PIC18C452T-E/PT - 8-Bit MCU 32KB EPROM 5V TQFP-44 | Microchip
N.º da peça: PIC18C452T-E/PT ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $18.45 | $18,45 |
| 10 | $16.85 | $168,50 |
| 100 | $14.95 | $1.495,00 |
| 500 | $12.75 | $6.375,00 |
| 1.000 | $10.5 | $10.500,00 |
PIC18C452T-E/PT Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data RAM, and integrated peripherals such as timers, ADC, communication interfaces, and I/O ports. The PIC18C family sits within Microchip's high-performance 8-bit portfolio, optimized for embedded control where deterministic instruction timing, low part cost, and rich peripheral integration outweigh the throughput of 16-bit or 32-bit cores.
Key features include 1536 bytes of data RAM, 34 digital I/O pins, a 10-bit multi-channel analog-to-digital converter (ADC), two Capture/Compare/PWM (CCP) modules, three external interrupt pins, four timers (Timer0 8/16-bit, Timer1 16-bit, Timer2 8-bit, Timer3 16-bit), a hardware single-cycle multiplier, and a Parallel Slave Port (PSP). The device supports in-circuit serial programming (ICSP) and is qualified to the extended automotive temperature grade (-40°C to +125°C).
Architecturally, the PIC18C452 uses an enhanced Harvard bus architecture with separate program and data paths, enabling simultaneous instruction fetch and operand access. The hardware multiplier completes 8-bit x 8-bit operations in a single cycle, accelerating digital filter math, PID loops, and CRC-style routines common in motor-control and instrumentation firmware.
Typical applications include industrial control systems, automotive body and powertrain subsystems, instrumentation front-ends with ADC-based sensor acquisition, and embedded control boards replacing discrete logic with a programmable solution. The wide I/O count makes it suitable as a host MCU for human-machine interface (HMI) boards and small appliances.
When designing with this device, note that OTP memory prevents firmware field updates; for production runs requiring firmware revision flexibility, consider the pin-compatible PIC18F452 flash variant. Decoupling the 5V rail with 100 nF ceramic capacitors placed within 5 mm of each supply pin minimizes switching noise on the internal analog sections.
This page synthesizes distributor pricing, drop-in-compatible alternatives, and practical design notes for the PIC18C452T-E/PT that are not found in a single manufacturer datasheet, accelerating your sourcing and design decisions.
Alternativas drop-in para PIC18C452T-E/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 PIC18C452T-E/PT (mesmo formato e footprint) — diferindo em ADC, Operating Temperature, Package, Timers, Serial Interfaces.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F452-I/PT
✅ Drop-In✓ Em estoque
$5.84 / unidade
Ver ficha técnica →PIC18F452T-I/PT
✅ Drop-In✓ Em estoque
$5 / unidade
Ver ficha técnica →PIC18C452-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18C452T-I/PT
✅ Drop-In✓ Em estoque
$5.27 / unidade
Ver ficha técnica →PIC18C452T-E/L
✅ Drop-In✓ Em estoque
$13.1 / unidade
Ver ficha técnica →PIC18F452T-E/PT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
PIC18C452T-E/PT Classificações máximas e características elétricas
| Architecture | 8-bit RISC (PIC18C) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 32 KB |
| Data RAM | 1536 bytes |
| Instruction Width | 16-bit |
| Largura do barramento de dados | 8-bit |
| Frequência máxima de clock | 40 MHz |
| Performance | 10 MIPS |
| Supply Voltage (Vdd) | 5 V |
| I/O Pins | 34 |
| ADC | 10-bit, multi-channel |
| Timers | Timer0 (8/16-bit), Timer1 (16-bit), Timer2 (8-bit), Timer3 (16-bit) |
| CCP Modules | 2 |
| External Interrupts | 3 |
| Hardware Multiplier | 8-bit x 8-bit, single-cycle |
| Parallel Slave Port (PSP) | Yes |
| Temperatura de operação | -40C to +125C (automotive E grade) |
| Encapsulamento | 44-pin TQFP (PT) |
| Tipo de montagem | Surface Mount |
Configuração de pinos do PIC18C452T-E/PT
| Pino 1 | MCLR/VPP — Master clear reset (active low) or ICSP programming voltage input |
| 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 VREF- |
| Pino 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Pino 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 7 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Pino 8 | RE0/RD/AN5 — PORTE bit 0 / parallel slave port read / analog input 5 |
| Pino 9 | RE1/WR/AN6 — PORTE bit 1 / PSP write / analog input 6 |
