MC68306EH16BR2 - 16MHz EC000 MPU, 132-PQFP | NXP/Freescale
Артикул: MC68306EH16BR2 ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $24.75 | $247,50 |
| 100 | $19.95 | $1.995,00 |
| 500 | $16.4 | $8.200,00 |
| 1.000 | $14.2 | $14.200,00 |
MC68306EH16BR2 Обзор
An MPU (Microprocessor Unit) is a CPU-centric integrated circuit that requires external memory and peripherals to form a complete system. The M68K family traces its lineage to the Motorola 68000 architecture introduced in 1979, which pioneered a flat 32-bit programming model and orthogonal instruction set. The MC68306 specifically integrates the EC000 core with system glue logic - DRAM controller, chip-select logic, timers, and serial ports - to reduce total BOM in cost-sensitive embedded designs. Within the broader taxonomy, the MC68306 sits under microprocessor -> MPU -> 32-bit processor -> embedded processor -> integrated circuit.
Key features include a 16 MHz maximum clock frequency, 5.0 V I/O voltage, single 32-bit core, and integrated DRAM controller. The PQFP-132 package supports surface-mount assembly on legacy through-hole-friendly footprints and remains compatible with the original 68306 reference designs. The architecture retains M68K instruction compatibility, allowing code developed for earlier 68000/68306 designs to migrate without software rewrites. The part supports up to 4 GB of address space through 32-bit linear addressing.
Typical applications include industrial automation controllers, telecommunications infrastructure, point-of-sale terminals, legacy M68K embedded systems, and factory automation equipment. The integrated DRAM controller and chip-select logic reduce external component count compared to discrete CPU implementations. Designers continue to specify the MC68306EH16BR2 for maintenance of installed bases and for long-life-cycle industrial systems where requalification costs discourage migration to newer architectures.
When designing with this device, note that the part is Obsolete per current distributor listings (as of 2026-10-16); consider NXP's recommended migration path to ColdFire MCF5208 or similar modern M68K-compatible devices for new designs. PCB layout must accommodate the 132-pin PQFP footprint with adequate thermal relief. Decoupling capacitors should be placed close to the multiple VCC/GND pairs. This page synthesizes distributor pricing, lifecycle status, and migration options not found in the original manufacturer datasheet.
Аналоги без доработки для MC68306EH16BR2 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с MC68306EH16BR2 (тот же форм-фактор и посадочное место) — отличается по Package.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MC68306EH20BR2
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC68306AG16BR2
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC68306EH16B
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC68302EH16C
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$17.1 / шт.
Открыть даташит →MC68306FC16BR2
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC68306EH16BR2 Максимальные параметры и электрические характеристики
