PIC16C64A-10I/PT - 8-Bit OTP MCU, 10MHz, 44-TQFP | Microchip
N.º da peça: PIC16C64A-10I/PT ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $8.95 | $8,95 |
| 10 | $8.06 | $80,60 |
| 100 | $7.2 | $720,00 |
| 500 | $6.5 | $3.250,00 |
| 1.000 | $5.85 | $5.850,00 |
PIC16C64A-10I/PT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and peripheral interfaces. The PIC16C64A belongs to Microchip's mid-range PIC16C family, which uses a RISC architecture with a fixed 14-bit instruction word. Compared with flash-based successors (PIC16F), OTP parts like the PIC16C64A ship unprogrammed and are programmed exactly once at production; this makes them suitable for high-volume, cost-sensitive, and tamper-resistant applications.
Key features of the PIC16C64A-10I/PT include a 200 ns instruction cycle at 10 MHz, hardware USART for serial communication, a Parallel Slave Port for external bus interfacing, two CCP modules, an 8-bit timer/counter (TMR0) plus TMR1/TMR2, a Watchdog Timer with its own on-chip RC oscillator, and Brown-out Reset protection. The 33 I/O lines can source/sink up to 25 mA per pin, sufficient to drive LEDs and small relays directly.
Architecturally, the PIC16C64A uses a Harvard structure with separate program and data buses, a 14-bit-wide instruction word, and a two-stage pipeline. OTP storage provides inherent code security (cannot be read back after programming), and the 128-byte RAM is shared between general-purpose variables and the hardware stack (8 levels deep).
Typical applications include industrial control panels, appliance control boards, automotive body modules (non-safety), simple sensor interfaces, and low-cost consumer electronics. Engineers often choose the PIC16C64A-10I/PT when code security, deterministic interrupt response, and low unit cost outweigh the convenience of in-system reprogrammability.
When designing with this device, note that OTP memory must be programmed before solder-mount, so firmware changes require a socketed prototype or a windowed ceramic JW variant for development. Always derate the 25 mA I/O source/sink rating when multiple pins switch simultaneously, and place a 0.1 uF decoupling capacitor within 5 mm of VDD.
This page synthesizes distributor pricing, OTP-vs-flash drop-in alternatives in the same 44-TQFP footprint, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas drop-in para PIC16C64A-10I/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 PIC16C64A-10I/PT (mesmo formato e footprint) — diferindo em Package, RoHS Status, Operating Temperature Range, Timers, Program Memory Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16C64A-10/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$2.97 / unidade
Ver ficha técnica →PIC16C64A-04I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.61 / unidade
Ver ficha técnica →PIC16C64A-04E/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$7.35 / unidade
Ver ficha técnica →PIC16F74-I/PT
✅ Drop-In✓ Em estoque
$5.55 / unidade
Ver ficha técnica →PIC16C65B-10I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16C64A-10I/PT Classificações máximas e características elétricas
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC16C (mid-range) |
| Core Architecture | PIC RISC, Harvard, 14-bit instruction word |
| Program Memory Size | 3.5 KB (2K x 14) OTP |
| RAM Size | 128 x 8 bytes |
| Data EEPROM | Not present (OTP only) |
| Frequência máxima de clock | 10 MHz |
| Instruction Cycle Time | 200 ns at 10 MHz |
| Number of I/O Pins | 33 |
| Supply Voltage (VDD) | 2.5 V to 6.0 V |
| Faixa de temperatura de operação | -40 C to +85 C (Industrial, "I") |
| Encapsulamento / Caixa | 44-TQFP (10 x 10 mm), surface mount |
| Tipo de montagem | Surface Mount |
| On-chip Peripherals | USART, Parallel Slave Port, 2x CCP, TMR0/1/2, WDT, BOR |
| I/O Pin Source/Sink Current | 25 mA per pin |
| Status RoHS | Compliant (Pb-free TQFP) |
Configuração de pinos do PIC16C64A-10I/PT
| Pino 1 | MCLR/VPP — Master Clear (reset) input / 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 — PORTA bit 2 / Analog input 2 |
| Pino 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / VREF |
| Pino 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 7 | RA5/SS/AN4 — PORTA bit 5 / Slave Select / Analog input 4 |
| Pino 8 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| Pino 9 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Pino 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / clock in |
| Pino 11 | VDD — Positive supply (+2.5V to +6.0V) |
| Pino 12 | VSS — Ground reference |
