PIC16F1823T-I/JQ - 8-bit MCU, 3.5KB Flash, 16-UQFN | Microchip
MPN: PIC16F1823T-I/JQ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.71 | $17.10 |
| 100 | $1.42 | $142.00 |
| 500 | $1.2 | $600.00 |
| 1,000 | $0.98 | $980.00 |
PIC16F1823T-I/JQ Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, peripherals, and I/O onto one die, enabling embedded control for sensor nodes, user interfaces, motor control, and standalone IoT edge devices. The PIC16F1823 belongs to the enhanced mid-range PIC16 family using a 14-bit instruction word and Harvard RISC architecture, supporting up to 200 ns instruction execution for deterministic real-time response in industrial control loops.
Key features include 12 I/O pins, 8-channel 10-bit ADC, two 8-bit timers plus one 16-bit timer, one Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), one Master Synchronous Serial Port (MSSP) supporting SPI and I2C, two analog comparators with selectable voltage reference, 4 PWM modules with auto-shutdown, and on-chip debug via ICD. The internal 16 MHz oscillator is factory calibrated to plus or minus 1 percent, eliminating the need for an external crystal in most designs and reducing both BOM cost and PCB area.
Typical applications span battery-powered sensor nodes, low-cost consumer appliances, automotive interior lighting controllers, USB-to-UART bridges (with MCP2200), LED drivers with hardware PWM, and capacitive-touch user interfaces. The wide 1.8-5.5 V range enables direct connection to single-cell Li-Ion, two-cell AA, and 3.3 V or 5 V regulated rails, eliminating level shifters on the supply path.
When designing with this device, route the exposed pad (EP) to a continuous ground plane for thermal dissipation and reduced EMI; failure to do so can degrade ADC SNR by several LSB. Select the correct oscillator configuration in CONFIG words; an uncalibrated HFINTOSC can pull frequency by 5-8 percent across temperature and break UART baud-rate timing at 115,200 baud.
Drop-in alternatives for PIC16F1823T-I/JQ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16F1823T-I/JQ (same form factor and footprint) β differing in Package, ADC, Operating Temperature, I/O Pins, Comparators.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1823-I/JQ
β Drop-Inβ In Stock
$0.85 / Unit
View Datasheet βPIC16F1823-E/JQ
β Drop-Inπ Reference alternative (not in catalog)
PIC16F18323T-I/JQ
β Drop-Inπ Reference alternative (not in catalog)
PIC16F18323-I/JQ
β Drop-Inπ Reference alternative (not in catalog)
PIC16F15325-I/JQ
β Drop-Inβ In Stock
$0.85 / Unit
View Datasheet βPIC16F1575T-I/JQ
β Drop-Inβ In Stock
$1.05 / Unit
View Datasheet βPIC16F1764T-I/ML
β Drop-Inβ In Stock
$0.58 / Unit
View Datasheet βPIC16F1823T-I/JQ Maximum Ratings & Electrical Characteristics
| Product Family | PIC16F182X enhanced mid-range |
| CPU Core | 8-bit PIC RISC (14-bit instruction) |
| Max Clock Speed | 32 MHz (200 ns instruction cycle) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data SRAM | 128 bytes |
| Data EEPROM | 256 bytes |
| I/O Pins | 12 |
| Operating Voltage | 1.8 V to 5.5 V |
| ADC | 8-channel, 10-bit |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Communication | 1 x EUSART, 1 x MSSP (SPI/I2C) |
| PWM Modules | 4 (10-bit resolution) |
| Comparators | 2 with selectable reference |
| Internal Oscillator | 16 MHz HFINTOSC, +/- 1% calibrated |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 16-UQFN (4x4x0.5 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Debug Support | On-chip ICD, PICkit 3 / MPLAB ICD 3 compatible |
| RoHS Status | Compliant |
PIC16F1823T-I/JQ Pin Configuration
| Pin 1 | RA5 β GPIO/AN4/CPS7/OSC1/CLKIN |
| Pin 2 | RA4 β GPIO/AN3/CPS6/T1G/OSC2/CLKOUT |
| Pin 3 | RA3 β GPIO/AN2/CPS5/VREF+/T1CKI/MCLR |
