PIC16F1933-I/SP - 7KB Flash 8-bit MCU 28-SPDIP | Microchip
MPN: PIC16F1933-I/SP ✓ Hoạt độngPIC16F1933-I/SP Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, on-board program memory, RAM, and integrated peripherals such as timers, ADC, and communication interfaces. MCUs sit within the broader category of embedded microcontrollers, which are subclasses of microprocessors with self-contained memory and I/O. The PIC16F1933 belongs to Microchip's XLP (eXtreme Low Power) family, which also nests under low-power MCUs, microcontrollers, embedded controllers, and finally semiconductors in the device taxonomy.
Key features include a 32MHz internal oscillator, integrated LCD driver supporting up to 96 segments, 11 channels of 10-bit ADC, multiple Enhanced USART, I²C, and SPI serial interfaces, and nanoWatt XLP technology for sub-microamp sleep currents. The device includes up to 25 I/O pins, four 8-bit timers plus one 16-bit timer, and a Capture/Compare/PWM module suitable for motor and lighting control.
Architecturally, the PIC16F1933 uses a RISC instruction set with 49 instructions, hardware stack, and a 14-bit instruction word. Its nanoWatt XLP technology enables sleep currents below 1 µA, making the device suited for battery-powered and energy-harvesting designs. The integrated LCD driver eliminates an external charge-pump or segment-driver ASIC in glass-display applications.
Typical applications include industrial control panels with character LCDs, consumer white goods with user interfaces, low-power sensor nodes, HVAC thermostats, and battery-powered instruments. The wide voltage range and integrated peripherals allow designers to consolidate multiple discrete components into a single chip.
When designing with the PIC16F1933, ensure that programming voltage and MCLR pin handling follow the datasheet's in-circuit serial programming procedure. Use a decoupling capacitor within 5mm of each VDD/VSS pair, and keep the 32kHz or high-frequency crystal traces short to minimise EMI.
This page synthesises distributor pricing, drop-in alternatives, and engineering design notes that complement the manufacturer datasheet, giving procurement and design engineers a single reference for evaluation and sourcing.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1933-I/SP — 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 PIC16F1933-I/SP (cùng hình factor và footprint) — khác nhau ở Package, LCD Driver, Timers, ADC, Core Architecture.
PIC16F1933-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1933T-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1934-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1936-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1937-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1933-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1933-I/SP Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC RISC |
| Program Flash Memory | 7KB (4K x 14 words) |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| Instruction Set Width | 14-bit |
| Number of Instructions | 49 |
| Tần số xung maksimum | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Nhiệt độ hoạt động | -40 °C to +85 °C (Industrial) |
| I/O Pins | Up to 25 |
| ADC | 11-channel 10-bit |
| LCD Driver | Up to 96 segments |
| Timers | 4 x 8-bit + 1 x 16-bit |
| Serial Interfaces | EUSART, I²C, SPI |
| Hộp | 28-pin SPDIP (Skinny PDIP) |
| Kiểu lắp đặt | Through-Hole |
| Technology | nanoWatt XLP |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F1933-I/SP
| Chân 1 | RA3/AN3/VREF+/SEG15 — Bidirectional I/O / ADC input / positive voltage reference / LCD segment |
| Chân 2 | RA4/AN4/C2OUT/SEG14 — Bidirectional I/O / ADC input / comparator output / LCD segment |
| Chân 3 | RA5/MCLR/VPP — Bidirectional I/O / Master Clear reset (active low) / programming voltage |
| Chân 4 | RA6/OSC2/CLKOUT — Bidirectional I/O / crystal oscillator output / clock output |
| Chân 5 | RA7/OSC1/CLKIN — Bidirectional I/O / crystal oscillator input / external clock input |
| Chân 6 | VSS — Ground reference |
| Chân 7 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Chân 8 | RB0/AN12/INT/SEG0 — Bidirectional I/O / ADC input / external interrupt / LCD segment |
| Chân 9 | RB1/AN10/C1OUT/SEG1 — Bidirectional I/O / ADC input / comparator output / LCD segment |
| Chân 10 | RB2/AN8/CPS — Bidirectional I/O / ADC input / capacitive touch sensing input |
