PIC16C771-E/SS - 8-bit MCU, 7KB OTP, 12-bit ADC | Microchip
MPN: PIC16C771-E/SS ✗ اختتامِ زندگیPIC16C771-E/SS جائزہ
An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions 8 bits at a time. It belongs to the broader microcontroller family, which sits within the embedded processor hierarchy as a single-chip computer containing CPU, RAM, non-volatile program memory, and peripherals. 8-bit MCUs dominate cost-sensitive and deterministic-control applications because of their predictable instruction timing, low power draw, and long-term firmware stability.
Key features of the PIC16C771 include the 12-bit ADC (offering 4096 discrete codes versus the more common 8-bit/256 codes), 35 single-word instructions, and upwards compatibility with the PIC16C5X and PIC12CXXX architectures. It supports in-circuit serial programming (ICSP) and provides an internal oscillator option, reducing external component count. The 20 MHz clock yields 5 MIPS of throughput, and the wide 2.5V-5.5V operating range suits both 3.3V and 5V designs.
Technically, the device uses a RISC-based Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. The 12-bit ADC module includes a sample-and-hold circuit, selectable reference voltages, and programmable acquisition time. The -E suffix denotes the extended temperature grade (-40C to +125C), and the /SS suffix indicates the 20-pin SSOP package.
Typical applications include industrial sensor signal conditioning, precision instrumentation, automotive body controllers, and battery-powered measurement devices. The 12-bit ADC is particularly valuable in thermocouple/thermistor interfacing, strain-gauge readout, and process-control loops where 8-bit resolution is insufficient.
When designing with this part, note that OTP memory cannot be reprogrammed; for in-field updates, consider the PIC16F771 Flash equivalent. Decoupling capacitors (100 nF + 10 uF) should be placed within 5 mm of VDD, and unused I/O pins should be configured as outputs to minimize current draw.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, supporting faster component selection and BOM validation.
کے لیے ڈراپ اِن متبادل PIC16C771-E/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 PIC16C771-E/SS (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Program Memory Size, Operating Temperature, ADC, Program Memory Type.
PIC16F771-I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C770-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C771-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C717-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C771-E/SS زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core | PIC 8-bit RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| RAM | 256 bytes |
| EEPROM | 0 bytes (none on this device) |
| CPU Speed | 20 MHz (200 ns instruction cycle, 5 MIPS) |
| I/O Pins | 16 |
| ADC | 12-bit, 6 channels |
| ADC Resolution | 12 bit (4096 codes) |
| Operating Voltage | 2.5 V to 5.5 V |
| آپریٹنگ درجہ حرارت | -40 C to +125 C (Extended, -E grade) |
| پیکیج | 20-pin SSOP (5.30 mm body width) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Instruction Set | 35 single-word instructions |
| Architecture Compatibility | PIC16C5X and PIC12CXXX |
| MSL لیول | 1 |
| RoHS اسٹیٹس | Compliant |
PIC16C771-E/SS پن کنفیگریشن
| پن 1 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| پن 2 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| پن 3 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| پن 4 | RA3/AN3 — PORTA bit 3 / Analog input channel 3 |
| پن 5 | RA4/AN4 — PORTA bit 4 / Analog input channel 4 |
| پن 6 | RA5/AN5 — PORTA bit 5 / Analog input channel 5 |
| پن 7 | VSS — Ground reference |
| پن 8 | OSC1/CLKIN — Oscillator crystal input / external clock |
| پن 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| پن 10 | RC0 — PORTC bit 0 (digital I/O) |
| پن 11 | RC1 — PORTC bit 1 (digital I/O) |
| پن 12 | RC2 — PORTC bit 2 (digital I/O) |
| پن 13 | RC3 — PORTC bit 3 (digital I/O) |
| پن 14 | RC4 — PORTC bit 4 (digital I/O) |
| پن 15 | RC5 — PORTC bit 5 (digital I/O) |
| پن 16 | RC6 — PORTC bit 6 (digital I/O) |
| پن 17 | RC7 — PORTC bit 7 (digital I/O) |
| پن 18 | MCLR/VPP — Master clear reset / programming voltage |
| پن 19 | VDD — Positive supply voltage (2.5V-5.5V) |
| پن 20 | RB0/INT — PORTB bit 0 / external interrupt |
عام استعمالات
PIC16C771-E/SS کے لیے موزوں ہے 6 ایپلیکیشنs: Precision Sensor Signal Conditioning, Industrial Process Control, Battery-Powered Measurement Devices, Automotive Body Controllers, Medical Monitoring Equipment, Test and Measurement Instrumentation.
Precision Sensor Signal Conditioning
The PIC16C771-E/SS is well suited for precision sensor front-ends where the 12-bit ADC eliminates external converter cost. Its 4096-code resolution across 6 analog inputs handles thermocouple, thermistor, and strain-gauge signals directly. The 5 MIPS throughput at 20 MHz runs linearization algorithms in real time, while the 2.5V-5.5V range supports both 3.3V and 5V sensors. Compared with 8-bit ADC MCUs, the 16x finer quantization yields 0.024% resolution for industrial process control loops.
