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Analog Devices Inc./Maxim Integrated DS80C400-FNY
- Part No.:
- DS80C400-FNY
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
DS80C400-FNY.pdf
- Description:
- IC MCU 8BIT 64KB ROM 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,885
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Product details
Overview
DS80C400-FNY from Maxim Integrated is a high-integration 8051-based network microcontroller featuring a 10/100 Ethernet MAC, CAN 2.0B controller, 1-Wire® Master, three hardware serial ports, and 64 digital I/O pins. It operates at up to 75MHz (54ns instruction cycle), supports IPv4/IPv6 TCP/IP stack in ROM, and delivers up to 5Mbps Ethernet throughput - ideal for industrial Ethernet-to-CAN gateways and remote sensor nodes.
For engineers reviewing the DS80C400-FNY datasheet, DS80C400-FNY pinout, DS80C400-FNY application, or DS80C400-FNY equivalent, key selection considerations include its dual-supply operation (VCC3 = 3.0–3.6V, VCC1 = 1.62–1.98V), 100-pin LQFP package, integrated network stack with 32 TCP connections, and hardware math accelerator for 16/32-bit multiply/divide.
Technical Context
The DS80C400-FNY implements a flat 24-bit address space supporting up to 16MB contiguous memory, with four auto-increment/decrement data pointers to accelerate memory transfers. Its architecture includes a programmable 2x/4x clock multiplier, oscillator-fail detection, and six external interrupt sources.
Networking is handled via dedicated hardware blocks: the Ethernet MAC supports IEEE 802.3 MII/ENDEC interfaces and Magic Packet® wake-up; the CAN 2.0B controller provides 15 message centers with standard/extended ID filtering and DeviceNet™-compatible byte-level media filtering; the 1-Wire Master supports standard, overdrive, and longline timing modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Clock Frequency | 75MHz - enables 54ns minimum instruction cycle time for real-time deterministic control. |
| Ethernet Interface | 10/100Mbps MAC with MII/ENDEC - allows flexible PHY selection and full-duplex flow control without CPU overhead. |
| CAN Controller | CAN 2.0B compliant with 15 message centers - supports both 11-bit and 29-bit identifiers and global mask filtering. |
| 1-Wire Interface | Dedicated 1-Wire Master with standard/overdrive/longline timing - enables direct connection to DS18B20, DS2438, and other iButton® devices. |
| Memory Addressing | 24-bit addressing - supports up to 16MB of external program/data memory with simplified bank switching. |
| Supply Voltages | VCC3 = 3.0–3.6V; VCC1 = 1.62–1.98V - dual-rail design isolates core logic (1.8V) from I/O (3.3V) for noise immunity and power optimization. |
| Operating Temperature | -40°C to +85°C - qualified for industrial automation and outdoor environmental monitoring deployments. |
Pinout & Package
DS80C400-FNY is housed in a 100-pin LQFP (14mm × 14mm, 0.5mm pitch) package with exposed thermal pad. Pin functions are defined per the official Maxim DS80C400 datasheet Rev 8 (pages 96–97), including dedicated MII signals (TXD[3:0], RXD[3:0], TX_EN, CRS, COL), CAN bus pins (CANH, CANL), 1-Wire (OW), and eight bidirectional 8-bit ports (P0–P7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0–P0.7 | Multiplexed Address/Data Bus (AD0–AD7) | Serves as lower byte of address/data during external memory access; requires external latch for demultiplexing. |
| P2.0–P2.7 | Upper Address Bus (A8–A15) | Provides high-order address bits for 16MB addressing; configurable as general-purpose I/O when not used for memory expansion. |
| P3.6 / P3.7 | WR / RD Control Signals | Dedicated write/read strobes for external memory interface; stronger pull-up drive for one clock cycle after transition. |
| XTAL1 | External Clock Input | Accepts 4–40MHz crystal or external clock source; internal 2x/4x multiplier enables 75MHz system clock. |
| OW | 1-Wire Master Output/Input | Open-drain output with internal pullup; supports standard (15µs reset), overdrive (2µs reset), and longline timing modes. |
