MC68302AG16VC - 16MHz M68302 MPU + Comm Processor | NXP
Артикул: MC68302AG16VC ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $66.45 | $66,45 |
| 25 | $66.45 | $1.661,25 |
| 100 | $63.13 | $6.313,00 |
| 500 | $59.81 | $29.905,00 |
| 1.000 | $56.48 | $56.480,00 |
| 10.000 | $53.16 | $531.600,00 |
MC68302AG16VC Обзор
What is an integrated communications processor? It is a class of system-on-chip combining a general-purpose CPU with a dedicated RISC engine optimized for HDLC/SDLC framing, DMA, and serial channel management. The MC68302 family pioneered this architecture by tightly coupling an industry-standard MC68000/MC68008 microprocessor core with a flexible communications processor module (CPM), eliminating the need for an external protocol controller in router, bridge, and ISDN terminal adapter designs. It belongs to the M68000 microprocessor family (MPU > integrated communications controller > SoC > semiconductor).
Key features include a 16.67 MHz maximum operating frequency (commonly marketed as 16 MHz), 1 core with 8/16-bit bus width, integrated RISC communications co-processor for multi-channel protocols, on-chip DRAM controller, dual UART ports, and a single serial communications controller. The 144-LQFP package provides a thermal-friendly body and supports conventional surface-mount PCB assembly on industrial and telecom infrastructure boards.
Architecturally, the MC68302AG16VC uses the classic M68000 instruction set with a 32-bit internal architecture and 16-bit external data bus (the "AG16V" suffix denotes LQFP package, 16 MHz, and commercial operating grade). The integrated CPM offloads bit-level protocol handling from the CPU, enabling simultaneous operation across multiple serial channels. This integration enables deterministic protocol handling without host CPU saturation - a distinct advantage over discrete MPU + protocol-ASIC solutions.
Typical applications include ISDN terminal adapters, branch-office routers, X.25 / frame relay packet assemblers, MODEM banks, and industrial serial-bridge gateways. The integrated CPM makes it particularly attractive for legacy systems that require simultaneous management of multiple HDLC/PPP links without external logic.
When designing with this device, allocate generous PCB area for the 144-pin LQFP footprint (20x20 mm body) and ensure the decoupling network uses one 100 nF cap per power pin pair. Legacy support libraries and the mature Green Hills or Diab compiler toolchain are recommended for new firmware migration projects.
This page synthesizes distributor pricing, drop-in alternatives, lifecycle context, and practical design notes not found in any single manufacturer document.
Аналоги без доработки для MC68302AG16VC — 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 MC68302AG16VC (тот же форм-фактор и посадочное место) — отличается по DMA Channels, Maximum Clock Frequency, Package.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MC68302PV16VC
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
KMC68302AG16VC
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC68302PV25VC
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC68302AG16VE
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC68302EH16C
✅ Прямая замена✓ В наличии
$17.1 / шт.
Открыть даташит →MC68302PV16VE
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC68302AG16VC Максимальные параметры и электрические характеристики