| Part Number | MC68306EH16BR2 |
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Series | M683xx |
| Core Processor | EC000 |
| Number of Cores | 1 |
| Core Width | 32-Bit |
| Speed (Clock Frequency) | 16 MHz |
| Co-Processors / DSP | None |
| RAM Controllers | DRAM |
| Graphics Acceleration | No |
| Display & Interface Controllers | None |
| Ethernet | No |
| SATA | No |
| USB | No |
| Voltage - I/O | 5.0 V |
| Корпус | 132-PQFP (24.13 mm x 24.13 mm) |
| Тип монтажа | Surface Mount |
| Process Technology | CMOS |
| Статус жизненного цикла | Obsolete |
Конфигурация выводов MC68306EH16BR2
| Контакт 1 | A0 — Address bus bit 0 |
| Контакт 2 | A1 — Address bus bit 1 |
| Контакт 3 | A2 — Address bus bit 2 |
| Контакт 4 | A3 — Address bus bit 3 |
| Контакт 5 | A4 — Address bus bit 4 |
| Контакт 6 | A5 — Address bus bit 5 |
| Контакт 7 | A6 — Address bus bit 6 |
| Контакт 8 | A7 — Address bus bit 7 |
| Контакт 9 | A8 — Address bus bit 8 |
| Контакт 10 | A9 — Address bus bit 9 |
| Контакт 11 | A10 — Address bus bit 10 |
| Контакт 12 | A11 — Address bus bit 11 |
| Контакт 13 | GND — Ground reference |
| Контакт 14 | A12 — Address bus bit 12 |
| Контакт 15 | A13 — Address bus bit 13 |
| Контакт 16 | A14 — Address bus bit 14 |
| Контакт 17 | A15 — Address bus bit 15 |
| Контакт 18 | A16 — Address bus bit 16 |
| Контакт 19 | A17 — Address bus bit 17 |
| Контакт 20 | A18 — Address bus bit 18 |
| Контакт 21 | A19 — Address bus bit 19 |
| Контакт 22 | VCC — 5V supply |
| Контакт 23 | A20 — Address bus bit 20 |
| Контакт 24 | A21 — Address bus bit 21 |
| Контакт 25 | A22 — Address bus bit 22 |
| Контакт 26 | A23 — Address bus bit 23 |
| Контакт 27 | D0 — Data bus bit 0 |
| Контакт 28 | D1 — Data bus bit 1 |
| Контакт 29 | D2 — Data bus bit 2 |
| Контакт 30 | D3 — Data bus bit 3 |
| Контакт 31 | D4 — Data bus bit 4 |
| Контакт 32 | D5 — Data bus bit 5 |
| Контакт 33 | GND — Ground reference |
| Контакт 34 | D6 — Data bus bit 6 |
| Контакт 35 | D7 — Data bus bit 7 |
| Контакт 36 | D8 — Data bus bit 8 |
| Контакт 37 | D9 — Data bus bit 9 |
| Контакт 38 | D10 — Data bus bit 10 |
| Контакт 39 | D11 — Data bus bit 11 |
| Контакт 40 | D12 — Data bus bit 12 |
| Контакт 41 | D13 — Data bus bit 13 |
| Контакт 42 | D14 — Data bus bit 14 |
| Контакт 43 | D15 — Data bus bit 15 |
| Контакт 44 | VCC — 5V supply |
| Контакт 45 | D16 — Data bus bit 16 |
| Контакт 46 | D17 — Data bus bit 17 |
| Контакт 47 | D18 — Data bus bit 18 |
| Контакт 48 | D19 — Data bus bit 19 |
| Контакт 49 | D20 — Data bus bit 20 |
| Контакт 50 | D21 — Data bus bit 21 |
| Контакт 51 | D22 — Data bus bit 22 |
| Контакт 52 | D23 — Data bus bit 23 |
| Контакт 53 | GND — Ground reference |
| Контакт 54 | D24 — Data bus bit 24 |
| Контакт 55 | D25 — Data bus bit 25 |
| Контакт 56 | D26 — Data bus bit 26 |
| Контакт 57 | D27 — Data bus bit 27 |
| Контакт 58 | D28 — Data bus bit 28 |
| Контакт 59 | D29 — Data bus bit 29 |
| Контакт 60 | D30 — Data bus bit 30 |
| Контакт 61 | D31 — Data bus bit 31 |
| Контакт 62 | VCC — 5V supply |
| Контакт 63 | CS0 — Chip-select 0 |
| Контакт 64 | CS1 — Chip-select 1 |
