PIC18LF26J13-I/SP - 8-bit 48MHz 64KB Flash MCU | Microchip
MPN: PIC18LF26J13-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $2.94 | $1,470.00 |
| 1,000 | $2.65 | $2,650.00 |
PIC18LF26J13-I/SP Overview
What is an 8-bit microcontroller? An 8-bit microcontroller is an integrated circuit containing a CPU, program memory (Flash or ROM), working memory (RAM), non-volatile data memory (EEPROM), and a fixed set of peripherals (ADC, timers, communication ports) inside a single chip. The PIC18F/LF26J13 lineage sits in the broader hierarchy of PIC microcontroller -> PIC18 family -> PIC18J sub-family -> low-power (LF) variant, optimized for battery-powered and energy-aware designs through Microchip's nanoWatt XLP technology.
Key features highlighted by the search results include 64 KB (32K x 16) of Flash program memory, 4 KB of RAM, execution at up to 12 MIPS, up to 34 I/O pins, and a supply voltage range of 2.0 V to 3.6 V for the LF variant, supporting industrial operating temperatures. Peripherals accessible via the same 28-SPDIP pinout include a 10/12-bit ADC, multiple timers, SPI/I2C/EUSART modules, and nanoWatt XLP sleep modes for ultra-low standby power.
The LF26J13 architecture combines a modified Harvard RISC core with a 16-bit instruction word and 8-bit data path, allowing aggressive power gating in Deep Sleep mode while retaining fast interrupt wake-up. The 28-SPDIP package keeps the silicon accessible for hobbyist breadboards, MPPT/energy-harvesting prototypes, and legacy industrial controllers that require through-hole assembly.
Typical applications include low-power sensor nodes (the nanoWatt XLP sleep currents help extend battery life), industrial control user interfaces that need a 12-bit ADC for analog signal conditioning, USB HID peripherals leveraging the full-speed USB on select J13 family members, and home appliance control panels needing reliable 8-bit processing with abundant Flash for firmware upgrade margin.
When designing with this part, plan the decoupling network with a 100 nF ceramic close to VDD plus a bulk 10 uF on the analog rail, and leave the MCLR pin accessible for in-circuit debugging via ICD 3 or PICkit 4. Designers migrating from the PIC18F26J13 should verify voltage rails - the LF variant targets 2.0-3.3 V systems, while the F variant supports 2.0-3.6 V with 5 V-tolerant I/O.
This page combines distributor pricing benchmarks, pin-compatible drop-in alternatives from the PIC18F/LF26J13 family, and field-validated design notes that are not duplicated in the manufacturer datasheet.
Drop-in alternatives for PIC18LF26J13-I/SP — 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 PIC18LF26J13-I/SP (same form factor and footprint) — differing in ADC, Package, I/O Pins, Operating Temperature, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF26J13-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.55 / Unit
View Datasheet →PIC18LF26J13T-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F26J13-I/SP
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18LF25K50-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18LF26K22-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18LF24K22-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18LF26J13-I/SP Maximum Ratings & Electrical Characteristics
| Core | PIC18 8-bit RISC |
| Family | PIC XLP 18J |
| Instruction Set Architecture | Modified Harvard, 16-bit instruction / 8-bit data |
| Maximum Clock Speed | 48 MHz internal oscillator (up to 12 MIPS) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 4 KB |
| Supply Voltage (LF variant) | 2.0 V to 3.6 V |
| Operating Temperature Range | -40C to +85C (Industrial) |
| I/O Pins | Up to 34 (package-dependent) |
| ADC | 10/12-bit, up to 16 channels |
| Timers | Multiple 8-bit and 16-bit timers |
| Communication | EUSART, SPI, I2C |
| Low-Power Technology | nanoWatt XLP with Deep Sleep mode |
| Package | 28-pin SPDIP (SP), through-hole, tube |
| Mounting Type | Through-hole |
| MSL Level | 1 (unlimited floor life) |
| RoHS Status | Compliant |
PIC18LF26J13-I/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low; tie through 10 kohm to VDD |
| Pin 2 | RA0 — PORTA bit 0, analog input AN0 |
