MC68EC000CAA10 - 32-Bit 10MHz EC000 MPU | NXP 64-QFP
MPN: MC68EC000CAA10 ✓ Hoạt độngMC68EC000CAA10 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MC68EC000CAA10 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
MC68EC000CAA8
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC68EC000CAA12
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC68EC000CAA16
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
TMP68EC000AF-10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TMP68EC000AF-12
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
HD68EC000CP-10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68EC000CAA10 Tỷ lệ tối đa & tính chất điện
| Core Architecture | M680x0 (EC000) |
| Number of Cores | 1 |
| Bề rộng đường dữ liệu | 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 |
| Hộp | 64-QFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân MC68EC000CAA10
| Chân 1 | VCC — +5V supply |
| Chân 2 | A1 — Address bus bit 1 |
| Chân 3 | A2 — Address bus bit 2 |
| Chân 4 | A3 — Address bus bit 3 |
| Chân 5 | A4 — Address bus bit 4 |
| Chân 6 | A5 — Address bus bit 5 |
| Chân 7 | A6 — Address bus bit 6 |
| Chân 8 | A7 — Address bus bit 7 |
| Chân 9 | A8 — Address bus bit 8 |
| Chân 10 | A9 — Address bus bit 9 |
| Chân 11 | A10 — Address bus bit 10 |
| Chân 12 | A11 — Address bus bit 11 |
| Chân 13 | A12 — Address bus bit 12 |
| Chân 14 | A13 — Address bus bit 13 |
| Chân 15 | A14 — Address bus bit 14 |
| Chân 16 | A15 — Address bus bit 15 |
| Chân 17 | GND — Ground |
| Chân 18 | D15 — Data bus bit 15 |
| Chân 19 | D14 — Data bus bit 14 |
| Chân 20 | D13 — Data bus bit 13 |
| Chân 21 | D12 — Data bus bit 12 |
| Chân 22 | D11 — Data bus bit 11 |
| Chân 23 | D10 — Data bus bit 10 |
| Chân 24 | D9 — Data bus bit 9 |
| Chân 25 | D8 — Data bus bit 8 |
| Chân 26 | D7 — Data bus bit 7 |
| Chân 27 | D6 — Data bus bit 6 |
| Chân 28 | D5 — Data bus bit 5 |
| Chân 29 | D4 — Data bus bit 4 |
| Chân 30 | D3 — Data bus bit 3 |
| Chân 31 | D2 — Data bus bit 2 |
| Chân 32 | D1 — Data bus bit 1 |
| Chân 33 | D0 — Data bus bit 0 |
| Chân 34 | GND — Ground |
| Chân 35 | AS — Address Strobe |
| Chân 36 | LDS — Lower Data Strobe |
| Chân 37 | UDS — Upper Data Strobe |
| Chân 38 | R/W — Read/Write |
| Chân 39 | FC0 — Function Code bit 0 |
| Chân 40 | FC1 — Function Code bit 1 |
| Chân 41 | FC2 — Function Code bit 2 |
| Chân 42 | VCC — +5V supply |
| Chân 43 | IPL0 — Interrupt Priority Level 0 |
| Chân 44 | IPL1 — Interrupt Priority Level 1 |
| Chân 45 | IPL2 — Interrupt Priority Level 2 |
| Chân 46 | DTACK — Data Transfer Acknowledge |
| Chân 47 | BERR — Bus Error |
| Chân 48 | VPA — Valid Peripheral Address |
| Chân 49 | E — Enable clock output |
| Chân 50 | VMA — Valid Memory Address |
| Chân 51 | RESET — Reset |
| Chân 52 | HALT — Halt |
| Chân 53 | BR — Bus Request |
| Chân 54 | BG — Bus Grant |
| Chân 55 | BGACK — Bus Grant Acknowledge |
| Chân 56 | CLK — Clock input |
| Chân 57 | VCC — +5V supply |
| Chân 58 | A23 — Address bus bit 23 |
| Chân 59 | A22 — Address bus bit 22 |
| Chân 60 | A21 — Address bus bit 21 |
| Chân 61 | A20 — Address bus bit 20 |
| Chân 62 | A19 — Address bus bit 19 |
| Chân 63 | A18 — Address bus bit 18 |
| Chân 64 | A17 — Address bus bit 17 |
Ứng dụng tiêu biểu
MC68EC000CAA10 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68EC000CAA10 — 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 | 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 |
Bảo phân biệt quan trọng
- Exact drop-in pin compatibility across the EC000 family (vsMC68EC000CAA8 / MC68EC000CAA12)
- Multi-vendor second-source availability (vsTMP68EC000AF-10 (Toshiba) / HD68EC000CP-10 (Renesas))
- Object-code compatible with the full MC68000 instruction set (vsColdFire MCF5206)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.