MC68SEC000AE16 - 32-Bit 16MHz Static MPU | NXP/Freescale | LQFP-64
料号： MC68SEC000AE16 ⚠ 最后一次采购| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.2 | $252.00 |
| 100 | $21.75 | $2,175.00 |
| 500 | $18.4 | $9,200.00 |
| 1,000 | $15.95 | $15,950.00 |
MC68SEC000AE16 概述
A microprocessor (MPU) is an integrated processor that fetches, decodes, and executes instructions from external memory, distinguishing it from a microcontroller (MCU) which integrates peripherals and memory on-chip. The M68000 architecture is a 32-bit CISC ISA with a 16-bit external data bus and 24-bit external address bus on this variant, originally introduced in 1979 and still deployed in long-lifecycle industrial, automotive, and aerospace systems. The MC68SEC000 sits in the broader taxonomy: 32-bit microprocessor -> M68000 family -> CISC CPU -> processor IC -> semiconductor.
Key features include a 16 MHz maximum clock, fully static operation for clock-stopped low-power modes, 8-/16-bit selectable external data bus, 24-bit address bus (16 MB linear address space), seven 32-bit data registers and eight 32-bit address registers (A0-A7 plus user stack pointer), six programmable interrupt priority levels, and pin-for-pin compatibility with the MC68EC000. The device supports the full M68000 instruction set including multiply and divide, and bus arbitration logic is integrated for multimaster systems.
Architecturally, the MC68SEC000AE16 uses a HCMOS process, with separated 16-bit data and 24-bit address buses. The static core allows the CLK signal to be stopped for indefinite periods without state loss, enabling sleep modes in battery-backed industrial installations. The 16 MHz version delivers approximately 2.1 MIPS sustained throughput and is the highest-speed grade available in the SEC000 family.
Typical applications include industrial control PLCs, factory automation controllers, medical instrumentation, point-of-sale terminals, aerospace flight control retrofits, automotive body controllers, embedded instrumentation, and legacy communications equipment. The combination of 32-bit processing power with low static power consumption makes it ideal for systems that need M68000 software compatibility with relaxed thermal budgets.
Design consideration: the MC68SEC000AE16 requires an external clock source (crystal or oscillator) on the CLK pin, and external bus logic for memory and peripherals. The fully static core permits clock stretching or complete clock stop for low-power standby without losing register state - a key differentiator versus the older MC68000 which was not static.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives within the M68000 family, and practical design notes for static low-power operation not directly stated in a single manufacturer datasheet.
直接替换替代料： MC68SEC000AE16 ——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： MC68SEC000AE16 （相同外形与封装尺寸） ——差异在于 Address Bus Width, Data Bus Width, Internal Registers, Interrupt Levels, Maximum Clock Frequency.
快速对比工具——选择替代料号进行并排对比：
MC68SEC000AE10
✅ 直接替换📋 参考替代料（不在目录中）
MC68SEC000AE8
✅ 直接替换📋 参考替代料（不在目录中）
MC68SEC000AE20
✅ 直接替换✓ 有现货
$7.4 / 个
查看数据手册 →MC68SEC000AE16 最大额定值与电气特性
| Core Architecture | M68000 (CISC, 32-bit) |
| Family | EC000 / SEC000 series |
| Number of Cores | 1 |
| 数据总线宽度 | 8/16-bit selectable (external) |
| Internal Registers | 32-bit |
| Address Bus Width | 24-bit (16 MB linear) |
| 最大时钟频率 | 16 MHz |
| Operating Mode | Fully static (clock-stoppable) |
| Instruction Set | M68000 (subset) |
| Interrupt Levels | 7 programmable priority levels |
| 电源电压 | 5 V |
| 工作温度 | 0C to +70C (commercial) |
| 封装 | 64-LQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| AEC-Q100 | not_applicable |
MC68SEC000AE16 64-lqfp (10x10 mm) 引脚配置指南
MC68SEC000AE16（64-lqfp (10x10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： MC68SEC000AE16.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC68SEC000AE16 适用于 6 应用s: Industrial PLC and Factory Automation Controllers, Medical Instrumentation and Diagnostic Equipment, Point-of-Sale Terminals and Retail Peripherals, Aerospace Flight Control Retrofits and Avionics, Embedded Industrial Instrumentation and Data Loggers, Legacy Communications Equipment and Protocol Converters.
Industrial PLC and Factory Automation Controllers
The MC68SEC000AE16 is well-matched to industrial PLCs where 32-bit processing power is needed but standby power consumption must be minimized. Its fully static core allows the system clock to be stopped during sensor polling or low-activity periods, dropping CPU active current to near zero while preserving all register state - critical for battery-backed or solar-powered remote controllers. The 16 MHz throughput of approximately 2.1 MIPS is sufficient for ladder-logic scan times and PID loop execution at 10 ms intervals. Pin compatibility with the MC68EC000 lets factories qualify a single PCB layout for both static and non-static variants.
推荐
Medical Instrumentation and Diagnostic Equipment
Medical instruments requiring deterministic 32-bit processing with long product lifecycles often select the MC68SEC000AE16. Its commercial-grade temperature range (0C to +70C) covers the controlled environment of clinical benches, and the 24-bit address space supports addressing large patient-data buffers in external SRAM without memory-mapping complexity. The static core is valuable for battery-powered portable monitors that idle between measurements. M68000 software compatibility means mature medical imaging and signal-processing codebases from earlier 68000 designs can be recompiled with minimal porting effort, shortening regulatory submission timelines.