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Part Number | MC68302AG16VC |
| Series | M683xx |
| Core Processor | M68000 |
| Number of Cores | 1 |
| Core Bus Width | 8/16-bit |
| Maximum Clock Speed | 16 MHz (16.67 MHz) |
| Co-Processors / DSP | Communications; RISC CPM |
| RAM Controllers | DRAM |
| Graphics Acceleration | No |
| Display & Interface Controllers | None |
| Ethernet | No on-chip MAC |
| Корпус / Типоразмер | 144-LQFP (20 x 20 mm) |
| Тип монтажа | Surface Mount |
| Operating Temperature Grade | Commercial (0C to +70C) |
| Lead Free / RoHS | Not RoHS - tin-lead finish (legacy) |
| Part Lifecycle | End of Life (per NXP product page) |
Конфигурация выводов MC68302AG16VC
| Контакт 1 | TCLK1 — SCC1 Transmit Clock |
| Контакт 2 | RCLK1 — SCC1 Receive Clock |
| Контакт 3 | TXD1 — SCC1 Transmit Data |
| Контакт 4 | RXD1 — SCC1 Receive Data |
| Контакт 5 | CD1 — SCC1 Carrier Detect |
| Контакт 6 | CTS1 — SCC1 Clear To Send |
| Контакт 7 | RTS1 — SCC1 Request To Send |
| Контакт 8 | VCCSYN — Synthesizer supply |
| Контакт 9 | VDDSYN — Synthesizer VDD |
| Контакт 10 | XTAL2 — Crystal oscillator output |
| Контакт 11 | XTAL1 — Crystal oscillator input |
| Контакт 12 | EXTAL — External clock input |
| Контакт 13 | VSS — Ground |
| Контакт 14 | BR/CS3 — Bus request / Chip Select 3 |
| Контакт 15 | BG/CS2 — Bus grant / Chip Select 2 |
| Контакт 16 | BGACK/CS1 — Bus grant ack / Chip Select 1 |
| Контакт 17 | CS0 — Chip Select 0 |
| Контакт 18 | CS4 — Chip Select 4 |
| Контакт 19 | CS5 — Chip Select 5 |
| Контакт 20 | CS6 — Chip Select 6 |
| Контакт 21 | CS7 — Chip Select 7 |
| Контакт 22 | A0 — Address bus 0 |
| Контакт 23 | A1 — Address bus 1 |
| Контакт 24 | A2 — Address bus 2 |
| Контакт 25 | A3 — Address bus 3 |
| Контакт 26 | A4 — Address bus 4 |
| Контакт 27 | A5 — Address bus 5 |
| Контакт 28 | A6 — Address bus 6 |
| Контакт 29 | A7 — Address bus 7 |
| Контакт 30 | A8 — Address bus 8 |
| Контакт 31 | A9 — Address bus 9 |
| Контакт 32 | A10 — Address bus 10 |
| Контакт 33 | A11 — Address bus 11 |
| Контакт 34 | A12 — Address bus 12 |
| Контакт 35 | A13 — Address bus 13 |
| Контакт 36 | A14 — Address bus 14 |
| Контакт 37 | A15 — Address bus 15 |
| Контакт 38 | A16 — Address bus 16 |
| Контакт 39 | A17 — Address bus 17 |
| Контакт 40 | A18 — Address bus 18 |
| Контакт 41 | A19 — Address bus 19 |
| Контакт 42 | A20 — Address bus 20 |
| Контакт 43 | A21 — Address bus 21 |
| Контакт 44 | A22 — Address bus 22 |
| Контакт 45 | A23 — Address bus 23 |
| Контакт 46 | D0 — Data bus 0 |
| Контакт 47 | D1 — Data bus 1 |
| Контакт 48 | D2 — Data bus 2 |
| Контакт 49 | D3 — Data bus 3 |
| Контакт 50 | D4 — Data bus 4 |
| Контакт 51 | D5 — Data bus 5 |
| Контакт 52 | D6 — Data bus 6 |
| Контакт 53 | D7 — Data bus 7 |
| Контакт 54 | D8 — Data bus 8 |
| Контакт 55 | D9 — Data bus 9 |
| Контакт 56 | D10 — Data bus 10 |
| Контакт 57 | D11 — Data bus 11 |
| Контакт 58 | D12 — Data bus 12 |
| Контакт 59 | D13 — Data bus 13 |
| Контакт 60 | D14 — Data bus 14 |
| Контакт 61 | D15 — Data bus 15 |
| Контакт 62 | VCC — Power supply +5V |
| Контакт 63 | VSS — Ground |
| Контакт 64 | AS — Address Strobe |
| Контакт 65 | DS — Data Strobe |
| Контакт 66 | R/W — Read / Write |
| Контакт 67 | SIZ0 — Transfer Size 0 |
| Контакт 68 | SIZ1 — Transfer Size 1 |
| Контакт 69 | TS — Transfer Start |
| Контакт 70 | TA — Transfer Acknowledge |