| Pin 4 | RC5 β GPIO/CCP1/P1A |
| Pin 5 | RC4 β GPIO/CPS11/SDI/SDA |
| Pin 6 | RC3 β GPIO/AN7/CPS9/C12IN2-/SDO |
| Pin 7 | RC2 β GPIO/AN6/CPS8/C12IN2-/P1D/SCK/SCL |
| Pin 8 | RC1 β GPIO/AN5/CPS7/C12IN1-/P1C/CCP2 |
| Pin 9 | RC0 β GPIO/AN4/CPS6/P1B/ICSPDAT |
| Pin 10 | RA2 β GPIO/AN2/CPS5/VREF-/DACOUT1/INT |
| Pin 11 | RA1 β GPIO/AN1/CPS4/VREF+/ICSPCLK/INT |
| Pin 12 | RA0 β GPIO/AN0/CPS0/C1IN+ |
| Pin 13 | VSS β Ground reference |
| Pin 14 | VDD β Positive power supply 1.8-5.5 V |
| Pin 15 | RA7 β GPIO/OSC1/CLKIN |
| Pin 16 | RA6 β GPIO/OSC2/CLKOUT |
Typical Applications
PIC16F1823T-I/JQ is suitable for 6 applications: Battery-Powered Wireless Sensor Node, LED Lighting Controller with PWM Dimming, Capacitive Touch User Interface Panel, Automotive Interior LED Driver, Low-Cost USB-to-UART Bridge, Industrial Sensor Conditioning Front-End.
Battery-Powered Wireless Sensor Node
The PIC16F1823T-I/JQ's nanoWatt XLP technology with typical sleep current below 50 nA and active current of 50 uA/MHz at 1.8 V enables multi-year battery life on a single CR2032 coin cell for periodic sensor sampling. The 8-channel 10-bit ADC digitizes analog sensor outputs (temperature, light, battery voltage) while the integrated 16 MHz HFINTOSC eliminates external crystal standby current. Its 12 I/O pins drive sensor enables, status LEDs, and interrupt inputs, while EUSART and MSSP support LoRa, BLE, or sub-GHz radio module interfaces for periodic transmit windows.
Recommended
LED Lighting Controller with PWM Dimming
The PIC16F1823T-I/JQ's 4 hardware PWM modules with 10-bit resolution and 32 MHz instruction clock enable smooth logarithmic dimming curves for white, RGB, and tunable-white LED arrays. The 16-UQFN compact footprint (4x4 mm) fits into lamp-driver PCBs where board area is constrained, while the wide 1.8-5.5 V supply range supports direct connection to 5 V or 12 V LED rails. PWM auto-shutdown on fault inputs protects LEDs from overcurrent events detected by external comparators feeding into the PIC interrupt controller.
Recommended
Capacitive Touch User Interface Panel
The PIC16F1823T-I/JQ's 12 I/O pins directly drive mTouch capacitive sense electrodes using the on-chip comparators with selectable voltage reference, eliminating dedicated touch ICs in small user interfaces. The 32 MHz CPU cycles sample electrodes in under 5 ms, achieving responsive haptic-grade touch latency, while the nanoWatt XLP sleep mode drops consumption to 50 nA between user touches. The 16-UQFN package's exposed pad (EP) provides solid ground reference for stable touch sensitivity across humidity and temperature variations.
Recommended
Automotive Interior LED Driver
The PIC16F1823T-I/JQ in its -40C to +85C industrial grade suits interior automotive applications such as dome light controllers, ambient mood lighting, and rear-light PWM sequencers. The MSSP peripheral supports SPI communication with body controllers, while the 4 PWM modules produce smoothly ramped fade-in/fade-out transitions. The 16-UQFN small outline aids integration behind dashboard panels, and on-chip EEPROM stores user-preset brightness/color profiles that survive ignition cycle power loss.
Recommended
Low-Cost USB-to-UART Bridge
The PIC16F1823T-I/JQ can implement a software USB-to-UART bridge using the MSSP for UART framing and bit-bang USB on two I/O pins, eliminating external bridge ICs like MCP2200 in cost-sensitive designs. The 32 MHz instruction clock sustains 12 Mbps USB full-speed polling, while the 128-byte SRAM buffer smooths data bursts between endpoints and the host. The 16-UQFN package fits inside USB Type-A and Type-C connector housings, with 1.8-5.5 V VDD directly compatible with USB 5 V bus power.
