PIC16CR73T-I/ML - 7KB ROM 8-Bit MCU 28-VQFN | Microchip
MPN: PIC16CR73T-I/ML ✓ فعالPIC16CR73T-I/ML جائزہ
An 8-bit microcontroller (MCU) is a self-contained computing device integrating a CPU, RAM, ROM/Flash, timers, ADC, and digital I/O on a single silicon die. The PIC16C7x family uses Microchip's enhanced RISC architecture with a modified Harvard memory layout, executing one instruction per clock cycle (except branches) for predictable deterministic timing. The PIC16CR73 specifically targets cost-sensitive ROM-based high-volume designs, where the program image is mask-programmed at the factory and cannot be field-updated. The 'R' suffix distinguishes ROM parts from the flash-based PIC16F73, while 'C' indicates the CMOS process family.
Key features include 22 digital I/O pins, three timers (Timer0, Timer1, Timer2), a 5-channel 8-bit ADC, USART with 9-bit address detection, I2C/SPI master-slave synchronous port, and a 200ns instruction cycle at 20MHz. Capture/Compare/PWM (CCP) module provides 10-bit PWM output for motor and lighting control, while the watchdog timer with on-chip RC oscillator enhances system reliability without external components.
The architecture is built on Microchip's mature CMOS process with low-power nanopower variants. The Harvard split-bus design allows simultaneous instruction fetch and data access, and the 14-bit instruction word provides rich addressing with 35 single-word instructions. The device supports in-circuit serial programming (ICSP) for factory ROM variants and offers robust EMI/ESD performance typical of PIC mid-range devices.
Typical applications include industrial control panels, HVAC blower controllers, appliance user-interface boards, automotive body controllers, battery chargers, and sensor-conditioning front ends. The wide 2.5V to 5.5V operating range suits both 3.3V and 5V system rails, and the ROM-based architecture fits high-volume products where the firmware is stable and unit cost is critical.
When designing with the PIC16CR73T-I/ML, ensure the exposed pad of the 28-VQFN package is soldered to a sufficient copper thermal pour (at least 1 sq inch) to maintain junction temperature within the -40C to +85C industrial range. Because this is a ROM part, firmware changes require a new mask spin, so use the flash-based PIC16F73T-I/ML for prototype development and switch to the CR73 only after firmware is locked.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل PIC16CR73T-I/ML — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16CR73T-I/ML (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Operating Temperature, Package, Program Memory Type, RoHS Status, Maximum Clock Speed.
PIC16F73T-I/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16CR73-I/ML
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C73B-04I/ML
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C73A-10I/ML
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C73B-04I/SP
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16CR73T-I/ML زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Architecture | 8-bit CMOS RISC (PIC16 mid-range) |
| Program Memory | 7 KB ROM (mask-programmed) |
| RAM | 192 bytes |
| Data EEPROM | Not present |
| I/O Pins | 22 |
| Maximum Clock Speed | 20 MHz |
| Instruction Cycle | 200 ns at 20 MHz |
| Operating Voltage Range | 2.5 V to 5.5 V |
| ADC | 5 channels, 8-bit resolution |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Capture/Compare/PWM | 1 CCP module, 10-bit PWM |
| Communication Peripherals | USART (SCI), I2C/SPI (SSP) |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| پیکیج | 28-pin VQFN (ML) with exposed thermal pad |
| آپریٹنگ درجہ حرارت | -40 C to +85 C (Industrial) |
| In-Circuit Programming | ICSP (factory ROM variant) |
| RoHS اسٹیٹس | Compliant |
PIC16CR73T-I/ML پن کنفیگریشن
| پن 1 | MCLR — Master Clear (reset) input, active low |
| پن 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| پن 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| پن 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| پن 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC reference plus |
| پن 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پن 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| پن 8 | VSS — Ground reference |
| پن 9 | OSC1/CLKIN — Oscillator input / external clock |
| پن 10 | OSC2/CLKOUT — Oscillator output |
| پن 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / clock in |
| پن 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| پن 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| پن 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پن 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پن 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| پن 17 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| پن 18 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| پن 19 | VSS — Ground reference |
| پن 20 | VDD — Positive supply 2.5V to 5.5V |
| پن 21 | RB0/INT — PORTB bit 0 / external interrupt |
| پن 22 | RB1 — PORTB bit 1 |
| پن 23 | RB2 — PORTB bit 2 |
| پن 24 | RB3 — PORTB bit 3 |
| پن 25 | RB4 — PORTB bit 4 |
| پن 26 | RB5 — PORTB bit 5 |
| پن 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| پن 28 | RB7/PGD — PORTB bit 7 / ICSP data |
عام استعمالات
PIC16CR73T-I/ML کے لیے موزوں ہے 7 ایپلیکیشنs: Industrial Control Panels, HVAC Blower and Fan Controllers, Appliance User-Interface Boards, Automotive Body Controllers, Battery Chargers and Power Conditioning, Sensor Conditioning Front Ends, Smart Home Sensor Hubs.
