PIC18LF4610-I/PT - 8-bit 40MHz MCU 64KB Flash 44-TQFP | Microchip
N.º da peça: PIC18LF4610-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $7.1 | $71,00 |
| 100 | $6.42 | $642,00 |
| 500 | $5.78 | $2.890,00 |
| 1.000 | $5.2 | $5.200,00 |
PIC18LF4610-I/PT Visão geral
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.
Alternativas drop-in para PIC18LF4610-I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18LF4610-I/PT (mesmo formato e footprint) — diferindo em Operating Temperature, Package, Timers, Core Architecture, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F4620-I/PT
✅ Drop-In✓ Em estoque
$5.45 / unidade
Ver ficha técnica →PIC18F4610-I/PT
✅ Drop-In✓ Em estoque
$6.1 / unidade
Ver ficha técnica →PIC18LF4610T-I/PT
✅ Drop-In✓ Em estoque
$7.3 / unidade
Ver ficha técnica →PIC18LF4520-I/PT
✅ Drop-In✓ Em estoque
$5.21 / unidade
Ver ficha técnica →PIC18F46K22-I/PT
✅ Drop-In✓ Em estoque
$2.32 / unidade
Ver ficha técnica →PIC18F45K22-I/PT
✅ Drop-In✓ Em estoque
$2.65 / unidade
Ver ficha técnica →PIC18LF4610-I/PT Classificações máximas e características elétricas
| 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) |
| Encapsulamento | 44-pin TQFP (PT), 10x10 mm |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40C to +85C (Industrial, -I suffix) |
| nanoWatt Technology | Yes (multiple low-power modes) |
| In-Circuit Debug | ICD via PGC/PGD |
| Status RoHS | Compliant (lead-free PT package) |
Configuração de pinos do PIC18LF4610-I/PT
| Pino 1 | MCLR/VPP — Master Clear (active low reset) / ICSP programming voltage |
| Pino 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Pino 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Pino 4 | RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC negative reference |
| Pino 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC positive reference |
| Pino 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| Pino 8 | RE0/RD0/P2D — PORTE bit 0 / Enhanced CCP2 PWM output D |
| Pino 9 | RE1/P2C — PORTE bit 1 / Enhanced CCP2 PWM output C |
| Pino 10 | RE2/P2B — PORTE bit 2 / Enhanced CCP2 PWM output B |
| Pino 11 | VDD — Positive supply voltage |
| Pino 12 | VSS — Ground reference |
| Pino 13 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock / PORTA bit 7 |
| Pino 14 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / PORTA bit 6 |
| Pino 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / clock input |
| Pino 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / ECCP2 |
| Pino 17 | RC2/CCP1 — PORTC bit 2 / ECCP1 |
| Pino 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 21 | RC6/TX1/CK1 — PORTC bit 6 / EUSART1 TX / clock |
| Pino 22 | RC7/RX1/DT1 — PORTC bit 7 / EUSART1 RX / data |
| Pino 23 | RD0 — PORTD bit 0 |
| Pino 24 | RD1 — PORTD bit 1 |
| Pino 25 | RD2 — PORTD bit 2 |
| Pino 26 | RD3 — PORTD bit 3 |
| Pino 27 | RD4 — PORTD bit 4 |
| Pino 28 | RD5/P1B — PORTD bit 5 / ECCP1 PWM output B |
| Pino 29 | RD6/P1C — PORTD bit 6 / ECCP1 PWM output C |
| Pino 30 | RD7/P1D — PORTD bit 7 / ECCP1 PWM output D |
| Pino 31 | VSS — Ground reference |
| Pino 32 | VDD — Positive supply voltage |
| Pino 33 | RB0/INT0/FLT0 — PORTB bit 0 / External interrupt 0 / ECCP fault input |
| Pino 34 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| Pino 35 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| Pino 36 | RB3/INT3/CCP2 — PORTB bit 3 / External interrupt 3 / ECCP2 |
| Pino 37 | RB4 — PORTB bit 4 (interrupt-on-change) |
| Pino 38 | RB5 — PORTB bit 5 (interrupt-on-change) |
| Pino 39 | RB6/PGC — PORTB bit 6 / ICSP clock / interrupt-on-change |
| Pino 40 | RB7/PGD — PORTB bit 7 / ICSP data / interrupt-on-change |
| Pino 41 | AVDD — Analog supply voltage |
| Pino 42 | AVSS — Analog ground |
| Pino 43 | RE3 — PORTE bit 3 (input only) |
| Pino 44 | NC — Not connected (per datasheet) |
Aplicações típicas
PIC18LF4610-I/PT é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF4610-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Lowest minimum supply voltage in the 44-TQFP PIC18F4x family (vs PIC18F4610-I/PT)
- Larger Flash density than PIC18LF4520 (vs PIC18LF4520-I/PT)
- Same 44-TQFP footprint as upgraded 64 MHz K-series (vs PIC18F46K22-I/PT)
Notas de projeto
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.
Informações de conformidade
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.