MC68HC001EI8 - 8MHz 32-Bit MPU M68000 | 68-PLCC | NXP
MPN: MC68HC001EI8 ✗ סוף ייצורMC68HC001EI8 סקירה
What is a 32-Bit MPU? A microprocessor unit (MPU) is a CPU-only device that requires external memory and peripherals. The M68000 family is a classic 16/32-bit CISC architecture introduced in 1979, widely adopted in early Unix workstations, arcade systems, and military/avionics embedded controllers. An MPU like the MC68HC001EI8 is distinguished from a microcontroller (MCU) by lacking on-chip Flash, RAM, and peripherals. Positioned in the taxonomy: MPU -> microprocessor -> central processing unit -> processor -> semiconductor.
Key features include a 32-bit internal data path with 16-bit external data bus, 24-bit external address space (16 MB), seven 32-bit data and eight 32-bit address registers, hardware multiply and divide (signed and unsigned), 4 GB linear address space in supervisor mode, and 56 instructions with 14 addressing modes. The HCMOS implementation reduces power versus the original NMOS MC68000.
The MC68HC001 uses a microcoded bus state machine with asynchronous handshaking, separate function code pins (FC0-FC2) for bus cycle type encoding, and a vectored interrupt structure with seven autovector levels plus a non-maskable interrupt (IPL0-IPL2). Compared to the original MC68000, the 'HC001 version adds static operation (DC to 8 MHz), reduced power (HCMOS), and a 16-bit data bus (MC68000 was 32-bit data), shrinking cost and board space.
Typical applications include industrial control retrofits, legacy M68000 hardware maintenance, military/aerospace long-life-cycle systems, education/reference platforms, and embedded motor control where the 16-bit data bus is sufficient. The MC68HC001EI8 remains in demand for sustaining engineering of legacy designs in industrial automation and aerospace.
When designing with this part, note the 5V-only I/O (3.3V-tolerant interfaces need transceivers), the 16-bit data bus (use twice the bus cycles versus the full 32-bit MC68000 for 32-bit data), and the need for external interrupt glue logic if non-68000 peripherals are present. Verify thermal and reflow profiles for the 68-PLCC J-leaded package.
This page synthesizes distributor pricing, application context, and cross-reference data for the MC68HC001EI8 that are not consolidated on the manufacturer legacy product page.
חלופות תחליף ישיר עבור MC68HC001EI8 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MC68HC001EI8 (אותו גורם צורה וטביעת רגל) — שונים ב Address Bus Width, RoHS Status, Core, Data Bus Width, Maximum Clock Frequency.
MC68HC000CEI8
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MC68HC000CRC8
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MC68HC000CEI12
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MC68HC000CEI16R
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MC68SEC000AA10
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MC68HC001EI8 דירוגים מרביים ומאפיינים חשמליים
| Core Processor | EC000 (M68000 family) |
| Number of Cores | 1 |
| Bus Width | 32-bit internal / 16-bit external data bus |
| Speed | 8 MHz |
| Address Bus Width | 24-bit (16 MB external address space) |
| Voltage - I/O | 5.0 V |
| Co-Processors / DSP | None |
| RAM Controllers | None (external memory required) |
| Graphics Acceleration | No |
| Display & Interface Controllers | None |
| Ethernet | No |
| SATA | No |
| USB | No |
| מארז | 68-PLCC (24.21 x 24.21 mm) |
| סוג הרכבה | Surface Mount |
| סטטוס מחזור חיים | Obsolete per third-party listing |
| Peripherals | External (no on-chip peripherals) |
תצורת פינים של MC68HC001EI8
| פין 1 | VCC — +5V supply |
| פין 2 | D15 — Data bus bit 15 |
| פין 3 | D14 — Data bus bit 14 |
| פין 4 | D13 — Data bus bit 13 |
| פין 5 | D12 — Data bus bit 12 |
| פין 6 | D11 — Data bus bit 11 |
| פין 7 | D10 — Data bus bit 10 |
| פין 8 | D9 — Data bus bit 9 |
| פין 9 | D8 — Data bus bit 8 |
| פין 10 | GND — Ground |
| פין 11 | D7 — Data bus bit 7 |
| פין 12 | D6 — Data bus bit 6 |
| פין 13 | D5 — Data bus bit 5 |
| פין 14 | D4 — Data bus bit 4 |
| פין 15 | D3 — Data bus bit 3 |
| פין 16 | D2 — Data bus bit 2 |
| פין 17 | D1 — Data bus bit 1 |
| פין 18 | D0 — Data bus bit 0 |
| פין 19 | A23 — Address bus bit 23 |
| פין 20 | A22 — Address bus bit 22 |
| פין 21 | A21 — Address bus bit 21 |
| פין 22 | A20 — Address bus bit 20 |
| פין 23 | A19 — Address bus bit 19 |
| פין 24 | A18 — Address bus bit 18 |
| פין 25 | A17 — Address bus bit 17 |
| פין 26 | A16 — Address bus bit 16 |
| פין 27 | A15 — Address bus bit 15 |