Recommended
Industrial Sensor Conditioning Front-End
The PIC16F1823T-I/JQ's 8-channel 10-bit ADC plus 2 analog comparators form a complete sensor conditioning front-end for industrial process monitoring of temperature, pressure, flow, and level signals. The MSSP in I2C mode reads calibration coefficients from external EEPROM, while PWM outputs drive 4-20 mA current loop converters or SSR drivers. The wide 1.8-5.5 V range operates from loop-powered 24 V systems stepped down via an LDO, with nanoWatt XLP modes handling brownout recovery without processor reset.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1823T-I/JQ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1823-I/JQ | PIC16F18323T-I/JQ | PIC16F15325-I/JQ | PIC16F1575T-I/JQ |
|---|---|---|---|---|---|
| Package | 16-UQFN (4x4 mm) | 16-UQFN - same | 16-UQFN - same | 16-UQFN - same | 16-UQFN - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 7 KB | 14 KB | 14 KB |
| Data SRAM | 128 bytes | 128 bytes | 512 bytes | 1 KB | 1 KB |
| ADC | 8-ch, 10-bit | 8-ch, 10-bit | 8-ch, 12-bit ADC2 | 8-ch, 10-bit | 8-ch, 10-bit |
| PWM Modules | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit | 5 x 10-bit | 4 x 16-bit |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Industry-leading nanoWatt XLP sleep current below 50 nA (vs PIC16F18323T-I/JQ)
- More Flash memory in same 16-UQFN footprint (vs PIC16F15325-I/JQ)
- High-accuracy internal HFINTOSC at +/- 1 percent (vs PIC16F1575T-I/JQ)
Design Notes
The 16-UQFN package exposes a thermal pad (EP, pin 17 in datasheet drawing) that MUST be soldered to a continuous ground plane for both thermal dissipation and electrical reference. Failure to connect the EP can degrade ADC SNR by 2-3 LSB and increase EMI emissions from the internal charge pump. Recommended layout: 5x5 thermal via array (0.3 mm drill, 0.5 mm pitch) under the EP tied to ground; this also reduces junction temperature by 15-20C at full 32 MHz operation.
Decouple VDD (pin 14) with a 100 nF X7R ceramic capacitor placed within 3 mm of the pin, plus a bulk 4.7 uF tantalum or aluminum-polymer capacitor on the same rail. The PIC16F1823 draws short 50 mA transient spikes during Flash programming; insufficient bulk capacitance causes VDD droop that triggers brown-out resets during ISP. For battery applications, add a 1 uF reservoir capacitor at the VDD pin to buffer the inrush of the internal DC-DC pump during ADC acquisition.
CONFIG1 register setting FOSC=0b100 selects HFINTOSC with the CLKOUT function disabled, which is the correct default for low-power designs; leaving CLKOUT enabled forces RA6 to source the system clock and prevents RA6 use as GPIO. The MCLR pin (RA3) must be tied to VDD through a 10 kOhm pull-up if external reset is desired; leaving MCLR disconnected allows noise to inject spurious resets. CONFIG2 LVP=1 enables low-voltage ICSP, but disables the on-chip debug (ICD) - set DEBUG=ON and LVP=OFF in production programming.
Estimated: at 32 MHz system clock with 4 PWM outputs switching simultaneously, the 16-UQFN package bond-wire inductance (typically 1-2 nH) couples approximately 50-100 mV of ground bounce into the VSS pin. To minimize this, place the 100 nF VDD bypass capacitor within 1 mm of pin 14 and use a 4-layer PCB with dedicated ground plane; signal integrity measurements show this reduces PWM-induced ADC noise by 30-40 percent. The MSSP SPI/IC2 lines benefit from 33 ohm series-termination resistors when driving cables or external connectors beyond 50 mm.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. Not AEC-Q100 qualified; choose PIC16F1823-E/JQ (extended temperature) or AEC-Q100 specific variants for automotive applications.
