PIC18LF4610-I/PT - 8-bit 40MHz MCU 64KB Flash 44-TQFP | Microchip
MPN: PIC18LF4610-I/PT ✓ نشطPIC18LF4610-I/PT نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and a rich set of peripherals such as timers, ADCs, and communication interfaces. The PIC18F family sits in the hierarchy as 8-bit MCU -> RISC microcontroller -> embedded controller -> semiconductor IC, and it is widely used in cost-sensitive embedded designs requiring deterministic interrupt response and easy in-circuit programmability. The LF sub-family extends this with nanoWatt technology for battery-powered applications, allowing the CPU core and peripherals to operate down to 2.0 V while maintaining peripheral functionality.
Key features of the PIC18LF4610 include 64 KB self-programmable Flash, hardware 8x8 multiplier, C compiler-optimized instruction set with 16-bit wide instructions, 1 microsecond instruction cycle at 10 MIPS, two Enhanced Capture/Compare/PWM (ECCP) modules, a Master Synchronous Serial Port (SSP) with SPI and I2C modes, two Enhanced USART modules supporting RS-232/RS-485 and LIN, a 10-bit ADC with up to 13 channels, dual analog comparators, and four timers (Timer0/1/2/3). The device also supports ICD (In-Circuit Debugger) via two pins and ICSP (In-Circuit Serial Programming) for field updates.
Architecturally, the PIC18LF4610 uses an enhanced Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. The 16-bit instruction word enables richer addressing modes than the base-line PIC16 family, while the 8-bit data path keeps the silicon small and the throughput predictable. nanoWatt technology adds multiple idle modes (Idle, Sleep, Doze, and peripheral clock gating) that allow the application to dynamically trade speed for power consumption.
Typical applications include industrial control and HMI panels, low-power sensor nodes with LCD displays, USB peripherals (when paired with external transceiver), motor control for small DC and stepper drives, automotive body and lighting subsystems, medical instrumentation, and consumer appliances that require reliable 8-bit control with ample Flash for protocol stacks. The wide 2.0 V to 5.5 V supply range and nanoWatt sleep modes also make it a strong fit for battery-powered metering and remote-monitoring nodes.
When designing with this part, pay attention to the decoupling network (one 100 nF ceramic plus one bulk tantalum or aluminum per VDD/VSS pair), keep the analog and digital supplies separate (AVDD/AVSS) if ADC accuracy matters, and reserve the PGC/PGD pins for in-circuit programming. The 44-pin TQFP footprint is also shared by several PIC18F4x family siblings, which simplifies second-source and pin-compatible migration during the design's lifetime.
This page synthesizes distributor pricing, drop-in alternatives drawn from the same PIC18F4x family, and practical design notes not found in the manufacturer datasheet alone, giving engineers an at-a-glance comparison and selection aid.
بدائل مباشرة لـ PIC18LF4610-I/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC18LF4610-I/PT (نفس عامل الشكل والبصمة) — يختلف في Operating Temperature, Package, Timers, Core Architecture, Program Memory (Flash).
PIC18F4620-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F4610-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18LF4610T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18LF4520-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F46K22-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F45K22-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18LF4610-I/PT الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC18 (8-bit RISC, enhanced Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data SRAM | 3968 bytes |
| Data EEPROM | 1024 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Analog Comparators | 2 |
| Timers (8/16-bit) | 4 (Timer0, Timer1, Timer2, Timer3) |
| Enhanced CCP Modules | 2 (ECCP) |
| UART (EUSART) | 2 (RS-232/RS-485/LIN) |
| SPI | 1 (Master SSP) |
| I2C | 1 (Master SSP) |
| العلبة | 44-pin TQFP (PT), 10x10 mm |
| نوع التركيب | Surface Mount |
| درجة حرارة التشغيل | -40C to +85C (Industrial, -I suffix) |
| nanoWatt Technology | Yes (multiple low-power modes) |
| In-Circuit Debug | ICD via PGC/PGD |
| حالة RoHS | Compliant (lead-free PT package) |
تكوين أطراف PIC18LF4610-I/PT
| دبوس 1 | MCLR/VPP — Master Clear (active low reset) / ICSP programming voltage |
| دبوس 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| دبوس 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| دبوس 4 | RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC negative reference |
| دبوس 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC positive reference |
