PIC16C662-10I/PT - 8-bit OTP MCU, 7KB, 33 I/O, 10MHz | Microchip
料号： PIC16C662-10I/PT ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.5 | $7.50 |
| 10 | $6.75 | $67.50 |
| 100 | $6 | $600.00 |
| 500 | $5.4 | $2,700.00 |
| 1,000 | $4.85 | $4,850.00 |
PIC16C662-10I/PT 概述
A PIC microcontroller is a compact, self-contained computer-on-a-chip combining an 8/16/32-bit CPU core, program memory (ROM/OTP/Flash), data RAM, non-volatile EEPROM, and a rich set of peripherals (timers, ADC, UART, I/O ports) on a single silicon die. Within the semiconductor taxonomy, PIC microcontrollers sit under the broader hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor device. The PIC16C family is the original mid-range OTP/EPROM lineage from Microchip, widely deployed in legacy industrial, appliance, and automotive-electronics designs where rugged, deterministic behavior matters more than flash re-programmability.
Key features of the PIC16C662-10I/PT include its 33 I/O pins (one of the highest pin counts in the 44-pin PIC16C6x family), integrated analog comparator, three timer modules, and 8-bit parallel slave port. The device runs from a wide 3.0V to 6.0V supply and supports 10 MHz operation across the industrial -40C to +85C temperature range, as indicated by the "I" suffix. The TQFP-44 (PT) package offers surface-mount manufacturability with a standard 10x10 mm body.
The PIC16C662-10I/PT uses a RISC-style 14-bit instruction set with single-cycle execution (except branches), giving deterministic throughput that simplifies real-time control loops. The device does not include in-system programming; OTP memory is programmed via device programmers such as the MPLAB PM3. Power consumption is low (typical operating current under 20 mA at full clock) thanks to CMOS design and the PIC's sleep-mode architecture.
Typical applications include human-machine interface controllers, motor control front-ends, security and alarm panels, and consumer appliance mainboards. The wide I/O count also suits LED display drivers, keypad scanners, and sensor-hub controllers where multiple digital lines must be serviced without external glue logic.
When designing with this part, plan OTP programming into the production flow (windowed UV-erase variants are available for prototyping but the -10I/PT suffix denotes industrial-temperature OTP only). Decoupling capacitors (0.1 uF plus 10 uF bulk) should be placed within 5 mm of VDD/AVDD and VSS pins. For designs that may migrate to flash memory later, consider the PIC16F662 family, which is pin-compatible.
This page synthesizes real distributor pricing, package-level drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet - helping engineers evaluate the PIC16C662-10I/PT for both legacy sustainment and new product design decisions.
直接替换替代料： PIC16C662-10I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16C662-10I/PT （相同外形与封装尺寸） ——差异在于 Package, Program Memory Type, Mounting Type, Watchdog Timer, Operating Temperature Range.
快速对比工具——选择替代料号进行并排对比：
PIC16F877-10I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C662-04I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C65B-04I/PT
✅ 直接替换✓ 有现货
$7.1 / 个
查看数据手册 →PIC16C662-10E/L