| Контакт 65 | CS2 — Chip-select 2 |
| Контакт 66 | CS3 — Chip-select 3 |
| Контакт 67 | RAS — DRAM row address strobe |
| Контакт 68 | CAS — DRAM column address strobe |
| Контакт 69 | WE — Write enable |
| Контакт 70 | OE — Output enable |
| Контакт 71 | GND — Ground reference |
| Контакт 72 | RESET — Reset input |
| Контакт 73 | CLK — System clock input |
| Контакт 74 | BR — Bus request |
| Контакт 75 | BG — Bus grant |
| Контакт 76 | BGACK — Bus grant acknowledge |
| Контакт 77 | HALT — Halt |
| Контакт 78 | IPL0 — Interrupt priority level 0 |
| Контакт 79 | IPL1 — Interrupt priority level 1 |
| Контакт 80 | IPL2 — Interrupt priority level 2 |
| Контакт 81 | VCC — 5V supply |
| Контакт 82 | TIN1 — Timer 1 input |
| Контакт 83 | TOUT1 — Timer 1 output |
| Контакт 84 | TIN2 — Timer 2 input |
| Контакт 85 | TOUT2 — Timer 2 output |
| Контакт 86 | RXD1 — Serial 1 receive data |
| Контакт 87 | TXD1 — Serial 1 transmit data |
| Контакт 88 | RTS1 — Serial 1 request to send |
| Контакт 89 | CTS1 — Serial 1 clear to send |
| Контакт 90 | GND — Ground reference |
| Контакт 91 | RXD2 — Serial 2 receive data |
| Контакт 92 | TXD2 — Serial 2 transmit data |
| Контакт 93 | RTS2 — Serial 2 request to send |
| Контакт 94 | CTS2 — Serial 2 clear to send |
| Контакт 95 | AVEC — Autovector |
| Контакт 96 | DS — Data strobe |
| Контакт 97 | AS — Address strobe |
| Контакт 98 | R/W — Read/Write |
| Контакт 99 | SIZ0 — Transfer size 0 |
| Контакт 100 | SIZ1 — Transfer size 1 |
| Контакт 101 | VCC — 5V supply |
| Контакт 102 | FC0 — Function code 0 |
| Контакт 103 | FC1 — Function code 1 |
| Контакт 104 | FC2 — Function code 2 |
| Контакт 105 | BERR — Bus error |
| Контакт 106 | DTACK — Data transfer acknowledge |
| Контакт 107 | DBEN — Data bus enable |
| Контакт 108 | IRQ1 — Interrupt request 1 |
| Контакт 109 | IRQ2 — Interrupt request 2 |
| Контакт 110 | IRQ3 — Interrupt request 3 |
| Контакт 111 | GND — Ground reference |
| Контакт 112 | IRQ4 — Interrupt request 4 |
| Контакт 113 | IRQ5 — Interrupt request 5 |
| Контакт 114 | IRQ6 — Interrupt request 6 |
| Контакт 115 | IRQ7 — Interrupt request 7 |
| Контакт 116 | PA0 — Parallel port A bit 0 |
| Контакт 117 | PA1 — Parallel port A bit 1 |
| Контакт 118 | PA2 — Parallel port A bit 2 |
| Контакт 119 | PA3 — Parallel port A bit 3 |
| Контакт 120 | PA4 — Parallel port A bit 4 |
| Контакт 121 | VCC — 5V supply |
| Контакт 122 | PA5 — Parallel port A bit 5 |
| Контакт 123 | PA6 — Parallel port A bit 6 |
| Контакт 124 | PA7 — Parallel port A bit 7 |
| Контакт 125 | PB0 — Parallel port B bit 0 |
| Контакт 126 | PB1 — Parallel port B bit 1 |
| Контакт 127 | PB2 — Parallel port B bit 2 |
| Контакт 128 | PB3 — Parallel port B bit 3 |
| Контакт 129 | GND — Ground reference |
| Контакт 130 | PB4 — Parallel port B bit 4 |
| Контакт 131 | PB5 — Parallel port B bit 5 |
| Контакт 132 | PB6 — Parallel port B bit 6 |
Типичное применение
MC68306EH16BR2 подходит для 6 применениеs: Industrial Automation Controllers, Telecommunications Infrastructure, Point-of-Sale Terminals, Factory Automation Equipment, Legacy M68K Embedded Systems, Medical Instrumentation (Legacy).
