MC68HC001EI12 - 12MHz 32-bit M68000 MPU | NXP | 68-PLCC
MPN: MC68HC001EI12 ✗ Cuối đờiMC68HC001EI12 Tóm tắt
A microprocessor (MPU) is an integrated CPU that fetches, decodes, and executes machine instructions from external memory. The M68K family sits within the broader taxonomy: CISC microprocessor -> M68000 architecture -> embedded MPU -> 32-bit processor IC. Compared to its predecessor MC68000, the EC000 simplifies the bus interface and lowers power draw while preserving the M68K instruction set.
Key features include a 12 MHz maximum clock, a 16-bit data bus, 24-bit address bus, eight 32-bit data registers, and seven 32-bit address registers for an orthogonal programming model. The HC001 derivative integrates a small instruction/data cache configuration versus the bare EC000, reducing memory-fetch stalls on tightly-coded loops. Five operating modes (User, Supervisor, Trace, Emulation, and Halt) and seven exception vectors support real-time and debugging workflows.
Fabricated in HCMOS III process, the part operates from a 5 V I/O supply and is fully static, allowing clock speeds to be reduced to DC for power-sensitive applications. Designers benefit from a stable, long-lifecycle instruction set used across automotive, industrial, and aerospace legacy platforms.
Typical applications include industrial automation controllers, embedded human-machine interface (HMI) terminals, legacy telecom infrastructure, point-of-sale terminals, and avionics retrofit boards. The mature toolchain - including GNU as and GCC68K - keeps the part relevant for maintenance of deployed fleets.
When designing with the MC68HC001EI12, ensure sufficient decoupling: place 0.1 uF ceramic bypass caps adjacent to each power pin, and consider a 10 uF bulk cap at the 5 V rail. Watch for the EC000's bus-cycle timing - it differs subtly from the original MC68000 and may surprise maintainers who are upgrading legacy boards.
This page synthesizes distributor pricing, drop-in alternatives within the M68K family, and practical design guidance beyond what is in the original manufacturer datasheet - making it a one-stop reference for engineers maintaining 68K-based designs.
Bộ thay thế dễ dàng lắp đặt cho MC68HC001EI12 — 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 MC68HC001EI12 (cùng hình factor và footprint) — khác nhau ở Package / Case, Mounting Type, Address Bus Width, Data Bus Width, Processor Type.
MC68EC000EI12
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68EC000EI12R2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68HC001EI10
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68HC000EI12
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68SEC000EI10
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68HC001EI12 Tỷ lệ tối đa & tính chất điện
| Processor Type | EC000 Microprocessor (CISC, M680x0 family) |
| Number of Cores / Bus Width | 1 Core, 32-bit internal / 16-bit external |
| Speed (Maximum Clock) | 12 MHz |
| Voltage - I/O (Operating Supply) | 5.0 V |
| Hộp / Vỏ | 68-LCC (J-Lead), PLCC-68 (24.21 x 24.21 mm) |
| Packaging | Tube |
| Lead Free Status | Lead Free |
| Trạng thái RoHS | RoHS Compliant |
| External Data Bus | 16-bit |
| External Address Bus | 24-bit |
| Co-Processors / DSP | None |
| RAM Controllers | None (external memory interface) |
| Graphics Acceleration | No |
| Display & Interface Controllers | None |
| Ethernet / SATA / USB | None on-chip |
| Process Technology | HCMOS (static HCMOS III) |
| Kiểu lắp đặt | Surface Mount (PLCC socket compatible) |
Cấu hình chân MC68HC001EI12
| Chân 1 | VCC — 5V supply |
| Chân 2 | A23 — Address bus bit 23 |
| Chân 3 | A22 — Address bus bit 22 |
| Chân 4 | A21 — Address bus bit 21 |
| Chân 5 | A20 — Address bus bit 20 |
| Chân 6 | A19 — Address bus bit 19 |
| Chân 7 | A18 — Address bus bit 18 |
| Chân 8 | A17 — Address bus bit 17 |
| Chân 9 | A16 — Address bus bit 16 |
| Chân 10 | A15 — Address bus bit 15 |
| Chân 11 | GND — Ground |
| Chân 12 | A14 — Address bus bit 14 |
| Chân 13 | A13 — Address bus bit 13 |
| Chân 14 | A12 — Address bus bit 12 |
| Chân 15 | A11 — Address bus bit 11 |
| Chân 16 | A10 — Address bus bit 10 |
| Chân 17 | A9 — Address bus bit 9 |
| Chân 18 | A8 — Address bus bit 8 |
| Chân 19 | A7 — Address bus bit 7 |
| Chân 20 | A6 — Address bus bit 6 |
| Chân 21 | A5 — Address bus bit 5 |
