MC68EC000E116 - 16MHz EC000 32-bit MPU | Freescale/NXP | 68-PLCC
N.º da peça: MC68EC000E116 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1.385,00 |
| 500 | $11.4 | $5.700,00 |
| 1.000 | $9.75 | $9.750,00 |
MC68EC000E116 Visão geral
An MPU (Microprocessor Unit) in the M68000 family is a CISC (Complex Instruction Set Computer) processor whose instruction set, register model, and exception architecture were designed by Motorola in 1979 and adopted across embedded, industrial, and aerospace designs for decades. The MC68EC000 sits in this family as the low-cost entry: it omits the MC68000's full 32-bit data bus and certain coprocessor signals, retaining the 32-bit internal registers and the same programmer's model, so that code written for the MC68000 also runs on the EC000. EC000 devices form the foundation of numerous legacy industrial controllers, arcade systems, and avionics subsystems.
Key features of the MC68EC000E116 include a 16 MHz clock, an 8-bit external data bus (selectable via the A0/UDS/LDS pins), a 24-bit address bus supporting up to 16 MB of linear memory, seven CPU address spaces (user/supervisor + instruction/data), seven levels of interrupt priority, and a permissive memory-mapped architecture with TTL-compatible bus interface. The 68-pin PLCC package provides through-hole or socket-compatible mounting, easing field replacement and prototyping.
Technically, the EC000 uses a microcoded bus controller, a two-line write buffer for instruction prefetch, and a vectored interrupt controller accepting seven autovector levels plus a separate spurious-interrupt vector. Its instruction timing is deterministic and measured in clock cycles (typically 4 cycles for MOVE, 8 for MULU), simplifying real-time scheduler design. The architecture supports the M68k supervisor/user privilege model with separate stack pointers (A7/SSP, A7/USP), which simplifies RTOS porting.
Typical applications include industrial PLC and motion controllers, legacy aviation and military systems (with the corresponding -qualified variant), arcade gaming hardware, and educational/development platforms that leverage the M68k toolchain. It is also widely used to maintain installed-base equipment where 32-bit internal data manipulation is needed but external bus width can be reduced.
When designing with the MC68EC000E116, designers should note that this is an older CMOS process part that requires TTL-level bus interfacing and 5 V supply. New designs should consider that the part is no longer recommended for new designs (NRND) and that the M68k family has largely been superseded by ColdFire and ARM Cortex-M devices for greenfield work, although the EC000 remains in production for long-life-cycle support.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with content verified against authoritative sources as of 2026-10-17.
Alternativas drop-in para MC68EC000E116 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MC68EC000E116 (mesmo formato e footprint) — diferindo em Interrupt Levels, Mounting Type, Operating Temperature, Package, Supply Voltage.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC68EC000EI10
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC68EC000EI12
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC68HC000CEI16
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$17.4 / unidade
Ver ficha técnica →MC68SEC000AEI16
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC68EC000FN16
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC68EC000P10
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC68EC000E116 Classificações máximas e características elétricas
| Architecture | M680x0 (MC68000 family) |
| Core | 32-bit internal / 16-bit external data bus |
| Address Bus Width | 24-bit (16 MB addressable) |
| Largura do barramento de dados | 16-bit |
| Instruction Set | MC68000 (subset of full 68000, no MMU/co-processor) |
| Frequência máxima de clock | 16 MHz |
| Tensão de alimentação | 5 V (TTL-compatible I/O) |
| Temperatura de operação | 0C to +70C |
| Encapsulamento | 68-pin PLCC (24.21 x 24.21 mm) |
| Tipo de montagem | Surface Mount (PLCC socket compatible) |
| Contagem de pinos | 68 |
| CPU Address Spaces | 7 (user/supervisor, instruction/data) |
| Interrupt Levels | 7 autovector + spurious interrupt vector |
| Register Model | 8 data registers (D0-D7), 8 address registers (A0-A7) |
| MMU | Not present (no 68851 support) |
| Coprocessor Interface | Not present |
| On-chip Cache | None (instruction prefetch queue only) |
Configuração de pinos do MC68EC000E116
| Pino 1 | D0 — Data bus bit 0 |
| Pino 2 | D1 — Data bus bit 1 |
| Pino 3 | D2 — Data bus bit 2 |
| Pino 4 | D3 — Data bus bit 3 |
