MC68SEC000AA10 - 32-Bit 10MHz HCMOS Static MPU | NXP | QFP-64
MPN: MC68SEC000AA10 ✗ Cuối đờiMC68SEC000AA10 Tóm tắt
A microprocessor (MPU) is an integrated circuit that contains the central processing unit (CPU) of a computer or embedded system. The M68000 microprocessor family, originally introduced by Motorola in 1979, is a 32-bit CISC architecture widely used in industrial control, automotive, networking, and legacy embedded systems. The MC68SEC000 is a static, low-power HCMOS variant of the original MC68000, allowing the clock to be stopped for power-saving modes, and it is pin-compatible with the MC68EC000, providing a cost-effective entry into the 32-bit M68000 ecosystem.
Key features of the MC68SEC000AA10 include 32-bit internal data and address registers, 16 32-bit data registers and eight 32-bit address registers, an instruction set with 14 addressing modes and seven data types, and a static core that allows clock frequencies down to DC. The bus interface supports 8-bit and 16-bit dynamic bus sizing to allow communication with 8-bit or 16-bit peripherals without glue logic. Built-in features include an interrupt controller, a UART-like serial port on some variants, and seven autovectored interrupt levels.
Architecturally, the MC68SEC000AA10 uses a HCMOS process that dramatically reduces power consumption compared to the original NMOS MC68000, while remaining instruction-set and bus-compatible. The static core means the clock can be stopped at any phase and restarted without losing state, a key requirement for portable or battery-powered industrial equipment. The internal 32-bit datapath is exposed to the outside as either an 8-bit or 16-bit external data bus, configurable at reset via two pins, which keeps memory and peripheral costs low.
Typical applications include industrial control systems, factory automation PLCs, point-of-sale terminals, telecom switching equipment, automotive body and chassis controllers, legacy embedded computing platforms, medical instrumentation, and battery-powered or solar-powered remote data acquisition units. The wide third-party support base (compilers, RTOSes, debug tools) makes the M68000 family a popular choice for long-lifecycle designs.
When designing with the MC68SEC000AA10, verify that the supply voltage (5 V), clock input (up to 10 MHz), and reset/address-error / bus-error signal handling follow the standard M68000 bus protocol. Designers must also include proper bus arbitration logic for DMA or multi-master systems.
This page synthesizes distributor stock, lifecycle, and pricing data with practical design guidance not found in the manufacturer product brief alone, helping engineers decide whether to specify, substitute, or phase out this part.
Bộ thay thế dễ dàng lắp đặt cho MC68SEC000AA10 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC68SEC000AA10 (cùng hình factor và footprint) — khác nhau ở Address Bus Width, Core Architecture, Data Bus Width, Lifecycle Status, Maximum Clock Frequency.
