PIC16F1823T-I/ST - 8-bit MCU 3.5KB Flash 14-TSSOP | Microchip
MPN: PIC16F1823T-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.74 | $1.74 |
| 10 | $1.55 | $15.50 |
| 100 | $1.32 | $132.00 |
| 500 | $1.15 | $575.00 |
| 1,000 | $1.02 | $1,020.00 |
PIC16F1823T-I/ST Overview
An 8-bit microcontroller (MCU) is a single-chip computer optimized for embedded control tasks, integrating a CPU, non-volatile program memory, RAM, peripherals, and I/O on one die. Within the semiconductor taxonomy, an MCU sits below microprocessor and above discrete logic, and the PIC16 family occupies the mid-range 8-bit niche defined by a 14-bit instruction word and RISC pipeline. XLP technology then adds deep-sleep current in the tens of nanoampere range, enabling battery-sourced products to run for years on a single cell.
Key features of the PIC16F1823T-I/ST include active current consumption in the microampere range at full 32 MHz operation, sub-microampere sleep current, an MI2C/SPI/I2C peripheral set, on-chip mTouch capacitive sensing hardware, and a CTMU charge-time measurement unit for temperature, capacitive touch, and time-of-flight measurements. The internal 32 MHz oscillator removes the need for an external crystal in most designs, simplifying BOM and reducing PCB area.
The device is fabricated on a low-power CMOS process and uses a modified Harvard architecture with a 14-bit instruction word. Core peripherals include a 10-bit ADC up to 8 channels, enhanced PWM, configurable logic cells, and a peripheral pin select (PPS) module that remaps digital peripherals to any I/O, giving layout engineers full freedom on 14 pins.
Typical applications include battery-powered sensor nodes, IoT edge nodes, low-power remote controls, LED lighting controllers, capacitive touch user interfaces, and consumer white goods. Designers choose this part when small package, low quiescent current, and flexible peripheral routing matter more than raw CPU throughput.
When designing with the PIC16F1823, ensure Vdd decoupling with a 100 nF ceramic capacitor within a few millimeters of the pin, and follow Microchip's ICSP guidelines if in-circuit programming is required. Note that the 'T' suffix denotes tape-and-reel packaging, 'I' denotes the -40C to +85C industrial temperature grade, and 'ST' indicates the 14-pin TSSOP.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet.
Drop-in alternatives for PIC16F1823T-I/ST — 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/ST (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Program Memory (Flash), Data EEPROM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1823-I/ST
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F1823-E/ST
✅ Drop-In✓ In Stock
$0.82 / Unit
View Datasheet →PIC16LF1823-I/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1705T-I/ST
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16F1575-I/ST
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC16F1823T-I/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 enhanced mid-range (14-bit instruction word, RISC) |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 128 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Instruction Cycle Time | 200 ns at 20 MHz; 62.5 ns at 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 12 |
| Internal Oscillator | 32 MHz, factory calibrated |
| ADC | 10-bit, up to 8 channels, with computation |
| PWM Modules | Enhanced PWM, multiple outputs |
| Communication | I2C/SPI/USART (EUSART) |
| Special Peripherals | mTouch capacitive touch, CTMU, peripheral pin select (PPS) |
| Package | 14-TSSOP (ST), 4.4 mm body width |
| Operating Temperature | -40 C to +85 C (industrial, 'I' grade) |
| Technology | nanoWatt XLP eXtreme Low Power CMOS |
| Programming | ICSP (In-Circuit Serial Programming), low and high voltage |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F1823T-I/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage |
| Pin 2 | RA5 — Digital I/O / ICSPDAT / SS |
| Pin 3 | RA4 — Digital I/O / CLKOUT |
| Pin 4 | RA3/MCLR — Digital I/O / Master Clear (reset) |
| Pin 5 | RC5 — Digital I/O / CCP1 |
| Pin 6 | RC4 — Digital I/O / C2OUT |
| Pin 7 | RC3 — Digital I/O / SCL |
| Pin 8 | RC6 — Digital I/O / TX/CK |
| Pin 9 | RC7 — Digital I/O / RX/DT |
| Pin 10 | RB7 — Digital I/O / P1D |
| Pin 11 | RB6 — Digital I/O / P1C |
| Pin 12 | RB5 — Digital I/O / AN11 |
| Pin 13 | RB4 — Digital I/O / AN10 |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F1823T-I/ST is suitable for 7 applications: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, LED Lighting Controller, Low-Power Remote Control, Industrial Sensor Transmitter, Consumer White Goods Control, Automotive Body Electronics.
Battery-Powered IoT Sensor Node
The PIC16F1823T-I/ST fits battery-powered IoT sensor nodes because its nanoWatt XLP sleep current drops below 50 nA, while the integrated 32 MHz internal oscillator eliminates external crystals. Designers wire it to a sensor via the 10-bit ADC and ADC-with-computation mode, then wake the part on a periodic interrupt to read and return to sleep. The 1.8 V to 5.5 V Vdd range supports single-cell Li-ion, 2xAA, or coin-cell operation, and the 14-TSSOP package is small enough for coin-cell form factors.
Recommended
Capacitive Touch User Interface
The PIC16F1823T-I/ST is ideal for capacitive touch keypads thanks to its on-chip mTouch peripheral and CTMU charge-time measurement unit, which together implement up to 12 touch buttons without external circuitry. The 32 MHz CPU can sample the touch matrix faster than 100 Hz per channel, and the 10-bit ADC with computation offloads filter and threshold logic to hardware. Low sleep current keeps battery-powered remotes and door locks alive for years.
