PIC16F1708-I/SS - 8-bit MCU, 32MHz, 7KB Flash, 20-SSOP | Microchip
부품 번호: PIC16F1708-I/SS ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.46 | $2.46 |
| 10 | $2.21 | $22.10 |
| 100 | $1.86 | $186.00 |
| 500 | $1.58 | $790.00 |
| 1,000 | $1.39 | $1,390.00 |
PIC16F1708-I/SS 개요
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable I/O peripherals. The PIC16 enhanced mid-range architecture uses a 14-bit wide instruction set and a Harvard bus structure (separate program and data paths), which keeps each instruction cycle to 200 ns at 32 MHz. Within the broader taxonomy, an MCU falls under Integrated Circuits > Microcontrollers, sitting below microprocessor and above SoC in design complexity, and the PIC16F1708 belongs specifically to the PIC16F1xxx enhanced mid-range family.
Key features include two on-chip operational amplifiers, a 10-bit ADC with up to 12 channels, an 8-bit DAC, a high-speed comparator, two PWM modules with time-base, and Core Independent Peripherals (CLC, COG/NCO, Zero-Cross Detect). Peripheral Pin Select (PPS) provides signal routing flexibility, EUSART supports LIN, and I2C/SPI handle inter-IC communication. With XLP sleep current in the nA range and a wide 1.8V to 5.5V supply range, the part is optimized for battery-powered and energy-harvesting designs.
The PIC16F1708 is fabricated on a low-power CMOS process and includes a programmable brown-out reset (BOR), watchdog timer with its own on-chip RC oscillator, and an in-circuit serial programming (ICSP) interface that allows field firmware upgrades without removing the chip from the board. The CLC and COG blocks implement combinatorial logic and waveform generation in hardware without CPU load.
Typical applications include IoT sensor nodes, handheld instrumentation, smart-home peripherals, low-cost motor control (small BLDC fans, brushed DC, and steppers via the COG), LED lighting controllers, and battery-powered medical/wearable devices. The on-chip op amps and DAC simplify signal conditioning, eliminating external analog components and shrinking BOM cost.
When designing with this MCU, allocate at least one I/O pin pair for ICSP programming (PGC/PGD), confirm the VDD/VSS decoupling network (typically 100 nF plus a bulk cap) is placed close to the pin, and verify that PPS mapping for the chosen EUSART/SPI lines does not conflict with the ICSP pins. Use the on-chip op amps in unity-gain or transimpedance configurations only after checking the input common-mode range against the supply rail.
This page synthesizes distributor pricing for the PIC16F1708-I/SS, same-package drop-in alternatives in the PIC16 family, and practical design notes not consolidated in any single distributor listing.
드롭인 대체품: PIC16F1708-I/SS — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16F1708-I/SS (동일 폼 팩터 및 풋프린트) — 차이점: ADC, Comparators, Package, Core Independent Peripherals, Program Memory (Flash).
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F1708T-I/SS
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F1708-E/SS
✅ 드롭인✓ 재고 있음
$0.69 / 개
데이터시트 보기 →PIC16F1709-I/SS
✅ 드롭인✓ 재고 있음
$1.1 / 개
데이터시트 보기 →PIC16F1704-I/ST
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$0.62 / 개
데이터시트 보기 →PIC16F1718-I/SS
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1.45 / 개
데이터시트 보기 →PIC16F1708-I/SS 최대 정격 & 전기적 특성
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit |
| Instruction Set Width | 14-bit |
| Maximum CPU Frequency | 32 MHz |
| Instruction Cycle Time | 200 ns at 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 512 bytes |
| Data EEPROM | 0 bytes |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| I/O Pins | 17 (typical for 20-SSOP package) |
| ADC | 10-bit, up to 12 channels |
| DAC | 8-bit, 1 channel |
| On-chip Operational Amplifiers | 2 |
| Comparators | High-speed comparator |
| PWM Modules | 2 (with time-base) |
| Core Independent Peripherals | CLC, COG/NCO, Zero-Cross Detect |
| Peripheral Pin Select (PPS) | Yes |
| Communication | EUSART (LIN), I2C, SPI |
