MC68EC000CAA10 - 32-Bit 10MHz EC000 MPU | NXP 64-QFP
MPN: MC68EC000CAA10 ✓ فعالMC68EC000CAA10 نمای کلی
A microprocessor (MPU) is the central processing unit of an embedded computing system, executing instructions fetched from external memory. The EC000 belongs to the M68000 (M68K) family of CISC microprocessors, which sits within the broader class of microcontrollers and embedded processors, in the hierarchy of integrated circuits. Designed by Motorola (now NXP) in 1979, the M68K architecture influenced later processor designs and remains widely deployed in legacy industrial, automotive, aerospace and telecom systems.
Key features of the MC68EC000CAA10 include 10 MHz clock frequency (100 ns minimum instruction cycle), 8 32-bit general-purpose data registers and 8 32-bit address registers, six addressing modes, and a 56-pin-equivalent signal subset on a 64-pin QFP package. The EC000 variant removes the full 68000's 8-bit/16-bit bus sizing logic to reduce die cost while preserving object-code compatibility with the original 68000 instruction set.
Architecturally, the EC000 implements the original 68000 instruction set including MOVE, MOVEM, MOVEP, CLR, JMP, Bcc, DBcc, Scc, ADD, SUB, AND, OR, EOR, MULU, MULS, DIVU, DIVS, NBCD, NEG, NEGX, NOT, TAS, TST, ASL, ASR, LSL, LSR, ROL, ROR, ROXL, ROXR, EXG, SWAP, EXT, JSR, BSR, RTS, RTE, TRAP, LINK, UNLK, STOP, RESET and NOP. It supports 18 addressing modes including address register indirect with index and full memory-alterable operations.
Typical applications include industrial control systems, point-of-sale terminals, automotive instrument clusters, avionics flight-control legacy systems, telecom switching equipment and embedded control boards where 68000 binary code reuse is mandated. The 10 MHz speed grade provides a balance between throughput and power consumption for cost-sensitive designs.
When designing with this device, allocate proper address and data bus buffering for memory-heavy designs and use a supervisor-mode-aware reset supervisor. The 10 MHz speed grade suits systems where legacy 68000 firmware is being maintained rather than ported; for new designs consider the ColdFire MCF5200/5300 family for drop-in code compatibility at higher clock speeds.
جایگزین‌های drop-in برای MC68EC000CAA10 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
MC68EC000CAA8
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
MC68EC000CAA12
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
MC68EC000CAA16
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
TMP68EC000AF-10
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TMP68EC000AF-12
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
HD68EC000CP-10
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MC68EC000CAA10 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | M680x0 (EC000) |
| Number of Cores | 1 |
| عرض گذرگاه داده | 16-bit (external); 32-bit internal |
| Address Bus Width | 24-bit |
| Clock Frequency (Max) | 10 MHz |
| General-Purpose Registers | 8 data + 8 address (32-bit) |
| Instruction Set | MC68000 compatible |
| بسته‌بندی | 64-QFP (14x14 mm) |
| نوع نصب | Surface Mount |
پیکربندی پین MC68EC000CAA10
| پین 1 | VCC — +5V supply |
| پین 2 | A1 — Address bus bit 1 |
| پین 3 | A2 — Address bus bit 2 |
| پین 4 | A3 — Address bus bit 3 |
| پین 5 | A4 — Address bus bit 4 |
| پین 6 | A5 — Address bus bit 5 |
| پین 7 | A6 — Address bus bit 6 |
| پین 8 | A7 — Address bus bit 7 |
| پین 9 | A8 — Address bus bit 8 |
| پین 10 | A9 — Address bus bit 9 |
| پین 11 | A10 — Address bus bit 10 |
| پین 12 | A11 — Address bus bit 11 |
| پین 13 | A12 — Address bus bit 12 |
| پین 14 | A13 — Address bus bit 13 |
| پین 15 | A14 — Address bus bit 14 |
| پین 16 | A15 — Address bus bit 15 |
| پین 17 | GND — Ground |
| پین 18 | D15 — Data bus bit 15 |
| پین 19 | D14 — Data bus bit 14 |
| پین 20 | D13 — Data bus bit 13 |
| پین 21 | D12 — Data bus bit 12 |
| پین 22 | D11 — Data bus bit 11 |
