PIC16LC771/SS - 8-Bit 20MHz MCU 7KB OTP | Microchip
Teilenummer: PIC16LC771/SS ✗ Abgekündigt| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.09 | $2,09 |
| 10 | $1.92 | $19,20 |
| 100 | $1.78 | $178,00 |
| 500 | $1.62 | $810,00 |
| 1.000 | $1.55 | $1.550,00 |
PIC16LC771/SS Übersicht
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (ROM/Flash/OTP), working RAM, and peripheral I/O on one die. Within the broader semiconductor taxonomy, an MCU sits inside the microcontroller -> embedded controller -> digital IC -> integrated circuit hierarchy. The PIC16LC771 belongs to Microchip's mid-range PIC16 family, which pioneered the Harvard RISC architecture, separate program and data buses, and OTP variants for low-volume or secure production runs where code masking is unnecessary.
Key features include 7 KB (4K x 14) of OTP program memory, 256 bytes of data RAM, a hardware multiplier-free 8-bit ALU with single-cycle operations, an internal oscillator option, a 10-bit ADC (subject to datasheet confirmation), PWM/capture/compare peripherals, and an instruction set optimized for C and assembly code generation. The 20 MHz clock delivers up to 5 MIPS of throughput.
Typical applications include low-power industrial sensor nodes, white-goods control boards, simple motor-control loops, metering front ends, and consumer appliances where cost per MCU and ease of programming outweigh the need for advanced peripherals. The SSOP-20 footprint also makes it attractive for retrofit designs originally built around legacy PIC16C7x silicon.
When designing with the PIC16LC771, verify the OTP programming flow against your programmer (PICkit, ICD, MPLAB REAL ICE) and confirm the available peripheral set against your BOM. OTP parts cannot be re-programmed in-circuit, so plan programming fixtures accordingly.
This page synthesizes distributor pricing, pin-to-pin compatible alternatives sourced from Microchip's own product family, and engineering notes not consolidated in the manufacturer datasheet itself, giving procurement and design engineers a single reference for evaluating the PIC16LC771/SS against current sourcing options.
Drop-in-Alternativen für PIC16LC771/SS – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16LC771/SS (gleiche Bauform und Footprint) – abweichend in ADC, Package, Program Memory Size, Mounting Type, Core Architecture.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16LC770T-I/SS
✅ Drop-In✓ Auf Lager
$2.58 / Stück
Datenblatt ansehen →PIC16LC717T-E/SS
✅ Drop-In✓ Auf Lager
$2.95 / Stück
Datenblatt ansehen →PIC16LC711T-04E/SS
✅ Drop-In✓ Auf Lager
$4.95 / Stück
Datenblatt ansehen →PIC16LC716T-04I/SS
✅ Drop-In✓ Auf Lager
$2.45 / Stück
Datenblatt ansehen →PIC16LC73BT-04I/SS
✅ Drop-In✓ Auf Lager
$4.55 / Stück
Datenblatt ansehen →PIC16LC715-04I/SS
✅ Drop-In✓ Auf Lager
$1.35 / Stück
Datenblatt ansehen →PIC16LC771/SS Grenzwerte & elektrische Eigenschaften
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Series | PIC PIC® 16C, PIC16LC7xx family |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| Data RAM | 256 bytes |
| Maximum CPU Frequency | 20 MHz |
| I/O Pins | 16 |
| Gehäuse | 20-pin SSOP (5.30 mm body) |
| Montageart | Surface Mount (Gull-Wing) |
| Temperature Grade | Commercial |
| Terminal Form | GULL WING |
| Package Code | SSOP |
| RoHS-Status | Compliant |
PIC16LC771/SS Pin-Konfiguration
| Pin 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0 — PORTA bit 0 / Analog channel 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / Analog channel 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / Analog channel 2 |
| Pin 5 | RA3/AN3/VREF — PORTA bit 3 / Analog channel 3 / Voltage reference |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer 0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / Analog channel 4 / SPI slave select |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKIN — Oscillator input / external clock |
| Pin 10 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer 1 oscillator output / Timer 1 clock |
| Pin 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer 1 oscillator input / CCP2 |
| Pin 13 | RC2/CCP1 — PORTC bit 2 / Capture Compare PWM 1 |
| Pin 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 17 | RC6/TX/CK — PORTC bit 6 / USART transmit / clock |
| Pin 18 | RC7/RX/DT — PORTC bit 7 / USART receive / data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
Typische Anwendungen
PIC16LC771/SS ist geeignet für 7 Anwendungs: Industrial Sensor Interface Board, White-Goods and Appliance Control, Metering and Energy Measurement, Low-Power IoT Edge Node, Consumer Remote Controls and HMI, Automotive Body Electronics (Legacy), Educational and Hobby Embedded Boards.
