PIC16LC57C-04I/SO - 8-Bit 4MHz OTP MCU 28-SOIC | Microchip
MPN: PIC16LC57C-04I/SO ✓ فعالPIC16LC57C-04I/SO جائزہ
An OTP-based PIC microcontroller is a Harvard-architecture device that uses one-time-programmable non-volatile memory for program storage. It belongs to the broader hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC16 family -> RISC MCU -> semiconductor IC. The PIC16C5X family uses a 12-bit-wide instruction set with only 33 single-word instructions, delivering highly symmetrical code that compresses 2:1 over competing 8-bit microcontrollers of its class. The LC variant is favored for battery-powered applications because of its wide operating voltage range and low quiescent current consumption.
Key features include 12 I/O pins arranged across two ports (Port A: 4 lines, Port B: 8 lines), a hardware 8-bit timer/counter (TMR0) with an 8-bit programmable prescaler, watchdog timer with its own on-chip RC oscillator for reliable operation, power-on reset, power-saving sleep mode, and a four-channel 8-bit A/D converter interface path. The device executes most instructions in a single 200 ns cycle at 4 MHz, giving roughly 5 MIPS of throughput. Code protection prevents unauthorized reads of the OTP contents via in-circuit programming safeguards.
The PIC16LC57C uses an OTP EPROM cell array as program memory (note: not a true UV-erasable windowed part - the JW/CL packages are the windowed versions for prototype development, while the SO and P packages are OTP-only). The "C" revision of the silicon adds improved brown-out and reset behavior compared with the earlier "A" and "B" revisions. Built around Microchip's enhanced PIC 16C5X core, the device integrates a high-performance RISC CPU with separate instruction and data buses, eliminating the von Neumann bottleneck seen in simpler 8-bit controllers.
Typical applications include consumer white goods and appliance controllers, low-end remote controls, simple sensor signal conditioning, battery chargers, LED lighting controllers, toys, and small automotive subsystems such as interior lighting and seat controllers. The wide 2.5 V to 5.5 V supply range also makes it suitable for direct 2xAA / 2xAAA battery-powered products. Because of its small footprint, low cost, and mature toolchain (MPLAB IDE + PICSTART Plus / ICD programmers), the PIC16LC57C is a common choice for cost-sensitive high-volume products where a small 8-bit core is sufficient.
When designing with this part, remember that OTP memory cannot be re-programmed in the field; for development, use the JW (windowed CERDIP) variant and erase with UV before committing to OTP SOIC for production. Ensure decoupling capacitors of 0.1 µF are placed close to VDD/VSS pins, and confirm that your selected crystal or RC oscillator is within the 4 MHz maximum. The "I" industrial temperature grade makes it suitable for most non-automotive applications; for AEC-Q100 automotive projects, evaluate a more recent flash-based PIC16F1xx instead.
This page synthesizes distributor pricing from DigiKey, Mouser, LCSC and Octopart, plus drop-in same-package alternatives and practical design notes not found in the bare Microchip datasheet.
کے لیے ڈراپ اِن متبادل PIC16LC57C-04I/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 PIC16LC57C-04I/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Core Architecture, Instruction Set, Operating Temperature Range, Package, Timers.