| Operating Temperature (Industrial -I) | -40 C to +85 C |
| 패키지 | 20-pin SSOP (0.65 mm pitch) |
| 실장 유형 | Surface Mount |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Low-Power Feature | XLP (eXtreme Low Power), nA-range sleep |
| RoHS 상태 | Compliant |
PIC16F1708-I/SS 핀 구성
| 핀 1 | RA3 — Digital I/O / analog input AN3 |
| 핀 2 | RA5 — Digital I/O / analog input AN5 |
| 핀 3 | RA4 — Digital I/O / analog input AN4 |
| 핀 4 | MCLR/RA2 — Reset input (active low) / digital I/O |
| 핀 5 | RC0 — Digital I/O |
| 핀 6 | RC1 — Digital I/O |
| 핀 7 | RC2 — Digital I/O |
| 핀 8 | RC3 — Digital I/O |
| 핀 9 | RC4 — Digital I/O |
| 핀 10 | RC5 — Digital I/O |
| 핀 11 | VSS — Ground reference |
| 핀 12 | VDD — Positive supply voltage (1.8V to 5.5V) |
| 핀 13 | RB4 — Digital I/O (ICSP PGC) |
| 핀 14 | RB5 — Digital I/O (ICSP PGD) |
| 핀 15 | RB6 — Digital I/O / ICSP PGC clock |
| 핀 16 | RB7 — Digital I/O / ICSP PGD data |
| 핀 17 | RA0 — Digital I/O / analog input AN0 / OPA1IN+ |
| 핀 18 | RA1 — Digital I/O / analog input AN1 / OPA1IN- |
| 핀 19 | RA6 — Digital I/O / OPA1OUT |
| 핀 20 | RA7 — Digital I/O / OPA2OUT |
일반적인 애플리케이션
PIC16F1708-I/SS 적합 용도: 6 애플리케이션s: IoT Sensor Nodes, Handheld Instrumentation, Smart Home Peripherals, Low-Cost Motor Control (BLDC / Brushed DC / Stepper), LED Lighting Controllers, Battery-Powered Medical and Wearable Devices.
IoT Sensor Nodes
The PIC16F1708-I/SS is well suited for IoT sensor nodes thanks to its XLP nA-range sleep current, 1.8 V to 5.5 V VDD range, and on-chip 10-bit ADC. In a typical deployment, the MCU wakes from sleep on a timer interrupt, samples a sensor through one of the two on-chip op amps configured as a transimpedance amplifier, transmits the data over EUSART or SPI, and returns to sleep. The PPS feature lets the designer route the UART TX line to any spare I/O, simplifying PCB layout in space-constrained modules. Compared to discrete MCU plus analog front-end solutions, the PIC16F1708 integrates signal conditioning, eliminating 2-3 external op amps and reducing BOM cost for high-volume sensor products.
추천
Handheld Instrumentation
For handheld instruments like multimeters, thermometers, and field meters, the PIC16F1708-I/SS provides sufficient compute for display driving, button scanning, and measurement routines on a single cell. The on-chip 8-bit DAC and op amps build the stimulus/sense analog front end without external ICs, while the CLC and COG blocks generate precise PWM drive signals for LCD bias or buzzer tones without CPU load. Power consumption is dominated by the display backlight rather than the MCU, and the nA-range XLP sleep allows the unit to sit idle for months on a single coin cell between user measurements.
추천
Smart Home Peripherals
In smart-home peripherals such as occupancy sensors, smart switches, and HVAC controllers, the PIC16F1708-I/SS handles both local control and wireless communication management. The EUSART can interface to common sub-GHz radio modules, while the CLC blocks implement capacitive touch sensing without external logic. The Zero-Cross Detect peripheral synchronizes triac firing to AC line zero crossings for solid-state relay control, eliminating software latency and EMC issues. With 7 KB Flash, the device runs Zigbee or LoRa MAC stacks trimmed to the application, and its XLP mode keeps standby power below energy-star limits.
추천
Low-Cost Motor Control (BLDC / Brushed DC / Stepper)
The PIC16F1708-I/SS drives small BLDC, brushed DC, and stepper motors via the on-chip PWM and the COG/NCO peripheral that generates complementary outputs with programmable dead-band. The op amps can sense motor current via shunt resistors, closing a current loop without external amplifiers. The 32 MHz CPU runs FOC or trapezoidal commutation algorithms in firmware for sub-100 W motor applications such as PC fans, small pumps, and appliance actuators. The CLC module handles fault interlocks in hardware, protecting the power stage during over-current events faster than any software loop could react.
