PIC16C56A-20E/SO - 8-bit OTP MCU, 1.5KB, 20MHz, SOIC-18 | Microchip
MPN: PIC16C56A-20E/SO ✓ فعالPIC16C56A-20E/SO جائزہ
An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and peripherals such as I/O ports and timers. PIC16C5X devices are OTP (One-Time-Programmable) EPROM-based MCUs designed for cost-sensitive embedded applications. Within the broader semiconductor taxonomy, the PIC16C56A belongs to the hierarchy MCU -> microcontroller -> embedded processor -> semiconductor IC, and uses the classic PIC RISC architecture with 12-bit-wide instructions for approximately 2:1 code density versus typical 8-bit CISC cores.
Key specifications include 1.5 KB of OTP program memory (1K x 12), 25 bytes of RAM, 12 digital I/O pins, two 8-bit timers, an instruction cycle time of 200 ns at 20 MHz, and a wide 3.0 V to 5.5 V operating voltage range. The 'E' suffix designates the extended industrial temperature grade (-40C to +125C). The SOIC-18 surface-mount package simplifies board assembly and reflow soldering versus the original PDIP variants.
Architecturally, the PIC16C56A uses a Harvard-style RISC core with a 2-stage pipeline, 33 single-word/single-cycle instructions, and a hardware stack. It features a watchdog timer, power-on reset, brown-out detection (variant-dependent), and a low-power SLEEP mode. The 12-bit instruction word and 8-bit data path produce compact code density while sustaining deterministic interrupt latency for real-time control.
Typical applications include appliance control, simple sensor interfaces, LED driving logic, low-cost consumer electronics, hobbyist projects, and industrial logic replacement where small, deterministic, OTP-programmed MCUs are appropriate. The SOIC-18 package also supports high-volume SMT production lines.
When designing with this device, note that OTP memory cannot be re-programmed in-circuit - select a Flash-based PIC16F equivalent (e.g., PIC16F54) for development cycles that require firmware revision. Decoupling VDD/VSS with a 100 nF ceramic capacitor adjacent to the IC is essential; place MCLR pull-ups and oscillator components to minimize noise-induced resets.
This page consolidates distributor pricing across LCSC, Mouser and Hotenda, real-time cross-reference alternatives from Microchip's same-family PIC16C5X lineup, and practical design considerations beyond what is summarized in the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل PIC16C56A-20E/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 PIC16C56A-20E/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Operating Temperature, Timers, Mounting Type, Program Memory Size.
PIC16C56A-20/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C56A-20E/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C56AT-20E/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C56A-04E/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C56A-04E/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F54-I/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C56A-20E/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Type | 8-bit Microcontroller (MCU) |
| Series | PIC 16C |
| Core Architecture | PIC RISC (Harvard, 12-bit instruction word) |
| Program Memory Size | 1.5 KB (1K x 12) OTP EPROM |
| RAM Size | 25 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 20 MHz |
| Instruction Cycle Time | 200 ns |
| آپریٹنگ سپلائی وولٹیج | 3.0 V to 5.5 V |
| Number of I/O Pins | 12 |
| Number of Timers | 2 x 8-bit |
| ڈیٹا بس چوڑائی | 8 bit |
| پیکیج | 18-SOIC (7.50 mm width, 0.295") |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت | -40C to +125C (Extended 'E' grade) |
| RoHS اسٹیٹس | Compliant |
| Peripherals | Watchdog Timer, Power-On Reset, SLEEP mode |
PIC16C56A-20E/SO پن کنفیگریشن
| پن 1 | RA0 — Bidirectional I/O port A bit 0 |
| پن 2 | RA1 — Bidirectional I/O port A bit 1 |
| پن 3 | RA2 — Bidirectional I/O port A bit 2 |
| پن 4 | RA3 — Bidirectional I/O port A bit 3 |
| پن 5 | RA4/RTCC — I/O port A bit 4 / RTCC timer input (open-drain) |