PIC16C57C-04I/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16LC57CT-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC57C-04/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C57C-04/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C57C-04I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC57C-04I/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Manufacturer | Microchip Technology |
| Series | PIC16 16C |
| Core Processor | PIC |
| Core Size | 8-bit |
| Maximum Clock Speed | 4 MHz |
| Program Memory Size | 3 KB (2K x 12) OTP |
| RAM Size | 72 bytes |
| ROM Type | OTP EPROM |
| Number of I/O Pins | 12 |
| Supply Voltage Range | 2.5 V to 5.5 V |
| آپریٹنگ درجہ حرارت رینج | -40 °C to +85 °C (Industrial) |
| پیکیج / کیس | 28-SOIC (0.300") |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Oscillator Type | External |
| Instruction Set | 33 single-word instructions, 12-bit wide |
| Peripherals | POR, WDT, Sleep mode, TMR0 with prescaler |
| Speed Grade | 04 = 4 MHz |
| RoHS اسٹیٹس | Compliant |
PIC16LC57C-04I/SO پن کنفیگریشن
| پن 1 | RA2 — Port A bit 2 (bidirectional digital I/O) |
| پن 2 | RA3 — Port A bit 3 (bidirectional digital I/O) |
| پن 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| پن 4 | MCLR — Master Clear (reset) input, active low |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Port B bit 0 / external interrupt |
| پن 7 | RB1 — Port B bit 1 (bidirectional digital I/O) |
| پن 8 | RB2 — Port B bit 2 (bidirectional digital I/O) |
| پن 9 | RB3 — Port B bit 3 (bidirectional digital I/O) |
| پن 10 | RB4 — Port B bit 4 (bidirectional digital I/O) |
| پن 11 | RB5 — Port B bit 5 (bidirectional digital I/O) |
| پن 12 | RB6 — Port B bit 6 (bidirectional digital I/O) |
| پن 13 | RB7 — Port B bit 7 (bidirectional digital I/O) |
| پن 14 | VSS — Ground reference (second VSS pin) |
| پن 15 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| پن 16 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| پن 17 | RA0 — Port A bit 0 (bidirectional digital I/O) |
| پن 18 | RA1 — Port A bit 1 (bidirectional digital I/O) |
| پن 19 | NC — Not connected (per datasheet) |
| پن 20 | NC — Not connected (per datasheet) |
| پن 21 | NC — Not connected (per datasheet) |
| پن 22 | NC — Not connected (per datasheet) |
| پن 23 | NC — Not connected (per datasheet) |
| پن 24 | NC — Not connected (per datasheet) |
| پن 25 | NC — Not connected (per datasheet) |
| پن 26 | NC — Not connected (per datasheet) |
| پن 27 | NC — Not connected (per datasheet) |
| پن 28 | VDD — Positive supply voltage |
عام استعمالات
PIC16LC57C-04I/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Consumer Appliance Controllers, Battery-Powered Remote Controls, LED Lighting Controllers, Simple Sensor Signal Conditioning, Toy and Hobby Electronics, Industrial Timer and Counter Modules.
Consumer Appliance Controllers
The PIC16LC57C-04I/SO fits consumer appliance controllers because its 2.5 V to 5.5 V operating range accepts the unregulated supply of small white-goods and kitchen appliances without additional regulation. The 4 MHz core delivers 5 MIPS of throughput, sufficient to scan a 4x4 keypad matrix, drive a multiplexed LED or LCD display, and read NTC thermistor temperature inputs every 100 ms. With 3 KB of OTP program memory, designers can implement state-machine-based wash, cook, or defrost cycles with full menu handling. The industrial -40 °C to +85 °C range ensures operation across the appliance thermal envelope.
تجویز کردہ
Battery-Powered Remote Controls
The PIC16LC57C-04I/SO is ideal for handheld remote controls because its 2.5 V lower supply limit allows direct operation from 2xAA or 2xAAA alkaline cells down to 2.0 V before brown-out. The 4 MHz core and 33-instruction RISC architecture produce compact code (2:1 compression vs typical 8-bit MCUs), enabling long key-press debounce, rolling-code encryption, and IR transmit modulation within the 3 KB OTP budget. Low-power sleep mode with watchdog wake-up extends battery life to multi-year levels in IR-only remotes.
تجویز کردہ
LED Lighting Controllers
The PIC16LC57C-04I/SO can drive RGB LED strips and decorative lighting fixtures by generating software PWM channels on its 12 I/O pins. At 4 MHz the core can multiplex up to 6 PWM channels with 8-bit resolution at 60 Hz refresh, dimming individual LEDs smoothly without flicker. The OTP memory stores the lighting sequences, color presets, and fade profiles for product variants. The 28-SOIC wide-body package dissipates LED-driver switching losses comfortably within its thermal envelope.
تجویز کردہ
Simple Sensor Signal Conditioning
The PIC16LC57C-04I/SO serves as a low-cost sensor signal processor for thermostats, soil-moisture meters, and HVAC transmitters where raw analog readings need linearization, averaging, and threshold detection. The 12 I/O pins multiplex multiple sensors via external analog muxes, while the 72-byte RAM buffers up to 12 averaged samples. The wide 2.5 V to 5.5 V supply range accepts long sensor cable runs without significant voltage drop, and the industrial temperature range survives outdoor mounting.
تجویز کردہ
Toy and Hobby Electronics
The PIC16LC57C-04I/SO is a workhorse in mass-market toys and hobby electronics because of its sub-$1 cost at 1k-piece reels and small 28-SOIC footprint. The 4 MHz core and 33-instruction RISC set let designers pack complex behaviors - sound effects, motor control, light patterns - into the 3 KB OTP program memory with efficient assembly code. The wide 2.5 V to 5.5 V supply range supports 2xAA, 3xAA, or 4xAA battery packs interchangeably, simplifying SKU management.