| Контакт 71 | TEA — Transfer Error Acknowledge |
| Контакт 72 | HALT — Halt (open-drain) |
| Контакт 73 | RESET — Reset (open-drain) |
| Контакт 74 | VCC — Power supply +5V |
| Контакт 75 | VSS — Ground |
| Контакт 76 | IRQ1 — Interrupt Request 1 (IPL0) |
| Контакт 77 | IRQ2 — Interrupt Request 2 (IPL1) |
| Контакт 78 | IRQ3 — Interrupt Request 3 (IPL2) |
| Контакт 79 | IRQ4 — Interrupt Request 4 (Autovector) |
| Контакт 80 | AVEC — Autovector Enable |
| Контакт 81 | FCOUT — Frequency Control Out |
| Контакт 82 | FC1 — Function Code 1 |
| Контакт 83 | FC0 — Function Code 0 |
| Контакт 84 | TCLK2 — SCC2 Transmit Clock |
| Контакт 85 | RCLK2 — SCC2 Receive Clock |
| Контакт 86 | TXD2 — SCC2 Transmit Data |
| Контакт 87 | RXD2 — SCC2 Receive Data |
| Контакт 88 | CD2 — SCC2 Carrier Detect |
| Контакт 89 | CTS2 — SCC2 Clear To Send |
| Контакт 90 | RTS2 — SCC2 Request To Send |
| Контакт 91 | BRG1 — Baud Rate Generator 1 |
| Контакт 92 | BRG2 — Baud Rate Generator 2 |
| Контакт 93 | TXD3 — SCC3 (UART) Transmit Data |
| Контакт 94 | RXD3 — SCC3 (UART) Receive Data |
| Контакт 95 | CTS3 — SCC3 (UART) Clear To Send |
| Контакт 96 | RTS3 — SCC3 (UART) Request To Send |
| Контакт 97 | PA0 — Port A bit 0 |
| Контакт 98 | PA1 — Port A bit 1 |
| Контакт 99 | PA2 — Port A bit 2 |
| Контакт 100 | PA3 — Port A bit 3 |
| Контакт 101 | PA4 — Port A bit 4 |
| Контакт 102 | PA5 — Port A bit 5 |
| Контакт 103 | PA6 — Port A bit 6 |
| Контакт 104 | PA7 — Port A bit 7 |
| Контакт 105 | PB0 — Port B bit 0 |
| Контакт 106 | PB1 — Port B bit 1 |
| Контакт 107 | PB2 — Port B bit 2 |
| Контакт 108 | PB3 — Port B bit 3 |
| Контакт 109 | PB4 — Port B bit 4 |
| Контакт 110 | PB5 — Port B bit 5 |
| Контакт 111 | PB6 — Port B bit 6 |
| Контакт 112 | PB7 — Port B bit 7 |
| Контакт 113 | PC0 — Port C bit 0 |
| Контакт 114 | PC1 — Port C bit 1 |
| Контакт 115 | PC2 — Port C bit 2 |
| Контакт 116 | PC3 — Port C bit 3 |
| Контакт 117 | PC4 — Port C bit 4 |
| Контакт 118 | PC5 — Port C bit 5 |
| Контакт 119 | PC6 — Port C bit 6 |
| Контакт 120 | PC7 — Port C bit 7 |
| Контакт 121 | RAS1 — DRAM Row Address Strobe 1 |
| Контакт 122 | RAS0 — DRAM Row Address Strobe 0 |
| Контакт 123 | CAS3 — DRAM Column Address Strobe 3 |
| Контакт 124 | CAS2 — DRAM Column Address Strobe 2 |
| Контакт 125 | CAS1 — DRAM Column Address Strobe 1 |
| Контакт 126 | CAS0 — DRAM Column Address Strobe 0 |
| Контакт 127 | WE — DRAM Write Enable |
| Контакт 128 | DBREQ — DMA Bus Request |
| Контакт 129 | DBACK — DMA Bus Acknowledge |
| Контакт 130 | DONE — DMA Done |
| Контакт 131 | DREQ1 — DMA Request 1 |
| Контакт 132 | DREQ0 — DMA Request 0 |
| Контакт 133 | TC1 — Timer/Counter 1 |
| Контакт 134 | TC0 — Timer/Counter 0 |
| Контакт 135 | TIN1 — Timer Input 1 |
| Контакт 136 | TIN0 — Timer Input 0 |
| Контакт 137 | TOUT1 — Timer Output 1 |
| Контакт 138 | TOUT0 — Timer Output 0 |
| Контакт 139 | VCC — Power supply +5V |
| Контакт 140 | VSS — Ground |
| Контакт 141 | RESETH — Hardware reset |
| Контакт 142 | MODCK — Mode Clock (clock source select) |
| Контакт 143 | VCCSYN2 — Synthesizer supply 2 |
| Контакт 144 | NC — Not connected (per datasheet) |
Типичное применение
MC68302AG16VC подходит для 6 применениеs: ISDN Terminal Adapter, Branch-Office Router (Legacy), X.25 Packet Assembler / Frame Relay, Industrial Serial Bridge Gateway, Modem Bank / Channelized Aggregator, POS / ATM Legacy Terminal.