| Chân 11 | RB3/AN9/CPS — Bidirectional I/O / ADC input / capacitive touch sensing input |
| Chân 12 | RB4/AN11/CPS — Bidirectional I/O / ADC input / capacitive touch sensing input |
| Chân 13 | RB5/AN13/CPS — Bidirectional I/O / ADC input / capacitive touch sensing input |
| Chân 14 | RB6/ICSPCLK/ICDCLK — Bidirectional I/O / in-circuit serial programming clock / debug clock |
| Chân 15 | RB7/ICSPDAT/ICDDAT — Bidirectional I/O / in-circuit serial programming data / debug data |
| Chân 16 | VSS — Ground reference |
| Chân 17 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Chân 18 | RC0/SOSCO — Bidirectional I/O / secondary oscillator output (32 kHz crystal) |
| Chân 19 | RC1/SOSCI — Bidirectional I/O / secondary oscillator input (32 kHz crystal) |
| Chân 20 | RC2/AN14/SEG2 — Bidirectional I/O / ADC input / LCD segment |
| Chân 21 | RC3/AN15/SEG3 — Bidirectional I/O / ADC input / LCD segment |
| Chân 22 | RC4/AN16/SEG4 — Bidirectional I/O / ADC input / LCD segment |
| Chân 23 | RC5/AN17/SEG5 — Bidirectional I/O / ADC input / LCD segment |
| Chân 24 | RC6/AN18/SEG6/TX/CK — Bidirectional I/O / ADC input / LCD segment / USART transmit / I²C clock |
| Chân 25 | RC7/AN19/SEG7/RX/DT — Bidirectional I/O / ADC input / LCD segment / USART receive / I²C data |
| Chân 26 | RA0/AN0/C12IN0-/SEG12 — Bidirectional I/O / ADC input / comparator input / LCD segment |
| Chân 27 | RA1/AN1/C12IN1-/SEG13 — Bidirectional I/O / ADC input / comparator input / LCD segment |
| Chân 28 | RA2/AN2/VREF-/SEG16 — Bidirectional I/O / ADC input / negative voltage reference / LCD segment |
Ứng dụng tiêu biểu
PIC16F1933-I/SP phù hợp cho 7 Áp dụngs: Industrial Control Panel with LCD, Battery-Powered Sensor Node, HVAC Thermostat, Consumer White-Good User Interface, Portable Medical Monitoring Device, Automotive Aftermarket Accessory, Smart Energy Meter.
Industrial Control Panel with LCD
The PIC16F1933-I/SP is an excellent fit for industrial control panels featuring character or segment LCDs because its integrated 96-segment LCD driver eliminates external charge-pump or segment-driver ICs, directly reducing BOM cost and PCB area. The 11-channel 10-bit ADC simultaneously reads panel-mounted temperature, pressure, and current sensors, while the 32MHz internal oscillator with ±1% accuracy across 1.8V-5.5V drives the EUSART for Modbus RTU without an external crystal. The industrial -40°C to +85°C operating range plus 256B EEPROM with 1M-cycle endurance make it durable for factory-floor HMIs that must survive years of configuration writes.
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Battery-Powered Sensor Node
Battery-powered wireless sensor nodes benefit from the PIC16F1933-I/SP's nanoWatt XLP technology with sleep currents below 1µA, combined with the 1.8V minimum supply that supports direct connection to 2xAA alkaline or single-cell Li-ion chemistries. The 32MHz internal oscillator allows the EUSART to wake briefly, transmit sensor readings, and return to sleep, while the 11-channel 10-bit ADC accommodates multiple sensor inputs (temperature, humidity, light) on a single chip. The 256B EEPROM stores calibration constants and node identifiers that survive battery swaps without re-flashing.
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HVAC Thermostat
The PIC16F1933-I/SP suits residential and commercial HVAC thermostats because its integrated 96-segment LCD driver displays temperature setpoints, schedules, and status icons without external components, while the 11-channel ADC reads multiple thermistor inputs for indoor, outdoor, and supply-air sensing. The EUSART and I²C peripherals communicate with Wi-Fi or Zigbee co-processors for smart-thermostat connectivity. The wide 1.8V-5.5V supply allows direct operation from 24VAC HVAC bus via a small rectifier plus 3.3V LDO, simplifying retrofit installations.
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Consumer White-Good User Interface
Washing machines, dishwashers, ovens, and microwaves use the PIC16F1933-I/SP to drive segment-LCD front panels and capacitive-touch keypads. The Capture/Compare/PWM module controls motor speed, valve actuation, and buzzer feedback, while the integrated LCD driver supports multi-digit temperature and time displays. The 256B EEPROM stores user preferences, error logs, and last-cycle state across power cycles. The industrial temperature grade (-40°C to +85°C) tolerates the heat inside appliance cabinets.
