PIC16C72T-04I/SS - 4MHz 8-Bit MCU, 3.5KB OTP, 28-SSOP | Microchip
部品番号: PIC16C72T-04I/SS ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.48 | $64.80 |
| 100 | $5.76 | $576.00 |
| 500 | $5.18 | $2,590.00 |
| 1,000 | $4.61 | $4,610.00 |
PIC16C72T-04I/SS 概要
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and I/O peripherals. Microcontrollers belong to the broader integrated circuit (IC) hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16C72 family occupies Microchip's classic mid-range PIC architecture, which uses a 14-bit instruction word and a Harvard bus to keep program and data memories separate, enabling deterministic single-cycle instruction execution on most opcodes.
Key features of the PIC16C72T-04I/SS include a 4 MHz maximum clock, 22 general-purpose digital I/O pins, a 5-channel 8-bit analog-to-digital converter (ADC), a USART module for asynchronous serial communication, an SSP module supporting SPI and I2C (master/slave), two 8-bit timers plus one 16-bit timer with capture/compare/PWM, a watchdog timer with its own on-chip RC oscillator, and an industrial operating temperature range of -40C to +85C. The on-chip ADC removes the need for an external converter in low-resolution sensor designs.
The part uses Microchip's RISC core with only 35 single-word instructions, all single-cycle except program branches (which take two cycles). The OTP program memory makes it well suited for volume production where firmware is finalized, while the SSOP-28 footprint allows compact board placement with the T-suffix indicating tape-and-reel delivery for high-volume SMT assembly lines.
Typical applications include industrial control subsystems, sensor-interface front ends, low-speed motor control, appliance control boards, simple protocol bridges, and battery-powered instrumentation where the 4 MHz clock, 8-bit ADC, and integrated I2C/SPI peripherals cover the entire design without external glue logic.
Design tip: because this is an OTP device, firmware must be fully validated on a windowed or FLASH equivalent (such as PIC16F72) before committing to PIC16C72T-04I/SS in production. A 100 nF decoupling capacitor should be placed within 5 mm of VDD, and the MCLR pin must be tied to VDD through a 10 kohm resistor for normal operation.
This page synthesizes distributor pricing, drop-in alternatives drawn from Microchip's PIC16C7x family, and practical design notes not found in the standalone datasheet PDF.
ドロップイン代替品: PIC16C72T-04I/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: PIC16C72T-04I/SS （同一形状・フットプリント） — 相違点: Package, RoHS Status, Timers, ADC, Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16C72-04I/SS
✅ ドロップイン✓ 在庫あり
$4.42 / 個
データシートを見る →PIC16C72T-04E/SS
✅ ドロップイン✓ 在庫あり
$5.1 / 個
データシートを見る →PIC16C72AT-04E/SS
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$3.3 / 個
データシートを見る →PIC16F72-I/SS
✅ ドロップイン✓ 在庫あり
$2.19 / 個
データシートを見る →PIC16C712T-04I/SS
✅ ドロップイン✓ 在庫あり
$3.9 / 個
データシートを見る →PIC16C72T-04I/SS 最大定格＆電気的特性
| Core Architecture | 8-bit PIC16C mid-range RISC |
| Instruction Word Width | 14 bits |
| 最大クロック周波数 | 4 MHz |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data RAM | 128 bytes |
| Data EEPROM | Not present |
| I/O Pins | 22 |
| ADC | 5 channels x 8-bit |
| Timers | 2 x 8-bit, 1 x 16-bit (CCP) |
| Communication Peripherals | USART (SCI), SSP (SPI / I2C master-slave) |
| Watchdog Timer | Yes (independent on-chip RC oscillator) |
| Supply Voltage (VDD) | 4.0 V to 6.0 V (industrial) |
| 動作温度 | -40 C to +85 C (industrial, "I" grade) |
| パッケージ | 28-pin SSOP (5.30 mm body, 0.65 mm pitch) |
| 実装タイプ | Surface Mount, Tape & Reel (T-suffix) |
PIC16C72T-04I/SS ピン構成
| ピン 1 | RA0/AN0 — PORTA bit 0 / ADC input 0 |
| ピン 2 | RA1/AN1 — PORTA bit 1 / ADC input 1 |
| ピン 3 | RA2/AN2 — PORTA bit 2 / ADC input 2 |
| ピン 4 | RA3/AN3/VREF — PORTA bit 3 / ADC input 3 / ADC reference voltage |
| ピン 5 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input (open-drain) |
| ピン 6 | RA5/SS/AN4 — PORTA bit 5 / SPI slave select / ADC input 4 |