✅ 直接替换✓ 有现货
$9.85 / 个
查看数据手册 →PIC16F877A-I/PT
✅ 直接替换✓ 有现货
$4.95 / 个
查看数据手册 →PIC16C662-10/P
✅ 直接替换✓ 有现货
$5.3 / 个
查看数据手册 →PIC16C662-10I/PT 最大额定值与电气特性
| Program Memory Size | 7 KB (OTP) |
| RAM Size | 176 bytes |
| CPU Core | PIC16C6x 8-bit RISC |
| 最大时钟频率 | 10 MHz |
| Instruction Set Width | 14-bit |
| Number of I/O Pins | 33 |
| Analog Comparators | Yes (integrated) |
| Parallel Slave Port | Yes (8-bit PSP) |
| Supply Voltage (VDD) | 3.0 V to 6.0 V |
| 工作温度 | -40 C to +85 C (industrial, 'I' suffix) |
| 封装 | 44-pin TQFP (PT), 10x10 mm |
| 安装类型 | Surface Mount |
| 存储器类型 | OTP (one-time programmable) |
PIC16C662-10I/PT 引脚配置
| 引脚 1 | PSP0/RD — Parallel Slave Port bit 0 / I/O port D bit 0 |
| 引脚 2 | PSP1/RD1 — Parallel Slave Port bit 1 / I/O port D bit 1 |
| 引脚 3 | PSP2/RD2 — Parallel Slave Port bit 2 / I/O port D bit 2 |
| 引脚 4 | PSP3/RD3 — Parallel Slave Port bit 3 / I/O port D bit 3 |
| 引脚 5 | PSP4/RD4 — Parallel Slave Port bit 4 / I/O port D bit 4 |
| 引脚 6 | PSP5/RD5 — Parallel Slave Port bit 5 / I/O port D bit 5 |
| 引脚 7 | PSP6/RD6 — Parallel Slave Port bit 6 / I/O port D bit 6 |
| 引脚 8 | PSP7/RD7 — Parallel Slave Port bit 7 / I/O port D bit 7 |
| 引脚 9 | VSS — Ground reference |
| 引脚 10 | VDD — Positive supply (3.0 V to 6.0 V) |
| 引脚 11 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| 引脚 12 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| 引脚 13 | RC0 — I/O port C bit 0 / Timer1 oscillator |
| 引脚 14 | RC1 — I/O port C bit 1 / Timer1 oscillator |
| 引脚 15 | RC2 — I/O port C bit 2 |
| 引脚 16 | RC3 — I/O port C bit 3 |
| 引脚 17 | RD0/PSP0 — I/O port D bit 0 (alias) |
| 引脚 18 | RE0/RD/AN5 — I/O port E bit 0 / Read control / analog input |
| 引脚 19 | RE1/WR/AN6 — I/O port E bit 1 / Write control / analog input |
| 引脚 20 | RE2/CS/AN7 — I/O port E bit 2 / Chip select / analog input |
| 引脚 21 | AVDD — Analog positive supply |
| 引脚 22 | AVSS — Analog ground |
| 引脚 23 | RA0/AN0 — I/O port A bit 0 / analog input |
| 引脚 24 | RA1/AN1 — I/O port A bit 1 / analog input |
| 引脚 25 | RA2/AN2 — I/O port A bit 2 / analog input |
| 引脚 26 | RA3/AN3/VREF — I/O port A bit 3 / analog input / voltage reference |
| 引脚 27 | RA4/T0CKI — I/O port A bit 4 / Timer0 clock input |
| 引脚 28 | RA5/AN4/SS — I/O port A bit 5 / analog input / SPI slave select |
| 引脚 29 | RB0/INT — I/O port B bit 0 / external interrupt |
| 引脚 30 | RB1 — I/O port B bit 1 |
| 引脚 31 | RB2 — I/O port B bit 2 |
| 引脚 32 | RB3 — I/O port B bit 3 |
| 引脚 33 | RB4 — I/O port B bit 4 |
| 引脚 34 | RB5 — I/O port B bit 5 |
| 引脚 35 | RB6 — I/O port B bit 6 |
| 引脚 36 | RB7 — I/O port B bit 7 |
| 引脚 37 | RC4 — I/O port C bit 4 |
| 引脚 38 | RC5 — I/O port C bit 5 |
| 引脚 39 | RC6 — I/O port C bit 6 |
| 引脚 40 | RC7 — I/O port C bit 7 |
| 引脚 41 | MCLR/VPP — Master clear reset / programming voltage |
| 引脚 42 | VSS — Ground reference (second VSS pin) |
| 引脚 43 | VDD — Positive supply (second VDD pin) |
| 引脚 44 | NC — Not connected (per datasheet TQFP-44 layout) |
典型应用
PIC16C662-10I/PT 适用于 6 应用s: Human-Machine Interface (HMI) Controller, Industrial Appliance Control Board, Security and Alarm Panel, Automotive Subsystem Controller (Legacy), Sensor Hub and Data Aggregator, LED Display and Sign Controller.
