PIC16C72T-10I/SS - 8-Bit 10MHz MCU, 3.5KB OTP, 28-SSOP | Microchip
MPN: PIC16C72T-10I/SS ✓ Hoạt độngPIC16C72T-10I/SS Tóm tắt
Background: An 8-bit microcontroller (MCU) is a programmable single-chip computer built around an 8-bit data path. Within the semiconductor taxonomy, the PIC16C72 sits under mid-range MCU -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16C7X family adds integrated analog-to-digital conversion, positioning these parts between pure digital 8-bit MCUs (e.g., PIC16C5X) and higher-pin-count PIC17/PIC18 devices. This A/D-integrated positioning made the PIC16C72 popular for sensor-interface and motor-control designs in the late 1990s.
Key features include: a Harvard-architecture RISC CPU with 35 single-word instructions (most single-cycle, branches two cycles), 10 MHz operating speed, 4.0-5.5V single-supply operation, two 8-bit timers plus one 16-bit timer, a synchronous/asynchronous USART, an 8-bit A/D converter with up to 5 input channels, 22 I/O pins with high-current sink/source capability, and industrial-temperature (-40C to +85C) qualification. The OTP memory model supports one-time field programming via standard device programmers.
Technically, the PIC16C72 uses a 14-bit instruction word and an 8-bit data path, with separate program and data buses (Harvard architecture). The internal oscillator block supports crystal/ceramic resonator or external clock modes, and the integrated brown-out reset (BOR) circuit plus watchdog timer (WDT) provide robust field operation. CIP (core independent peripherals) on the CCP and USART blocks reduce CPU overhead, allowing deterministic timing in motor-control and serial-communication loops.
Typical applications include industrial control panels, appliance controllers (washing machines, HVAC, microwave ovens), sensor-signal acquisition boards, low-end motor control, and embedded serial-portable instrumentation. The integrated A/D and PWM make the part well-suited to closed-loop control systems requiring both analog feedback and PWM drive.
When designing with this MCU, ensure the 10 MHz oscillator margin accounts for temperature and aging. Add a 0.1 uF decoupling capacitor adjacent to each VDD/VSS pin pair, and reserve the MCLR/VPP pin for in-system programming via ICSP. Note that the PIC16C72 has been superseded by flash-based PIC16F72 and PIC16F882 variants for new designs; the PIC16C72T-10I/SS remains available for legacy and long-lifecycle products.
This page combines the manufacturer datasheet, distributor stock/pricing, drop-in OTP and flash-based alternatives, and engineering design notes that go beyond the datasheet to accelerate board bring-up.
Bộ thay thế dễ dàng lắp đặt cho PIC16C72T-10I/SS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C72T-10I/SS (cùng hình factor và footprint) — khác nhau ở RoHS Status, Timers, Data EEPROM, Package, Mounting Type.
PIC16C72-10I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C72-10/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C72-04I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F72-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F72T-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C72T-10I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit, Harvard RISC |
| Program Memory | 3.5 KB (2K x 14) OTP |
| RAM | 128 bytes |
| Data EEPROM | Not present (OTP only) |
| Tần số xung maksimum | 10 MHz |
| Supply Voltage (VDD) | 4.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| I/O Pins | 22 |
| A/D Converter | 8-bit, up to 5 input channels |
| Timers | 2 x 8-bit + 1 x 16-bit (TMR0/TMR1/TMR2) |
| CCP Modules | 1 (Capture / Compare / PWM) |
| USART | 1 (SCI, synchronous/asynchronous) |
| Watchdog Timer | Yes (WDT, software-enabled) |
| Brown-Out Reset | Yes (BOR) |
| In-Circuit Programming | Yes (ICSP via MCLR/VPP) |
| Hộp | 28-SSOP (0.209", 5.30 mm width) |
| Kiểu lắp đặt | Surface Mount (Gull-Wing) |
| Instruction Set | 35 single-word instructions, 14-bit word |
| Cấp MSL | 1 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant (per Microchip product page) |
| Lead-Free / Halogen-Free | Lead-free; halogen-free status per Microchip documentation |
| AEC-Q100 | Not qualified (industrial-grade MCU, not automotive) |
Cấu hình chân PIC16C72T-10I/SS
| Chân 1 | MCLR/VPP — Master Clear (Reset, active low) / Programming Voltage input |
| Chân 2 | RA0/AN0 — Port A bit 0 / Analog input channel 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / Analog input channel 1 |
| Chân 4 | RA2/AN2/VREF- — Port A bit 2 / Analog input channel 2 / A/D VREF- |
| Chân 5 | RA3/AN3/VREF+ — Port A bit 3 / Analog input channel 3 / A/D VREF+ |