| پین 23 | D10 — Data bus bit 10 |
| پین 24 | D9 — Data bus bit 9 |
| پین 25 | D8 — Data bus bit 8 |
| پین 26 | D7 — Data bus bit 7 |
| پین 27 | D6 — Data bus bit 6 |
| پین 28 | D5 — Data bus bit 5 |
| پین 29 | D4 — Data bus bit 4 |
| پین 30 | D3 — Data bus bit 3 |
| پین 31 | D2 — Data bus bit 2 |
| پین 32 | D1 — Data bus bit 1 |
| پین 33 | D0 — Data bus bit 0 |
| پین 34 | GND — Ground |
| پین 35 | AS — Address Strobe |
| پین 36 | LDS — Lower Data Strobe |
| پین 37 | UDS — Upper Data Strobe |
| پین 38 | R/W — Read/Write |
| پین 39 | FC0 — Function Code bit 0 |
| پین 40 | FC1 — Function Code bit 1 |
| پین 41 | FC2 — Function Code bit 2 |
| پین 42 | VCC — +5V supply |
| پین 43 | IPL0 — Interrupt Priority Level 0 |
| پین 44 | IPL1 — Interrupt Priority Level 1 |
| پین 45 | IPL2 — Interrupt Priority Level 2 |
| پین 46 | DTACK — Data Transfer Acknowledge |
| پین 47 | BERR — Bus Error |
| پین 48 | VPA — Valid Peripheral Address |
| پین 49 | E — Enable clock output |
| پین 50 | VMA — Valid Memory Address |
| پین 51 | RESET — Reset |
| پین 52 | HALT — Halt |
| پین 53 | BR — Bus Request |
| پین 54 | BG — Bus Grant |
| پین 55 | BGACK — Bus Grant Acknowledge |
| پین 56 | CLK — Clock input |
| پین 57 | VCC — +5V supply |
| پین 58 | A23 — Address bus bit 23 |
| پین 59 | A22 — Address bus bit 22 |
| پین 60 | A21 — Address bus bit 21 |
| پین 61 | A20 — Address bus bit 20 |
| پین 62 | A19 — Address bus bit 19 |
| پین 63 | A18 — Address bus bit 18 |
| پین 64 | A17 — Address bus bit 17 |
کاربردهای معمول
MC68EC000CAA10 مناسب است برای 6 کاربردs: Industrial Control Systems, Point-of-Sale Terminals, Automotive Instrument Clusters, Avionics Flight Control Legacy Systems, Telecom Switching Equipment, Embedded Control Boards (VME/CPCI).
Industrial Control Systems
The MC68EC000CAA10's 32-bit M68K architecture and 10 MHz throughput make it well-suited for industrial PLCs, motor controllers and factory automation boards running legacy 68000 firmware. Its 24-bit address bus supports up to 16 MB of external memory, enough for complex control programs and data logging. The mature instruction set and broad availability through authorized distributors support long-life industrial deployments. Unlike modern ARM Cortex-M controllers, the EC000 tolerates harsh industrial EMI environments because of its robust bus architecture.
پیشنهادی
Point-of-Sale Terminals
POS terminals often run legacy 68000 firmware for receipt printers, cash drawers and card readers; the MC68EC000CAA10 provides the right balance of throughput and cost for these applications. Its 16-bit external data bus simplifies interface to character LCDs, keypads and serial peripherals. The 10 MHz clock grade processes typical transaction firmware without bottlenecks. Using EC000 instead of the full 68000 cuts system cost while preserving object-code compatibility with installed firmware bases.
پیشنهادی
Automotive Instrument Clusters
Legacy automotive instrument clusters use M68K microprocessors for gauge drives, CAN gateways and body controllers; the MC68EC000CAA10 fits 24V vehicle electrical systems with appropriate regulation. Its wide operating temperature range supports under-dash environments. The QFP-64 package enables compact PCB designs. Note that this part is not AEC-Q100 qualified - automotive designs requiring formal qualification should use automotive-graded equivalents or up-screen the standard part.
پیشنهادی
Avionics Flight Control Legacy Systems
Avionics flight control systems on aircraft designed in the 1980s and 1990s use 68000-series processors; the MC68EC000CAA10 maintains those certified systems without firmware porting. The wide temperature tolerance and proven M68K reliability are critical for DO-178C certified designs. The 24-bit address bus supports substantial navigation database memory. Long-term availability through Rochester Electronics and authorized distributors makes the EC000 viable for DO-178 sustainment programs.