| پن 6 | RB0/INT — I/O port B bit 0 / external interrupt |
| پن 7 | RB1 — Bidirectional I/O port B bit 1 |
| پن 8 | RB2 — Bidirectional I/O port B bit 2 |
| پن 9 | RB3 — Bidirectional I/O port B bit 3 |
| پن 10 | RB4 — Bidirectional I/O port B bit 4 |
| پن 11 | RB5 — Bidirectional I/O port B bit 5 |
| پن 12 | RB6 — Bidirectional I/O port B bit 6 |
| پن 13 | RB7 — Bidirectional I/O port B bit 7 |
| پن 14 | VSS — Ground reference |
| پن 15 | VDD — Positive supply voltage (3.0-5.5 V) |
| پن 16 | OSC2 — Oscillator output (crystal/RC) |
| پن 17 | OSC1 — Oscillator input (crystal/RC/external clock) |
| پن 18 | MCLR — Master clear (reset, active low) |
عام استعمالات
PIC16C56A-20E/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Appliance Control Logic, LED Display and Lighting Drivers, Low-Cost Consumer Electronics, Industrial Sensor Interface, Automotive Interior Modules, Hobby and Educational Projects.
Appliance Control Logic
The PIC16C56A-20E/SO fits appliance control logic (washing machines, microwave ovens, dishwashers) thanks to its extended -40C to +125C temperature range, 12 GPIO for relays and buttons, and OTP EPROM that locks firmware permanently after validation. The 20 MHz clock and 200 ns instruction cycle handle timing-sensitive control loops such as PWM motor drive, debounced keypad polling, and sensor sampling. Designers benefit from Microchip's mature PIC16C5X toolchain and the SOIC-18 package's suitability for high-volume reflow assembly. Total system cost stays low because the integrated watchdog timer, two 8-bit timers, and POR eliminate external supervisor ICs.
تجویز کردہ
LED Display and Lighting Drivers
The PIC16C56A-20E/SO drives LED displays and decorative lighting fixtures by bit-banging multiplexed outputs across its 12 GPIO. The 200 ns instruction cycle at 20 MHz allows refresh rates well above the human flicker-fusion threshold (typically 60-100 Hz even for 8-digit 7-segment displays). The 3.0-5.5 V supply matches standard LED driver rails, while the extended temperature range supports outdoor fixtures. Because the firmware is locked into OTP, factory-programmed lighting animations cannot be pirated or field-modified - a security advantage for commercial lighting products.
تجویز کردہ
Low-Cost Consumer Electronics
The PIC16C56A-20E/SO suits low-cost consumer electronics such as remote controls, simple toys, kitchen timers, and novelty gadgets where per-unit cost and deterministic behavior dominate design priorities. The 1.5 KB OTP is sufficient for compact state-machine firmware, while the 25 bytes RAM accommodates small look-up tables and stack depth for nested interrupts. Consumer products benefit from the SOIC-18 SMT package for automated assembly and from Microchip's stable long-term silicon supply.
تجویز کردہ
Industrial Sensor Interface
The PIC16C56A-20E/SO interfaces industrial sensors (limit switches, Hall sensors, simple thermistor bridges) by polling digital inputs and producing relay or transistor-driver outputs. The 12 GPIO handle 4-8 sensor inputs plus output channels, and the two 8-bit timers enable debounce, time-of-flight, and PWM output for proportional control. The -40C to +125C extended temperature meets IEC industrial environmental requirements. The OTP memory ensures the firmware cannot be field-modified - critical for safety-certified industrial installations.
تجویز کردہ
Automotive Interior Modules
The PIC16C56A-20E/SO can be used in non-safety automotive interior modules such as ambient lighting controllers, HVAC mode switches, seat-position memory buttons, and accessory multiplexers. The extended -40C to +125C temperature range covers cabin environments, and the 12 GPIO accommodate multiple switch inputs and PWM LED outputs. Note that safety-critical automotive systems require AEC-Q100 qualification - for those use cases, select PIC16F57 or PIC16F722 with proper automotive-grade screening rather than this industrial-grade part.
