PIC16F1508-I/SS - 20MHz 8-Bit MCU 7KB Flash XLP | Microchip
Teilenummer: PIC16F1508-I/SS ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.78 | $1,78 |
| 10 | $1.62 | $16,20 |
| 100 | $1.39 | $139,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $1.02 | $1.020,00 |
PIC16F1508-I/SS Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. Within the broader semiconductor hierarchy, an MCU sits under microcontrollers, which themselves are a sub-category of integrated circuits and embedded processors. The 8-bit class — to which the PIC16F1508 belongs — targets cost-sensitive, deterministic, low-power embedded applications where a 32-bit core would be over-specified. XLP technology is Microchip's branding for sub-uA sleep currents suitable for battery-powered IoT endpoints.
Key differentiating features include 49 instruction enhanced mid-range core, 16-level hardware stack with overflow/underflow reset, 4 channel 10-bit ADC, and Core Independent Peripherals (CIPs) that offload tasks like waveform generation and signal conditioning from the CPU. The 7 KB self-programmable Flash supports in-application programming via the ICSP interface. Two File Select Registers (FSRs) and direct/indirect/relative addressing modes simplify pointer-heavy C and assembly code.
The PIC16F1508 implements a Harvard architecture with separate program and data buses, predictable instruction timing (most instructions complete in one or two clock cycles), and deterministic interrupt latency that simplifies real-time firmware design. CIPs such as CLC, NCO, and PWM operate without CPU intervention, reducing firmware complexity for motor control, lighting, and sensor signal-chain tasks.
Typical applications include consumer electronics human-interface controls, low-power IoT sensor nodes, LED lighting drivers using the NCO and PWM peripherals, small appliance control, and battery-powered instrumentation. The XLP sleep currents below 1 uA make it well-suited to energy-harvesting or coin-cell designs.
When designing with this MCU, prioritize low-power modes (sleep/doze) for battery life, place decoupling capacitors within 5 mm of each VDD pin, and use the ICSP header for both debug and in-circuit programming. Program Flash carefully to respect the 10K erase/write endurance specification when storing user-mutable parameters.
This page synthesizes distributor pricing from DigiKey and Mouser, drop-in same-package alternatives, and practical design notes drawn from Microchip's PIC16(L)F1508/9 datasheet that are not aggregated elsewhere.
Drop-in-Alternativen für PIC16F1508-I/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 PIC16F1508-I/SS (gleiche Bauform und Footprint) – abweichend in ADC, Package, Operating Temperature, Program Memory (Flash), Core.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16F1509-I/SS
✅ Drop-In✓ Auf Lager
$1.36 / Stück
Datenblatt ansehen →PIC16F1508-I/SO
✅ Drop-In✓ Auf Lager
$0.92 / Stück
Datenblatt ansehen →PIC16F1508-I/P
✅ Drop-In✓ Auf Lager
$1.04 / Stück
Datenblatt ansehen →PIC16F1507-I/SO
✅ Drop-In✓ Auf Lager
$0.92 / Stück
Datenblatt ansehen →PIC16F1459-I/SS
✅ Drop-In✓ Auf Lager
$1.55 / Stück
Datenblatt ansehen →PIC16F1503-I/ST
✅ Drop-In✓ Auf Lager
$0.94 / Stück
Datenblatt ansehen →PIC16F1455-I/SL
✅ Drop-In✓ Auf Lager
$1.55 / Stück
Datenblatt ansehen →PIC16F1508-I/SS Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC 8-bit enhanced mid-range |
| Instruction Set | 49 instructions, 16-level hardware stack |
| Maximum CPU Frequency | 20 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) |
| RAM | 256 bytes |
| I/O Pins | 18 |
| ADC | 10-bit, multi-channel |
| Operating Voltage (VDD) | 2.3 V to 5.5 V |
| Betriebstemperatur | -40C to +85C (Industrial) |
| Gehäuse | 20-pin SSOP (5.30 mm body width) |
| Core Independent Peripherals | CLC, NCO, PWM, Configurable Logic |
| Programming/Debug | ICSP via PICkit 3, MPLAB ICD 3, Curiosity |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
| MSL-Level | 1 (unlimited floor life at <=30C/85% RH) |
PIC16F1508-I/SS Pin-Konfiguration
| Pin 1 | VDD — Positive supply voltage (2.3V to 5.5V) |
| Pin 2 | RA5 — Digital I/O / analog input |
| Pin 3 | RA4 — Digital I/O / analog input |
| Pin 4 | RA3/MCLR — Digital input only (RA3) or Master Clear reset (MCLR, weak pull-up) |
| Pin 5 | RC5 — Digital I/O |
| Pin 6 | RC4 — Digital I/O |
| Pin 7 | RC3 — Digital I/O / analog input |
| Pin 8 | RC2 — Digital I/O / analog input |
| Pin 9 | RC1 — Digital I/O / analog input |
| Pin 10 | RC0 — Digital I/O / analog input |
| Pin 11 | RA2 — Digital I/O / analog input |
| Pin 12 | RA1 — Digital I/O / analog input / DAC reference |
| Pin 13 | RA0 — Digital I/O / analog input |
| Pin 14 | VSS — Ground reference |
| Pin 15 | RA7 — Digital I/O / oscillator |
| Pin 16 | RA6 — Digital I/O / oscillator |
| Pin 17 | RC7 — Digital I/O / ICSP programming data (PGED) |
| Pin 18 | RC6 — Digital I/O / ICSP programming clock (PGEC) |
| Pin 19 | RB7 — Digital I/O |
| Pin 20 | RB6 — Digital I/O |
Typische Anwendungen
PIC16F1508-I/SS ist geeignet für 7 Anwendungs: Consumer Human-Interface Controls, Battery-Powered IoT Sensor Nodes, LED Lighting Drivers and Controllers, Small Appliance Control Boards, Industrial Sensor Signal Conditioning, Automotive Body and Lighting Modules, Educational and Hobby Embedded Platforms.
