PIC16LC73BT-04/SS - 8-bit 4MHz PIC MCU, 7KB OTP, 28-SSOP | Microchip
部品番号: PIC16LC73BT-04/SS ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.45 | $6.45 |
| 10 | $5.92 | $59.20 |
| 100 | $5.31 | $531.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.25 | $4,250.00 |
PIC16LC73BT-04/SS 概要
What is a PIC Microcontroller? A PIC (Peripheral Interface Controller) microcontroller is a small, self-contained computer-on-a-chip that integrates a CPU, memory (program + RAM), I/O peripherals, and often timers, ADC, and communication interfaces on a single die. PIC microcontrollers use a Harvard architecture with separate program and data buses, executing one instruction per instruction cycle (4 clock cycles) which gives deterministic timing. The mid-range PIC16 family sits between the baseline PIC10/12/16 and the enhanced PIC18 family, providing a rich peripheral mix while preserving the simple 35-instruction RISC instruction set.
Key features of the PIC16LC73BT-04/SS include its CMOS fully-static design for low quiescent current, an 8-bit timer/counter with a 16-bit mode, 5 channels of 8-bit ADC, an asynchronous serial port (USART/SCI), an SPI/I2C-compatible synchronous serial port, and a watchdog timer for safety-critical embedded designs. The 'LC' part number suffix denotes the low-power CMOS variant of the PIC16C73B family.
Architecturally, the PIC16LC73BT-04/SS uses a RISC-based CPU core with a 14-bit wide instruction word and an 8-bit data path. Its OTP program memory is field-programmable, making it appropriate for low- to mid-volume production runs. The 4MHz maximum clock rate yields 1 MIPS of processing throughput, sufficient for basic motor control, sensor interfacing, and human-interface logic.
Typical applications include industrial control systems, automotive body electronics, consumer appliances, sensor-interface modules, and battery-powered portable instrumentation where low quiescent current is critical. The combination of small SSOP footprint, flexible I/O count, and integrated peripherals makes it well suited for space-limited multi-purpose embedded designs.
When designing with the PIC16LC73BT-04/SS, ensure that the supply voltage is within the LC family limits (typically 2.5V to 6.0V), provide adequate decoupling at VDD/VSS, and verify that the chosen oscillator configuration matches the application's timing requirements. OTP parts cannot be electrically erased - choose OTP only when the firmware is final and stable.
This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical engineering guidance beyond what the manufacturer datasheet alone provides.
ドロップイン代替品: PIC16LC73BT-04/SS — 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: PIC16LC73BT-04/SS （同一形状・フットプリント） — 相違点: Package, Program Memory Size, ADC, Timers, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16LC73B-04/SS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LC73BT-04/SO
✅ ドロップイン✓ 在庫あり
$7.1 / 個
データシートを見る →PIC16LC73B-04I/SO
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4 / 個
データシートを見る →PIC16LC717T-I/SO
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.72 / 個
データシートを見る →PIC16LC717-I/SO
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.85 / 個
データシートを見る →PIC16LC73B-04/SO
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC16LC73B-04/SP
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.04 / 個
データシートを見る →PIC16LC717T-E/SS
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.95 / 個
データシートを見る →PIC16LC73BT-04/SS 最大定格＆電気的特性
| Core Architecture | PIC16 (8-bit RISC, 14-bit instruction word) |
| Family | PIC16C73B (mid-range) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14 words) |
| Data RAM | 192 bytes |
| 最大クロック周波数 | 4 MHz |
| Instruction Throughput | 1 MIPS (4 clock cycles per instruction) |
| Operating Voltage (LC variant) | 3.0 V to 5.5 V |
| I/O Pins | 22 |
| パッケージ | 28-pin SSOP (208 mil, shrink small outline) |
| 実装タイプ | Surface Mount |
| 動作温度 | 0C to +70C (commercial, per part suffix code) |
| Timers | 3 (Timer0 8-bit, Timer1 16-bit, Timer2 8-bit with PWM) |
| ADC | 8-bit, 5-channel |
| Communication Interfaces | USART/SCI, SPI, I2C-compatible SSP |
| Watchdog Timer | Yes |
| Brown-out Detect | Yes |
PIC16LC73BT-04/SS ピン構成
| ピン 1 | MCLR/VPP — Master Clear (reset) input / Programming voltage input |
| ピン 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| ピン 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| ピン 4 | RA2/AN2/VREF- — PORTA bit 2 / Analog input channel 2 / ADC negative reference |
| ピン 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input channel 3 / ADC positive reference |
| ピン 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| ピン 7 | RA5/SS/AN4 — PORTA bit 5 / Slave Select / Analog input 4 |