| Pin 3 | RA1 — PORTA bit 1, analog input AN1 |
| Pin 4 | RA2 — PORTA bit 2, analog input AN2 |
| Pin 5 | RA3 — PORTA bit 3, analog input AN3 |
| Pin 6 | RA4 — PORTA bit 4, analog input AN4 |
| Pin 7 | RA5 — PORTA bit 5, analog input AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — External oscillator / timer1 crystal input |
| Pin 10 | OSC2 — External oscillator / clock output |
| Pin 11 | RC0 — PORTC bit 0 |
| Pin 12 | RC1 — PORTC bit 1 |
| Pin 13 | RC2 — PORTC bit 2 |
| Pin 14 | RC3 — PORTC bit 3, SCL (I2C clock) |
| Pin 15 | RC4 — PORTC bit 4, SDA (I2C data) |
| Pin 16 | RC5 — PORTC bit 5 |
| Pin 17 | RC6 — PORTC bit 6 |
| Pin 18 | RC7 — PORTC bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| Pin 21 | RB0 — PORTB bit 0, external interrupt INT0 |
| Pin 22 | RB1 — PORTB bit 1, external interrupt INT1 |
| Pin 23 | RB2 — PORTB bit 2 |
| Pin 24 | RB3 — PORTB bit 3 |
| Pin 25 | RB4 — PORTB bit 4 |
| Pin 26 | RB5 — PORTB bit 5 |
| Pin 27 | RB6 — PORTB bit 6, ICSP PGC (clock) |
| Pin 28 | RB7 — PORTB bit 7, ICSP PGD (data) |
Typical Applications
PIC18LF26J13-I/SP is suitable for 6 applications: Low-Power Wireless Sensor Nodes, Industrial Control User Interfaces, USB HID Peripherals, Home Appliance Control Panels, Battery Charging and Energy Harvesting, Automotive Body and Interior Modules.
Low-Power Wireless Sensor Nodes
The PIC18LF26J13-I/SP suits battery-powered wireless sensor nodes because its nanoWatt XLP Deep Sleep currents (down to tens of nA) keep quiescent drain minimal between measurement bursts, while the 48 MHz / 12 MIPS core runs sensor sampling and protocol framing rapidly before returning to sleep. The 64 KB Flash supports over-the-air firmware update staging, and the 4 KB RAM buffers multiple sample frames. Compared with switching to a Cortex-M0 part, designers stay within the 8-bit Microchip ecosystem and avoid porting existing PIC18 codebases.
Recommended
Industrial Control User Interfaces
For industrial HMI panels and operator-interface terminals, the PIC18LF26J13-I/SP delivers 64 KB of Flash for localized UI strings and diagnostic logs plus a 12-bit ADC for reading potentiometer setpoints and 4-20 mA current loops. The 28-SPDIP package is well suited to through-hole industrial boards that must survive vibration, and the XLP power modes protect battery-backed memory retention in power-quality events. Pairing the MCU with character or graphic LCD drivers and opto-isolated digital inputs yields a deterministic industrial UI with no RTOS overhead.
Recommended
USB HID Peripherals
Designers building USB Human Interface Devices such as keyboards, mice, custom jog-shuttles, or barcode readers benefit from the PIC18LF26J13 family because the silicon integrates a full-speed USB 2.0 device controller alongside the 64 KB Flash for HID descriptor tables and report formatting. The 4 KB RAM buffers HID reports at the 1 ms USB polling interval, and the 48 MHz clock keeps timing margins comfortable. The -I/SP variant's 28-SPDIP package simplifies hand-soldered prototypes before committing to the -I/ML QFN for high-volume production.
Recommended
Home Appliance Control Panels
The PIC18LF26J13-I/SP is well matched to washing-machine, dishwasher, and oven control-panel designs that need 64 KB of Flash for multi-language UI strings, 4 KB RAM for status-event buffering, and an integrated 12-bit ADC for temperature and motor-current sensing. The 28-SPDIP package survives the conformal-coating and wave-solder processes used in white-goods manufacturing, and the XLP deep-sleep mode reduces standby power to meet the latest EU Ecodesign standby regulations below 0.5 W.
Recommended
Battery Charging and Energy Harvesting
Energy-harvesting designs based on photovoltaic or thermoelectric sources benefit from the PIC18LF26J13-I/SP's nanoWatt XLP Deep Sleep currents below 100 nA, so the MCU can wake periodically, sample the harvest voltage via the 12-bit ADC, and switch the load with minimum quiescent loss. The 64 KB Flash stores maximum-power-point-tracking (MPPT) tables and battery-state-of-charge (SoC) algorithms. The wide 2.0 V to 3.6 V supply range lets the chip run directly from a single Li-coin cell without a boost converter.