Consumer Human-Interface Controls
The PIC16F1508-I/SS is well matched to consumer human-interface controls such as touch buttons, capacitive sliders, and rotary encoder inputs. Its 18 I/O pins comfortably drive RGB LED indicators, multiplex 7-segment displays, and read up to 18 switch contacts without external I/O expanders. The Core Independent Peripherals (CLCs) implement debounce and button-event logic in hardware, freeing the CPU to handle only higher-level state transitions. Operating from 2.3 V to 5.5 V, it works directly from a single Li-ion or 2xAA cell, and XLP sleep currents below 1 uA keep battery life in the months-to-years range for typical remote-control duty cycles. Compared to a 32-bit MCU, the PIC16F1508 cuts BOM cost by roughly 50% while delivering deterministic interrupt response.
Empfohlen
Battery-Powered IoT Sensor Nodes
For duty-cycled IoT sensor nodes reporting temperature, humidity, or motion over sub-GHz or BLE links, the PIC16F1508-I/SS hits the sweet spot of low cost and ultra-low standby power. XLP sleep current under 1 uA combined with the 2.3 V to 5.5 V VDD range allows multi-year coin-cell operation. The 10-bit ADC reads analog sensors directly, while the NCO (Numerically Controlled Oscillator) and CLC peripherals can synthesize wake-up timers or modulate sensor sampling without CPU intervention, keeping average current in the single-digit uA range. UART, SPI, and I2C peripherals connect to any standard radio or sensor front-end. Compared to discrete low-power timer + MCU designs, integrating wake logic into the MCU removes a chip and lowers BOM cost by 20-30%.
Empfohlen
LED Lighting Drivers and Controllers
The PIC16F1508-I/SS's independent PWM and NCO peripherals make it an effective controller for decorative LED strips, RGB mood lighting, and small architectural fixtures. Multiple PWM channels can be phase-shifted via the CIP block to reduce input-current ripple and eliminate the audible noise common with low-frequency PWM. Each PWM channel supports programmable dead-band and fault shut-down, suitable for driving MOSFET half-bridges or constant-current LED driver ICs. Operating at 20 MHz, the MCU has enough bandwidth to run an animated color engine in firmware while leaving headroom for an I2C or DMX interface. Replacing a dedicated LED controller IC with the PIC16F1508 cuts component count and lets designers tune color curves without an IC swap.
Empfohlen
Small Appliance Control Boards
Coffee makers, blenders, fans, and other small appliances benefit from the PIC16F1508-I/SS's combination of 18 robust I/O pins, ADC channels for sensing temperature or motor current, and PWM outputs for motor speed control. The enhanced mid-range core provides deterministic interrupt response that is critical for safety-critical loads such as heater triac drive. Wide 2.3 V to 5.5 V operation lets the same firmware run from a rectified mains rail (after regulation) or from battery backup. Flash endurance of 10K erase/write cycles is sufficient for in-field firmware updates during the appliance's lifetime. Compared to a relay-logic or discrete logic implementation, this MCU reduces PCB area by 60-70%.
Empfohlen
Industrial Sensor Signal Conditioning
For industrial 4-20 mA loop sensors, bridge amplifiers, and transducer signal chains, the PIC16F1508-I/SS provides a low-cost local controller with sufficient performance for linearization, filtering, and HART-style modulation. The 10-bit ADC samples at rates up to ~50 ksps, and the CLC peripherals implement first-order digital filters in hardware. Industrial temperature range -40C to +85C suits factory-floor enclosures, and the 5.5 V VDD tolerance survives noisy 24V loop supplies after regulation. Compared to analog-only signal chains, adding the PIC16F1508 enables digital calibration, unit conversion, and diagnostics that reduce field service calls.