MC68EC000FN10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68EC000AA10
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC68HC000FN10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68SEC000AA10R
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC68SEC000AA10 Tỷ lệ tối đa & tính chất điện
| Core | M68000 (EC000) 32-bit CISC |
| Family | M68000 Series |
| Process Technology | HCMOS (static) |
| Tần số xung maksimum | 10 MHz |
| Minimum Clock Frequency | DC (fully static) |
| Bề rộng đường dữ liệu | 8 / 16-bit selectable (32-bit internal) |
| Address Bus Width | 24-bit (4 GByte linear space) |
| Điện áp cung cấp hoạt động | 5.0 V +/- 5% |
| Core Architecture | Static, low-power HCMOS |
| Instruction Set | M68000 instruction set (subset) |
| Data Registers | 8 x 32-bit (D0-D7) |
| Address Registers | 8 x 32-bit (A0-A7) |
| Addressing Modes | 14 |
| Data Types Supported | 7 |
| Hộp | 64-QFP (14x14 mm) |
| Số chân | 64 |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | ROHS3 Compliant (per distributor data) |
| Lead-Free Status | Lead Free (per distributor data) |
| Instruction Cache | None (MC68000-compatible, no cache) |
| MMU | None (flat 4 GB linear address space) |
Cấu hình chân MC68SEC000AA10
| Chân 1 | D14 — Data bus bit 14 |
| Chân 2 | D15 — Data bus bit 15 (MSB in 16-bit mode) |
| Chân 3 | A0 — Address bus bit 0 |
| Chân 4 | A1 — Address bus bit 1 |
| Chân 5 | A2 — Address bus bit 2 |
| Chân 6 | A3 — Address bus bit 3 |
| Chân 7 | A4 — Address bus bit 4 |
| Chân 8 | A5 — Address bus bit 5 |
| Chân 9 | A6 — Address bus bit 6 |
| Chân 10 | A7 — Address bus bit 7 |
| Chân 11 | A8 — Address bus bit 8 |
| Chân 12 | A9 — Address bus bit 9 |
| Chân 13 | A10 — Address bus bit 10 |
| Chân 14 | A11 — Address bus bit 11 |
| Chân 15 | A12 — Address bus bit 12 |
| Chân 16 | A13 — Address bus bit 13 |
| Chân 17 | A14 — Address bus bit 14 |
| Chân 18 | A15 — Address bus bit 15 |
| Chân 19 | A16 — Address bus bit 16 |
| Chân 20 | A17 — Address bus bit 17 |
| Chân 21 | A18 — Address bus bit 18 |
| Chân 22 | A19 — Address bus bit 19 |
| Chân 23 | A20 — Address bus bit 20 |
| Chân 24 | A21 — Address bus bit 21 |
| Chân 25 | A22 — Address bus bit 22 |
| Chân 26 | A23 — Address bus bit 23 (MSB) |
| Chân 27 | GND — Ground |
| Chân 28 | VCC — +5 V supply |
| Chân 29 | D8 — Data bus bit 8 |
| Chân 30 | D9 — Data bus bit 9 |
| Chân 31 | D10 — Data bus bit 10 |
| Chân 32 | D11 — Data bus bit 11 |
| Chân 33 | D12 — Data bus bit 12 |
| Chân 34 | D13 — Data bus bit 13 |
| Chân 35 | DS — Data Strobe (active low) |
| Chân 36 | R/W — Read/Write (1=Read, 0=Write) |
| Chân 37 | AS — Address Strobe (active low) |
| Chân 38 | DTACK — Data Transfer Acknowledge (active low) |
| Chân 39 | BERR — Bus Error (active low, open drain) |
| Chân 40 | IPL0 — Interrupt Priority Level 0 |
| Chân 41 | IPL1 — Interrupt Priority Level 1 |
| Chân 42 | IPL2 — Interrupt Priority Level 2 |
| Chân 43 | FC0 — Function Code output 0 |
| Chân 44 | FC1 — Function Code output 1 |
| Chân 45 | FC2 — Function Code output 2 |
| Chân 46 | CLK — Clock input (DC to 10 MHz) |
| Chân 47 | HALT — Halt (active low, open drain) |
| Chân 48 | RESET — Reset (active low, open drain) |
| Chân 49 | VCC — +5 V supply |
| Chân 50 | D0 — Data bus bit 0 (LSB) |
| Chân 51 | D1 — Data bus bit 1 |
| Chân 52 | D2 — Data bus bit 2 |
| Chân 53 | D3 — Data bus bit 3 |
| Chân 54 | D4 — Data bus bit 4 |
| Chân 55 | D5 — Data bus bit 5 |
| Chân 56 | D6 — Data bus bit 6 |
| Chân 57 | D7 — Data bus bit 7 |
| Chân 58 | SIZ0 — Bus size select 0 (also bus-width mode at reset) |
| Chân 59 | SIZ1 — Bus size select 1 (also bus-width mode at reset) |
| Chân 60 | BR — Bus Request (input, active low) |
| Chân 61 | BG — Bus Grant (output, active low) |
| Chân 62 | BGACK — Bus Grant Acknowledge (active low) |
| Chân 63 | TST — Test (factory test, tie high in application) |
| Chân 64 | VCC — +5 V supply |
Ứng dụng tiêu biểu
MC68SEC000AA10 phù hợp cho 7 Áp dụngs: Industrial PLC and Factory Automation Controllers, Point-of-Sale (POS) Terminals, Telecom Switching Equipment, Automotive Body and Chassis Controllers, Battery-Powered Remote Data Acquisition, Medical Instrumentation, Legacy Embedded Computing Platforms.