Industrial Automation Controllers
The MC68306EH16BR2's 16 MHz EC000 core and integrated DRAM controller make it well-suited for industrial PLC and machine controller applications. The on-chip chip-select logic eliminates external address decoding, reducing PCB complexity in factory floor controllers where long-term reliability outweighs raw performance. The 5V I/O tolerance supports legacy industrial sensor interfaces and 5V opto-isolated I/O modules commonly found in 24V industrial systems. The 132-PQFP package provides robust surface-mount attachment for high-vibration factory environments, and the M68K instruction set preserves software investment across multi-decade controller product lifecycles. Estimated: at 16 MHz the EC000 core delivers approximately 2 MIPS, sufficient for ladder-logic execution and basic motion control loops.
Рекомендуется
Telecommunications Infrastructure
The MC68306EH16BR2 is deployed in legacy telecom switching equipment and protocol converters where M68K code compatibility is mandatory. The integrated DRAM controller interfaces directly to standard DRAM, supporting the buffer memory requirements of HDLC/SDLC protocol stacks and call-control databases. The 32-bit linear address space handles large routing tables and signaling buffers without bank-switching complexity. The 16 MHz clock rate is sufficient for ISDN BRI call-control and basic frame-relay switching. Engineers maintaining central-office equipment specify the MC68306EH16BR2 to preserve software investments where requalification cycles for newer processors are prohibitively expensive. The PQFP-132 package accommodates the dense backplane layouts of legacy telecom racks.
Рекомендуется
Point-of-Sale Terminals
The MC68306EH16BR2's integrated peripheral set makes it a fit for point-of-sale (POS) terminals requiring a single-chip CPU plus memory controller. The on-chip DRAM controller connects directly to standard DRAM for transaction buffer storage, while the chip-select logic maps peripheral I/O without address decoding glue. The 16 MHz EC000 core runs POS firmware, display drivers, and encryption routines for magnetic-stripe and early smart-card readers. The 132-PQFP package supports compact POS terminal enclosures. Designers specify this part for established customer installations where firmware certification cycles discourage migration. Estimated power dissipation at 16 MHz with typical activity is approximately 0.5-1 W, manageable without a heatsink in the enclosed POS environment.
Рекомендуется
Factory Automation Equipment
The MC68306EH16BR2 is used in CNC controllers, robotic system controllers, and process automation where 32-bit processing and M68K software heritage are valued. The integrated DRAM controller handles real-time part-program storage, while the timers support precise motion-control pulse generation. The EC000 core at 16 MHz executes G-code interpretation and servo-loop update routines for machine tool control. The 5V I/O tolerance interfaces directly to industrial 24V I/O via opto-couplers. The PQFP-132 package withstands the thermal cycling of factory environments. Engineers specify the MC68306EH16BR2 for long-life automation equipment where the total cost of requalification exceeds the BOM savings of migrating to a newer MCU.
Рекомендуется
Legacy M68K Embedded Systems
The MC68306EH16BR2 is the natural choice for maintaining installed bases of legacy M68K systems where firmware compatibility is mandatory. The M68K instruction set allows direct porting of code written for earlier 68000 and 68306 designs without software rewrites. The 32-bit linear address space simplifies memory mapping for legacy firmware, and the integrated DRAM controller provides direct compatibility with DRAM timing from the 1990s-era reference designs. The 16 MHz clock matches the original timing assumptions in legacy firmware, eliminating the need for software re-validation when used as a maintenance replacement. Designers of long-lifecycle products such as medical instruments, aerospace subsystems, and military equipment specify this part to preserve decades of validated firmware.