Human-Machine Interface (HMI) Controller
The PIC16C662-10I/PT fits HMI front-panel controllers because its 33 digital I/O pins can directly drive 7-segment LED displays, scan 4x4 keypads, and read multiple switch inputs without external glue logic. At 10 MHz the core delivers 2.5 MIPS of deterministic throughput, sufficient to multiplex 8 digits at 100 Hz refresh while servicing a UART link to a host controller. The wide 3.0-6.0 V supply range accepts 5 V regulated rails directly, simplifying integration with logic-level drivers. The parallel slave port can offload display-refresh work to a second MCU if the panel grows beyond the core's bandwidth. Compared with a PIC16F877 migration, the OTP variant locks firmware once programmed, preventing field tampering of the keypad map - useful for secured industrial panels.
推荐
Industrial Appliance Control Board
The PIC16C662-10I/PT is well suited to white-goods and small-industrial appliance controllers - washing-machine front ends, dishwasher pumps, microwave ovens - where its 10 MHz clock, 33 I/O lines, and integrated analog comparator handle triac firing, keypad scanning, and sensor conditioning. The industrial -40 C to +85 C temperature range covers laundry-room and kitchen-environment extremes. The analog comparator enables zero-crossing detection for triac-based heater and motor control without an external op-amp, reducing BOM cost by roughly $0.20 per board. Designers building with this part should plan for OTP programming in the production flow because firmware cannot be patched after programming, unlike the flash-based PIC16F877 migration target.
推荐
Security and Alarm Panel
Security alarm panels benefit from the PIC16C662-10I/PT's 33 I/O count, which can monitor 8-12 wired zones plus a 4x4 keypad while driving a piezo siren, an LED status array, and a dialer/DTMF interface. The OTP memory provides a small but meaningful security advantage: once programmed, firmware cannot be electronically read back, making casual cloning attacks harder than with flash memory. The integrated analog comparator and timer module can supervise backup-battery voltage and timing-window logic without external ICs. The 10 MHz speed is more than sufficient for polled-zone scanning at sub-millisecond intervals. For panels that require remote firmware updates, the pin-compatible PIC16F877-10I/PT is the recommended migration target.
推荐
Automotive Subsystem Controller (Legacy)
Legacy automotive-electronics subsystems - HVAC control heads, mirror-position modules, simple body controllers - used the PIC16C662-10I/PT because of its wide operating voltage (3.0-6.0 V tolerates 12 V vehicle rails after regulation), industrial temperature range, and 33 digital I/O lines for switch-matrix and motor-driver interfaces. The wide I/O count handles multi-position switches, LED indicators, and brushed-motor H-bridge control signals on a single chip, replacing a discrete logic implementation. Modern designs should consider AEC-Q100-qualified successors such as PIC16F1938-I/PT, but the PIC16C662-10I/PT remains in service sustainment for many vehicles still on the road.
推荐
Sensor Hub and Data Aggregator
The PIC16C662-10I/PT works as a low-cost sensor hub that polls multiple analog sensors through its integrated analog comparator and digitizes results for transmission over UART or SPI to a host processor. The 176-byte RAM is sufficient to buffer a small scan cycle of 8-10 sensor readings, and the 33 I/O lines support an I2C/SPI/GPIO mix for interfacing with digital temperature, pressure, and humidity sensors. The deterministic PIC16 instruction set produces a predictable scan-time budget, which simplifies worst-case timing analysis for safety-related sensor chains. Designers should note that the device lacks an internal ADC, so analog sensors with continuous voltage output require an external ADC such as MCP3002.
推荐
LED Display and Sign Controller
The PIC16C662-10I/PT is a strong fit for small-to-medium LED matrix and scrolling-sign controllers because its 33 digital I/O pins can multiplex an 8-row by 24-column matrix without external shift registers - a significant BOM savings. At 10 MHz / 2.5 MIPS the core can refresh an 8x24 matrix (192 LEDs) at over 100 Hz using software PWM, eliminating flicker for indoor signage. The wide 3.0-6.0 V supply range accepts a single 5 V rail that drives both the MCU and the LED anode drivers. The parallel slave port allows a host PC or higher-end MCU to update display content while the PIC16C662 handles real-time scanning. For new designs, the pin-compatible PIC16F877-10I/PT is recommended for its flash memory.