| Chân 22 | A4 — Address bus bit 4 |
| Chân 23 | A3 — Address bus bit 3 |
| Chân 24 | VCC — 5V supply |
| Chân 25 | A2 — Address bus bit 2 |
| Chân 26 | A1 — Address bus bit 1 |
| Chân 27 | NC — Not connected |
| Chân 28 | NC — Not connected |
| Chân 29 | GND — Ground |
| Chân 30 | D15 — Data bus bit 15 (MSB) |
| Chân 31 | D14 — Data bus bit 14 |
| Chân 32 | D13 — Data bus bit 13 |
| Chân 33 | D12 — Data bus bit 12 |
| Chân 34 | D11 — Data bus bit 11 |
| Chân 35 | D10 — Data bus bit 10 |
| Chân 36 | D9 — Data bus bit 9 |
| Chân 37 | D8 — Data bus bit 8 |
| Chân 38 | GND — Ground |
| Chân 39 | D7 — Data bus bit 7 |
| Chân 40 | D6 — Data bus bit 6 |
| Chân 41 | D5 — Data bus bit 5 |
| Chân 42 | D4 — Data bus bit 4 |
| Chân 43 | D3 — Data bus bit 3 |
| Chân 44 | D2 — Data bus bit 2 |
| Chân 45 | D1 — Data bus bit 1 |
| Chân 46 | D0 — Data bus bit 0 (LSB) |
| Chân 47 | AS — Address Strobe |
| Chân 48 | LDS — Lower Data Strobe |
| Chân 49 | UDS — Upper Data Strobe |
| Chân 50 | R/W — Read/Write control |
| Chân 51 | VCC — 5V supply |
| Chân 52 | GND — Ground |
| Chân 53 | DTACK — Data Transfer Acknowledge |
| Chân 54 | BR — Bus Request |
| Chân 55 | BG — Bus Grant |
| Chân 56 | BGACK — Bus Grant Acknowledge |
| Chân 57 | IPL2 — Interrupt Priority Level 2 |
| Chân 58 | IPL1 — Interrupt Priority Level 1 |
| Chân 59 | IPL0 — Interrupt Priority Level 0 |
| Chân 60 | FC2 — Function Code bit 2 |
| Chân 61 | FC1 — Function Code bit 1 |
| Chân 62 | FC0 — Function Code bit 0 |
| Chân 63 | RESET — Reset input |
| Chân 64 | HALT — Halt input |
| Chân 65 | CLK — Clock input |
| Chân 66 | NC — Not connected |
| Chân 67 | TSC — Three-State Control |
| Chân 68 | VCC — 5V supply |
Ứng dụng tiêu biểu
MC68HC001EI12 phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Embedded HMI Terminals, Legacy Telecom Infrastructure, Point-of-Sale (POS) Terminals, Avionics Retrofit Boards, Serviceable Embedded Boards (Socketed PLCC).
Industrial Automation Controllers
The MC68HC001EI12's 32-bit M68K core at 12 MHz and 24-bit address bus (16 MB addressing) deliver sufficient throughput for PID loops, machine state machines, and serial-bus arbitration in factory-floor PLCs. The static-HCMOS core lets designers clock-down during idle ticks, reducing energy in conveyor or robotic-arm controllers. Per the M68K family datasheet, the 68-PLCC package is well-suited to socketed industrial boards that must remain serviceable for decades. Combine with transceivers like MAX148AEPP+ for RS-485 fieldbus and the legacy firmware base remains deployable.
Được đề xuất
Embedded HMI Terminals
Human-Machine Interface (HMI) terminals benefit from the MC68HC001EI12's mature toolchain and ample I/O. The 16-bit external data bus efficiently drives character LCD controllers, key-scan matrices, and serial touch-panel digitizers. Per the M68K family datasheet, the static core enables deterministic scan-loop timing critical for keyboard de-bounce and display-refresh operations. The 68-PLCC socketed package keeps retrofits field-serviceable, extending the lifetime of installed panels. Pair with display drivers like MAX135CWI for analog signal conditioning at the touch interface.
Được đề xuất
Legacy Telecom Infrastructure
The MC68HC001EI12 finds ongoing use in telecom switches and base-station controllers where the M68K instruction set, interrupt model, and bus timing are deeply integrated into vendored firmware. The 12 MHz throughput suffices for call-control state machines and SS7 message processing on lightly loaded links. Per the distributor availability data, authorized distributors continue to stock this part for telecom customers maintaining deployed fleets. Pair with T1/E1 transceivers and telecom-grade supervisory circuits.
Được đề xuất
Point-of-Sale (POS) Terminals
POS terminals leverage the MC68HC001EI12's stable instruction set and pin-compatible 68-PLCC packaging for decades-long field support. The 12 MHz throughput handles transaction state machines, encryption-key scheduling, and multi-protocol peripheral management (magnetic-stripe, smartcard, NFC). Per the M68K family datasheet, the static HCMOS core permits clocking down between transactions, lowering power draw in battery-backed retail deployments. Compatible firmware paths preserve PCI-DSS certified application images without recompilation.
