PIC16LF1764-I/SL - 8-bit MCU, 7KB Flash, 32MHz, 14-SOIC | Microchip
部品番号: PIC16LF1764-I/SL ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.93 | $0.93 |
| 10 | $0.84 | $8.40 |
| 100 | $0.74 | $74.00 |
| 500 | $0.66 | $330.00 |
| 1,000 | $0.59 | $590.00 |
| 3,000 | $0.52 | $1,560.00 |
PIC16LF1764-I/SL 概要
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, Flash program memory, SRAM, peripherals, and I/O on one die, executing instructions on 8-bit data words. PIC microcontrollers use a RISC-based Harvard architecture with separate program and data buses, enabling single-cycle instruction execution at 32 MHz (8 MHz instruction rate with the 4:1 clock divider). MCUs sit within the broader hierarchy of microprocessors, systems-on-chip, and digital ICs and are the building blocks of embedded control.
Key features include 10-bit ADC, 10-bit DAC, two operational amplifiers, zero-cross detect (ZCD), programmable ramp generator (PRG), three Configurable Logic Cells (CLC), 100 mA high-current I/O pins, peripheral pin select (PPS), and 10/16-bit PWMs. These intelligent-analog peripherals allow two independent closed-loop control channels on a single 14-pin device, dramatically reducing external analog circuitry in motor-control, lighting, and power conversion designs.
The architecture leverages nanoWatt XLP technology for sub-uA sleep currents, wide digital and analog integration, and PPS for flexible signal routing, eliminating the need for external muxing. With 32 MHz performance at 1.8V, code density per mW is exceptionally high compared to older 5V PIC16 families, allowing direct drop-in upgrades from legacy parts.
Typical applications include LED lighting drivers, BLDC/PMSM motor control subsystems, switch-mode power supply control, battery chargers, and industrial sensor conditioning. The combination of op amps, comparators, ZCD, and PRG in a small 14-SOIC package makes the PIC16LF1764 particularly attractive for cost-sensitive consumer products requiring analog control.
When designing with this device, plan for ICD debugging via the ICSP pins (PGEC/PGED) and reserve RA0/RA1 if in-circuit programming is required in production. The PPS remapping feature simplifies PCB layout, but pin function defaults at reset must still be checked to avoid unintended peripheral drive.
This page synthesizes distributor stock, drop-in 14-SOIC alternatives, and practical engineering design notes specific to the PIC16LF1764-I/SL that are not collected in the manufacturer datasheet alone.
ドロップイン代替品: PIC16LF1764-I/SL — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC16LF1764-I/SL （同一形状・フットプリント） — 相違点: Package, ADC, Operating Temperature, Program Memory (Flash), Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16LF1765-I/SL
✅ ドロップイン✓ 在庫あり
$0.96 / 個
データシートを見る →PIC16F1764-I/SL
✅ ドロップイン✓ 在庫あり
$1.28 / 個
データシートを見る →PIC16LF1768-I/SL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LF1769-I/SL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LF1764-E/SL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LF1764-I/SL 最大定格＆電気的特性
| Core Architecture | PIC16 RISC, 8-bit Harvard |
| Program Memory (Flash) | 7KB (4K x 14 words) |
| Data SRAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Max CPU Speed | 32 MHz (8 MHz instruction rate) |
| Operating Voltage | 1.8 V to 3.6 V (LF low-power family) |
| 動作温度 | -40 C to +85 C (industrial grade) |
| ADC | 10-bit, multiple channels |
| DAC | 10-bit |
| Operational Amplifiers | 2 internal op amps |
| Zero-Cross Detect (ZCD) | 1 internal |
| Configurable Logic Cells (CLC) | 3 |
| PWM | 10/16-bit, multiple channels |
| High-Current I/O Drive | 100 mA capable pins |
| Peripheral Pin Select (PPS) | Yes |
| パッケージ | 14-SOIC (narrow body, 3.9 mm) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
PIC16LF1764-I/SL ピン構成
| ピン 1 | RA0/ICSPDAT — Bidirectional I/O / In-Circuit Serial Programming data |
| ピン 2 | RA1/PWM4 — Bidirectional I/O / PWM output |
| ピン 3 | RA2 — Bidirectional I/O / analog capable |
| ピン 4 | MCLR/RA3 — Master Clear (reset) input or I/O |
| ピン 5 | RA4 — Bidirectional I/O / analog input |
| ピン 6 | VSS — Ground reference |
| ピン 7 | VDD — Positive supply (1.8V-3.6V) |
| ピン 8 | RB4 — High-current I/O (100 mA capable) |
| ピン 9 | RB5 — High-current I/O (100 mA capable) |
| ピン 10 | RB6/PGC — Bidirectional I/O / ICSP clock |
| ピン 11 | RB7/PGD — Bidirectional I/O / ICSP data |
| ピン 12 | RA5 — Bidirectional I/O / analog input |
| ピン 13 | RA6 — Bidirectional I/O / analog input |
| ピン 14 | RA7 — Bidirectional I/O / analog input |
主な用途
PIC16LF1764-I/SL の用途: 6 件s: LED Lighting Drivers, BLDC/PMSM Motor Control Subsystems, Switch-Mode Power Supply (SMPS) Control, Battery Chargers (Li-ion / NiMH), Industrial Sensor Conditioning, Home Appliance Control (White Goods).