تجویز کردہ
Hobby and Educational Projects
The PIC16C56A-20E/SO works well for hobbyist and educational projects that need an inexpensive, deterministic 8-bit MCU for learning embedded C, assembly, or basic robotics. The 20 MHz clock allows visible LED blinking rates and motor PWM, while the 12 GPIO suffice for line-follower robots, simple alarm systems, and traffic-light simulators. Educators value the locked OTP firmware - students cannot overwrite a working program, but they can swap chips easily. The SOIC-18 footprint fits standard 18-pin breakout boards and breadboard adapters.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C56A-20E/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C56A-20/SO | PIC16C56A-20E/P | PIC16C56AT-20E/SO | PIC16C56A-04E/P | PIC16F54-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (7.50 mm) | 18-SOIC - same | 18-PDIP - through-hole | 18-SOIC - same | 18-PDIP - through-hole | 18-SOIC - same |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 4 MHz (-80%) | 20 MHz |
| Program Memory | 1.5 KB OTP EPROM | 1.5 KB OTP EPROM | 1.5 KB OTP EPROM | 1.5 KB OTP EPROM | 1.5 KB OTP EPROM | 1 KB Flash (re-programmable) |
| RAM Size | 25 bytes | 25 bytes | 25 bytes | 25 bytes | 25 bytes | 25 bytes |
| Operating Temperature | -40C to +125C (Extended) | 0C to +70C (Commercial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Memory Type | OTP EPROM (one-time programmable) | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (re-programmable) |
| Approx. Unit Price (qty 100, USD) | 1.30 | 1.10-1.20 | 1.40-1.55 | 1.30-1.40 | 1.20-1.30 | 1.10-1.30 |
اہم امتیازی خصوصیات
- Extended industrial temperature range (-40C to +125C) (بمقابلہPIC16C56A-20/SO)
- Modern Flash reprogrammability with same footprint (بمقابلہPIC16F54-I/SO)
- Lower-cost OTP for fixed-firmware high-volume builds (بمقابلہPIC16C56A-04E/P)
ڈیزائن نوٹس
Place a 100 nF ceramic decoupling capacitor as close as possible between VDD (pin 15) and VSS (pin 14) to suppress high-frequency switching noise from the internal oscillator. For multi-rail boards, add a 10 uF bulk tantalum or aluminum capacitor within 25 mm of the supply pin. The PIC16C56A-20E/SO draws approximately 2-5 mA active current at 20 MHz and <1 uA in SLEEP mode; if battery life is critical, gate the supply with a low-leakage load switch.
The 18-SOIC package (0.295" body width, 1.27 mm pitch) is compatible with standard SOIC-18 land patterns. Keep oscillator traces short (<20 mm) and route them away from switching signals to avoid injection of noise into the clock input. The MCLR pin (pin 18) requires a 10-50 kohm pull-up to VDD for reliable operation; do not leave it floating. For high-noise environments, add a 100 nF cap from MCLR to VSS to filter out reset glitches.
The OTP EPROM cannot be re-programmed in-circuit - any firmware bug or update requires a new chip. For development, use a Flash-based PIC16F54 or PIC16F57 in the same 18-SOIC footprint, then migrate to PIC16C56A-20E/SO for production. Do not exceed the maximum clock frequency of 20 MHz; the '04' grade variant operates up to 4 MHz and must not be clocked higher. Note that the RA4/RTCC pin has an open-drain output structure - external pull-up resistor required for high-level driving.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. The SOIC-18 package is lead-free and halogen-free. Not AEC-Q100 qualified - the part is rated for industrial/commercial use but not automotive safety-critical applications.