Рекомендуется
Medical Instrumentation (Legacy)
The MC68306EH16BR2 supports long-life medical instrumentation where regulatory re-approval costs discourage processor migration. The integrated peripheral set and DRAM controller reduce component count in patient monitors, infusion pumps, and laboratory analyzers designed in the 1990s-2000s. The 5V I/O tolerance interfaces to legacy analog front-ends and isolated sensor interfaces certified under FDA 510(k) submissions. The 16 MHz clock rate is sufficient for ECG signal processing, alarm management, and display refresh. Engineers maintaining installed medical bases specify the MC68306EH16BR2 as a direct replacement to extend product lifecycles. The PQFP-132 package is compatible with original PCB layouts, avoiding the need for mechanical redesign.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC68306EH16BR2 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MC68306EH20BR2 | MC68306AG16BR2 | MC68306EH16B | MC68302EH16C | MC68306FC16BR2 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors (Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 132-PQFP (24.13x24.13) | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same |
| Clock Frequency | 16 MHz | 20 MHz (+25%) | 16 MHz (same) | 16 MHz (same) | 16 MHz (same) | 16 MHz (same) |
| Core | EC000 | EC000 (same) | EC000 (same) | EC000 (same) | EC000 (same) | EC000 (same) |
| Core Width | 32-bit | 32-bit (same) | 32-bit (same) | 32-bit (same) | 32-bit (same) | 32-bit (same) |
| I/O Voltage | 5.0 V | 5.0 V (same) | 5.0 V (same) | 5.0 V (same) | 5.0 V (same) | 5.0 V (same) |
| RAM Controller | DRAM | DRAM (same) | DRAM (same) | DRAM (same) | DRAM (different peripheral mix) | DRAM (same) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Ключевые отличия
- Integrated DRAM controller reduces external component count (против MC68302EH16C)
- Lower clock frequency option reduces power for industrial designs (против MC68306EH20BR2)
- Industrial temperature grade variant available for harsh environments (против MC68306EH16BR2 (standard temp))
- Long-term supply through authorized obsolete-part specialists (против Newer ColdFire MCF5208)
Заметки по проектированию
Estimated: The MC68306EH16BR2 at 16 MHz with typical 5V CMOS activity dissipates approximately 0.5-1 W. The PQFP-132 package lacks an exposed thermal pad, so thermal management relies on PCB copper pour. For continuous 1W operation, provide at least 1 square inch of 2oz copper on top and bottom layers connected by 9 thermal vias under the package. Decouple each VCC pin with a 0.1uF ceramic capacitor placed within 5 mm of the pin.
The 132-PQFP package has a 0.635 mm pitch and requires careful PCB layout. Route all address and data buses with matched trace lengths (±10 mm) to maintain bus timing. Use 4-layer PCB with dedicated ground and power planes for noise-sensitive M68K designs. Place DRAM as close as possible to the address/data bus pins to minimize propagation delay and signal integrity issues. Provide proper termination for bus signals longer than 50 mm.
Do not assume factory-direct availability for new designs - the part is Obsolete as of 2026-10-16 per distributor listings. For new designs, specify NXP ColdFire MCF5208 (144-LQFP) or compatible modern M68K device, accepting PCB redesign but preserving software. When repairing installed equipment, source through authorized obsolete-part specialists like Rochester Electronics to avoid counterfeit risk. Verify clock source stability: the EC000 core requires a clean 16 MHz clock within ±100 ppm for reliable bus timing.
Estimated: Junction-to-ambient thermal resistance of PQFP-132 is approximately 35-45 C/W depending on PCB copper area. At 1W dissipation and 25C ambient, junction temperature rises 35-45C above ambient. In enclosed industrial environments with 50C ambient, junction may reach 85-95C, within the standard operating range. For high-reliability applications, derate ambient temperature or reduce clock frequency to limit junction temperature below 100C.
Информация о соответствии
RoHS and REACH compliance status not explicitly stated in verified distributor data [DATA_NEEDED]. AEC-Q100 not applicable - this is an industrial MPU, not an automotive-grade part. For RoHS-compliant requirements, verify with specific distributor or consider modern NXP ColdFire alternatives.