پیشنهادی
Telecom Switching Equipment
Telecom switching systems deployed in the 1990s and early 2000s use MC68EC000 for call control and switching fabric management; the MC68EC000CAA10 supports these legacy platforms through sustainment programs. Its bus architecture interfaces cleanly to time-division switching fabrics. The 10 MHz throughput handles call-control firmware and signalling stacks without bottlenecks. Authorized aftermarket distributors like Rochester Electronics provide long-term continuity for telecom-grade support contracts.
پیشنهادی
Embedded Control Boards (VME/CPCI)
VMEbus and CompactPCI single-board computers historically used MC68EC000 processors for I/O controllers, peripheral boards and processor mezzanines; the MC68EC000CAA10 enables form-fit-function replacements for end-of-life boards. The 16-bit data bus aligns with legacy VME mezzanine standards. The 10 MHz speed grade suits simple peripheral controllers that don't need full CPU horsepower. Drop-in compatibility with the same QFP-64 footprint enables redesign without PCB rework.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای MC68EC000CAA10 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | MC68EC000CAA8 | MC68EC000CAA12 | TMP68EC000AF-10 | HD68EC000CP-10 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Toshiba | Renesas Electronics |
| Package | 64-QFP (14x14) | 64-QFP (14x14) - same | 64-QFP (14x14) - same | 64-QFP (14x14) - same | 64-QFP (14x14) - same |
| Clock Frequency | 10 MHz | 8 MHz | 12.5 MHz | 10 MHz | 10 MHz |
| Architecture | EC000 (M68K) | EC000 (M68K) - same | EC000 (M68K) - same | EC000 (M68K) - same | EC000 (M68K) - same |
| External Data Bus | 16-bit | 16-bit | 16-bit | 16-bit | 16-bit |
| Address Bus | 24-bit | 24-bit | 24-bit | 24-bit | 24-bit |
| Instruction Set | MC68000 compatible | MC68000 compatible | MC68000 compatible | MC68000 compatible | MC68000 compatible |
تفاوت‌های کلیدی
- Exact drop-in pin compatibility across the EC000 family (در مقابلMC68EC000CAA8 / MC68EC000CAA12)
- Multi-vendor second-source availability (در مقابلTMP68EC000AF-10 (Toshiba) / HD68EC000CP-10 (Renesas))
- Object-code compatible with the full MC68000 instruction set (در مقابلColdFire MCF5206)
یادداشت‌های طراحی
The MC68EC000CAA10 requires a clean +5V supply (VCC pins at positions 1, 42, 57); bulk decoupling of 10uF tantalum plus 0.1uF ceramic should be placed within 1 inch of each VCC pin. Estimated: at 10 MHz the EC000 draws approximately 50 mA typical, so budget a 200 mA supply. Ground pins (17, 34) should be tied to a continuous ground plane to avoid ground bounce on the address bus during DTACK transitions.
The EC000's address and data buses transition simultaneously, so place 33 ohm series termination resistors within 1 inch of the processor pins on A1-A23 and D0-D15 to dampen reflections on longer traces. Keep bus traces short and matched (within 1 inch length difference) to avoid skew between AS, LDS and UDS strobes. For memory-heavy designs, add a bus buffer (e.g. 74F245) to isolate the EC000 from heavy capacitive loads.
Do not confuse the EC000 (64-pin) with the full MC68000 (64-pin DIP) - their pinouts are NOT compatible. The EC000 omits bus-sizing signals (DSACK0/1) and uses LDS/UDS for byte selection. Ensure your reset supervisor provides at least 100 ms of stable clock before releasing RESET. The DTACK pin must be pulled up to VCC through 4.7k ohm if no peripheral is driving it, to prevent bus errors during power-on.
Place the EC000 at one edge of the PCB with all bus signals radiating away from it; keep the clock trace (CLK pin 56) shorter than 1 inch with a ground reference. Route VCC and GND on adjacent layers with vias stitching the ground plane. The 64-QFP has a 0.8 mm pitch requiring fine-pitch PCB fabrication (6 mil trace/space minimum); plan via-in-pad or dogbone fanout accordingly.
اطلاعات انطباق
RoHS, REACH and halogen-free status are not explicitly stated in the verified distributor data as of 2026-10-17. Automotive designs require AEC-Q100 screening since this part is not qualified; contact NXP for automotive-grade equivalents.