推荐
Point-of-Sale Terminals and Retail Peripherals
POS terminals need 32-bit processing for transaction encryption and barcode handling but operate from low-power retail back-office supplies. The MC68SEC000AE16's 5 V supply and 16 MHz throughput easily handle terminal firmware with crypto libraries, while the static core allows clock-stopped idle between customer transactions - reducing system power draw by 80-90 percent during store downtime. The 64-LQFP package suits the surface-mount assembly lines typical of consumer-terminal contract manufacturers. Designers should pair with external secure-element ICs over SPI for PCI compliance.
推荐
Aerospace Flight Control Retrofits and Avionics
Legacy aerospace systems certified decades ago around the M68000 architecture are sustained today with the MC68SEC000AE16. Its deterministic instruction execution, traceable documentation, and stable long-term supply via authorized distributors like Rochester Electronics make it attractive for DO-178C retrofit programs. The static core simplifies power budgeting in avionics bays where thermal dissipation budgets are tight. The 64-LQFP package suits modern PCB stack-ups while remaining consistent with original 68-pin footprint PLCC designs via adapter boards if needed.
推荐
Embedded Industrial Instrumentation and Data Loggers
Battery-powered data loggers that sample slowly and sleep between acquisitions benefit from the MC68SEC000AE16's static core. When the timer interrupt fires, the system restarts the clock, runs the 32-bit acquisition and compression firmware at 16 MHz, then halts the clock back to zero system power - extending battery life from weeks to months. The 24-bit address bus is well-matched to external SRAM + NAND flash logger memory maps. Industrial-grade variants (industrial temperature range) are typically sourced under extended part numbers rather than the standard AE16 commercial-grade device.
推荐
Legacy Communications Equipment and Protocol Converters
Industrial communication gateways, RS-232 to Ethernet converters, and SCADA protocol bridges often embed the MC68SEC000AE16. The 32-bit performance handles multiple serial channels at 115200 baud while running TCP/IP stacks in external memory. The static core allows clock-stopped idle when no traffic is present, reducing thermal load in sealed industrial enclosures. Software written for the original 1980s-era M68000 boards can be recompiled with little change, protecting decades of field-tested protocol firmware investment.
推荐
推荐产品汇总
工程参考数据： MC68SEC000AE16 ——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 | MC68SEC000AE10 | MC68SEC000AE8 | MC68SEC000AE20 |
|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Maximum Clock Frequency | 16 MHz | 10 MHz | 8 MHz | 20 MHz |
| Core | M68000 (32-bit) | M68000 (32-bit) | M68000 (32-bit) | M68000 (32-bit) |
| Static Core | Yes (clock-stoppable) | Yes | Yes | Yes |
| Data Bus Width | 8/16-bit selectable | 8/16-bit selectable | 8/16-bit selectable | 8/16-bit selectable |
| Address Bus Width | 24-bit | 24-bit | 24-bit | 24-bit |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
关键差异点
- Fully static core permits clock-stopped standby （对比 MC68EC000 (non-static))
- Higher clock speed at same price tier （对比 MC68SEC000AE10)
- Lower unit cost than HC000 family （对比 MC68HC000)
设计说明
The static core of the MC68SEC000AE16 permits clock-stopped operation: gate or stretch the CLK input low to drop CPU active current to near zero while preserving all register state. This is the SEC000's primary advantage over the non-static MC68EC000. When bringing CLK back high, allow 2-3 clock cycles for the internal pipeline to refill before executing the first instruction. For battery-backed designs, plan the clock-gating logic with a glitch-free mux to avoid metastable register states.
The 64-LQFP 10x10 mm package has a 0.5 mm pitch - layout must use 0.2 mm trace/space design rules on inner layers and 0.15 mm rules on outer microvia layers. Provide at least 4 power/ground pairs distributed evenly around the perimeter (the M68000 has VCC and GND on many alternate pins to reduce inductance). Place a 100 nF decoupling cap within 3 mm of each VCC pin and a single 10 uF bulk cap near the package center.
The asynchronous bus handshake (DTACK, AS, UDS, LDS) is sensitive to reflection on the address/data bus at 16 MHz with 5 V CMOS levels. Place series damping resistors (22-33 ohm) close to the MPU on the address lines, especially when driving more than 2 loads or traces longer than 50 mm. For high-speed memory interfaces, add 10 kohm pull-ups to DTACK lines to prevent false termination during bus cycles when no slave responds.
Pin 1 orientation on the 64-LQFP must be verified against the package marking - some 68-pin LQFP variants have pin 1 in a different corner than the 64-pin variant. Also note that the data bus mode (8-bit vs 16-bit) is selected at RESET release by sampling DSACK0/DSACK1 - a 10 kohm pull-down or pull-up must hold these stable during reset or the bus width will be unpredictable. Allow a 100 ms reset extension via monostable if the power supply ramp is slow.
合规信息
Compliance data not present in verified web sources; parts in last-time-buy lifecycle are typically released before modern RoHS/REACH transitions. Consult NXP product PCN documentation via authorized distributor Rochester Electronics for definitive compliance certification.