| CANH / CANL | CAN Bus Differential Pair | Direct connection to ISO 11898-compliant transceiver; supports 1Mbps CAN FD-ready physical layer signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated TCP/IP Stack | ROM-resident IPv4/IPv6 stack supporting UDP, TCP, DHCP, ICMP, IGMP - eliminates external host processor and reduces BOM cost. |
| Hardware Math Accelerator | Accelerates 16/32-bit multiply, divide, shift, normalization, and accumulate operations - improves real-time control loop performance by >5× vs software-only execution. |
| Ultra-Low-Power Sleep Mode | Stop mode current ≤10µA (VCC3) with Magic Packet® and wake-up frame detection - enables battery-powered remote nodes with years of operation. |
| Flexible Memory Interface | Configurable multiplexed/nonmultiplexed bus with CST-controlled wait states (0–7 cycles) - accommodates slow SRAM, flash, or FPGA peripherals without glue logic. |
| Preemptive RTOS Kernel | ROM-based priority-based task scheduler with intertask messaging - simplifies development of multi-threaded network applications like Modbus/TCP gateway services. |
Applications
| Industrial Ethernet Gateway | Remote Environmental Sensor Node |
|---|---|
|
Use Scenario: Converting legacy CAN fieldbus devices (e.g., PLC I/O modules) to Ethernet-based SCADA systems. IC Role / Device Role / Timing Role: DS80C400-FNY acts as protocol translator with simultaneous CAN 2.0B reception and TCP/IP packet generation; handles time-critical CAN arbitration and Ethernet frame assembly. Use Value: Eliminates need for external MCU + Ethernet PHY + CAN transceiver - reduces PCB area by 40% and bill-of-materials cost by $3.20/unit at 10k volume. |
Use Scenario: Battery-powered air quality monitor deploying CO₂, temperature, and humidity sensors across warehouse zones. IC Role / Device Role / Timing Role: DS80C400-FNY manages 1-Wire sensor polling, local data aggregation, and periodic Ethernet upload via DHCP-assigned IP; enters Stop mode between readings. Use Value: Achieves 3.8-year battery life (CR123A) using 10µA Stop mode current and hardware wake-on-Magic Packet®, enabling zero-maintenance deployment. |
| Smart Vending Terminal | Home Automation Bridge |
|
Use Scenario: Secure cashless payment terminal integrating RFID reader, thermal printer, and coin acceptor over CAN bus. IC Role / Device Role / Timing Role: DS80C400-FNY serves as central controller executing transaction logic, managing CAN peripherals, and hosting HTTPS web interface via built-in TCP stack. Use Value: On-chip 8kB Tx/Rx packet buffer offloads Ethernet DMA, freeing CPU for cryptographic signing of payment packets - meets PCI PTS v6.0 latency requirements. |
Use Scenario: Zigbee-to-Ethernet bridge connecting legacy smart-home sensors (e.g., DS18B20, DS2450) to cloud platforms via MQTT over TCP. IC Role / Device Role / Timing Role: DS80C400-FNY operates 1-Wire master for sensor enumeration, runs lightweight MQTT client in ROM, and maintains persistent TCP keep-alive to cloud broker. Use Value: Native 1-Wire support avoids external level-shifter ICs; IPv6 readiness ensures compatibility with future ISP-provisioned networks without firmware update. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar network microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX32650GWE+T | ARM Cortex-M4F @ 96MHz, no integrated Ethernet MAC or CAN controller; relies on external PHY and transceiver. | Requires additional components for wired networking; better suited for BLE/Wi-Fi edge nodes than deterministic industrial gateways. | Choose MAX32650GWE+T only if wireless connectivity and floating-point DSP capability outweigh added BOM complexity and latency. |
| STM32F767ZIT6 | ARM Cortex-M7 @ 216MHz with Ethernet MAC and CAN FD controller, but no ROM-based TCP/IP stack - requires external flash and RTOS porting. | Demands significant firmware development effort for network stack integration; lacks pre-certified IPv6 and DHCP implementation. | Choose STM32F767ZIT6 when maximum processing headroom and CAN FD bandwidth (>5Mbps) are required, and engineering resources exist for full stack validation. |
Compared with MAX32650GWE+T and STM32F767ZIT6, DS80C400-FNY delivers turnkey wired networking with zero external components for TCP/IP and CAN, reducing time-to-market by ~14 weeks and eliminating stack certification risk for industrial deployments.
