PIC18F4525T-I/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
PIC18F4525T-I/PT is an 8-bit PIC18 microcontroller by Microchip with 48 KB Flash, 3968 bytes RAM, and 36 I/O pins in a 44-TQFP package. Key specs: 20 MHz clock, 10-bit ADC, and multiple UART/SPI/I2C peripherals. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F4525T-I/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.3300(MOQ 22)
- 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 architecture running at up to 20 MHz with 16 MIPS single-cycle instruction throughput
- 48 KB Flash program memory and 3968 bytes RAM supporting complex embedded firmware without external storage
- 36 general-purpose I/O pins with 10-bit ADC, UART, SPI, and I2C in a compact 44-TQFP package
Applications
The PIC18F4525T-I/PT is well-suited for embedded control systems such as industrial automation controllers, HVAC panels, and medical instruments where a proven 8-bit architecture reduces firmware complexity. Its 48 KB Flash provides sufficient code space for modbus stacks, sensor fusion algorithms, or display drivers at 20 MHz. The 44-pin TQFP form factor and wide 2.0 V to 5.5 V supply range simplify board layout in cost-sensitive 3.3 V and 5 V mixed-signal designs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-44 |
| Factory Lead Time | 6Weeks |
| YTEOL | 10 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G44 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 36 |
| 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 | TQFP44,.39SQ,31 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 3968 |
| ROM (words) | 49152 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 25mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.2V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.8mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC18F4525T-I/PT:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
Frequently Asked Questions
How much program memory does PIC18F4525T-I/PT provide and is it enough for a Modbus RTU stack?
The PIC18F4525T-I/PT includes 48 KB of Flash program memory paired with 3968 bytes of SRAM. A typical Modbus RTU slave stack occupies less than 8 KB of Flash, leaving ample space for application logic, interrupt service routines, and a serial bootloader running at 20 MHz clock speed.
Which communication interfaces are integrated in PIC18F4525T-I/PT for sensor and display connectivity?
The device integrates USART (UART/SPI), I2C master/slave, and an MSSP module supporting full-duplex SPI at up to 10 MHz. These 3 hardware peripherals, combined with 36 I/O pins in the 44-TQFP package, allow simultaneous connection of an RS-485 transceiver, an SPI display, and an I2C sensor hub without bus contention.
Is PIC18F4525T-I/PT suitable for 3.3 V systems, or is it strictly a 5 V device?
PIC18F4525T-I/PT operates across a 2.0 V to 5.5 V supply range at up to 20 MHz, making it directly compatible with both 3.3 V and 5 V logic levels. The 10-bit ADC reference can be set internally, allowing accurate analog measurement even when the supply dips toward 2.0 V in battery-backed industrial or portable applications.
When would a designer choose PIC18F4525T-I/PT over a newer PIC18F K-series with lower power consumption?
The PIC18F4525T-I/PT suits cost-sensitive legacy-compatible designs where 20 MHz throughput and a 44-pin TQFP footprint match existing board layouts, and ultra-low standby current below 1 µA is not a strict requirement. Applications such as fixed industrial panels, wired HVAC controllers, and mains-powered instrumentation can leverage its mature ecosystem of compilers and libraries at a lower unit cost than more advanced XLP devices.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 22+ | $9.4474 | $207.84 |
| 28+ | $9.1325 | $255.71 |
| 37+ | $8.1878 | $302.95 |
| 100+ | $6.1100 | $611.00 |
| 1000+ | $5.6200 | $5620.00 |
| 5000+ | $5.3300 | $26650.00 |
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