| Pino 10 | RE2/CS/AN7 — PORTE bit 2 / PSP chip select / analog input 7 |
| Pino 11 | VDD — +5V digital supply |
| Pino 12 | VSS — Digital ground |
| Pino 13 | OSC1/CLKI — Crystal oscillator input or external clock input |
| Pino 14 | OSC2/CLKO — Crystal oscillator output or clock output |
| Pino 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output or clock input |
| Pino 16 | RC1/CCP2 — PORTC bit 1 / CCP2 PWM/capture/compare |
| Pino 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM/capture/compare |
| Pino 18 | RC3/SCK/SCL — PORTC bit 3 / MSSP SPI clock / I2C clock |
| Pino 19 | RC4/SDI/SDA — PORTC bit 4 / MSSP SPI data in / I2C data |
| Pino 20 | RC5/SDO — PORTC bit 5 / MSSP SPI data out |
| Pino 21 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Pino 22 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Pino 23 | RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0 |
| Pino 24 | RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1 |
| Pino 25 | RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2 |
| Pino 26 | RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3 |
| Pino 27 | RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4 |
| Pino 28 | RD5/PSP5 — PORTD bit 5 / parallel slave port bit 5 |
| Pino 29 | RD6/PSP6 — PORTD bit 6 / parallel slave port bit 6 |
| Pino 30 | RD7/PSP7 — PORTD bit 7 / parallel slave port bit 7 |
| Pino 31 | VSS — Digital ground |
| Pino 32 | VDD — +5V digital supply |
| Pino 33 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Pino 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pino 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pino 36 | RB3/CCP2 — PORTB bit 3 / CCP2 alternate output |
| 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 |
| Pino 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pino 41 | VDD — +5V digital supply |
| Pino 42 | VSS — Digital ground |
| Pino 43 | NC — Not connected (per datasheet - physically present, electrically no-connect on PIC18C452) |
| Pino 44 | NC — Not connected (per datasheet - physically present, electrically no-connect on PIC18C452) |
Aplicações típicas
PIC18C452T-E/PT é adequado para 6 aplicaçãos: Industrial Control Systems, Automotive Body & Powertrain Subsystems, Instrumentation & Sensor Acquisition, Consumer Appliance Controllers, Human-Machine Interface (HMI) Boards, Motor Control (Low-Voltage DC/BLDC).
Industrial Control Systems
The PIC18C452T-E/PT's 32KB program memory, 1536 bytes RAM, and 34 I/O pins make it well suited to industrial control boards that read sensors, drive actuators, and run PID control loops. The 10 MIPS throughput supports deterministic control loops at sub-millisecond periods, while the hardware 8x8 multiplier accelerates filter math for digital PID implementations. The automotive-grade E temperature rating guarantees operation in factory-floor enclosures up to +125C junction temperature.
Recomendado
Automotive Body & Powertrain Subsystems
Automotive body controllers, instrument clusters, HVAC modules, and simple powertrain controllers rely on the PIC18C452T-E/PT's extended temperature grade (-40C to +125C), 10 MIPS throughput, and integrated CAN-friendly peripherals. The OTP EPROM provides a measure of firmware protection against reverse engineering. The 10-bit ADC handles sensor inputs for temperature, pressure, and throttle position, while the two CCP modules drive PWM outputs for motor control and lighting intensity modulation.
Recomendado
Instrumentation & Sensor Acquisition
Test and measurement front-ends use the PIC18C452T-E/PT's 10-bit multi-channel ADC, 1536 bytes RAM, and three external interrupts to sample analog signals and respond to threshold events. The single-cycle 8x8 hardware multiplier accelerates digital filter math for moving averages and weighted-window compensation. With 34 I/O pins available, the chip can scan a matrix of buttons while driving a character LCD without external I/O expanders.
Recomendado
Consumer Appliance Controllers
Appliance mainboards for washing machines, dishwashers, ovens, and small HVAC units benefit from the PIC18C452T-E/PT's combination of low cost, ample program memory (32KB), and rich peripheral set including two CCP modules for motor and heater PWM control. The PIC18C RISC architecture executes most instructions in a single cycle, simplifying cycle-count planning for time-sensitive I/O such as triac-fired heater zero-crossing detection.