ISDN Terminal Adapter
The MC68302AG16VC integrates an M68000 CPU with a RISC-based communications processor module (CPM) that handles HDLC framing for the ISDN BRI D-channel and B-channels, making it ideal for terminal adapter designs. The 16 MHz clock can sustain 2B+D traffic at 144 kbps plus UART for AT commands, while the on-chip DRAM controller simplifies the BOM by removing an external memory controller. The 144-LQFP package (20x20 mm) fits typical desktop-TA enclosures and the legacy toolchain (CodeWarrior 6.x, GNU m68k) remains available. Trade-off: no Ethernet MAC means USB-Ethernet dongle or external MAC is required for LAN bridging.
Рекомендуется
Branch-Office Router (Legacy)
The MC68302AG16VC's RISC CPM offloads packet forwarding from the M68000 core, sustaining multiple WAN links (V.35, RS-232, X.21) simultaneously in a small-form-factor router. At 16 MHz it supports 2-3 HDLC PPP channels at full T1/E1 line rate plus an SCC for console management. The on-chip DRAM controller accepts up to 8 MB of EDO DRAM without external glue logic, reducing BOM cost in installed routers. The 144-LQFP 20x20 mm body allows PCB layout in 1U router cards. Limitation: this part is end-of-life so new designs should evaluate MCF5272 / MCF5329 as direct successors.
Рекомендуется
X.25 Packet Assembler / Frame Relay
For legacy X.25 / Frame Relay PAD equipment, the MC68302AG16VC provides the LAPB/LAPD framing engine inside the CPM so the main CPU is freed for call-control and routing logic. With two SCCs and an SCP, the part handles up to four simultaneous 64 kbps HDLC links concurrently at 16 MHz clock. Wide 32-bit internal M68000 paths feed the CPM without DMA stalls, sustaining steady throughput even on short packets. The 144-LQFP industrial-grade footprint survives telco closet thermal environments when paired with PV variant. Pin-compatible 25 MHz PV25 variant allows headroom for future traffic increase.
Рекомендуется
Industrial Serial Bridge Gateway
The MC68302AG16VC's combination of two UARTs plus one SCC lets it bridge RS-485, RS-232, and HDLC traffic in industrial gateway installations - PLC link aggregation, substation telemetry, and SCADA front-ends. The 16 MHz M68000 core running embedded RTOS like VxWorks provides deterministic multi-protocol handling, while the 144-LQFP package operates across commercial temperature range with adequate margin. The DRAM controller + chip-select logic removes external memory and glue ICs, keeping BOM small. Engineered for sustained industrial use; for AEC-Q100 environments pair with the MC68302-PV industrial variant.
Рекомендуется
Modem Bank / Channelized Aggregator
The MC68302AG16VC aggregates multiple V.90/V.34 modem connections through its two SCCs plus dual UARTs, serving in 4-port external modem banks and legacy dial-up RAS equipment. At 16 MHz, the RISC CPM can sustain simultaneous HDLC framing on each SCC while the CPU handles PPP/TCP and authentication tasks. The 144-LQFP 20x20 mm footprint fits 1U chassis PCBs. Integrated DRAM controller supports up to 4 MB of external DRAM, eliminating a separate memory controller. Trade-off: as V.92/V.34 use cases fade, this is a sustaining application only.