Empfohlen
Automotive Body and Lighting Modules
In non-safety automotive body modules such as interior lighting, mirror control, or seat-position memory, the PIC16F1508-I/SS provides a cost-effective solution where AEC-Q100 qualification is handled by a higher-grade part but the underlying firmware is shared. The 18 I/O pins drive multiple LED channels, read switch inputs, and run LIN or PWM communication. The 20 MHz core is more than adequate for these non-real-time tasks. Operating voltage extends to 5.5 V which matches automotive 12V rails after regulation. Compared to dedicated ASIC controllers, this MCU allows firmware-customizable lighting curves and switch debounce without a custom chip NRE.
Empfohlen
Educational and Hobby Embedded Platforms
The PIC16F1508-I/SS is widely adopted in university embedded systems courses and hobbyist projects because it combines a free toolchain (MPLAB X IDE + XC8 compiler), integrated peripherals, and forgiving 2.3 V to 5.5 V operation that lets students use breadboards and 5V regulators. Core Independent Peripherals provide a hands-on lesson in hardware state machines. Compared to older PIC16F877A baseline designs, the PIC16F1508 introduces modern CIP concepts at the same price point. The 20-pin SSOP variant (I/SS) fits standard SOIC-to-DIP adapter boards for solderless prototyping.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16F1508-I/SS – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16F1509-I/SS | PIC16F1508-I/SO | PIC16F1508-I/P | PIC16F1507-I/SO | PIC16F1459-I/SS | PIC16F1503-I/ST | PIC16F1455-I/SL |
|---|---|---|---|---|---|---|---|---|
| Package | SSOP-20 | SSOP-20 (same) | SOIC-20 (same) | PDIP-20 (same) | SOIC-20 (same) | SSOP-20 (same) | TSSOP-20 (same) | SOIC-14 (smaller) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 14 KB | 7 KB | 7 KB | 3.5 KB | 14 KB | 4 KB | 8 KB |
| RAM | 256 bytes | 512 bytes | 256 bytes | 256 bytes | 128 bytes | 1 KB | 256 bytes | 1 KB |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 48 MHz | 20 MHz | 48 MHz |
| I/O Pins | 18 | 18 | 18 | 18 | 14 | 17 | 18 | 11 |
| USB Peripheral | No | No | No | No | No | Yes (USB 2.0 FS) | No | Yes (USB 2.0 FS) |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| XLP Low Power | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Core Independent Peripherals (CIPs) reduce CPU overhead (vs. PIC16F1827T-I/SS)
- XLP technology provides sub-uA sleep currents (vs. PIC16F1503-I/ST)
- Same family upgrade path with double the Flash and RAM (vs. PIC16F1508-I/SS vs PIC16F1509-I/SS)
- Free MPLAB X toolchain with XC8 compiler (vs. Cross-brand 8-bit MCUs)
Designhinweise
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 1) and a bulk 10 uF capacitor near the IC. For battery-powered designs using XLP sleep, ensure the LDO or battery ESR is below 1 ohm to avoid VDD droop during sleep-to-active wake transitions. Per the Microchip PIC16(L)F1508/9 datasheet, the MCU draws 7 mA typical active at 20 MHz, so a low-cost MCP1702 LDO (250 mA) is more than adequate.
Route the ICSP pins (RC6/PGEC and RC7/PGED) directly to a 0.1 inch header or test pad so production programming is possible without disassembly. Per the Microchip PIC16(L)F1508/9 datasheet, these pins must remain accessible for ICSP even if reused as general I/O in firmware. Keep traces short (<25 mm) and add series 100 ohm resistors near the MCU on long traces to suppress ringing during in-circuit programming.
Do not load RA3/MCLR (pin 4) with a strong pull-down — MCLR is internally pulled high and forcing it low prevents startup. Per the Microchip PIC16(L)F1508/9 datasheet, RA3 is input-only and cannot drive an output, so allocate it as a reset or pure input. Also respect Flash endurance of 10K erase/write cycles when using Flash for user-mutable parameters; for high-write-rate settings use EEPROM or external FRAM instead.
Estimated: SSOP-20 thermal resistance theta_JA is approximately 90 C/W on a 4-layer 1-oz copper JEDEC test board. At 7 mA active current and 5.5 V supply, worst-case power dissipation is roughly 40 mW, well below thermal limits. However, in enclosed designs above +60C ambient, derate by 10 mW per 10C rise to maintain junction below +125C maximum. Always place thermal vias under the SSOP lead frame for production boards.
When using the ADC on any of the RA0-RA5, RC0-RC3 pins, add a 100 nF bypass from VDD to VSS at the analog reference pin and limit source impedance to less than 10 kohm to avoid ADC acquisition errors. Per the Microchip PIC16(L)F1508/9 datasheet, ADC accuracy degrades above 50 ksps sample rates; for high-precision applications use an external 12-bit ADC such as MCP3201 and read via SPI.
Compliance-Informationen
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - the standard -I/SS part is industrial grade; for automotive select -E/SS (extended) or a specific Q-qualified part number. Halogen-free per Microchip green-compliance documentation.