Recomendado
Human-Machine Interface (HMI) Boards
Simple HMI panels with LCDs, keypads, and rotary encoders pair naturally with the PIC18C452T-E/PT's 34 I/O pins, 10-bit ADC for backlight or trim-pot sensing, and hardware interrupts for encoder quadrature decoding. The 1536-byte RAM buffer is sufficient to hold 4x20 character LCD display strings plus a debounced keypad history. Automotive E temperature grade ensures reliable operation in dashboards and outdoor equipment enclosures.
Recomendado
Motor Control (Low-Voltage DC/BLDC)
The PIC18C452T-E/PT's two CCP modules generate complementary PWM outputs for low-voltage DC motor, BLDC, and stepper drivers up to a few hundred watts. With 10 MIPS throughput, the firmware can sample current sensors via the 10-bit ADC and adjust PWM duty within a 1 kHz control loop without timing pressure. Automotive temperature grade makes it appropriate for electric bike controllers, window lift modules, and small fan drives.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18C452T-E/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F452-I/PT | PIC18F452T-I/PT | PIC18C452-I/PT | PIC18F452T-E/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Program Memory Type | OTP EPROM 32KB | Flash 32KB | Flash 32KB | OTP EPROM 32KB | Flash 32KB |
| Data RAM | 1536 bytes | 1536 bytes | 1536 bytes | 1536 bytes | 1536 bytes |
| Maximum Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Performance (MIPS) | 10 MIPS | 10 MIPS | 10 MIPS | 10 MIPS | 10 MIPS |
| I/O Pins | 34 | 34 | 34 | 34 | 34 |
| ADC | 10-bit multi-channel | 10-bit multi-channel | 10-bit multi-channel | 10-bit multi-channel | 10-bit multi-channel |
| Temperature Grade | Automotive E (-40C to +125C) | Industrial I (-40C to +85C) | Industrial I (-40C to +85C) | Industrial I (-40C to +85C) | Automotive E (-40C to +125C) |
| CCP Modules | 2 | 2 | 2 | 2 | 2 |
| In-Circuit Reprogramming | No (OTP EPROM) | Yes (Flash) | Yes (Flash) | No (OTP EPROM) | Yes (Flash) |
| Lifecycle Status | Obsolete | Mature / Active | Mature / Active | Obsolete | Mature / Active |
Principais diferenciais
- Same die as PIC18F452 with flash upgrade path (vs PIC18F452-I/PT)
- Automotive extended temperature grade (-40C to +125C) (vs PIC18C452-I/PT)
- Larger program memory than PIC16F predecessors (vs PIC16F877-I/P)
Notas de projeto
Place 100 nF ceramic decoupling capacitors within 5 mm of each VDD pin (pins 11, 32, 41) and a single 10 uF bulk tantalum or ceramic on the 5V rail. For analog noise-sensitive designs (ADC), add a separate 100 nF + 10 uF pair on AVdd/Vss if the board separates digital and analog supplies, even though the PIC18C452 family typically shares AVdd and Vdd internally. Keep total supply current budget under 250 mA peak to avoid internal LDO heating.
Route the 40 MHz crystal traces (OSC1 pin 13, OSC2 pin 14) short and symmetric to minimize skew. Keep the MCLR/VPP trace short and isolated; if the design uses ICSP, place a 10 kOhm pull-up and a 100 nF + diode reset network to allow in-circuit programming without disturbing run-time reset. The 44-pin TQFP at 0.8 mm pitch tolerates standard 4-layer PCB routing; use 0.15 mm/0.30 mm (6/12 mil) traces with 0.2 mm clearance.
Be aware that OTP EPROM devices cannot be field-updated. If your design uses the C variant to lock firmware, you will need a separate factory programming step via ICSP, and any silicon revision requires new tooling. Plan upgrade paths by reserving board space for an optional flash variant (PIC18F452) footprint. Confirm CONFIG bits (oscillator, watchdog, brown-out, code protection) for each board variant before firmware release.
Informações de conformidade
RoHS status marked [DATA_NEEDED] - manufacturer datasheet for this obsolete part does not explicitly state RoHS compliance on the verified product page. The E temperature grade designation refers to operating range, not AEC-Q100 automotive qualification. Lead-free manufacturing is assumed for tape-and-reel T-suffix TQFP parts.