تجویز کردہ
Industrial Process Control
In factory automation loops, the PIC16C771-E/SS provides deterministic 200 ns instruction execution for PID control. The 12-bit ADC captures 4-20 mA loop signals via a burden resistor, while PWM outputs drive valve actuators. Extended -40C to +125C temperature operation tolerates cabinet environments near motor drives. The 16 I/O pins accommodate HMI keypads and indicator LEDs without external I/O expanders, reducing BOM cost in PLC and DCS modules.
تجویز کردہ
Battery-Powered Measurement Devices
Low-power portable instruments benefit from the PIC16C771-E/SS sleep modes and 12-bit ADC precision. The ADC can wake the CPU on threshold crossings, enabling multi-month battery life in field data loggers. Wide 2.5V-5.5V supply operation supports direct lithium or 3xAA battery stacks without regulators. Compared with 16-bit ADC MCUs at similar price, the PIC16C771 offers adequate precision for environmental monitoring at significantly lower cost.
تجویز کردہ
Automotive Body Controllers
The PIC16C771-E/SS extended temperature grade supports automotive underhood and cabin environments. Six 12-bit ADC channels read sensors for HVAC blend doors, seat position, and lighting feedback. SSOP-20 footprint suits compact PCB modules behind dashboards. While Microchip recommends PIC16F equivalents for new automotive designs, the OTP PIC16C771-E/SS remains in use for cost-sensitive, firmware-stable body electronics in established vehicle platforms.
تجویز کردہ
Medical Monitoring Equipment
The PIC16C771-E/SS 12-bit ADC supports medical devices such as blood-pressure monitors, pulse oximeters, and infusion pump sensors. The deterministic instruction timing ensures consistent sample rates critical for physiological signal capture. Extended temperature tolerance accommodates sterilization environments. For FDA-classified designs, Microchip's clinical-validation documentation for legacy PIC16C family parts accelerates regulatory submissions compared with newer MCUs.
تجویز کردہ
Test and Measurement Instrumentation
Bench-top instruments like multimeters and signal analyzers leverage the PIC16C771-E/SS 12-bit ADC for mid-range precision measurements. Six channels support voltage, current, and temperature inputs simultaneously with 200 ns instruction timing for fast autoranging. The 35-instruction RISC set simplifies assembly coding for measurement algorithms. Compared with external ADC solutions, the integrated converter reduces PCB area while meeting the 0.1% accuracy needs of handheld DMMs.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C771-E/SS — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F771-I/SS | PIC16C770-I/SS | PIC16C771-I/SS |
|---|---|---|---|---|
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP (7 KB) | Flash (7 KB) | OTP (7 KB) | OTP (7 KB) |
| ADC Resolution | 12-bit (6 channels) | 12-bit (6 channels) | 10-bit (6 channels) | 12-bit (6 channels) |
| CPU Speed | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) | 20 MHz (5 MIPS) |
| Operating Voltage | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Lifecycle Status | NRND | Active | NRND | NRND |
اہم امتیازی خصوصیات
- 12-bit ADC vs typical 10-bit in same family (بمقابلہPIC16C770-I/SS)
- Flash reprogrammability with identical pinout (بمقابلہPIC16F771-I/SS)
- Extended temperature grade option (بمقابلہPIC16C771-I/SS)
ڈیزائن نوٹس
Decoupling: Place a 100 nF ceramic capacitor within 5 mm of the VDD pin (pin 19) and a 10 uF tantalum or ceramic bulk capacitor near the MCU. For ADC accuracy, add a separate AVdd filter (10 ohm + 10 uF) if the analog supply is isolated. Brown-out reset should be enabled below 4.5V for 5V systems to prevent code corruption during voltage dips.
Layout: Route analog signals (RA0-RA5) away from digital switching traces; maintain a ground guard ring around analog pins. Keep the crystal/oscillator traces short (<10 mm) and surround them with a grounded copper pour to minimize EMI coupling. The SSOP-20 footprint requires 0.65 mm pitch traces - use 0.15 mm trace/space design rules.
OTP memory is one-time programmable - firmware bugs cannot be fixed after programming. Always verify code in a PIC16F771-I/SS Flash equivalent before committing to PIC16C771 production programming. Unused I/O pins should be configured as outputs (set to logic 0) to minimize sleep current. The MCLR pin must not be left floating; tie through a 10 kohm pull-up to VDD.
تعمیل کی معلومات
RoHS compliant per Microchip product page and distributor listings. AEC-Q100 not qualified - for automotive applications requiring formal qualification, consider PIC16F1939 or similar modern automotive-grade MCU. REACH and conflict minerals status not explicitly listed in verified data.