Рекомендуется
POS / ATM Legacy Terminal
The MC68302AG16VC's deterministic real-time behavior and integrated multi-channel comms make it suited for legacy POS terminals and ATM controllers, especially where the firmware base is mature M68000 code. The CPM handles X.25 or SDLC for bank-network links in parallel with UARTs for cash-drawer and printer peripherals. The 144-LQFP 20x20 mm body fits standard ATM logic-board footprints, and the on-chip DRAM controller tolerates a small amount of FRAM or battery-backed SRAM for transaction journals. Note: end-of-life status means new deployments should plan a ColdFire migration path.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC68302AG16VC — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MC68302PV16VC | KMC68302AG16VC | MC68302PV25VC | MC68302AG16VE | MC68302EH16C |
|---|---|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Clock Speed | 16 MHz | 16 MHz | 16 MHz | 25 MHz | 16 MHz | 16 MHz |
| Temperature Grade | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial |
| Core Processor | M68000 | M68000 | M68000 | M68000 | M68000 | M68000 (enhanced SCC) |
| Co-Processor | RISC CPM | RISC CPM | RISC CPM | RISC CPM | RISC CPM | RISC CPM (enhanced) |
| Bus Width | 8/16-bit | 8/16-bit | 8/16-bit | 8/16-bit | 8/16-bit | 8/16-bit |
| Lifecycle Status | End of Life | End of Life | End of Life | End of Life | End of Life | End of Life |
| RoHS Compliant | No (SnPb finish) | No | No | No | No | No |
Ключевые отличия
- Mature 16 MHz commercial-grade M68000 + RISC CPM (против MC68302PV25VC)
- Enhanced SCC controller option (против MC68302EH16C)
- Aftermarket availability through Rochester Electronics (против KMC68302AG16VC)
Заметки по проектированию
The MC68302AG16VC requires a single +5V supply with tight regulation; place a 100 uF bulk capacitor and a 100 nF ceramic bypass cap per power pin pair within 5 mm of the IC body. The on-chip PLL needs a clean analog VCC and VDD pair (pins 8/9 and 143) - feed those from a ferrite-bead-filtered branch. Decoupling budget: roughly 13 VCC pins and 5 VSS pins for the 144-LQFP variant. Estimating ~2 nH of parasitic inductance from a typical 0805 via to inner plane, peak ripple should remain below 50 mV on the supply rails during CPM burst activity.
At 16 MHz, the MC68302AG16VC dissipates an estimated 600 mW during typical CPM-active states - within the 144-LQFP package's rated thermal envelope but still noteworthy. Theta-JA of the LQFP body is approximately 25 C/W in still air; with 100 LFM airflow the figure drops near 15 C/W. For sealed telco-closet housings, derate ambient temperature by 10C or upgrade to the industrial PV variant. Estimated input values: VIN=5.0V, ICC=120 mA, theta_JA=25 C/W -> junction-to-ambient rise 3C above ambient at full load.
Allocate generous escape-room around the 144-LQFP body (20x20 mm, 0.5 mm pitch) on a 4-layer FR4 board with 2 inner solid planes. Escape the bus pins on the shortest 0.10 mm micro-via path; do NOT route any signal trace across DRAM controller pins 121-128 to avoid crosstalk. Add a series 33 ohm damping resistor on AS/DS strobes if RAM depth exceeds 8 MB.
Do NOT attempt to substitute MC68302EH25 (25 MHz) for a 16 MHz code base without verifying the firmware's wait-state assumptions - faster clocks expose bus-access races. Also do NOT connect the RESET (pin 73) through a mechanical switch; it is open-drain and must be pulled to VCC through 1 kohm. Last: the MODCK pin selects the clock source; leaving it floating defaults to internal crystal mode but may cause intermittent boot failures in noisy environments - tie it to VCC or GND explicitly.
Keep crystal traces (XTAL1, XTAL2, EXTAL) under 10 mm and shield with a ground guard ring. Place the BRG1/BRG2 outputs in their own exclusive ground-return path to avoid them injecting 1.6-3.6 MHz spurs into the PLL analog section. For CE-marked telecom designs, leave a keep-out 5 mm radius around the LQFP body to accommodate EMI-shield cans.
Информация о соответствии
MC68302AG16VC ships in tin-lead finish and is not RoHS compliant per Freescale/NXP product family policy. Part is End of Life per NXP product page. Reach and AEC-Q100 status not stated in available data; halogen-free status unknown.