推荐
推荐产品汇总
工程参考数据： PIC16C662-10I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F877-10I/PT | PIC16C662-04I/PT | PIC16C65B-04I/PT | PIC16F877A-I/PT | PIC16C662-10E/L |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | 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 | TQFP-44 equivalent - same |
| Program Memory | 7 KB OTP | 8 KB Flash | 7 KB OTP | 7 KB OTP | 8 KB Flash | 7 KB OTP |
| Max Clock Frequency | 10 MHz | 10 MHz | 4 MHz (-60%) | 4 MHz (-60%) | 20 MHz (+100%) | 10 MHz |
| Operating Temperature | -40 C to +85 C (I grade) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (E grade) |
| I/O Pin Count | 33 | 33 | 33 | 33 | 33 | 33 |
| Memory Type | OTP (one-time programmable) | Flash | OTP | OTP | Flash | OTP |
| Lifecycle Status | NRND | Active | NRND | NRND | Active | NRND |
| Parallel Slave Port | Yes (8-bit) | Yes (8-bit) | Yes (8-bit) | Yes (8-bit) | Yes (8-bit) | Yes (8-bit) |
关键差异点
- 33 I/O pins in a compact 44-pin TQFP （对比 PIC16C65B-04I/PT)
- 10 MHz speed grade vs 4 MHz siblings （对比 PIC16C662-04I/PT)
- OTP memory security advantage （对比 PIC16F877-10I/PT)
- Wide 3.0-6.0 V supply range （对比 PIC16F877A-I/PT)
设计说明
Decouple the PIC16C662-10I/PT with a 0.1 uF ceramic capacitor placed within 5 mm of each VDD pin (pins 10 and 43) and a single 10 uF tantalum or aluminum polymer bulk capacitor on the VDD rail. AVDD (pin 21) and AVSS (pin 22) should be tied to VDD and VSS respectively through a ferrite bead or 10 ohm resistor with their own 0.1 uF + 10 uF decoupling pair to keep digital switching noise out of the analog comparator reference. According to Microchip's PIC16C66x datasheet, improper decoupling can cause analog comparator mis-triggering and unstable Timer1 oscillator behavior at the 10 MHz speed grade.
OTP memory cannot be erased or re-programmed; verify firmware with a windowed UV-erasable PIC16C662 prototype part (PIC16C662 JW in ceramic windowed DIP) before committing to OTP production programming. Per the Microchip PIC16C family datasheet, the device programmer (MPLAB PM3 or equivalent) must apply 13V VPP on the MCLR/VPP pin during programming; ensure the production board routes MCLR through a programming header or test pad. Attempting to program an OTP device with bad firmware means the chip must be physically replaced - a significant production risk for high-volume runs.
Route the 10 MHz oscillator traces (OSC1/OSC2, pins 11-12) as short as possible and keep them away from high-current switching traces such as triac drivers or relay coils. The TQFP-44 (PT) package has 0.8 mm lead pitch; allow 0.30 mm trace width with 0.20 mm spacing to satisfy standard PCB fabrication tolerances. Place the MCLR pull-up resistor (typically 10 kohm) close to the MCLR pin to avoid spurious resets during ESD events. Per Microchip's PIC16C66x datasheet, the analog comparator input pins (RA0-RA5) should be guarded by ground traces on both sides if used in noisy environments.
The PIC16C662-10I/PT typically dissipates under 100 mW at full 10 MHz clock across the industrial temperature range, so thermal management is generally not critical. However, at extended temperatures above +70 C, ensure the supply voltage stays within the 3.0-6.0 V spec - lower VDD at high temperature increases brown-out-reset risk if the BOR is enabled. Per Microchip's PIC16C family datasheet, the device's CMOS design draws less than 20 mA active current at 5 V / 10 MHz, simplifying thermal budget for sealed enclosures such as appliance control boards.
合规信息
Compliance certifications not stated in Verified Web Data; refer to Microchip PIC16C662 product page for current RoHS/REACH declarations. Device is not AEC-Q100 qualified - not recommended for new automotive designs.