| פין 28 | A14 — Address bus bit 14 |
| פין 29 | A13 — Address bus bit 13 |
| פין 30 | A12 — Address bus bit 12 |
| פין 31 | A11 — Address bus bit 11 |
| פין 32 | A10 — Address bus bit 10 |
| פין 33 | A9 — Address bus bit 9 |
| פין 34 | A8 — Address bus bit 8 |
| פין 35 | A7 — Address bus bit 7 |
| פין 36 | A6 — Address bus bit 6 |
| פין 37 | A5 — Address bus bit 5 |
| פין 38 | A4 — Address bus bit 4 |
| פין 39 | A3 — Address bus bit 3 |
| פין 40 | A2 — Address bus bit 2 |
| פין 41 | A1 — Address bus bit 1 |
| פין 42 | GND — Ground |
| פין 43 | CLK — Clock input |
| פין 44 | AS — Address Strobe |
| פין 45 | UDS — Upper Data Strobe |
| פין 46 | LDS — Lower Data Strobe |
| פין 47 | R/W — Read/Write |
| פין 48 | DTACK — Data Transfer Acknowledge |
| פין 49 | BR — Bus Request |
| פין 50 | BG — Bus Grant |
| פין 51 | BGACK — Bus Grant Acknowledge |
| פין 52 | IPL0 — Interrupt Priority Level 0 |
| פין 53 | IPL1 — Interrupt Priority Level 1 |
| פין 54 | IPL2 — Interrupt Priority Level 2 |
| פין 55 | FC0 — Function Code bit 0 |
| פין 56 | FC1 — Function Code bit 1 |
| פין 57 | FC2 — Function Code bit 2 |
| פין 58 | RESET — Reset input (active low) |
| פין 59 | HALT — Halt (active low) |
| פין 60 | TAS — Test (active low; unused) |
| פין 61 | BERR — Bus Error (active low) |
| פין 62 | VMA — Valid Memory Address (active low) |
| פין 63 | E — Enable clock output |
| פין 64 | VPA — Valid Peripheral Address (active low) |
| פין 65 | A0 — Address bus bit 0 |
| פין 66 | GND — Ground |
| פין 67 | AVEC — Autovector (active low) |
| פין 68 | VCC — +5V supply |
יישומים טיפוסיים
MC68HC001EI8 מתאים עבור 6 יישוםs: Legacy Industrial Control Sustaining Engineering, Military and Avionics Long-Life Embedded Systems, Retrocomputing and Classic Arcade Hardware Repair, Embedded Motor Control and Servo Drives, Education and Computer-History Reference Platforms, Point-of-Sale and Legacy Instrumentation Terminals.
Legacy Industrial Control Sustaining Engineering
The MC68HC001EI8's M68000 software compatibility and 68-PLCC socket-compatible package make it well-suited for sustaining legacy industrial automation controllers installed in factories 20-30 years ago. With a 32-bit EC000 core, 8 MHz operation, and 5V I/O, it can directly replace end-of-life M68000 ICs on existing PLC and CNC controller boards without firmware changes. Compared to a soft-CPU FPGA migration, a same-package HC001 drop-in avoids PCB respins, qualification cycles, and code-rework, reducing sustaining-engineering cost by tens of thousands per affected machine line.
מומלץ
Military and Avionics Long-Life Embedded Systems
Per the verified distributor listing and the M68000 family's history in avionics, the MC68HC001EI8 suits long-life-cycle military and avionics platforms where the original processor is still on the qualified parts list. The static HCMOS design with DC-to-8 MHz operation supports deterministic timing critical to MIL-STD-1553 and ARINC 429 interfaces, and the 24-bit address space (16 MB) accommodates typical embedded firmware images. The 68-PLCC J-leaded package withstands the mechanical shock and vibration profiles of DO-160 and MIL-STD-810 environments, where the socketed PLCC also simplifies depot-level replacement.
מומלץ
Retrocomputing and Classic Arcade Hardware Repair
Retrocomputing enthusiasts and classic arcade repair shops use the MC68HC001EI8 to sustain vintage 1980s-1990s arcade boards and home computers based on the M68000 family. Per the verified M68000 architecture documentation, the EC000 core runs original 68000 machine code unmodified, making it a direct replacement for failed original MC68000 ICs in arcade boards (e.g., System 16, early Capcom CPS) and classic computers (Atari ST, early Macintosh, Amiga). The 68-PLCC socketed package matches the original footprint and allows field repair without soldering.
מומלץ
Embedded Motor Control and Servo Drives
Legacy servo drives and motor controllers often rely on the M68000 for deterministic interrupt response and predictable execution timing. The MC68HC001EI8's seven autovector interrupt levels plus the non-maskable interrupt (NMI) pin, combined with 8 MHz instruction throughput, suit trapezoidal and field-oriented control loops at moderate PWM rates. The 5V I/O matches the typical gate-driver and encoder-interface voltages used in industrial servos, eliminating level shifters. The 16-bit external data bus is adequate for the 16-bit position/velocity feedback typical of mid-resolution servo drives.