Industrial Sensor Interface Board
The PIC16LC771/SS fits industrial sensor interface boards that need a moderate code footprint, 16 GPIO lines, and proven PIC16 mid-range reliability. With 7 KB of OTP memory, the firmware can host a Modbus RTU slave, ADC scan loops, and digital filtering without external memory. The 20 MHz CPU delivers approximately 5 MIPS, which is sufficient for 100 Hz analog scan rates typical of process-control front ends. Compared to Flash MCUs in the same family, the OTP variant adds tamper-resistance because the program image cannot be electronically read back after locking, which suits metering and security-sensitive instrumentation. The SSOP-20 footprint keeps the BOM compact, and the part's commercial temperature grade is adequate for indoor cabinet-mounted designs.
Empfohlen
White-Goods and Appliance Control
The PIC16LC771/SS is well suited to washing machines, dishwashers, microwave ovens, and other white-goods that need deterministic 8-bit control with a fixed firmware image. Its 7 KB OTP memory holds user-interface state machines, timer interrupts, and motor-start profiles without the cost of Flash. The 16 I/O pins drive relay coils, LED indicators, keypads, and triac-fired loads directly through the digital ports. The 20 MHz core responds in microseconds to timer-tick events that protect motor windings and door interlocks, and the SSOP-20 package is small enough to fit behind a control-panel PCB. For high-volume appliance lines, OTP programming cost per unit is much lower than Flash programming.
Empfohlen
Metering and Energy Measurement
The PIC16LC771/SS supports single-phase energy metering and low-power metering front ends where its 7 KB OTP image locks in calibration coefficients that cannot be tampered with after programming. The PIC16 mid-range core can sample voltage and current waveforms via the on-chip ADC and run the multiplying math to compute RMS power in real time at line frequency. OTP security is critical here because regulatory metering bodies (IEC 62053) require code protection, and the OTP-once-programmed nature of the LC variant is an engineering advantage over Flash. The 16 GPIO lines accommodate LED pulse outputs, calibration switches, and isolated serial links to the meter's host MCU.
Empfohlen
Low-Power IoT Edge Node
The PIC16LC771/SS can be deployed in low-power IoT edge nodes where modest compute, low cost, and the PIC16's nanoWatt sleep modes are acceptable trade-offs versus a 32-bit Cortex-M device. Its 7 KB OTP image is small but enough for sensor read, threshold-based decisioning, and a UART/SPI link to a parent radio module. The SSOP-20 package fits coin-cell-powered enclosures and the OTP memory protects the node firmware against field cloning. Engineers should note the commercial temperature grade and select the -I variant for outdoor installations. The PIC16 mid-range architecture has a long-lived tool chain (MPLAB X, XC8) that keeps firmware support costs low.
Empfohlen
Consumer Remote Controls and HMI
The PIC16LC771/SS handles remote-control and human-machine-interface (HMI) consumer products that scan key matrices, drive LCD or seven-segment indicators, and emit IR or RF command frames. Its 16 GPIO pins are sufficient for 4x4 keypads plus indicator LEDs without external I/O expanders. The 7 KB OTP memory holds keypad-debounce state machines, IR protocol tables (RC5, NEC), and indicator blink patterns. The 20 MHz CPU keeps latency well under the 50 ms human-perception threshold for key feedback, and the SSOP-20 package is small enough for handheld enclosures.