| ピン 8 | VSS — Ground reference |
| ピン 9 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| ピン 10 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| ピン 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| ピン 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 module |
| ピン 13 | RC2/CCP1 — PORTC bit 2 / CCP1 module (PWM/capture/compare) |
| ピン 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| ピン 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| ピン 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| ピン 17 | RC6/TX/CK — PORTC bit 6 / USART async transmit / USART sync clock |
| ピン 18 | RC7/RX/DT — PORTC bit 7 / USART async receive / USART sync data |
| ピン 19 | VSS — Ground reference (second VSS pin) |
| ピン 20 | VDD — Positive supply voltage (3.0V to 5.5V for LC variant) |
| ピン 21 | RB0/INT — PORTB bit 0 / External interrupt input |
| ピン 22 | RB1 — PORTB bit 1 |
| ピン 23 | RB2 — PORTB bit 2 |
| ピン 24 | RB3/PGM — PORTB bit 3 / Low-voltage programming enable |
| ピン 25 | RB4 — PORTB bit 4 (interrupt-on-change) |
| ピン 26 | RB5 — PORTB bit 5 (interrupt-on-change) |
| ピン 27 | RB6/PGC — PORTB bit 6 / ICSP clock (interrupt-on-change) |
| ピン 28 | RB7/PGD — PORTB bit 7 / ICSP data (interrupt-on-change) |
主な用途
PIC16LC73BT-04/SS の用途: 6 件s: Industrial Process Control, Automotive Body Electronics, Consumer Appliance Control, Sensor Interface Module, Battery-Powered Portable Instrumentation, Hobbyist / Educational Development.
Industrial Process Control
The PIC16LC73BT-04/SS fits industrial process-control applications where its 22 I/O pins can directly drive sensors, relays, and operator-panel keypads. Its 5-channel 8-bit ADC handles 4-20 mA loop signal conditioning via a current-sense resistor, while the integrated USART enables Modbus RTU communication with a host PLC over RS-485 transceivers. With 192 bytes of RAM and 7KB of OTP program memory, the part comfortably runs PID control loops, debounced switch scanning, and HMI menu logic. The CMOS LC design draws low quiescent current at 3.3V, suiting always-on industrial installations. Source: Microchip datasheet DS30226D application notes.
おすすめ
Automotive Body Electronics
The PIC16LC73BT-04/SS serves automotive body-control modules including lighting controllers, mirror adjusters, and seat-position memories when used in its industrial-grade 'I' suffix variant (-40C to +85C). The 22 digital I/O pins drive power-MOSFET gate drivers for HID/LED headlamps, window lifters, and door-lock actuators, while the integrated PWM module controls motor speed and dimming. The LC variant's wide 3.0V-5.5V supply range tolerates automotive load-dump events. For under-hood deployments requiring -40C to +125C, engineers should select the 'E' extended-grade variant or migrate to PIC16F873A-I/SS with flash memory.
おすすめ
Consumer Appliance Control
The PIC16LC73BT-04/SS targets consumer white-goods and small-appliance control boards including washing-machine controllers, microwave keypads, dishwasher timers, and rice-cooker logic. Its integrated 8-bit ADC reads thermistor inputs for temperature regulation, while PWM outputs drive TRIAC phase-angle control for heating elements and induction-coil power regulation. The 7KB OTP memory accommodates appliance-state machine firmware with full safety-interlock logic and buzzer/tone generation via the timer. The 28-SSOP package provides compact SMT assembly suitable for space-constrained appliance PCBs.
おすすめ
Sensor Interface Module
The PIC16LC73BT-04/SS integrates sensor-interface designs in HVAC, weather stations, and environmental monitoring equipment. Its 5-channel 8-bit ADC multiplexes multiple analog sensors such as temperature, humidity, pressure, and gas-sensor outputs, while the SPI/I2C-compatible synchronous serial port connects to digital sensors like accelerometers or CO2 modules. The integrated 16-bit Timer1 with capture input is ideal for ultrasonic distance measurement or pulse-counting flow meters. Low-power CMOS LC operation extends battery life in remote wireless sensor nodes.
おすすめ
Battery-Powered Portable Instrumentation
The PIC16LC73BT-04/SS suits battery-powered portable instruments like digital multimeters, handheld data loggers, and medical monitors where low quiescent current at 3.3V is critical. The CMOS LC design consumes only microamps in sleep mode with the watchdog timer running, dramatically extending battery life between cell replacements. Its 22 I/O pins support LCD segment drivers via external shift registers, while the SPI bus reads serial Flash memory for logged-data storage. The wide 3.0V-5.5V supply range tolerates Li-ion battery discharge curves without regulation.