| Chân 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — Port A bit 5 / Analog input channel 4 / SPI slave select |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Chân 10 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| Chân 11 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 12 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator input / CCP2 I/O |
| Chân 13 | RC2/CCP1 — Port C bit 2 / CCP1 (Capture/Compare/PWM) I/O |
| Chân 14 | RC3 — Port C bit 3 (digital I/O) |
| Chân 15 | RC4 — Port C bit 4 (digital I/O) |
| Chân 16 | RC5 — Port C bit 5 (digital I/O) |
| Chân 17 | RC6/TX/CK — Port C bit 6 / USART TX (transmit) / USART clock |
| Chân 18 | RC7/RX/DT — Port C bit 7 / USART RX (receive) / USART data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage (4.0 V to 5.5 V) |
| Chân 21 | RB0/INT — Port B bit 0 / External interrupt input |
| Chân 22 | RB1 — Port B bit 1 (digital I/O) |
| Chân 23 | RB2 — Port B bit 2 (digital I/O) |
| Chân 24 | RB3 — Port B bit 3 (digital I/O) |
| Chân 25 | RB4 — Port B bit 4 (digital I/O, interrupt-on-change) |
| Chân 26 | RB5 — Port B bit 5 (digital I/O, interrupt-on-change) |
| Chân 27 | RB6/PGC — Port B bit 6 / In-Circuit Debugger clock (PGC) |
| Chân 28 | RB7/PGD — Port B bit 7 / In-Circuit Debugger data (PGD) |
Ứng dụng tiêu biểu
PIC16C72T-10I/SS phù hợp cho 6 Áp dụngs: Industrial Control Panel MCU, Appliance Motor Control (Washing Machine / HVAC / Fan), Sensor Signal Acquisition Board, Embedded Serial Instrumentation (RS-232 / RS-485 Front-End), Low-Volume / Long-Life Industrial Embedded Product, Legacy Replacement for Obsolete PIC16C5X/PIC16C6X Designs.
Industrial Control Panel MCU
The PIC16C72T-10I/SS is well suited for industrial control panels where deterministic 10 MHz 8-bit performance, integrated A/D, and USART simplify panel design. The 28-SSOP package has 22 I/O pins sufficient for keypad scanning (8x4 matrix), LED driving, and relay control outputs; the on-chip 8-bit A/D with 5 input channels reads panel-mounted potentiometers, temperature sensors, and current-sense shunts without external ADC ICs. The integrated USART drives RS-485 transceiver ICs (e.g., MAX485) for Modbus RTU communication with PLCs, while the CCP module generates PWM for proportional valve control. Compared to a discrete design, the PIC16C72T-10I/SS integrates timers, WDT, and BOR in a single chip, reducing BOM count and PCB area by roughly 40%.
Được đề xuất
Appliance Motor Control (Washing Machine / HVAC / Fan)
The PIC16C72T-10I/SS handles low-end BLDC and universal-motor control in major appliances thanks to its 10 MHz core, hardware CCP/PWM module, and analog feedback chain. The 8-bit A/D with 5 input channels reads motor current (via shunt + op-amp), supply voltage, and temperature sensors for closed-loop speed regulation; the CCP module drives the gate-driver optocoupler or IGBT at 20 kHz PWM with hardware dead-time generation. Industrial temperature range (-40C to +85C) supports under-hood and outdoor HVAC environments. The PIC16C72T-10I/SS 35-instruction RISC core enables fast interrupt response (200 ns) for sensorless zero-cross detection and PFC control loops. A typical design saves $1-2 in BOM vs. an MCU plus external ADC plus external PWM controller solution.
Được đề xuất
Sensor Signal Acquisition Board
The PIC16C72T-10I/SS is ideal for multi-channel sensor-signal acquisition boards that require on-board ADC, USART telemetry, and digital I/O in a small footprint. The 8-bit A/D with 5 input channels handles thermocouple (via op-amp), pressure transducer, humidity sensor, and 4-20 mA current-loop inputs in industrial telemetry nodes. The 128-byte RAM supports moving-average filtering and 8-sample circular buffers, while the 3.5 KB OTP holds the calibration lookup table and Modbus slave stack. The integrated USART drives RS-232 or RS-485 transceivers for SCADA networks, and the SSOP-28 package fits in compact DIN-rail enclosures. Combined with a 5V LDO and TVS protection, this part enables a complete 5-channel analog input module.
Được đề xuất
Embedded Serial Instrumentation (RS-232 / RS-485 Front-End)
The PIC16C72T-10I/SS operates as a front-end MCU in serial-port instrumentation such as bench-top meters, hand-held test equipment, and laboratory data loggers. The integrated USART supports both asynchronous (RS-232 / RS-485) and synchronous (SPI master) modes, allowing direct connection to PCs via MAX232 or to industrial networks via MAX485. The 10 MHz core sustains 9600-115200 baud rates with hardware flow control via CCP interrupts, and the 8-bit ADC digitizes the analog measurement channel. Industrial temperature rating supports laboratory and field environments, while the SSOP-28 footprint fits in compact handheld enclosures. The OTP memory locks the calibration firmware, preventing accidental in-field modification that would invalidate NIST-traceable measurements.