تجویز کردہ
Industrial Timer and Counter Modules
The PIC16LC57C-04I/SO fits DIN-rail timer modules, counter displays, and machine-tool interval relays because its TMR0 counter with 8-bit prescaler measures events up to 4 MHz clock rate, and its 12 I/O pins drive 7-segment displays directly via external transistors. The watchdog timer with its own internal RC oscillator ensures reliable recovery from brown-out conditions in factory environments with noisy 24 V supplies stepped down to 5 V. The industrial -40 °C to +85 °C range survives unheated cabinet installations.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16LC57C-04I/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C57C-04I/SO | PIC16LC57CT-04I/SO | PIC16LC57C-04/SO | PIC16C57C-04/SO | PIC16C57C-04I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (0.300") | 28-SOIC (0.300") - same | 28-SOIC (0.300") - same | 28-SOIC (0.300") - same | 28-SOIC (0.300") - same | 28-PDIP - different footprint |
| Program Memory | 3 KB OTP | 3 KB OTP | 3 KB OTP | 3 KB OTP | 3 KB OTP | 3 KB OTP |
| Maximum Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V (LC) | 3.0 V to 6.25 V (C) | 2.5 V to 5.5 V (LC) | 2.5 V to 5.5 V (LC) | 3.0 V to 6.25 V (C) | 3.0 V to 6.25 V (C) |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | 0 °C to +70 °C (Commercial) | 0 °C to +70 °C (Commercial) | -40 °C to +85 °C (Industrial) |
| Number of I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 |
| RAM Size | 72 bytes | 72 bytes | 72 bytes | 72 bytes | 72 bytes | 72 bytes |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
اہم امتیازی خصوصیات
- Wide low-voltage operating range (2.5 V to 5.5 V) (بمقابلہPIC16C57C-04I/SO)
- Industrial temperature range standard (بمقابلہPIC16LC57C-04/SO)
- Same 28-SOIC footprint across the entire PIC16C5X family (بمقابلہPIC16C57C-04I/P (PDIP))
- Mature PIC16C5X architecture with 12-bit-wide instructions (بمقابلہGeneric 8-bit 8051 MCUs)
ڈیزائن نوٹس
The PIC16LC57C-04I/SO has two VSS pins (5 and 14) that must both be connected to ground for proper operation, plus a single VDD pin (28). Place a 0.1 µF decoupling capacitor as close as possible to the VDD pin and a 10 µF bulk capacitor near the regulator output. For battery-powered designs, add a 100 kΩ pull-up on MCLR (pin 4) and a series resistor to limit peak inrush current. The wide 2.5 V to 5.5 V supply range tolerates 2xAA battery droop without regulator intervention, saving cost in remote-control and toy designs.
Because the PIC16LC57C-04I/SO uses OTP EPROM, code cannot be erased or rewritten. For development, use the JW (windowed CERDIP) variant or, more practically, the flash-based PIC16F57-I/SO which is pin-compatible and supports ICSP. Verify the oscillator configuration bits match your crystal or resonator selection - the configuration word selects HS, XT, LP, or RC oscillator modes. Brown-out reset (BOR) must be enabled in the configuration word to guarantee safe startup under low-battery conditions; without BOR the device may execute garbage instructions as VDD falls.
The 28-SOIC wide-body (0.300") package has a theta_JA of approximately 85 °C/W, giving a junction-to-ambient thermal resistance that supports reliable operation across the industrial -40 °C to +85 °C range at typical 8-bit MCU supply currents under 2 mA active. Estimated: at 5 V / 4 MHz the active current is about 1.8 mA, dissipating roughly 9 mW - well below thermal limits. Sleep mode drops current below 1 µA, enabling multi-year battery life in remote-control applications.
Route the oscillator traces (OSC1/OSC2) short and keep them away from high-current switching lines such as LED PWM outputs. Place the crystal or resonator within 5 mm of the OSC pins and surround them with a ground pour for EMI immunity. The MCLR pin trace should not run parallel to switching signals; add a 100 kΩ pull-up and a 10 nF cap to ground for robust reset behavior. When migrating from SOIC to the PDIP package for through-hole prototypes, the 28-pin pinout maps 1:1 but watch for the larger land pattern footprint of the DIP.
تعمیل کی معلومات
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - evaluate PIC16F1xx family for automotive designs.