Industrial Control Panels
The PIC16CR73T-I/ML's 22 I/O pins and 5-channel ADC make it a strong fit for industrial control panels driving LED indicators, scanning keypads, and reading analog sensor inputs. The 8-bit core at 20 MHz provides ample throughput for scan-loop timing, while the wide 2.5V to 5.5V supply range supports both 5V and 3.3V panel designs. The CCP module generates 10-bit PWM outputs for backlight dimming, and the watchdog timer with on-chip RC oscillator maintains system integrity in electrically noisy factory environments.
تجویز کردہ
HVAC Blower and Fan Controllers
The PIC16CR73T-I/ML is well-suited to HVAC blower and fan controllers that require closed-loop RPM control via PWM and analog tachometer feedback. The 8-bit ADC reads air-temperature sensors while the CCP module drives a TRIAC or MOSFET gate through an opto-isolated driver. Industrial -40C to +85C temperature rating handles attic and outdoor installations, and the ROM-based architecture is ideal for stable firmware shipping in tens of thousands of units per HVAC season.
تجویز کردہ
Appliance User-Interface Boards
The PIC16CR73T-I/ML fits appliance user-interface boards (washing machines, dishwashers, microwave ovens) where it scans capacitive touch keys, drives 7-segment LED displays, and reads temperature sensors via the on-chip ADC. The 22 I/O pins support multiplexed display driving without external logic, and the industrial temperature rating handles under-cabinet thermal conditions. Cost-sensitive high-volume appliance production makes the ROM-based PIC16CR73 more economical than flash equivalents above 10k unit volumes.
تجویز کردہ
Automotive Body Controllers
The PIC16CR73T-I/ML integrates body-controller functions such as interior lighting PWM dimming, door-switch debouncing, and rear-defogger timing. The 22 I/O source/sink 25 mA per pin to drive automotive lamps and relays directly without external buffers. The USART links to a central body-control module, and the ADC reads battery voltage for load-shedding decisions. Although the CR73 is not AEC-Q100 qualified, the wide -40C to +85C industrial range suits under-dash automotive environments.
تجویز کردہ
Battery Chargers and Power Conditioning
The PIC16CR73T-I/ML controls sealed-lead-acid or NiMH battery chargers using its ADC to monitor charge current and battery voltage, while the CCP module drives a switching-FET gate for CC/CV regulation. The USART reports charge state to a host display, and the watchdog timer protects against firmware lock-up in unattended charger installations. ROM-based cost benefits suit OEM charger modules shipping 50k+ units per quarter in cordless tool and consumer-electronics markets.
تجویز کردہ
Sensor Conditioning Front Ends
The PIC16CR73T-I/ML acts as a sensor-conditioning front end for thermistor bridges, photodiodes, and strain gauges in instrumentation. The 8-bit ADC samples at up to 100 ksps, and the on-chip USART streams processed data to a host controller. Industrial temperature stability and low electromagnetic emissions suit medical and laboratory instruments where the ROM-based cost saving adds up across multi-channel sensor modules deployed in volume.