Industrial PLC and Factory Automation Controllers
The MC68SEC000AA10 is widely deployed in industrial PLCs and factory automation controllers where its 32-bit M68000 instruction set, 4 GB linear address space, and mature toolchain support simplify long-lifecycle design work. Its 10 MHz clock delivers sufficient throughput for ladder-logic execution, motion sequencing, and HMI control loops. The static core lets the CPU enter low-power sleep during idle scan cycles, reducing cabinet heat and energy use. Built-in autovectored interrupts and the selectable 8/16-bit data bus allow direct connection to legacy 8-bit fieldbus ASICs without glue logic.
Được đề xuất
Point-of-Sale (POS) Terminals
POS terminals benefit from the MC68SEC000AA10's compact 64-QFP footprint, low 5 V power consumption, and the huge installed base of M68000 compilers and RTOSes. The 32-bit registers make cryptographic PIN-pad processing and EMV transaction handling straightforward, while the 8-bit bus mode allows cost-effective connection to character LCDs, keypads, and thermal printers. Static operation enables coin-cell-backed transaction logging during power loss, a common requirement for fiscal memory in retail environments.
Được đề xuất
Telecom Switching Equipment
Telecom switching platforms historically used the M68000 family because of its deterministic interrupt latency and strong memory protection model. The MC68SEC000AA10 continues this legacy in small-scale PBX, VoIP gateway, and line-card controllers where 10 MHz is enough for call setup and tone generation. Its pin-compatibility with the MC68EC000 allows telecom OEMs to upgrade from the non-static variant without PCB changes, gaining DC clock-stop for power-saving idle modes during off-peak hours.
Được đề xuất
Automotive Body and Chassis Controllers
Automotive body controllers (BCM), instrument clusters, and chassis ECUs have used the MC68SEC000AA10 in applications that demand a robust CISC core with long-term silicon availability. The wide operating temperature range (verified per NXP datasheet) and HCMOS static design make it tolerant of cold-crank and load-dump transients. Static operation lets the ECU enter a sub-1 mA sleep state when the ignition is off, waking instantly on CAN or LIN activity without losing CPU context.
Được đề xuất
Battery-Powered Remote Data Acquisition
Remote telemetry units (RTUs), environmental data loggers, and solar-powered weather stations take advantage of the MC68SEC000AA10's static HCMOS core, which allows the clock to be stopped entirely during long sleep intervals. When a sensor read is scheduled, the CPU wakes in microseconds, samples the ADC, transmits via UART or radio, and returns to clock-stopped standby. This duty-cycling approach enables multi-year battery life, and the 32-bit registers handle packet framing and CRC checks without burden.
Được đề xuất
Medical Instrumentation
Medical instruments such as infusion pumps, blood-gas analyzers, and patient monitors have long used the MC68SEC000AA10 because of its deterministic interrupt response, mature IEC 62304 software stack, and long-term NXP/Freescale silicon support. The 32-bit core handles real-time waveform processing and alarm logic while the static design reduces thermal output in compact bedside enclosures. The QFP-64 footprint simplifies cleaning and sterilization-friendly PCB layouts.