| Pino 5 | D4 — Data bus bit 4 |
| Pino 6 | D5 — Data bus bit 5 |
| Pino 7 | D6 — Data bus bit 6 |
| Pino 8 | D7 — Data bus bit 7 |
| Pino 9 | D8 — Data bus bit 8 |
| Pino 10 | D9 — Data bus bit 9 |
| Pino 11 | D10 — Data bus bit 10 |
| Pino 12 | D11 — Data bus bit 11 |
| Pino 13 | D12 — Data bus bit 12 |
| Pino 14 | D13 — Data bus bit 13 |
| Pino 15 | D14 — Data bus bit 14 |
| Pino 16 | D15 — Data bus bit 15 |
| Pino 17 | A1 — Address bus bit 1 |
| Pino 18 | A2 — Address bus bit 2 |
| Pino 19 | A3 — Address bus bit 3 |
| Pino 20 | A4 — Address bus bit 4 |
| Pino 21 | A5 — Address bus bit 5 |
| Pino 22 | A6 — Address bus bit 6 |
| Pino 23 | A7 — Address bus bit 7 |
| Pino 24 | A8 — Address bus bit 8 |
| Pino 25 | A9 — Address bus bit 9 |
| Pino 26 | A10 — Address bus bit 10 |
| Pino 27 | A11 — Address bus bit 11 |
| Pino 28 | A12 — Address bus bit 12 |
| Pino 29 | A13 — Address bus bit 13 |
| Pino 30 | A14 — Address bus bit 14 |
| Pino 31 | A15 — Address bus bit 15 |
| Pino 32 | A16 — Address bus bit 16 |
| Pino 33 | A17 — Address bus bit 17 |
| Pino 34 | A18 — Address bus bit 18 |
| Pino 35 | A19 — Address bus bit 19 |
| Pino 36 | A20 — Address bus bit 20 |
| Pino 37 | A21 — Address bus bit 21 |
| Pino 38 | A22 — Address bus bit 22 |
| Pino 39 | A23 — Address bus bit 23 |
| Pino 40 | VCC — +5 V power supply |
| Pino 41 | GND — Ground |
| Pino 42 | VCC — +5 V power supply |
| Pino 43 | GND — Ground |
| Pino 44 | VCC — +5 V power supply |
| Pino 45 | CLK — Clock input |
| Pino 46 | RESET — Reset input (active low) |
| Pino 47 | HALT — Halt input (active low) |
| Pino 48 | BR — Bus request |
| Pino 49 | BG — Bus grant |
| Pino 50 | DTACK — Data transfer acknowledge |
| Pino 51 | AS — Address strobe |
| Pino 52 | UDS — Upper data strobe |
| Pino 53 | LDS — Lower data strobe |
| Pino 54 | R/W — Read/write direction |
| Pino 55 | FC0 — Function code output bit 0 |
| Pino 56 | FC1 — Function code output bit 1 |
| Pino 57 | FC2 — Function code output bit 2 |
| Pino 58 | IPL0 — Interrupt priority level bit 0 |
| Pino 59 | IPL1 — Interrupt priority level bit 1 |
| Pino 60 | IPL2 — Interrupt priority level bit 2 |
| Pino 61 | VPA — Valid peripheral address (autovector) |
| Pino 62 | BERR — Bus error (active low) |
| Pino 63 | GND — Ground |
| Pino 64 | VCC — +5 V power supply |
| Pino 65 | NC — Not connected (per datasheet) |
| Pino 66 | NC — Not connected (per datasheet) |
| Pino 67 | NC — Not connected (per datasheet) |
| Pino 68 | NC — Not connected (per datasheet) |
Aplicações típicas
MC68EC000E116 é adequado para 6 aplicaçãos: Industrial PLC and Motion Controllers, Legacy Arcade Gaming Hardware, Avionics and Military Subsystems, Point-of-Sale Terminals, Medical Monitoring Instruments, Educational M68k Development Platforms.
Industrial PLC and Motion Controllers
The MC68EC000E116 fits industrial PLC and motion controller designs where M68k toolchain code and field-proven firmware are preserved across long product lifecycles. With a 16 MHz clock and 32-bit internal registers, the E116 executes 4-cycle register MOVE instructions in 250 ns, providing deterministic timing for PID loop scheduling. Its 24-bit address bus supports up to 16 MB of program and data memory, sufficient for ladder-logic runtime interpreters and stepper/servo state machines. The 68-pin PLCC package accepts sockets, easing field replacement of failed modules without desoldering.
Recomendado
Legacy Arcade Gaming Hardware
The MC68EC000E116 powers classic arcade game boards where its 32-bit internal architecture and 16 MHz throughput deliver the multiply-accumulate throughput required for sprite scaling and parallax scrolling. Its 24-bit address space allows direct addressing of large ROM-resident game assets without bank-switching hardware. The 68-pin PLCC package was widely adopted by arcade board manufacturers in the early 1990s and remains the standard format for replacement parts. Designers maintaining these systems benefit from the E116's compatibility with the original MC68000/EC000 assembly-language game engines.
Recomendado
Avionics and Military Subsystems
The MC68EC000E116 family supports avionics subsystems where long-life-cycle support and deterministic M68k execution are required. Although the standard E116 is commercial-temperature, the equivalent -grade variants (-Q suffix) provide the same 16 MHz throughput with MIL-STD-883 screening. The 24-bit address bus accommodates the memory maps typical of mission computers and engine-control units, while the seven-level vectored interrupt controller simplifies the integration of sensor and communication interrupts. The 68-pin PLCC package is widely accepted by avionics integrators for retrofit programs.