| Pino 13 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Pino 14 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Pino 15 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 16 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Pino 17 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Pino 18 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Pino 19 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Pino 20 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Pino 21 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Pino 22 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Pino 23 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Pino 24 | VSS — Ground reference (second) |
| Pino 25 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 26 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 27 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Pino 28 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Pino 29 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave read / Analog input 5 |
| Pino 30 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave write / Analog input 6 |
| Pino 31 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave chip select / Analog input 7 |
| Pino 32 | VDD — Positive supply (+2.5V to +6.0V) (second) |
| Pino 33 | VSS — Ground reference (third) |
| Pino 34 | RB0/INT — PORTB bit 0 / External interrupt |
| Pino 35 | RB1 — PORTB bit 1 |
| Pino 36 | RB2 — PORTB bit 2 |
| Pino 37 | RB3 — PORTB bit 3 |
| Pino 38 | RB4 — PORTB bit 4 |
| Pino 39 | RB5 — PORTB bit 5 |
| Pino 40 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pino 41 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pino 42 | VSS — Ground reference (fourth) |
| Pino 43 | VDD — Positive supply (+2.5V to +6.0V) (third) |
| Pino 44 | NC — Not connected (per datasheet) |
Aplicações típicas
PIC16C64A-10I/PT é adequado para 6 aplicaçãos: Industrial Control Panels, Home Appliance Control Boards, Automotive Body Electronics (Non-Safety), Simple Sensor Interface Hubs, Low-Cost Consumer Electronics, Legacy Industrial Modem and Communication Modules.
Industrial Control Panels
The PIC16C64A-10I/PT's industrial -40C to +85C temperature range, 33 I/O lines, and integrated USART make it a strong fit for industrial control panels driving relays, keypads, and seven-segment displays. The 10 MHz instruction cycle executes a scan loop in well under 1 ms, supporting deterministic button-debounce and indicator refresh. Its 25 mA per-pin source/sink can drive optocouplers and small 5 V relays directly without external drivers. OTP memory locks the control firmware, preventing field tampering with safety logic. Compared with flash MCUs, the OTP-based PIC16C64A is preferred for high-volume panel builders where firmware is fixed after release.
Recomendado
Home Appliance Control Boards
White-goods appliance boards (washing machines, dishwashers, microwave ovens) use PIC16C64A-10I/PT because its 33 I/O directly drive seven-segment LEDs, triac interfaces for motor control, and buzzer/relay outputs without external glue logic. The 200 ns instruction cycle handles real-time sensor sampling (temperature, water level, door switch) while the USART connects to an inverter display board. OTP storage locks the safety-critical wash-cycle algorithm. The 44-TQFP (10x10 mm) package fits the compact main boards typical of front-load washers.
Recomendado
Automotive Body Electronics (Non-Safety)
In non-safety body modules (window lifts, seat controllers, HVAC panel logic), the PIC16C64A-10I/PT provides reliable 33-channel I/O and a hardware USART for LIN-bus slave communication at 10 MHz. Its 2.5 V to 6.0 V supply tolerates automotive cranking transients when paired with a simple TVS clamp, and the 25 mA per-pin drive directly switches small solenoid coils. The OTP memory prevents unauthorized reflashing of seat-position memory. Note: for safety-critical body modules (airbag, ABS), migrate to AEC-Q100-qualified PIC16F-series parts.
Recomendado
Simple Sensor Interface Hubs
Sensor-interface boards for HVAC, agricultural monitoring, and small instrumentation use the PIC16C64A-10I/PT to read analog sensors via external ADC, drive RS-232/RS-485 transceivers through the USART, and run calibration constants stored in firmware. The 10 MHz speed completes a multi-channel scan in under 500 us, supporting 1 kHz update rates. With 33 I/O, the MCU can monitor 8 to 12 sensor inputs plus 4 control outputs on a single chip, lowering BOM cost. The 44-TQFP package is friendly to mixed-signal 4-layer boards.