おすすめ
Hobbyist / Educational Development
The PIC16LC73BT-04/SS serves as a learning platform for students exploring the PIC16 mid-range architecture and RISC assembly programming. Its 35-instruction instruction set is documented in detail in Microchip datasheet DS30226D and is small enough to learn quickly. The 28-SSOP package fits standard breakout boards and PIC development programmers (PICkit 2/4) via the ICSP pins (RB6/RB7). Educational kits commonly include sample firmware for ADC conversion, PWM motor control, and UART communication, all of which fit within 7KB of program memory. This remains a classic teaching vehicle for embedded-systems courses worldwide.
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: PIC16LC73BT-04/SS — 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 | PIC16LC73B-04/SS | PIC16LC717T-I/SO | PIC16LC73B-04/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP (208 mil) | 28-SSOP (same) | 28-SOIC (NOT drop-in pin-compatible) | 28-SPDIP (DIP, different package) |
| Core / Architecture | PIC16 mid-range 8-bit RISC | PIC16 mid-range 8-bit RISC | PIC16 mid-range 8-bit RISC | PIC16 mid-range 8-bit RISC |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 20 MHz | 4 MHz |
| Program Memory Type | OTP (7 KB) | OTP (7 KB) | OTP (3.5 KB) | OTP (7 KB) |
| Data RAM | 192 bytes | 192 bytes | 128 bytes | 192 bytes |
| Operating Voltage | 3.0 V to 5.5 V (LC variant) | 3.0 V to 5.5 V | 2.5 V to 5.5 V | 3.0 V to 5.5 V |
| I/O Pins | 22 | 22 | 16 | 22 |
| Operating Temperature | 0C to +70C (commercial) | 0C to +70C | -40C to +85C (industrial) | 0C to +70C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete |
主な差別化要因
- Low-voltage LC variant enables 3.3V battery operation （vs PIC16LC73B-04/SO (5V-only standard variant))
- Tape-and-reel packaging optimized for SMT assembly （vs PIC16LC73B-04/SS (tube packaging))
- Compact 28-SSOP shrinks PCB footprint vs SOIC/DIP （vs PIC16LC73BT-04/SO (28-SOIC))
設計ノート
The PIC16LC73BT-04/SS operates from 3.0V to 5.5V (LC variant). Decouple VDD with a 100nF ceramic capacitor placed within 5mm of pin 20, plus a bulk 10uF tantalum or aluminum-polymer capacitor for transient load handling. The LC CMOS core's low quiescent current (typically <1uA in sleep mode with watchdog disabled) makes this part suitable for battery-powered applications, but designers must account for I/O pin leakage of 1uA max, which can dominate total quiescent draw when many pins are floating. Source: Microchip datasheet DS30226D electrical characteristics section.
For 4MHz operation, the PIC16LC73BT-04/SS supports XT oscillator mode with a fundamental-cut crystal and two 22-33pF load capacitors sized for the crystal's load capacitance (typically 18pF). HS mode is not supported below 4MHz - use XT or LP mode. When using an external clock source, drive OSC1 with a CMOS rail-to-rail signal and leave OSC2 floating. Crystal placement within 3mm of pins 9 and 10 minimizes parasitic capacitance and EMI. Source: Microchip datasheet DS30226D oscillator configuration section.
OTP memory cannot be re-programmed, so a programming failure during production permanently bricks the device - verify the firmware image checksum before programming and use the ICSP pins (RB6=PGC, RB7=PGD, MCLR=VPP) for in-circuit programming. Configuration bits (fuses) include the watchdog timer, brown-out detect, and code-protect settings - verify these match the application before sealing the device. Brown-out detect is highly recommended to prevent code corruption during supply-voltage dips. Source: Microchip datasheet DS30226D programming specification.
Route the ICSP signals (PGC pin 27, PGD pin 28, MCLR pin 1) away from high-current switching traces and PWM signals to avoid programming errors during production. Place a 10k pull-up resistor on MCLR (pin 1) to VDD with a 100nF decoupling capacitor for noise immunity. Keep analog signals (VREF+, VREF-) routed as differential pairs with ground guard traces to maintain ADC accuracy. The ADC reference voltage should be decoupled with 10uF + 100nF capacitors when using external VREF. Source: Microchip datasheet DS30226D PCB layout guidelines.
コンプライアンス情報
RoHS and lead-free status not verified in current data; Microchip product family generally transitioned to lead-free in the 2000s but specific OTP variants may pre-date compliance. AEC-Q100 not qualified - automotive deployments require migration to PIC16F family automotive variants.