| ピン 7 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| ピン 8 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| ピン 9 | MCLR/VPP — Master clear reset (active low) / programming voltage |
| ピン 10 | VDD — Positive supply voltage (4.0 V to 6.0 V) |
| ピン 11 | VSS — Ground reference |
| ピン 12 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| ピン 13 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 output |
| ピン 14 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| ピン 15 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| ピン 16 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| ピン 17 | RC5/SDO — PORTC bit 5 / SPI data out |
| ピン 18 | RC6/TX/CK — PORTC bit 6 / USART TX / USART synchronous clock |
| ピン 19 | RC7/RX/DT — PORTC bit 7 / USART RX / USART synchronous data |
| ピン 20 | VSS — Ground reference (second VSS pin) |
| 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 — PORTB bit 3 |
| ピン 25 | RB4 — PORTB bit 4 |
| ピン 26 | RB5 — PORTB bit 5 |
| ピン 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| ピン 28 | RB7/PGD — PORTB bit 7 / ICSP data |
主な用途
PIC16C72T-04I/SS の用途: 6 件s: Industrial Sensor Interface Front End, Appliance Control Board (Washing Machine, Dishwasher), Battery-Powered Instrumentation, Low-Speed Motor Control (Fan, Pump, Valve), Simple Protocol Bridge / Gateway, Automotive Body Electronics (Non-Safety).
Industrial Sensor Interface Front End
The PIC16C72T-04I/SS is well suited to industrial sensor interface front ends thanks to its integrated 5-channel 8-bit ADC, 22 GPIO pins, and industrial -40C to +85C operating temperature. The 4 MHz RISC core delivers 4 MIPS of throughput, sufficient to sample multiple analog inputs, run a digital filtering loop, and push results over the on-chip USART or SSP (SPI/I2C) to a host controller. The 3.5 KB OTP program memory accommodates mid-sized sensor protocols (e.g., simple Modbus RTU framing) without external storage. In a typical thermocouple board the MCU scans five RTD or thermistor channels, linearizes the readings, and reports via RS-485 - one chip replaces a discrete ADC plus logic.
おすすめ
Appliance Control Board (Washing Machine, Dishwasher)
In appliance control boards the PIC16C72T-04I/SS runs keypad scanning, LED/LCD multiplexing, motor-control PWM, and safety timeout logic on a single chip. The 16-bit timer with capture/compare/PWM provides accurate control signals for triac-fired universal motors or solenoid valves, while the 8-bit timers service keypad debounce and buzzer tones. Industrial temperature rating plus the 4.0-6.0 V supply range tolerates rectified mains rails commonly found in white goods. The 22 GPIO pins drive 7-segment displays, keypads, relay banks, and status LEDs without needing an I/O expander, and the 3.5 KB OTP budget covers typical appliance state machines comfortably.
おすすめ
Battery-Powered Instrumentation
Battery-powered instruments such as handheld multimeters, portable gas detectors, and field data loggers benefit from the PIC16C72T-04I/SS's low-power 8-bit core, on-chip ADC, and SSP peripheral for I2C sensor interfacing. The 4 MHz clock can be gated down between measurements using the watchdog timer as a low-power wakeup source, stretching battery life. OTP memory ensures the firmware cannot be reverse-engineered through the program bus - important for calibrated instruments. The industrial temperature grade supports outdoor and automotive service environments, while the SSOP-28 footprint fits slim handheld enclosures.
おすすめ
Low-Speed Motor Control (Fan, Pump, Valve)
The PIC16C72T-04I/SS integrates a 16-bit CCP module capable of generating PWM at up to the 4 MHz instruction rate, making it ideal for low-speed brushed DC motor, fan, pump, or proportional valve control. The 8-bit ADC reads back tachogenerator or current-sense signals for closed-loop PID, while GPIO pins drive H-bridge enable lines and direction logic. The 35-instruction RISC core executes a small PID loop in well under 100 microseconds, leaving headroom for keypad input and fault detection. The SSOP-28 package is small enough for embedded motor housings, and the 22 I/O lines drive end-stop, encoder, and indicator functions.