추천
LED Lighting Controllers
LED lighting controllers benefit from the PIC16F1708-I/SS's high-resolution PWM, on-chip op amps for current sensing, and CLC blocks for sequencing. A typical constant-current LED driver uses one op amp as a transimpedance amplifier across a sense resistor, while the PWM outputs drive a buck or boost FET for dimming. The nA sleep current supports battery-backed emergency lighting, and the ZCD peripheral detects AC line zero crossings for TRIAC dimmer compatibility in retrofit bulbs. With Peripheral Pin Select, the PWM channels can be remapped to optimize PCB routing for linear LED arrays.
추천
Battery-Powered Medical and Wearable Devices
Battery-powered medical and wearable devices require ultra-low standby current and small PCB footprint, both delivered by the PIC16F1708-I/SS. In a pulse-oximeter or fitness band, the on-chip op amps drive the LED transmit side and amplify the photodiode receive signal, while the 10-bit ADC samples the waveform. The XLP sleep current extends coin-cell life to multi-month runtime, and the 20-SSOP package at 0.65 mm pitch fits inside a wristband form factor. The EUSART can stream processed data to a Bluetooth or ANT+ radio module without burdening the 8-bit core, and the ICSP interface allows firmware updates in the field.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16F1708-I/SS — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F1708T-I/SS | PIC16F1708-E/SS | PIC16F1709-I/SS | PIC16F1704-I/ST | PIC16F1718-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP (footprint compatible in 20-pin variations) | 20-SSOP - same |
| Flash Memory | 7 KB | 7 KB | 7 KB | 14 KB | 7 KB | 28 KB |
| RAM | 512 B | 512 B | 512 B | 1024 B | 512 B | 2 KB |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| On-chip Op Amps | 2 | 2 | 2 | 2 | 2 | 2 |
| ADC | 10-bit, 12 ch | 10-bit, 12 ch | 10-bit, 12 ch | 10-bit, 12 ch | 10-bit, 8 ch | 10-bit, 17 ch |
| PPS Support | Yes | Yes | Yes | Yes | Yes | Yes |
주요 차별점
- On-chip analog integration in a 20-pin SSOP (vs PIC16F1708T-I/SS)
- Industrial temperature grade at lowest cost (vs PIC16F1708-E/SS)
- Larger memory headroom available in same package (vs PIC16F1709-I/SS)
설계 노트
Estimated: at 32 MHz active current around 1.5 mA from a 3.3 V supply, plus sub-uA XLP sleep current. Battery life for a duty-cycled sensor node is dominated by sleep current; ensure firmware uses the SLEEP instruction with proper peripheral gating. Use the on-chip LFINTOSC for low-power wake-up timing.
Place a 100 nF decoupling capacitor within 2 mm of the VDD pin, plus a 10 uF bulk cap shared across the board. The SSOP-20 package's exposed lead frames benefit from a continuous ground pour on the top layer to reduce digital switching noise coupling into op-amp inputs. Keep analog signal traces short and away from PWM outputs.
Do not assume the same ADC channel works for both op-amp output and general analog input; consult the PPS mapping table. The MCLR pin (RA2) cannot be left floating - tie it to VDD through a 10 kohm resistor for normal operation, or to VDD directly if unused. The ICSP pins RB6/RB7 must be reserved for programming; ensure your application does not drive them strongly during reset.
Route the ICSP PGC/PGD traces with the same impedance as the rest of the board, and keep them away from high-current switching nets. If using the COG module for motor drive, place the dead-band-generating logic-cell outputs near the gate-driver IC to minimize loop area. The ZCD input pin needs a current-limiting resistor (typically 1 kohm) when sensing 110/220 V AC mains.
규정 준수 정보
Industrial -I temperature grade (-40C to +85C). Lead-free and halogen-free per Microchip material content declaration. Not AEC-Q100 qualified; for automotive, evaluate PIC16F1708-E/SS or higher grade automotive parts.