Recomendado
Low-Cost Consumer Electronics
High-volume consumer products (toys, educational devices, simple remote controls, small kitchen appliances) use PIC16C64A-10I/PT because the OTP program memory eliminates field-reprogramming risk and minimizes per-unit cost. The 33 I/O drive IR LEDs, keypads, buzzers, and seven-segment displays directly. A 10 MHz instruction cycle handles NEC-style IR decode and protocol parsing in real time. The 44-TQFP (10x10 mm) reflows cleanly on standard SMT lines.
Recomendado
Legacy Industrial Modem and Communication Modules
Older industrial modems and RS-232/RS-485 communication modules use the PIC16C64A-10I/PT for its integrated USART, 10 MHz processing headroom, and 33 I/O for status LEDs, DIP-switch configuration, and handshake lines. The PIC16C64A's Parallel Slave Port allows the host processor to offload protocol framing to the PIC. With OTP firmware, the protocol stack cannot be reverse-engineered by reading flash contents - a meaningful security property for proprietary industrial networks. Migration to PIC16F74-I/PT is recommended for new modem designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16C64A-10I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16C64A-10/PT | PIC16C64A-04I/PT | PIC16C64A-04E/PT | PIC16F74-I/PT | PIC16C65B-10I/PT |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 4 KB Flash | 7 KB OTP |
| RAM | 128 B | 128 B | 128 B | 128 B | 192 B | 192 B |
| Max Clock | 10 MHz | 10 MHz | 4 MHz | 4 MHz | 10 MHz | 10 MHz |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Temp Range | -40C to +85C | 0C to +70C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Memory Type | OTP | OTP | OTP | OTP | Flash | OTP |
| Lifecycle | NRND | NRND | NRND | NRND | Active | Active (recommended) |
Principais diferenciais
- Largest program memory in PIC16C64A OTP family (vs PIC16C64A-04I/PT)
- Industrial -40C to +85C operating range (vs PIC16C64A-10/PT)
- Flash-based drop-in successor exists (vs PIC16F74-I/PT)
Notas de projeto
The PIC16C64A-10I/PT has four VDD pins (11, 32, 43 and pin 1 MCLR pulled high) and four VSS pins (12, 24, 31, 33, 42) on the 44-TQFP. Place a 0.1 uF decoupling capacitor within 5 mm of each VDD/VSS pair, plus a single bulk 10 uF tantalum or ceramic at the board's power entry. Tie MCLR through a 10 kohm pull-up to VDD and add a 100 nF cap to ground for clean reset. Do not exceed the absolute maximum 7.0 V on VDD - add a TVS clamp for automotive load-dump environments.
Route the 10 MHz crystal traces (OSC1 pin 8 / OSC2 pin 9) within 5 mm of the MCU, keep them short and symmetric, and guard them with a ground pour on both sides. Avoid routing high-current relay traces parallel to the crystal traces to prevent injected noise. If using an external canned oscillator instead of a crystal, drive OSC1 only and leave OSC2 floating. Place the ICSP programming header (PGD on pin 41, PGC on pin 40, MCLR/VPP on pin 1) on a 0.1 inch single-row connector at the board edge for production programming.
Three pitfalls engineers commonly hit with the PIC16C64A-10I/PT: (1) Confusing speed grades - a 04I/PT only runs up to 4 MHz, so a 10 MHz crystal will not oscillate reliably; (2) Assuming parallel port behavior - the Parallel Slave Port on PORTD/PORTE requires correct TRIS register setup or reads will return 0; (3) I/O source/sink derating - although each pin is rated 25 mA, the total VDD source current (sum of all pins) is limited to 200 mA per datasheet DS30235D. Always check absolute maximum tables before designing high-current LED matrices.
The PIC16C64A-10I/PT in the 44-TQFP package has a junction-to-ambient thermal resistance (theta_JA) of approximately 50 C/W on a standard 4-layer JEDEC test board. At maximum quiescent current of 5 mA at 5 V, the self-heating is only 25 mW (negligible). However, when sourcing 25 mA on all 33 I/O simultaneously, total I/O power can reach 4 W, raising the junction temperature significantly above ambient. For LED-matrix applications, distribute the load across PORTs and provide a copper ground pour on the top layer under the TQFP thermal pad area.
Informações de conformidade
RoHS-compliant Pb-free 44-TQFP package per Microchip product page. Not AEC-Q100 qualified - not intended for safety-critical automotive. Lifecycle status: NRND (Not Recommended for New Designs) per Microchip PIC16C64A product page.