| دبوس 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| دبوس 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| دبوس 8 | RE0/RD0/P2D — PORTE bit 0 / Enhanced CCP2 PWM output D |
| دبوس 9 | RE1/P2C — PORTE bit 1 / Enhanced CCP2 PWM output C |
| دبوس 10 | RE2/P2B — PORTE bit 2 / Enhanced CCP2 PWM output B |
| دبوس 11 | VDD — Positive supply voltage |
| دبوس 12 | VSS — Ground reference |
| دبوس 13 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock / PORTA bit 7 |
| دبوس 14 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / PORTA bit 6 |
| دبوس 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / clock input |
| دبوس 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / ECCP2 |
| دبوس 17 | RC2/CCP1 — PORTC bit 2 / ECCP1 |
| دبوس 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| دبوس 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| دبوس 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| دبوس 21 | RC6/TX1/CK1 — PORTC bit 6 / EUSART1 TX / clock |
| دبوس 22 | RC7/RX1/DT1 — PORTC bit 7 / EUSART1 RX / data |
| دبوس 23 | RD0 — PORTD bit 0 |
| دبوس 24 | RD1 — PORTD bit 1 |
| دبوس 25 | RD2 — PORTD bit 2 |
| دبوس 26 | RD3 — PORTD bit 3 |
| دبوس 27 | RD4 — PORTD bit 4 |
| دبوس 28 | RD5/P1B — PORTD bit 5 / ECCP1 PWM output B |
| دبوس 29 | RD6/P1C — PORTD bit 6 / ECCP1 PWM output C |
| دبوس 30 | RD7/P1D — PORTD bit 7 / ECCP1 PWM output D |
| دبوس 31 | VSS — Ground reference |
| دبوس 32 | VDD — Positive supply voltage |
| دبوس 33 | RB0/INT0/FLT0 — PORTB bit 0 / External interrupt 0 / ECCP fault input |
| دبوس 34 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| دبوس 35 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| دبوس 36 | RB3/INT3/CCP2 — PORTB bit 3 / External interrupt 3 / ECCP2 |
| دبوس 37 | RB4 — PORTB bit 4 (interrupt-on-change) |
| دبوس 38 | RB5 — PORTB bit 5 (interrupt-on-change) |
| دبوس 39 | RB6/PGC — PORTB bit 6 / ICSP clock / interrupt-on-change |
| دبوس 40 | RB7/PGD — PORTB bit 7 / ICSP data / interrupt-on-change |
| دبوس 41 | AVDD — Analog supply voltage |
| دبوس 42 | AVSS — Analog ground |
| دبوس 43 | RE3 — PORTE bit 3 (input only) |
| دبوس 44 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC18LF4610-I/PT مناسب لـ 6 التطبيقs: Industrial Control and HMI Panels, Battery-Powered Sensor Nodes, Small DC and Stepper Motor Control, Medical Instrumentation Sub-Systems, Automotive Body and Lighting Modules, USB Human-Interface Peripherals.
Industrial Control and HMI Panels
The PIC18LF4610-I/PT fits industrial control panels because its 64 KB Flash and 10 MIPS throughput handle real-time Modbus RTU and CAN task loops, while the 2.0 V to 5.5 V supply tolerates 24 V industrial rails stepped down by a DC-DC converter. The 36 I/O pins drive matrix keypads, character LCDs, and status LEDs directly through current-limited ports. Designers can reserve 1 KB of EEPROM for non-volatile parameter storage (calibration, setpoints) and rely on the dual EUSART for RS-485 link to a PLC. The 44-TQFP footprint also shares land pattern with the PIC18F4620/46K22 family, easing future performance upgrades without PCB rework.
موصى به
Battery-Powered Sensor Nodes
With nanoWatt Sleep currents in the microamp range and a 2.0 V minimum supply, the PIC18LF4610-I/PT powers remote monitoring nodes running on a pair of AA cells for multi-year lifetimes. The 13-channel 10-bit ADC reads temperature, humidity, and battery voltage directly, while the I2C bus interfaces to a digital sensor such as the SHT21. Two timers wake the CPU on RTC overflow or external interrupt, then return to Sleep, achieving sub-50 uA average draw. The 44-TQFP industrial temperature rating allows outdoor deployment from -40C to +85C.
موصى به
Small DC and Stepper Motor Control
The two Enhanced CCP (ECCP) modules of the PIC18LF4610-I/PT generate center-aligned PWM up to 40 kHz, suitable for brushed DC motor and unipolar stepper drives. The 10 MIPS CPU executes PID loops at 1 kS/s with margin to spare for a CAN keypad/encoder interface. The 10-bit ADC samples current shunt signals, while the EUSART streams telemetry to the host. The 44-TQFP industrial temperature grade suits automotive underhood or factory-floor enclosures.
موصى به
Medical Instrumentation Sub-Systems
The PIC18LF4610-I/PT is suitable for medical device sub-systems such as infusion pump user-interface boards and bedside-monitor display controllers, where deterministic interrupt response and a long-proven toolchain matter more than raw CPU throughput. The dual EUSARTs link to a host processor, the I2C bus drives an LCD controller, and the ECCP modules manage backlight dimming. The 64 KB Flash absorbs GLP/IEC 62304 firmware audit notes. Designers must still implement IEC 60601-1 isolation on the system level and validate firmware to FDA design controls.