تجویز کردہ
Smart Home Sensor Hubs
The PIC16CR73T-I/ML supports compact smart-home sensor hubs (PIR motion, door/window contact, leak detectors) where it scans low-power sensors and reports events via a simple SPI/I2C link to a wireless co-processor. The 5-channel ADC reads battery voltage, light level, and humidity, while the deep-sleep mode and watchdog timer minimize idle current. ROM-based cost benefits enable sub-USD 3 BOM on shipped sensor modules.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16CR73T-I/ML — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F73T-I/ML | PIC16CR73-I/ML | PIC16C73B-04I/ML | PIC16C73A-10I/ML | PIC16C73B-04I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-VQFN (ML) | 28-VQFN (ML) - same | 28-VQFN (ML) - same | 28-VQFN (ML) - same | 28-VQFN (ML) - same | 28-VQFN (ML) - same |
| Program Memory Type | 7 KB ROM | 7 KB Flash | 7 KB ROM | 4 KB OTP EPROM | 4 KB OTP EPROM | 4 KB OTP EPROM |
| Maximum Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz (4 MHz OTP rated) | 20 MHz (10 MHz OTP rated) | 20 MHz (4 MHz OTP rated) |
| I/O Pins | 22 | 22 | 22 | 22 | 22 | 22 |
| ADC Channels / Resolution | 5 ch / 8-bit | 5 ch / 8-bit | 5 ch / 8-bit | 5 ch / 8-bit | 5 ch / 8-bit | 5 ch / 8-bit |
| Operating Voltage | 2.5 V to 5.5 V | 2.0 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Field Firmware Update | No (mask ROM) | Yes (ICSP flash) | No (mask ROM) | No (one-time programmable) | No (one-time programmable) | No (one-time programmable) |
اہم امتیازی خصوصیات
- Mask-programmed ROM for lowest per-unit cost (بمقابلہPIC16F73T-I/ML)
- Direct drop-in upgrade path to flash during development (بمقابلہPIC16F73T-I/ML)
- Wider 20 MHz top frequency than earlier 73A/73B variants (بمقابلہPIC16C73A-10I/ML)
ڈیزائن نوٹس
Solder the exposed thermal pad of the 28-VQFN (ML) package to a PCB ground-pour of at least 1 square inch to keep junction temperature within the -40C to +85C industrial range. Without adequate copper, the pad dissipates poorly and ambient temperature derating becomes severe above 60C. For higher-power designs, increase the copper pour area or add thermal vias connecting to inner ground planes.
Place the decoupling capacitor (100 nF ceramic) within 5 mm of the VDD pin (pin 20), and add a bulk 10 uF tantalum or ceramic capacitor near the device. Keep the crystal or resonator traces to OSC1/OSC2 short and surrounded by a ground guard ring to reduce EMI. The MCLR pin requires a 10 kohm pull-up to VDD for normal operation; add a 100 nF cap to ground for brown-out reset if needed.
Do not exceed 5.5V on any pin or 5.5V on VDD - the PIC16CR73 is not 5V-tolerant on analog pins beyond VDD. Ensure unused I/O pins are configured as outputs and tied low (not left floating) to minimize current consumption and EMI. Because this is a mask-ROM part, the firmware image must be finalized before mask submission - use PIC16F73T-I/ML for all prototype and pre-production builds.
Route the ICSP clock (PGC, RB6) and ICSP data (PGD, RB7) traces to test points or an in-line header for factory programming and field debug. Keep these traces short and avoid running them parallel to switching-power traces to prevent coupling during in-circuit programming. For 20 MHz operation, the oscillator start-up time depends on crystal Q and load capacitance - use the Microchip PICmicro Mid-Range Reference Manual to select the correct HS oscillator configuration bits.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - the -I suffix confirms industrial temperature grade (-40C to +85C) but not automotive qualification. Conflict-mineral compliance statement available from Microchip on request.