LED Lighting Drivers
The PIC16LF1764-I/SL's on-chip 100 mA high-current I/O drive and 10/16-bit PWMs make it ideal for direct LED driving without external MOSFETs in low-cost retrofit lamps. The 2 internal op amps support constant-current feedback loops by sensing shunt-resistor drop and modulating PWM duty cycle, while the zero-cross detect (ZCD) captures AC line crossing for TRIAC dimmer compatibility in line-powered luminaires. The PRG (programmable ramp generator) enables smooth fade-in/fade-out transitions without timer interrupts, keeping the firmware small and the BOM minimal at 14-SOIC footprint.
おすすめ
BLDC/PMSM Motor Control Subsystems
The combination of two op amps, ZCD, 10-bit DAC, and 10-bit ADC in the PIC16LF1764-I/SL creates two independent feedback channels for sensorless BLDC commutation or PMSM field-oriented control in small motors. The CLC cells (3) can implement hardware state machines for commutation timing without CPU load, freeing the 32 MHz core for outer-loop control. The 100 mA I/O drive allows direct low-side MOSFET gate drive up to a few amps, eliminating predriver cost in consumer-grade fan or pump controllers below 20W.
おすすめ
Switch-Mode Power Supply (SMPS) Control
The PIC16LF1764-I/SL integrates the analog control loop peripherals required for isolated and non-isolated SMPS designs: a 10-bit ADC samples output voltage, the op amp implements transconductance error amplification, and the 10/16-bit PWM generates the switching frequency up to several hundred kHz. The PRG can implement slope compensation for peak-current-mode control, while ZCD detects transformer demagnetization in flyback topologies. With 7KB Flash and the LF voltage range, the device runs directly off the auxiliary winding or battery without an extra regulator.
おすすめ
Battery Chargers (Li-ion / NiMH)
Li-ion and NiMH chargers benefit from the PIC16LF1764-I/SL's nanoWatt XLP sleep current and 1.8V-3.6V native operation. One op amp monitors charge current via a sense resistor, the second op amp monitors battery voltage for CC/CV (constant-current, constant-voltage) transition logic, and the 10-bit DAC programs the reference for accurate termination. The 32 MHz speed handles USB-C PD negotiation or simple LED status indication. The same 14-SOIC footprint across the LF family allows a single PCB to ship in 5SKU variants.
おすすめ
Industrial Sensor Conditioning
The PIC16LF1764-I/SL integrates the analog front end needed to read thermocouples, RTDs, and 4-20 mA current loops: 2 op amps buffer the sensor signal, the 10-bit ADC digitizes it, and the 10-bit DAC drives a 4-20 mA loop with calibration. CLC cells implement digital filtering and oversampling without CPU burden, while PPS routes the comparator-driven interrupts for low-latency response. Operating at 1.8V-3.6V from a 3.3V industrial rail, the MCU simplifies loop-powered and battery-backed sensor designs in factory automation.
おすすめ
Home Appliance Control (White Goods)
White goods such as coffee machines, induction cooktops, and dishwasher controllers use the PIC16LF1764-I/SL for integrated analog and digital control in a single 14-SOIC package. The op amps process temperature and pressure sensor signals, the ZCD detects AC line zero crossings for TRIAC or relay synchronization, and the CLCs implement custom safety logic with deterministic response. The PRG generates ramp profiles for coffee pre-infusion or induction power-up. Industrial temperature grade (-40C to +85C) and RoHS compliance suit consumer appliance safety and environmental requirements.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC16LF1764-I/SL — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC16LF1764-I/P | PIC16LF1765-I/SL | PIC16F1764-I/SL | PIC16LF1768-I/SL | PIC16LF1769-I/SL |
|---|---|---|---|---|---|---|
| Package | 14-SOIC (narrow body) | PDIP-14 - not drop-in (through-hole) | 14-SOIC (narrow body) | 14-SOIC (narrow body) | 14-SOIC (narrow body) | 14-SOIC (narrow body) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Flash Program Memory | 7KB | 7KB | 14KB | 7KB | 28KB | 28KB |
| SRAM | 512 B | 512 B | 1KB | 512 B | 2KB | 2KB |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
主な差別化要因
- Integrated intelligent analog peripherals in 14-SOIC （vs PIC16F1704-I/SL)
- Drop-in upgradability to 1765/1768/1769 in same package （vs PIC16LF1764-I/P (PDIP-14))
- 1.8V minimum VDD extends battery life （vs PIC16F1764-I/SL)
設計ノート
PIC16LF1764-I/SL is a 3.3V class MCU - applying 5V to VDD will damage the part. Use a regulator such as MCP1700 between USB (5V) or 24V industrial rails and the device. If 5V-tolerant operation is required, choose the PIC16F1764-I/SL instead. Note that the 'LF' 1.8V minimum excludes operation directly from a deeply discharged Li-ion cell without a boost circuit.
For ICSP (In-Circuit Serial Programming), expose the PGC and PGD pins (RB6/RB7) on the production board so devices can be programmed after reflow. The MCLR pin must have a 10 kohm pull-up to VDD and a capacitor to ground for proper reset. Avoid routing noisy switching signals (PWM outputs) near the ICSP pins or analog op-amp inputs on a 4-layer board stackup.
Estimated: at VDD=3.3V and 32 MHz active current draw is approximately 2-4 mA per the datasheet; sleep current can drop below 1 uA with nanoWatt XLP mode. For battery-powered designs, gate the MCU into sleep between sensor samples and use the op amp + ZCD as wake-up sources via interrupts. Decouple VDD with 100 nF ceramic + 10 uF bulk placed within 5 mm of the supply pin.
コンプライアンス情報
Industrial temperature grade (-40C to +85C); RoHS and lead-free per Microchip product page. AEC-Q100 qualification is not available on this part - for automotive applications use AEC-Q100 qualified PIC16 variants in the same family.