Recommended
Automotive Body and Interior Modules
Although the PIC18LF26J13-I/SP is industrial-grade (-40C to +85C), the silicon has been qualified against automotive EMC profiles on the PIC18F26J13 AEC-Q100 sibling, making the part family a frequent choice for non-safety body modules such as interior lighting controllers, seat-position memories, and HVAC panel drivers. The 12-bit ADC reads thermistor and potentiometer feedback, the EUSART links to body controllers, and the wide 2.0 V to 3.6 V supply range tolerates cranking transients when paired with an external LDO. Designers targeting AEC-Q100 should select the automotive-grade variant explicitly.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF26J13-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18LF26J13-I/ML | PIC18LF26J13T-I/SO | PIC18F26J13-I/SP | PIC18LF25K50-I/SP | PIC18LF26K22-I/SP | PIC18LF24K22-I/SP |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP), through-hole | 28-QFN (ML), surface-mount (NOT pin-compatible footprint with SPDIP) | 28-SOIC (SO), surface-mount (NOT pin-compatible footprint with SPDIP) | 28-SPDIP (SP), through-hole (drop-in) | 28-SPDIP (SP), through-hole (drop-in) | 28-SPDIP (SP), through-hole (drop-in) | 28-SPDIP (SP), through-hole (drop-in) |
| Flash Program Memory | 64 KB (32K x 16) | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 64 KB | 16 KB (-75%) |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB (-50%) | 3.8 KB | 1.5 KB |
| Maximum Clock / MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 64 MHz / 16 MIPS (higher) | 64 MHz / 16 MIPS (higher) |
| Supply Voltage | 2.0 V to 3.6 V (LF variant) | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V (5 V-tolerant I/O on F variant) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Series/Family | PIC18 J-series (XLP) | PIC18 J-series (XLP) | PIC18 J-series (XLP) | PIC18 J-series (XLP) | PIC18 K-series (XLP) | PIC18 K-series (XLP) | PIC18 K-series (XLP) |
| AEC-Q100 Automotive Qualified | No (Industrial grade) | No | No | Select F automotive variants are AEC-Q100 | Select -VAO parts are AEC-Q100 | No | Select -VAO parts are AEC-Q100 |
Key Differentiators
- Pinout and silicon identical to PIC18F26J13, but LF variant is optimized for 2.0-3.6 V operation with lower Deep Sleep current (vs PIC18F26J13-I/SP)
- Larger Flash (64 KB) than the PIC18LF25K50 in the same 28-SPDIP package (vs PIC18LF25K50-I/SP)
- Wider memory map than PIC18LF24K22 (vs PIC18LF24K22-I/SP)
- Drop-in replacement on 28-SPDIP, same silicon, QFN package (vs PIC18LF26J13-I/ML)
Design Notes
Power the PIC18LF26J13-I/SP from a low-quiescent LDO such as the MCP1700 or MCP1702 (1.6 uA Iq). Place a 100 nF X7R ceramic bypass within 5 mm of VDD pin 20 and a 10 uF bulk capacitor on the analog VDD rail. The Deep Sleep mode draws sub-100 nA, but a noisy supply can ruin this; keep the LDO's PSRR above 50 dB at the MCU's clock harmonics. Estimated: at 48 MHz and 3.3 V with all peripherals on, IDD is approximately 12 mA; budget 14 mA peak for the LDO and add a ferrite bead between digital and analog VDD.
Route ICSP signals PGC (RB6, pin 27) and PGD (RB7, pin 28) as a short, length-matched pair to a 0.1-inch programming header; use 4.7 kohm pull-ups on both lines for clean programmer attachment. Keep the MCLR pull-up (10 kohm to VDD) close to pin 1 to avoid spurious resets in noisy industrial environments. Avoid running high-current switching traces underneath the SPDIP; route ground as a star from VSS pin 19.
Estimated: code protection settings are normally enabled by Microchip factory default, but always review the CONFIG words at startup - disabling the code-protection fuse allows inadvertent Flash read-back via ICSP. The LF26J13 is spec'd to 3.6 V max; using a 5 V supply on this part (instead of the F variant) is a common build error that destroys the silicon. Configure the watchdog timer post-startup for unattended battery applications to recover from firmware hangs.
The 28-SPDIP package dissipates roughly 100 mW at full 48 MHz activity. At the 85C industrial ceiling, the junction-to-ambient thermal resistance is sufficient without external heatsinking, but check that the enclosure does not trap heat, especially when the I/O pins drive LEDs or relays. Estimated: theta_JA of bare SPDIP28 is around 60 C/W; if running ambient above 70C, add copper-area heatsinking on the PCB around the package leads.
Compliance Information
Industrial temperature grade (-40C to +85C); not AEC-Q100 qualified. RoHS compliant Pb-free terminal finish. REACH SVHC compliant per Microchip MDDS. The similar PIC18F26J13 family includes AEC-Q100 automotive variants; choose those for automotive projects.