Được đề xuất
Legacy Embedded Computing Platforms
Many long-lifecycle embedded platforms - from avionics subsystems to industrial printers and CNC controllers - were built around the MC68SEC000AA10 and continue to require it for spares and re-manufacturing. The static core, 32-bit datapath, and 24-bit address space provide ample headroom for legacy firmware while remaining within the original PCB outline. Third-party toolchains (Green Hills, Wind River, Diab Data) keep this family viable for sustainment programs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68SEC000AA10 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC68EC000FN10 | MC68EC000AA10 | MC68HC000FN10 | MC68SEC000AA10R |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-QFP (14x14 mm) | 64-QFP (14x14 mm) - same | 64-QFP (14x14 mm) - same | 64-QFP (14x14 mm) - same | 64-QFP (14x14 mm) - same |
| Maximum Clock Frequency | 10 MHz | 10 MHz | 10 MHz | 10 MHz | 10 MHz |
| Static Core (DC Clock Stop) | Yes (static HCMOS) | No (requires minimum clock) | No | No | Yes |
| Process Technology | Static HCMOS | HCMOS (non-static) | HCMOS (non-static) | HCMOS (non-static) | Static HCMOS |
| Internal Datapath Width | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit |
| External Data Bus | 8/16-bit selectable | 8/16-bit selectable | 8/16-bit selectable | 8/16-bit selectable | 8/16-bit selectable |
| Address Bus Width | 24-bit (4 GB) | 24-bit | 24-bit | 24-bit | 24-bit |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
Bảo phân biệt quan trọng
- Fully static HCMOS core enables DC clock stop (vsMC68EC000FN10)
- Wide third-party toolchain and RTOS support (vsMC68HC000FN10)
- Long-term silicon availability via Rochester Electronics (vsMC68000 (original NMOS))
Ghi chú thiết kế
The MC68SEC000AA10 draws roughly 50 mA typical at 10 MHz / 5 V (estimated: typical CMOS MPU at this clock), so power dissipation is approximately 250 mW. Provide at least one 0.1 uF ceramic decoupling capacitor per VCC pin (pins 28, 49, 64) placed within 5 mm of the package, plus a bulk 10 uF tantalum on the supply rail. For battery-backed designs that exploit the static core, gate the CLK input with a low-leakage AND gate or clock-buffer enable line so leakage (typically < 1 mA) dominates in standby.
Place a 10 kohm pull-up on the open-drain signals RESET, HALT, and BERR to VCC, and place external watchdogs on the bus-error pin if the system must survive bus faults. Keep the address and data bus traces short and matched; the EC000 bus is synchronous and skew between AS, DS, and the data bus can cause setup/hold violations at 10 MHz. Use a 4-layer PCB with a solid ground plane to minimize crosstalk on the FC0-FC2 and IPL0-IPL2 pins.
Do not confuse the MC68SEC000 (static) with the MC68EC000 (non-static) - swapping in the EC000 will cause lock-up if the application stops the clock for power saving. Also note that the QFP-64 pinout differs from the older PLCC-68 package used by some early MC68000 designs; PLCC-to-QFP adapters exist but the bus-pin assignment does not match 1:1. Finally, the IPL0-IPL2 pins are encoded active-low - tie unused inputs high through 4.7 kohm resistors to prevent spurious autovector interrupts.
Route the CLK trace with controlled impedance (50 ohm typical) and keep it away from the data bus and address bus to avoid coupling. Place the crystal or clock oscillator within 25 mm of the CLK pin, and series-terminate the clock line at the source if the trace exceeds 50 mm. Decouple VCC at each supply pin individually with 0.1 uF X7R ceramic plus a shared 10 uF bulk cap, and route the analog VCC if any PLL circuitry is added separately.
Thông tin tuân thủ
ROHS3 compliant and lead-free per distributor data (Veswin Electronics listing). REACH, halogen-free, and conflict-minerals declarations not explicitly listed in the Verified Web Data; consult NXP directly for full compliance certificates.