PIC18F23K20-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC18F23K20-I/SO is an 8-bit PIC18 microcontroller with 8 KB Flash, 512 bytes RAM, and a 10-bit ADC with 10 channels, running up to 64 MHz. It operates from as low as 1.8 V supply at 16 MHz, making it suitable for battery-powered and low-voltage embedded applications. Available in a 28-pin SOIC package widely used in industrial and consumer designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F23K20-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5530(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC18 core operating up to 64 MHz for efficient control and computation
- 8 KB Flash program memory with 512 bytes RAM for firmware and variable storage
- 10-channel 10-bit ADC for multi-input analog sensing and measurement
- Ultra-low-voltage operation from 1.8 V at 16 MHz enabling battery-powered designs
- 28-pin SOIC package with broad distributor availability and standard SMT assembly
- Pb-free and RoHS-compliant for environmentally compliant production
Applications
PIC18F23K20-I/SO is used in battery-powered sensor nodes, low-voltage industrial controllers, and consumer appliance interfaces requiring an 8-bit MCU with multi-channel ADC. It is also applied in smart home devices, data loggers, and portable instruments where its ability to operate from 1.8 V enables single-cell or coin-cell powered designs with a proven PIC18 software ecosystem.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 11Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 1.8V MIN SUPPLY FOR 16 MHZ AND OPERATES AT 2V FOR 20 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 64MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 25 |
| Number of Serial I/Os | 1 |
| Number of Timers | 6 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 512 |
| ROM (words) | 8192 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 64MHz |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low can PIC18F23K20-I/SO's supply voltage go, and what clock speed is available at that voltage?
PIC18F23K20-I/SO operates from as low as 1.8 V supply at up to 16 MHz clock frequency, and at 2 V it supports up to 20 MHz. At its full 64 MHz speed, a higher supply is required. This flexibility allows designers to choose the optimal voltage-performance trade-off for battery-powered applications using single-cell lithium or alkaline power sources.
How many ADC channels does PIC18F23K20-I/SO provide, and is that sufficient for a multi-sensor data acquisition board?
PIC18F23K20-I/SO includes a 10-bit ADC with 10 input channels, which can simultaneously sample temperature, pressure, current, and voltage signals on a single-board data acquisition design. At a 64 MHz core clock, the ADC conversion rate is fast enough to service all 10 channels in a round-robin scan loop within typical sensor sampling bandwidth requirements.
What is the Flash-to-RAM ratio in PIC18F23K20-I/SO, and how does it affect firmware design choices?
PIC18F23K20-I/SO has 8 KB Flash and 512 bytes RAM, a ratio typical for embedded PIC18 applications where code is stored in Flash but variables are highly constrained. Firmware must minimize dynamic allocation and use lookup tables stored in program memory (via const or progmem-style techniques) to fit within 512 bytes RAM while still supporting 10-channel ADC processing in the main control loop.
Is PIC18F23K20-I/SO a good long-term procurement choice for high-volume consumer products?
PIC18F23K20-I/SO is Pb-free with a YTEOL of 8 years and an 11-week factory lead time, suggesting reasonable but not exceptional availability margins for high-volume programs. For products requiring a longer supply window, designers may consider migrating to a PIC18 variant with a higher YTEOL. The standard 28-pin SOIC footprint does provide some flexibility to qualify alternate sources if needed.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5530 | $0.55 |
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