Empfohlen
Automotive Body Electronics (Legacy)
The PIC16LC771/SS was deployed in legacy automotive body-electronics modules (window lifters, mirror adjusters, interior lighting controllers) that did not require AEC-Q100 Grade-0 operation. The 16 GPIO lines drive relay coils and H-bridge signals, while the 7 KB OTP memory holds the actuation logic and diagnostic state machines. OTP once-programmed security prevents unauthorized firmware swaps in aftermarket repair scenarios. The commercial temperature grade limits its use to cabin-only applications; for under-hood designs, engineers should select an AEC-Q100-qualified MCU such as the PIC16F1xx family.
Empfohlen
Educational and Hobby Embedded Boards
The PIC16LC771/SS is used in educational embedded-controller labs and hobbyist development boards where its 20-pin SSOP footprint, 16 GPIO, and 7 KB OTP memory give students enough resources to learn the PIC16 mid-range architecture without the cost of higher-end MCUs. The PICkit programmer line and MPLAB X IDE support the LC family directly, so students can build, simulate, and program with free tools. Because OTP parts cannot be re-programmed, lab exercises use socketed boards or stepping-stone firmware images. This use case is appropriate for the commercial temperature grade since educational environments are climate-controlled.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LC771/SS – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LC770T-I/SS | PIC16LC717T-E/SS | PIC16LC711T-04E/SS | PIC16LC716T-04I/SS | PIC16LC73BT-04I/SS |
|---|---|---|---|---|---|---|
| Package | SSOP-20 (5.30 mm) | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 7 KB (4K x 14) OTP | 4 KB OTP | 4 KB OTP | 1.75 KB OTP | 8 KB OTP | 4 KB OTP |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz |
| Data RAM | 256 bytes | 256 bytes | 256 bytes | 68 bytes | 128 bytes | 192 bytes |
| I/O Pins | 16 | 16 | 16 | 13 | 13 | 22 |
| Memory Type | OTP | OTP | OTP | OTP | OTP | OTP |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Wichtigste Unterscheidungsmerkmale
- Largest OTP program memory in the SSOP-20 PIC16LC7x lineup (vs. PIC16LC711T-04E/SS)
- Higher CPU frequency than the PIC16LC71x/LC715/LC716 family (vs. PIC16LC716T-04I/SS)
- More I/O pins than the PIC16LC71x/LC711 baseline (vs. PIC16LC711T-04E/SS)
Designhinweise
The PIC16LC771/SS uses One-Time Programmable (OTP) memory, which cannot be electrically erased once programmed. Plan a programming fixture and pre-production validation flow before committing firmware, because every programmed unit is final. If in-circuit reprogramming is required, choose a Flash-based sibling from the PIC16F family that shares the SSOP-20 footprint, or program the OTP part via a socketed adapter on the production line.
Place decoupling capacitors as close as possible to the VDD (pin 20) and VSS (pins 8, 19) pins of the SSOP-20 package. Use a 100 nF ceramic capacitor on each VDD pin pair to suppress switching transients from the CPU and I/O transitions. The PIC16 mid-range core draws sharp current spikes on instruction fetches; insufficient bulk decoupling can cause spurious resets from the brown-out detector. A 10 uF bulk capacitor near the regulator output completes the standard PIC16 power-decoupling layout.
Keep the OSC1/OSC2 oscillator traces short and routed over a continuous ground plane to reduce jitter on the system clock. For crystal operation, place the load capacitors (typically 15-33 pF) within 5 mm of the OSC pins. For external clock injection on OSC1, leave OSC2 unconnected per the PIC16 mid-range reference manual. Avoid routing high-frequency signals (USART, SPI, PWM) adjacent to the oscillator traces to prevent coupling into the system clock.
Estimated: at 20 MHz CPU frequency and 5 V supply, the PIC16LC771/SS typical active current is approximately 10-15 mA, dissipating roughly 50-75 mW. Under those conditions the SSOP-20 thermal resistance (theta_JA around 100 C/W for a small-outline SSOP) results in a junction temperature rise of approximately 5-7 C above ambient. This is well within the commercial 0-70 C range; for industrial -40 to +85 C operation, select the PIC16LC771-I/SS grade and verify headroom against the chosen ambient extremes.
Compliance-Informationen
RoHS and lead-free compliance per the verified Microchip and Hotenda listings. AEC-Q100 not qualified - choose an AEC-Q100 part for automotive designs. Halogen-free status not explicitly stated in the verified data.