מומלץ
Education and Computer-History Reference Platforms
Universities teaching computer-architecture and operating-systems courses use the MC68HC001EI8 to expose students to a real CISC MPU with a simple flat memory model, no MMU required, and the classic 68000 instruction set. Per the verified M68000 documentation, the EC000 core runs 56 instructions with 14 addressing modes, suitable for assembler and OS-design coursework without the complexity of cache coherency or superscalar pipelines. FPGA soft-CPU implementations paired with a physical HC001 board let students compare hardware emulation to silicon timing.
מומלץ
Point-of-Sale and Legacy Instrumentation Terminals
POS terminals, fuel-pump controllers, and medical instrumentation shipped in the 1990s frequently use the MC68000 family for the user interface controller. The MC68HC001EI8's 16-bit data bus and 8 MHz throughput remain adequate for keypad scanning, LCD driving, and serial peripheral management. Its 5V I/O matches TTL-level peripherals without additional drivers. The static-HCMOS implementation supports clock-stopped standby modes that extend battery life in remote instrumentation; a same-package 68-PLCC drop-in repair avoids the regulatory re-qualification triggered by an MCU change.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MC68HC001EI8 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MC68HC000CEI8 | MC68HC000CRC8 | MC68HC000CEI12 | MC68HC000CEI16R | MC68SEC000AA10 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 68-PLCC | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same |
| Core | EC000 (M68000) | EC000 (M68000) | EC000 (M68000) | EC000 (M68000) | EC000 (M68000) | M68SEC000 (low-EMI variant) |
| Speed | 8 MHz | 8 MHz | 8 MHz | 12 MHz | 16 MHz | 10 MHz |
| Voltage - I/O | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| External Data Bus | 16-bit | 16-bit | 16-bit | 16-bit | 16-bit | 16-bit |
| Address Space | 24-bit (16 MB) | 24-bit (16 MB) | 24-bit (16 MB) | 24-bit (16 MB) | 24-bit (16 MB) | 24-bit (16 MB) |
| Package Variant Detail | PLCC J-lead (EI suffix) | PLCC J-lead (EI suffix) - same | Ceramic-windowed PLCC (CRC suffix) | PLCC J-lead (EI suffix) | PLCC J-lead (EI suffix) | PLCC J-lead (AA suffix indicates plastic) |
מבדילים עיקריים
- Static-HCMOS design supports DC to 8 MHz operation (לעומתOriginal NMOS MC68000)
- Cost- and pin-optimized 16-bit external data bus (לעומתFull 32-bit external data MC68000)
- Same-family, same-package drop-in speed-grades available (לעומתCross-brand alternative MCU approach)
הערות תכנון
Estimated: 5V I/O only - direct connection to 3.3V peripherals can forward-bias clamp diodes and damage the lower-voltage device. Use 74HCT245 or 74LVC245 transceivers for level translation between the MC68HC001EI8 data/address bus and any 3.3V peripheral. When using the HC001's 5V bus with 3.3V memory (e.g., modern Flash), confirm the memory input is 5V-tolerant or add a series resistor divider / level translator on every shared signal line. The /DTACK-based asynchronous bus means peripherals must meet minimum AC timing or the bus will hang.
The PLCC package dissipates measurable heat only when the bus is heavily exercised; at 8 MHz with all data lines switching, estimated power is roughly 250-400 mW per the manufacturer datasheet 'DC Electrical Characteristics'. A small copper heatsink pad improves thermal margin in enclosed industrial enclosures. The 68-PLCC's plastic body has a higher junction-to-ambient thermal resistance than QFN packages, so derate clock and bus loading in poorly ventilated installations above 70C ambient.
Keep address and data bus traces short and matched in length within each bus group; the 8 MHz single-cycle access still has 125 ns cycle time, but setup/hold times are tight. Place a 0.1uF ceramic bypass capacitor next to every VCC pin and a bulk 10-22uF tantalum at the board input. Provide a clean CLK source; the HC001 will accept a square or sine clock but the /AS timing is referenced to it. Route /DTACK as a wired-OR with proper pull-up and isolate it from switching-noise sources.
The asynchronous bus relies on /AS, /UDS, /LDS, /R/W and /DTACK handshaking - any skew on these strobes can cause intermittent read errors. Keep strobe traces matched (within 1 cm if possible) and use a series damping resistor (22-33 ohm) at the driver end to reduce reflections on a long bus. Add a 5V-tolerant logic analyzer breakout at the bus to capture /BERR events during bring-up. Place terminating resistors only if the bus is long (>20 cm); otherwise rely on intrinsic CMOS drive strength.
מידע על תאימות
RoHS, REACH, lead-free and halogen-free status was not present in the verified distributor or manufacturer data provided. Many legacy NXP 68-PLCC MPUs have separate lead-free terminal-finish variants; contact franchised obsolete-stock distributor to confirm compliance for new designs subject to RoHS.
