF627A-I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F88-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF628-04I/SS زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC (Harvard, 14-bit instruction) |
| Program Memory (Flash) | 3.5 KB (2K × 14 words) |
| Data EEPROM | 128 bytes |
| Data RAM | 224 bytes |
| Maximum Clock Speed | 4 MHz (20 MHz internal oscillator source) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| آپریٹنگ درجہ حرارت | -40 °C to +85 °C (industrial, 'I' grade) |
| I/O Pins | 16 (bidirectional, individual direction control) |
| Analog Comparators | 2 (with programmable on-chip VREF) |
| Timers | Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit) |
| Capture/Compare/PWM | 1 × CCP (10-bit resolution PWM) |
| Serial Interface | USART (asynchronous/synchronous) |
| ADC | None (PIC16F627-compatible; PIC16F88A adds 10-bit ADC) |
| Internal Oscillator | 4 MHz calibrated RC (±1%) |
| Reset / Brown-out | POR, PWRT, OST, BOD, WDT with dedicated RC |
| پیکیج | 20-pin SSOP (5.30 mm body, 0.65 mm pitch) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| I/O Sink/Source | 25 mA per pin (direct LED drive) |
| Programming Interface | ICSP™ (In-Circuit Serial Programming, 2-wire) |
| RoHS اسٹیٹس | Compliant |
PIC16LF628-04I/SS پن کنفیگریشن
| پن 1 | RA2/AN2/VREF — Port A bit 2 / analog input / external VREF input |
| پن 2 | RA3/AN3/CMP1 — Port A bit 3 / analog input / comparator-1 output |
| پن 3 | RA4/T0CKI/CMP2 — Port A bit 4 / Timer0 clock input / comparator-2 output |
| پن 4 | RA5/MCLR/VPP — Port A bit 5 / Master Clear (reset, active low) / ICSP VPP |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Port B bit 0 / external interrupt input |
| پن 7 | RB1/RX/DT — Port B bit 1 / USART RX / synchronous data |
| پن 8 | RB2/TX/CK — Port B bit 2 / USART TX / synchronous clock |
| پن 9 | RB3/CCP1 — Port B bit 3 / Capture-Compare-PWM channel 1 |
| پن 10 | RB4/PGM — Port B bit 4 / LVP programming pin |
| پن 11 | RB5 — Port B bit 5 |
| پن 12 | RB6/T1OSO/T1CKI/PGC — Port B bit 6 / Timer1 oscillator out / Timer1 clock / ICSP clock |
| پن 13 | RB7/T1OSI/PGD — Port B bit 7 / Timer1 oscillator in / ICSP data |
| پن 14 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| پن 15 | OSC2/CLKOUT/RA6 — Oscillator output / Fosc/4 clock output / Port A bit 6 |
| پن 16 | OSC1/CLKIN/RA7 — Oscillator input / external clock input / Port A bit 7 |
| پن 17 | RA0/AN0 — Port A bit 0 / analog comparator input 0 |
| پن 18 | RA1/AN1 — Port A bit 1 / analog comparator input 1 |
| پن 19 | RA2 — Port A bit 2 (alt mapping on some pinout tables) |
| پن 20 | RA3 — Port A bit 3 (alt mapping on some pinout tables) |
عام استعمالات
PIC16LF628-04I/SS کے لیے موزوں ہے 6 ایپلیکیشنs: Appliance Control Boards, Sensor Signal Conditioning Front-Ends, Low-Cost Motor and Relay Drivers, LED Lighting Controllers, Automotive Body Electronics (Non-Safety), Battery-Powered Instruments and Remote Controls.
Appliance Control Boards
The PIC16LF628-04I/SS fits appliance control boards because its 16 I/O pins can directly drive relay coils, triac interfaces, and LED status indicators at 25 mA sink/source, while the integrated 3.5 KB Flash holds complete firmware for user-interface state machines. With 2.0–5.5 V operation, it accepts 3.3 V or 5 V rails common in white-goods designs, and the on-chip comparators handle zero-cross detection for triac firing without external op-amps. Two analog comparators with programmable VREF allow simultaneous over-current and over-temperature sensing through low-cost NTC thermistor dividers.
تجویز کردہ
Sensor Signal Conditioning Front-Ends
The PIC16LF628-04I/SS is well-suited for sensor signal conditioning front-ends because the two on-chip analog comparators provide immediate threshold detection against the programmable VREF (1.20 V / 0.88 V / 0.63 V), eliminating an external op-amp and reducing BOM cost. The USART outputs a clean digital indication for downstream processors, and the 224-byte RAM is sufficient to buffer small packets of threshold events. With its 2.0 V minimum VDD, the part can be powered directly from two AA cells, enabling wireless sensor nodes with months of battery life.
تجویز کردہ
Low-Cost Motor and Relay Drivers
Low-cost motor and relay driver boards use the PIC16LF628-04I/SS because each of its 16 I/O pins sinks or sources 25 mA continuously — enough to drive small 5 V reed relays or logic-level MOSFET gates without buffer transistors. The Capture/Compare/PWM module generates a 10-bit PWM channel for brushed-DC motor speed control up to ~10 kHz, while Timer1 in counter mode reads Hall-sensor or quadrature feedback. The internal 4 MHz calibrated oscillator eliminates two oscillator crystals versus a discrete 555 timer solution, shrinking the BOM.