Recomendado
Point-of-Sale Terminals
The MC68EC000E116 fits point-of-sale terminals where moderate CPU throughput, deterministic execution, and long-life component availability are paramount. At 16 MHz, the EC000 executes tens of millions of M68k instructions per second, easily handling transaction processing, encryption, and printer control. Its low peripheral count keeps the BOM small, while the established M68k toolchain (C compilers, assemblers, RTOSes like pSOS and VxWorks) accelerates firmware development. The PLCC-68 package allows socket-based upgrades from earlier EC000-based designs.
Recomendado
Medical Monitoring Instruments
The MC68EC000E116 supports medical monitoring instruments where deterministic M68k code paths are validated for regulatory submissions. Its 32-bit internal registers simplify the implementation of high-resolution ECG signal-processing algorithms, while the 16-bit data bus provides adequate throughput for low-bandwidth analog front ends. Long-life support and legacy M68k firmware certification make the EC000 platform attractive for installed-base medical devices, where product lifespans can exceed 15 years. The 68-PLCC package is widely accepted for medical PCB designs.
Recomendado
Educational M68k Development Platforms
The MC68EC000E116 is well suited to educational and development platforms teaching M68000 assembly language and computer architecture. Its 16 MHz execution provides clear, observable instruction timing on logic analyzers and oscilloscopes, while the 68-pin PLCC package is easy to socket and replace in lab environments. The EC000's stripped-down external bus makes it pedagogically clearer than the full MC68000, while preserving the same programmer's model. University courses on real-time systems and RTOS porting use the EC000 as a reference platform.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC68EC000E116 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MC68EC000EI10 | MC68EC000EI12 | MC68HC000CEI16 | MC68SEC000AEI16 | MC68EC000FN16 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors (Freescale) | 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 | QFP-68 |
| Clock Frequency | 16 MHz | 10 MHz | 12 MHz | 16 MHz | 16 MHz | 16 MHz |
| Internal Register Width | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit |
| External Data Bus Width | 16-bit | 8/16-bit multiplexed | 8/16-bit multiplexed | 16-bit | 16-bit | 8/16-bit multiplexed |
| Address Bus Width | 24-bit | 24-bit | 24-bit | 24-bit | 24-bit | 24-bit |
| Operating Temperature | 0C to +70C | 0C to +70C | 0C to +70C | 0C to +70C | 0C to +70C | 0C to +70C |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Principais diferenciais
- Balanced price/performance position in the M68000 family (vs MC68EC000EI10)
- HCMOS power efficiency at the same 16 MHz clock rate (vs MC68HC000CEI16)
- Standard EC000 instruction set without full MC68000 bus (vs MC68000-10)
Notas de projeto
Estimated: the MC68EC000E116 draws approximately 50-70 mA at 16 MHz from a single 5 V supply based on typical HCMOS implementations in the M68k family. Decoupling should use a 0.1 uF ceramic capacitor placed within 5 mm of each VCC pin (pins 40, 42, 44, 64), plus a bulk 10 uF tantalum at the regulator output. Power-on reset must hold RESET low for at least 100 ms after VCC reaches 4.5 V to allow internal clock stabilization; using a MAX705 or equivalent supervisor is recommended.
The 68-pin PLCC bus signals should be routed with controlled impedance (typical 50-ohm microstrip) on a four-layer PCB with a dedicated ground plane. Critical signals (AS, UDS, LDS, DTACK, R/W) must be length-matched within 12 mm to avoid bus-cycle skew at 16 MHz. Place the clock oscillator within 25 mm of the CLK pin and guard it with a ground ring to prevent injection of bus noise into the clock reference. Place a 100 ohm series resistor on the RESET line to damp ringing.
Common pitfalls when designing with the MC68EC000E116: (1) Failing to generate DTACK from external wait-state logic - memory slower than the EC000's 4-cycle minimum can corrupt bus cycles; (2) Driving all 16 data bus lines on 8-bit memories - the EC000 supports byte selects via UDS/LDS but you must use them correctly; (3) Floating FC0-FC2 pins during reset - they must be pulled to a defined state for correct supervisor/user boot mode; (4) Using the BERR signal with the EC000 - the EC000 lacks the bus-error logic of the full MC68000.
Estimated: typical power dissipation of the MC68EC000E116 is approximately 250-350 mW at 16 MHz with all outputs active, well within the PLCC-68 package's thermal envelope (theta_JA roughly 50 C/W on a standard 4-layer board). The commercial 0C to +70C operating range gives 35C margin above typical 35C ambient for self-heating. No heatsink is required for normal operation; however, designers should verify junction temperature in sealed enclosures with limited airflow.
Informações de conformidade
Lifecycle NRND (Not Recommended for New Designs). The original MC68EC000E116 was designed before RoHS directives; specific date codes may or may not be RoHS-compliant. Buyers should request certificates of conformance from authorized distributors (Rochester Electronics, Avnet) for European market compliance verification.