おすすめ
Simple Protocol Bridge / Gateway
The PIC16C72T-04I/SS bridges between I2C sensor buses and UART host controllers, or between SPI peripherals and RS-232 links, all without external glue logic. The USART handles asynchronous serial framing, while the SSP module independently services SPI or I2C master-slave transactions, allowing concurrent protocol translation on two physical ports. The 3.5 KB OTP program memory holds protocol state machines and small translation tables, and the 128-byte RAM supports the working buffers needed for full-duplex bridging. Industrial temperature grade and the SSOP-28 footprint suit DIN-rail mounted industrial gateway products.
おすすめ
Automotive Body Electronics (Non-Safety)
For non-safety automotive body modules such as interior lighting controllers, mirror adjusters, seat controllers, and accessory timers, the PIC16C72T-04I/SS provides a cost-optimized 8-bit solution with industrial temperature rating and on-chip ADC for current sensing. Note that AEC-Q100 qualification is not available on this OTP part - it is appropriate for body electronics on a 12 V bus that is post-regulated and protected, but safety-critical ECUs require a different part. The PWM, USART, and SSP peripherals cover typical body-comfort functions, and the SSOP-28 footprint eases layout on space-constrained body modules.
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: PIC16C72T-04I/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 | PIC16C72-04I/SS | PIC16C72T-04E/SS | PIC16C72AT-04E/SS | PIC16F72-I/SS | PIC16C712T-04I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB FLASH | 1.75 KB OTP |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 8 MHz | 20 MHz | 4 MHz |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| I/O Pins | 22 | 22 | 22 | 22 | 22 | 13 |
| ADC | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 8 x 8-bit |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C |
| Memory Type | OTP | OTP | OTP | OTP | FLASH | OTP |
| Delivery Form | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
主な差別化要因
- Compact 28-SSOP industrial-temperature OTP MCU with 4 MIPS throughput （vs PIC16C711T-20I/SS)
- 5-channel 8-bit on-chip ADC eliminates external converter （vs PIC16C711-04E/SS)
- Built-in USART plus SSP (SPI/I2C) for dual-protocol bridging （vs PIC16C56T-04I/SS)
設計ノート
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 10) and a bulk capacitor (e.g., 10 uF tantalum or 4.7 uF ceramic) at the board entry point. The PIC16C72T-04I/SS operates from 4.0 V to 6.0 V; do not connect it directly to a 12 V automotive bus without a post-regulator. Hold MCLR high through a 10 kohm pull-up to VDD for normal operation, and add a 100 nF capacitor from MCLR to VSS for noise immunity in industrial environments with long wiring harnesses.
Because PIC16C72T-04I/SS is an OTP device, firmware must be fully validated on a windowed (JW) part or on the FLASH-compatible PIC16F72-I/SS before committing to production programming. Engineering prototypes should never use the OTP variant because every firmware change requires a new part. Also note that this part is classified NRD (Not Recommended for New Designs) per Microchip lifecycle policy - new designs should evaluate PIC16F72-I/SS or a modern PIC16F1xxx successor that shares the same SSOP-28 footprint.
Route the oscillator traces (OSC1, OSC2) short and symmetric, with a ground guard ring if possible, to minimize EMI pickup on the 4 MHz clock. Place the crystal or resonator within 5 mm of the OSC pins. Keep the ICSP clock (PGC, pin 27) and data (PGD, pin 28) traces accessible for production programming - they double as PORTB[6:7] and should not be wired permanently low or high. The SSOP-28 footprint is shared with PIC16F72 and other PIC16C7x variants, enabling single-board support for OTP and FLASH variants.
Estimated: at VDD = 5 V and a 4 MHz clock, the PIC16C72T-04I/SS draws approximately 2 mA to 5 mA active and a few hundred microamps in sleep mode, for worst-case dissipation well under 25 mW. The SSOP-28 package's theta_JA of approximately 80 C/W means a junction rise of only ~2 C above ambient - no heatsinking is required. Designers can ignore thermal management for this part, but should still follow standard decoupling practices to keep digital switching noise off the analog ADC rails.
コンプライアンス情報
AEC-Q100 not available on this OTP part. RoHS/REACH status not explicitly stated in the verified data - check with Microchip or distributor before committing to a lead-free assembly process.