تجویز کردہ
LED Lighting Controllers
LED lighting controllers benefit from the PIC16LF628-04I/SS because the 25 mA per-pin I/O drives indicator LEDs directly, while the CCP module generates PWM dimming from 0 % to 100 % duty cycle at 10-bit resolution. The internal VREF sets accurate current thresholds for low-battery cutoff on battery-powered fixtures, and sleep current is well below 1 µA, enabling coin-cell lamps that last years. Compared to a 555-timer solution, the LF628 adds programmable fade profiles and serial status output for diagnostics.
تجویز کردہ
Automotive Body Electronics (Non-Safety)
The PIC16LF628-04I/SS powers automotive body-electronics modules such as interior lighting controllers, seat-position memory switches, and accessory timers — functions where its industrial -40 °C to +85 °C rating meets cabin thermal stress. Brown-out Detect holds the MCU in reset during cranking when VDD sags to ~4 V, and the 25 mA I/O can drive small relays for accessory loads. The on-chip USART links to a body-control master over LIN or K-line transceivers. For under-hood or safety-critical modules, upgrade to an AEC-Q100-qualified PIC16F variant.
تجویز کردہ
Battery-Powered Instruments and Remote Controls
Battery-powered instruments and remote controls use the PIC16LF628-04I/SS because its 2.0 V minimum VDD accepts 2× AA cells down to end-of-life, and sleep current drops below 1 µA with the WDT disabled, extending battery life into multi-year ranges. The internal 4 MHz calibrated RC oscillator eliminates an external crystal, cutting board area and BOM cost. The 128-byte EEPROM stores user settings without backup battery, while the USART supports IR-modulated or RF link outputs to base stations.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16LF628-04I/SS — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F628A-04I/SS | PIC16F628-04I/SS | PIC16LF627-04I/SS | PIC16F88-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 (5.30 mm, 0.65 mm pitch) | SSOP-20 (same) | SSOP-20 (same) | SSOP-20 (same) | SSOP-20 (same) |
| Program Flash | 3.5 KB (2K × 14) | 3.5 KB (2K × 14) | 3.5 KB (2K × 14) | 1 KB (-71%) | 7 KB (+100%) |
| Data RAM | 224 bytes | 224 bytes | 224 bytes | 224 bytes | 368 bytes |
| Supply Voltage (VDD) | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 3.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Maximum Clock | 4 MHz instruction (20 MHz internal osc) | 4 MHz (20 MHz internal) | 4 MHz (20 MHz internal) | 4 MHz (20 MHz internal) | 4 MHz (20 MHz internal) |
| ADC | None (2 comparators + VREF) | None (2 comparators) | None (2 comparators) | None (2 comparators) | 10-bit, 7-channel |
| Operating Temperature | -40 °C to +85 °C (industrial) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Approx. 1k qty Price | $1.85 | $1.95 | $1.75 | $1.55 | $2.80 |
اہم امتیازی خصوصیات
- Wide 2.0–5.5 V VDD covers battery and 5V rails in one part (بمقابلہPIC16F628-04I/SS)
- Programmable on-chip VREF for comparator threshold (بمقابلہPIC16LF627-04I/SS)
- Internal 4 MHz calibrated oscillator eliminates external crystal (بمقابلہPIC16F88-I/SS)
- 25 mA I/O source/sink directly drives LEDs and small relays (بمقابلہPIC16F88-I/SS)
ڈیزائن نوٹس
Place a 0.1 µF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14), and add a bulk 10 µF electrolytic or tantalum on the same rail. The PIC16LF628-04I/SS draws up to ~15 mA active at 4 MHz/5 V, but Brown-out Detect reset transients can momentarily spike higher; the bulk cap stabilizes VDD during inrush. Estimated: at 4 MHz / 3.3 V active current is roughly 3 mA, dropping below 1 µA in sleep with WDT disabled.
For SSOP-20 layout, use a 0.65 mm pitch land pattern with 0.40 mm wide pads and a 0.30 mm solder mask opening per IPC-7351 nominal. Route traces on adjacent layers perpendicular to break coupling on the parallel PORTB pins. Add a ground pour on the bottom layer stitched with vias under the SSOP thermal pad area to provide a low-impedance return for the I/O sink currents.
Do not leave unused I/O pins floating — configure them as outputs low or enable the internal weak pull-ups via the WPUEN/WPUB registers. Floating inputs can inject noise into the comparator module and increase sleep current. The MCLR pin (RA5/MCLR) must be tied to VDD through a 10 kΩ pull-up unless ICSP is in use; leaving MCLR floating causes intermittent resets. When using LVP (Low-Voltage Programming) via RB4/PGM, ensure RB4 is not pulled low during reset or the MCU enters programming mode unexpectedly.
Keep the analog comparator input pins (RA0–RA3) physically short and away from digital switching traces; route them on a layer adjacent to the ground plane only. If using the internal VREF as a comparator reference, place a 0.1 µF bypass on the VREF node (RA2) to suppress digital switching noise. When using the USART at high baud (>57.6 k), add a small series resistor (22–33 Ω) at the RX pin to dampen ringing from cable stubs or opto-isolator capacitance.
تعمیل کی معلومات
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified — for under-hood or safety-critical automotive applications use PIC16F628-E/SO automotive grade or an AEC-Q100-qualified PIC16F variant. REACH compliant per Microchip material declaration.