Recommended
LED Lighting Controller
The PIC16F1823T-I/ST drives multi-channel LED strings via its enhanced PWM modules with configurable frequency and resolution, allowing smooth dimming from 0 to 100%. The 32 MHz core executes dimming algorithms and color-mixing math without breaking a sweat, and the wide Vdd range simplifies direct driving from 3.3 V or 5 V rails. Designers use the CTMU and ADC for ambient-light feedback and temperature fold-back, closing the loop on a smart lighting fixture.
Recommended
Low-Power Remote Control
The PIC16F1823T-I/ST suits handheld remote controls because its XLP sleep mode draws under 50 nA, allowing coin-cell-powered remotes to last for years. The integrated 32 MHz internal oscillator and 10-bit ADC with computation handle IR or RF transmission and battery-voltage monitoring without external components. Peripheral pin select (PPS) lets designers route the UART to any GPIO, easing PCB layout of compact remote enclosures.
Recommended
Industrial Sensor Transmitter
The PIC16F1823T-I/ST is well-suited to industrial 4-20 mA loop or wireless sensor transmitters because its 5.5 V max Vdd is compatible with 24 V industrial rails after regulation, and its -40C to +85C industrial temperature grade handles factory-floor environments. The 10-bit ADC with computation offloads calibration and linearization, while the I2C/SPI/USART peripherals drive external DACs or transceivers. The 14-TSSOP package is small enough to fit inside standard M12 sensor heads.
Recommended
Consumer White Goods Control
The PIC16F1823T-I/ST fits low-cost consumer white goods such as coffee machines, blenders, or air purifiers where cost-sensitive controllers handle user input, sensor reading, and motor or heater switching. The PWM modules drive triacs or relays via optocouplers, while the EUSART links to displays or wireless modules. nanoWatt XLP standby keeps wall-powered appliances within stringent energy-consumption regulations such as Energy Star.
Recommended
Automotive Body Electronics
The PIC16F1823T-I/ST can serve in non-safety automotive body modules such as interior lighting, seat controllers, or mirror adjusters, where its industrial -40C to +85C grade tolerates cabin temperatures. The 32 MHz core runs CAN or LIN stacks at standard bit rates, and the 10-bit ADC reads position sensors and switches. Designers use the extended -40C to +125C 'E' variant for under-hood or door-module placement.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1823T-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1823-I/ST | PIC16F1823-E/ST | PIC16F1705T-I/ST | PIC16F1575-I/ST | PIC16LF1823-I/ST |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-TSSOP (ST) | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same | 14-TSSOP (ST) - same |
| Flash Program Memory | 3.5 KB | 3.5 KB | 3.5 KB | 8 KB | 14 KB | 3.5 KB |
| Data SRAM | 128 B | 128 B | 128 B | 512 B | 1 KB | 128 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage Range | 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 | 1.8 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
| Special Peripherals | mTouch, CTMU, PPS | mTouch, CTMU, PPS | mTouch, CTMU, PPS | CWG, NCO, mTouch | 16-bit PSMC PWM | mTouch, CTMU, PPS |
Key Differentiators
- Lowest sleep current in its 14-pin TSSOP class (vs PIC16F1705T-I/ST)
- Built-in mTouch and CTMU peripherals (vs PIC16F1575-I/ST)
- 5.5 V wide Vdd range (vs PIC16LF1823-I/ST)
Design Notes
Estimated: at Vdd = 3.3 V, the PIC16F1823 active current at 32 MHz is roughly 4-6 mA, while XLP sleep current is under 50 nA. Place a 100 nF ceramic decoupling capacitor within 3 mm of the Vdd pin (pin 1) and a bulk 10 uF cap on the rail if the source impedance is high. For battery-powered designs, route the MCLR pin through a 10 kohm pull-up to avoid spurious resets that drain batteries.
At typical 5 V operation, the PIC16F1823T-I/ST dissipates around 30 mW of heat, well within the 14-TSSOP package's 100 C/W thermal resistance. Designers do not need a heatsink; however, ensure ambient temperature stays inside the industrial -40C to +85C window specified by the 'I' suffix. For applications above +85C, choose the 'E' extended grade (-40C to +125C).
The 14-TSSOP package has a 0.65 mm pitch, which requires a fine-pitch reflow stencil (0.15-0.20 mm apertures). Keep the ICSP signals (ICSPCLK on RB6, ICSPDAT on RB7) on a separate test-pad footprint for production programming. Pull ICSPCLK low with a 10 kohm resistor to prevent floating during normal operation.
Do not leave MCLR floating - either tie it to Vdd through a 10 kohm resistor or wire it to a supervisor/reset circuit. Avoid using the internal 32 MHz oscillator with I2C at speeds above 400 kHz without enabling the PLL or a higher-precision clock source. When migrating from PIC16F1823 to PIC16LF1823, check that the application stays within the LF's 3.6 V maximum Vdd.
Compliance Information
RoHS and REACH compliance confirmed by Microchip product page. Not AEC-Q100 qualified - for automotive safety applications, use AEC-Q100 qualified PIC16F counterparts or PIC16F1823-E/ST extended grade. Conflict-minerals statement available from Microchip.