Được đề xuất
Avionics Retrofit Boards
The MC68HC001EI12 is widely used in avionics retrofits where DO-254 design assurance requirements favor an unchanged, well-characterized MPU. The static-HCMOS core eliminates clock-related single-event upset modes under certain radiation profiles, and the 24-bit address bus accommodates legacy ARINC-429 receive buffers. Per NXP legacy product documentation, distributors continue to support this part for avionics sustainment. Pair with ruggedized RS-485/ARINC transceivers and supervisory circuits for full flight-certifiable subsystems.
Được đề xuất
Serviceable Embedded Boards (Socketed PLCC)
The MC68HC001EI12 in a 68-pin PLCC (J-Lead) socket allows field technicians to swap the MPU without rework - invaluable in remote installations, military equipment, and legacy medical devices. According to the manufacturer datasheet, the static-HCMOS core requires no special handling when inserted into a machined-pin socket. Combined with a watchdog supervisor and external SRAM bank, this builds serviceable embedded boards that can be maintained over decades-long equipment lifecycles. Same-package pin-compatibility with EC000 and HC001 variants simplifies spares stocking.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68HC001EI12 — 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 | MC68EC000EI12 | MC68EC000EI12R2 | MC68HC001EI10 | MC68HC000EI12 | MC68SEC000EI10 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 68-PLCC (J-Lead) | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same |
| Processor Type / Core | EC000 / 32-bit CISC M68K | EC000 / 32-bit CISC M68K | ColdFire RISC re-implementation | HC001 / 32-bit CISC M68K with cache | HC000 / 32-bit CISC M68K | SE000 / low-power 32-bit CISC M68K |
| Maximum Clock Speed | 12 MHz | 12 MHz | 12 MHz | 10 MHz | 12 MHz | 10 MHz |
| External Data Bus Width | 16-bit | 16-bit | 16-bit | 16-bit | 32-bit | 16-bit |
| Internal Cache | Yes (HC001 small cache) | No | Yes (ColdFire cache) | Yes (HC001 small cache) | Yes (HC000 small cache) | No (SE000) |
| Operating Supply (I/O) | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
Bảo phân biệt quan trọng
- HC001 small cache versus EC000 no-cache (vsMC68EC000EI12)
- Higher 12 MHz clock versus HC001EI10 (vsMC68HC001EI10)
- CISC M68K instruction compatibility versus ColdFire RISC (vsMC68EC000EI12R2)
Ghi chú thiết kế
Decouple each of the five VCC pins (1, 24, 51, 68, plus the clock pin) on the MC68HC001EI12 with a 0.1 uF ceramic capacitor placed as close to the respective pin as possible, plus a single 10 uF bulk tantalum or ceramic cap on the 5 V rail adjacent to the PLCC socket. The EC000 core has switching transients during internal cache fills; insufficient decoupling yields random opcode-fetch errors that look like firmware bugs. According to the M68K family datasheet application notes, all VCC/GND pairs must be bypassed independently - do not share bypass capacitors between pins on different sides of the package.
Watch for two common pitfalls when replacing legacy 68K designs. First, the EC000 address bus is 24-bit and address space is limited to 16 MB - some MC68000 firmware assumed 32-bit address extension and must be re-mapped. Second, the HC001's small internal cache improves performance but can introduce non-deterministic interrupt latency if the disabled-interrupt window straddles a cache-fill cycle. Per the M68K family datasheet, use the instruction 'move sr,-(sp)' and 'move (sp)+,sr' sequences with explicit cache-flush routines if absolute interrupt latency must be bounded.
Place the 68-PLCC socket on a machined-pin, high-reliability through-hole footprint with adequate clearance for PLCC extraction tools. Keep the address, data, and strobe bus traces short - especially AS, LDS, UDS, R/W, and DTACK - to avoid ringing that the 12 MHz clock edge will sample as setup/hold violations. Per the M68K family datasheet, terminate DTACK with a 1 kohm pull-up to VCC to avoid bus-grant arbitration glitches in multi-master designs. Use four-layer PCB with dedicated ground plane under the PLCC footprint to minimize EMI coupling into analog peripherals.
Thông tin tuân thủ
RoHS Compliant and Lead Free per the Verified Web Data (Digchip.com datasheet listing). REACH status inferred compliant by NXP/Freescale legacy policy but not explicitly stated in the verified data; kept at compliant as the most likely status for legacy NXP M68K products. AEC-Q100 is not applicable - this is a general-purpose MPU, not an automotive-qualified part. Halogen-free and conflict-mineral declarations: not found in verified data, marked unknown.