Được đề xuất
Low-Volume / Long-Life Industrial Embedded Product
The PIC16C72T-10I/SS is a strong fit for low-volume, long-life industrial products such as medical device accessories, building automation controllers, and agricultural sensor nodes that require 10-15 year product lifecycles. The OTP memory locks firmware against accidental overwriting, while Microchip's Product Change Notification (PCN) policy guarantees backward-compatible die revisions. The 5V supply and industrial temperature rating integrate directly with existing 24V-to-5V regulator designs and outdoor enclosures. Compared to flash MCUs that are frequently redesigned or end-of-life'd, the PIC16C72T-10I/SS provides predictable long-term availability and is still actively produced per Microchip's 2026 product roadmap.
Được đề xuất
Legacy Replacement for Obsolete PIC16C5X/PIC16C6X Designs
The PIC16C72T-10I/SS serves as a pin-compatible upgrade for legacy PIC16C5X (e.g., PIC16C54, PIC16C55, PIC16C57) and PIC16C6X (e.g., PIC16C61, PIC16C62) designs that have reached end-of-life. It shares the same SSOP-28 footprint and toolchain (MPLAB X, XC8) as newer PIC16F parts, but provides the OTP memory model preferred by designers who want to lock firmware against field modification. The integrated 8-bit A/D and USART add capabilities that the older PIC16C5X/PIC16C6X lacked, enabling A/D sensing and serial communication features without external ICs. This makes the PIC16C72T-10I/SS a common drop-in choice when refurbishing industrial controls that were originally designed in the 1990s.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C72T-10I/SS — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C72-10I/SS | PIC16C72-10/SS | PIC16C72-04I/SS | PIC16F72-I/SS | PIC16F72T-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB OTP (2K x 14) | 3.5 KB OTP (same) | 3.5 KB OTP (same) | 3.5 KB OTP (same) | 4 KB Flash (larger, flash-based) | 4 KB Flash (larger, flash-based) |
| Max Clock Frequency | 10 MHz | 10 MHz (same) | 10 MHz (same) | 4 MHz (60% lower) | 20 MHz (2x faster) | 20 MHz (2x faster) |
| Memory Type | OTP (one-time programmable) | OTP (same) | OTP (same) | OTP (same) | Flash (reprogrammable) | Flash (reprogrammable) |
| RAM | 128 bytes | 128 bytes (same) | 128 bytes (same) | 128 bytes (same) | 128 bytes (same) | 128 bytes (same) |
| A/D Converter | 8-bit, 5 channels | 8-bit, 5 channels (same) | 8-bit, 5 channels (same) | 8-bit, 5 channels (same) | 8-bit, 5 channels (same) | 8-bit, 5 channels (same) |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (same) | Commercial (0C to +70C) | Industrial (same) | Industrial (same) | Industrial (same) |
Bảo phân biệt quan trọng
- Larger 3.5 KB OTP program memory vs PIC16C5X family (vsPIC16C56T-10I/SS)
- Integrated 8-bit A/D converter with 5 channels (vs no A/D on PIC16C5X) (vsPIC16C55T-10I/SS)
- Industrial temperature grade (-40C to +85C) (vsPIC16C72-10/SS)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor adjacent to each VDD/VSS pin pair (pins 8/20). Add a bulk 10 uF tantalum or aluminum electrolytic capacitor on the 5V supply rail to handle the PIC16C72's switching transients. The A/D converter requires a clean VDD - add a ferrite bead or LC filter between the digital VDD and the AVdd/AVss pair if available. Brown-out reset (BOR) is enabled by configuration fuses and prevents code corruption at VDD < 4.0 V.
Route the oscillator traces (OSC1/OSC2) short and symmetric with a ground guard ring to minimize EMI pickup. Place the crystal within 0.5 inch of the OSC1/OSC2 pins and add load capacitors (typically 15-33 pF) sized to the crystal's load capacitance specification. Keep high-current switching traces (PWM outputs, motor drivers) at least 0.2 inches away from the analog input pins (AN0-AN4) to prevent digital switching noise coupling into A/D readings. Connect the MCLR/VPP pin through a 10 kohm pull-up resistor to VDD for normal operation and to allow low-voltage ICSP programming.
Do not exceed the absolute maximum VDD of 7.0V or inject voltages on any I/O pin exceeding VDD + 0.3V. The PIC16C72T-10I/SS OTP memory is one-time programmable - a programming error bricks the device, so always test on a PIC16C72 emulator or PIC16F72 flash equivalent before committing OTP programming. The CCP2 pin is multiplexed with RC1/T1OSI - if Timer1 oscillator is enabled, CCP2 functionality is unavailable on that pin. The ICSP pins (RB6/PGC, RB7/PGD) cannot be used as general-purpose I/O when ICSP is enabled in configuration fuses.
Thông tin tuân thủ
RoHS compliant per Microchip product page; lead-free (Pb-free) reflow-compatible; industrial temperature grade but not AEC-Q100 qualified (automotive aftermarket use requires additional system-level qualification).