موصى به
Automotive Body and Lighting Modules
The PIC18LF4610-I/PT handles interior lighting controllers, seat-position modules, and body computer sub-functions in non-safety-critical roles. The 44-TQFP industrial temperature rating covers cabin-temperature ranges, and the 5.5 V absolute-maximum supply withstands load-dump events when paired with an external TVS clamp and a 5 V LDO. The dual EUSARTs interface to LIN or CAN via external transceivers, while ECCP modules drive LED strings with PWM dimming. For safety-critical applications use an AEC-Q100 qualified part such as PIC18F46K80-I/PT.
موصى به
USB Human-Interface Peripherals
Pair the PIC18LF4610-I/PT with an external USB transceiver such as the MCP2200 or MCP2210 to build HID-class peripherals (keyboards, mice, custom panels) or CDC serial adapters. The 64 KB Flash hosts USB HID descriptors and protocol state machines, while the SPI/UART connects to application sensors. The wide 2.0 V to 5.5 V supply range allows bus-powered 5 V designs and self-powered 3.3 V designs from the same firmware image. The 44-TQFP footprint simplifies board layout versus QFN alternatives.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC18LF4610-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC18F4620-I/PT | PIC18F4610-I/PT | PIC18LF4610T-I/PT | PIC18LF4520-I/PT | PIC18F46K22-I/PT | PIC18F45K22-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm |
| Flash (KB) | 64 | 64 | 64 | 64 | 32 | 64 | 32 |
| SRAM (bytes) | 3968 | 3968 | 3968 | 3968 | 1536 | 3896 | 1536 |
| EEPROM (bytes) | 1024 | 1024 | 1024 | 1024 | 1024 | 1024 | 1024 |
| Max CPU Speed (MHz) | 40 | 40 | 40 | 40 | 40 | 64 | 64 |
| Supply Voltage (V) | 2.0 to 5.5 | 2.0 to 5.5 | 4.2 to 5.5 | 2.0 to 5.5 | 2.0 to 5.5 | 1.8 to 5.5 | 1.8 to 5.5 |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 | 36 |
| ADC | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 19 ch | 10-bit, 19 ch |
أبرز الفروقات
- Lowest minimum supply voltage in the 44-TQFP PIC18F4x family (مقابلPIC18F4610-I/PT)
- Larger Flash density than PIC18LF4520 (مقابلPIC18LF4520-I/PT)
- Same 44-TQFP footprint as upgraded 64 MHz K-series (مقابلPIC18F46K22-I/PT)
ملاحظات التصميم
Place one 100 nF X7R ceramic bypass capacitor on each VDD/VSS pair and one 10 uF bulk tantalum or aluminum capacitor near the MCU's supply pin. The LF variant requires stable 2.0 V operation - the chosen LDO must hold regulation under the maximum 40 MHz transient current of 25 mA. Add a 10 kohm pull-up on MCLR to ensure clean reset on power-up; avoid tying MCLR directly to VDD.
At continuous 40 MHz operation the device draws roughly 16 mA from a 5 V rail, dissipating approximately 80 mW - well within the TQFP-44 theta_JA of about 50 C/W. In a sealed enclosure with no airflow, add copper pours on both top and bottom layers under the exposed pad footprint. Industrial-temperature applications should still derate junction to +100 C maximum for long-term reliability (Estimated: 50 C/W x 0.08 W = 4 C rise above ambient).
Keep the analog reference (AVDD/AVSS) trace separated from digital switching rails; place the AVSS pin to a low-impedance ground island and decouple with 100 nF plus 10 uF. Route the crystal traces short and symmetric, surrounded by a grounded guard ring, to avoid EMI and oscillator overdrive. The PGC/PGD pair should be routed to a 2x3 ICSP header with no series resistors (unless the debugger pod requires them).
When migrating to PIC18F46K22-I/PT, recompile firmware with the new device header file - register addresses for ADC, PWM, and EUSART differ even though the pinout is the same. Do not assume the LF suffix means the device is OTP or mask-ROM; the LF family parts are flash and ICSP-programmable. Avoid leaving unused I/O pins floating; configure them as outputs or inputs with weak pull-ups to minimize current draw.
معلومات الامتثال
PIC18LF4610-I/PT (PT suffix = lead-free 44-TQFP) is RoHS and REACH compliant per Microchip product environmental compliance documents. It is NOT AEC-Q100 qualified; for automotive use select PIC18F45K80-I/PT. Pb-free reflow up to 260 C per JEDEC J-STD-020. MSL-3 moisture sensitivity level.