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Portable Medical Monitoring Device
Portable medical devices such as glucose meters, pulse oximeters, and INR monitors benefit from the PIC16F1933-I/SP's low-power sleep modes and integrated LCD driver that displays readings without external components. The 11-channel 10-bit ADC reads optical absorbance sensors (pulse oximeter) or electrochemical test strips (glucose meter), while the 256B EEPROM stores calibration curves and last-N readings. The wide 1.8V-5.5V supply supports coin-cell or Li-ion battery chemistries for weeks of continuous monitoring.
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Automotive Aftermarket Accessory
Automotive aftermarket accessories such as gauge clusters, shift-light controllers, and turbo timers use the PIC16F1933-I/SP's 11-channel 10-bit ADC to monitor 0-5V sensor signals (boost pressure, oil temperature, exhaust gas temperature) and drive segment-LCD or LED displays. The Capture/Compare/PWM module drives relays and warning buzzers based on programmable thresholds stored in the 256B EEPROM. While the part itself is industrial-grade (-40°C to +85°C), automotive underhood designs should derate or upgrade to an AEC-Q100 qualified PIC16F variant.
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Smart Energy Meter
Single-phase smart energy meters use the PIC16F1933-I/SP's 11-channel ADC together with the EUSART to compute RMS voltage and current from front-end CTs and shunt resistors, then drive a 96-segment LCD for cumulative kWh and instantaneous power displays. The 256B EEPROM retains meter calibration across power cycles, while the wide 1.8V-5.5V operating range supports direct connection to a 3.6V Li-SOCl2 battery for backup metering during outages. Microchip's MPLAB X IDE and energy-meter reference firmware accelerate time-to-market.
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Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1933-I/SP — 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 | PIC16F1933-I/SS | PIC16F1934-I/SP | PIC16F1936-I/SP | PIC16F1937-I/SP | PIC16LF1933-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SSOP (different footprint, surface-mount) | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Flash Memory | 7KB | 7KB (identical) | 7KB (identical) | 14KB | 14KB | 7KB (identical) |
| RAM | 256B | 256B (identical) | 256B | 512B | 512B | 256B (identical) |
| EEPROM | 256B | 256B (identical) | 256B (identical) | 256B (identical) | 256B (identical) | 256B (identical) |
| Supply Voltage | 1.8V to 5.5V | 1.8V to 5.5V (identical) | 1.8V to 5.5V (identical) | 1.8V to 5.5V (identical) | 1.8V to 5.5V (identical) | 1.8V to 3.6V (low-voltage variant) |
| LCD Segments | Up to 96 | Up to 96 (identical) | Up to 96 (identical) | Up to 96 (identical) | Up to 96 (identical) | Up to 96 (identical) |
| ADC Channels | 11 x 10-bit | 11 x 10-bit (identical) | 11 x 10-bit (identical) | 11 x 10-bit (identical) | 11 x 10-bit (identical) | 11 x 10-bit (identical) |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C (identical) | -40°C to +85°C (identical) | -40°C to +85°C (identical) | -40°C to +85°C (identical) | -40°C to +85°C (identical) |
Bảo phân biệt quan trọng
- Integrated 96-segment LCD driver (vsPIC16F877A-I/SP)
- nanoWatt XLP ultra-low sleep current (vsPIC16F877A-I/SP)
- Pin-compatible memory upgrades within the family (vsPIC16F1936-I/SP)
Ghi chú thiết kế
Use a 100nF decoupling capacitor within 5mm of each VDD/VSS pair, plus a bulk 10µF tantalum or ceramic capacitor on the main 3.3V or 5V rail. The PIC16F1933-I/SP can wake from sleep in <1µs, so power-rail settling time is rarely a constraint. For battery designs, place the MCU on the highest-impedance rail branch to maximise sleep current savings.
Keep the MCLR/VPP trace short and isolated from switching signals; place the MCLR pull-up resistor (typically 10kΩ) as close to the pin as practical. For In-Circuit Serial Programming (ICSP), dedicate the RB6/ICSPCLK and RB7/ICSPDAT pins to a 6-pin header; do not place series resistors in these traces or programming will fail. If the crystal or external oscillator is used, route traces symmetrically with a ground guard ring.
Do not exceed the absolute maximum VDD of 7.0V; the datasheet's 5.5V rating includes transient headroom only. When migrating from PIC16F1933 to PIC16F1936 or PIC16F1937 (double Flash/RAM), regenerate the linker map against the new memory layout; simply re-flashing the same HEX file will produce undefined behaviour. Always read the device ID register (DevID at 0x8006) at startup for firmware sanity-checking.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page; PIC16F1933-I/SP is industrial-grade (-40°C to +85°C) and is not AEC-Q100 qualified for automotive underhood applications.