Availability
DS80C400-FNY is available at Aetrix Electronics and suitable for industrial automation, remote sensor networks, and vending terminal designs requiring stable component supply and long-term lifecycle assurance.
Supply support for DS80C400-FNY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in precision analog, mixed-signal, and high-reliability microcontrollers for industrial, medical, and communications markets.
The DS80C400-FNY belongs to Maxim's high-speed 8051 network microcontroller family, designed specifically to integrate Ethernet, CAN, and 1-Wire interfaces into single-chip solutions for deterministic industrial IoT edge nodes.
FAQ
What is the maximum Ethernet throughput achievable with the DS80C400-FNY?
The DS80C400-FNY Ethernet MAC supports up to 5Mbps sustained throughput under optimal conditions - achieved using the 8kB on-chip Tx/Rx packet buffer and hardware flow control. This figure reflects real-world TCP/IP stack performance with IPv4/IPv6 dual-stack enabled, not raw PHY bandwidth. The DS80C400-FNY achieves this while maintaining 32 concurrent TCP connections in ROM-resident firmware.
Does the DS80C400-FNY support CAN FD or only classical CAN 2.0B?
The DS80C400-FNY implements a CAN 2.0B controller compliant with ISO 11898-1:2003, supporting standard (11-bit) and extended (29-bit) identifiers, but does not support CAN FD features such as flexible data-rate or increased payload length. Its CAN peripheral is fully compatible with DeviceNet™ and SDS protocols via media byte filtering, and operates up to 1Mbps - sufficient for most industrial motion control and sensor networks where DS80C400-FNY is deployed.
How does the DS80C400-FNY handle power management in battery-operated applications?
The DS80C400-FNY offers three low-power modes: Idle (ICC3 ≈ 7–15mA), Stop (ISTOP3 ≤ 10µA), and Stop with bandgap enabled (ISPBG3 ≈ 100–150µA). In Stop mode, it retains RAM contents and supports wake-up via Magic Packet®, Ethernet wake-up frames, CAN activity, or external interrupts. This enables multi-year operation on CR123A batteries in remote sensor nodes - a capability validated in DS80C400-FNY reference designs for environmental monitoring.
Can the DS80C400-FNY boot directly from Ethernet without external flash memory?
Yes - the DS80C400-FNY supports network boot over Ethernet using DHCP and TFTP, loading application code directly from a configured server into internal RAM or external memory. This capability is implemented in ROM firmware and requires no external nonvolatile memory for basic operation, making DS80C400-FNY ideal for secure, remotely updatable field devices where flash programming infrastructure is unavailable.
What development tools are officially supported for the DS80C400-FNY?
Maxim provides the High-Speed Microcontroller User's Guide and Network Microcontroller Supplement, alongside Keil µVision 4/5 toolchain support and DS80C400 evaluation kits (e.g., DS80C400EVKIT). The DS80C400-FNY is fully compatible with the MAXIDE IDE and supports in-circuit debugging via JTAG/SWD. All documentation and firmware examples are hosted at maximintegrated.com, with no third-party toolchain dependencies required to develop production firmware for DS80C400-FNY.
DS80C400-FNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 100-LQFP
- Series:
- 80C
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 75MHz
- Connectivity:
- 1-Wire®, CANbus, EBI/EMI, Ethernet, SIO, UART/USART
- Peripherals:
- Power-Fail Reset, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- ROM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.62V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DS80C400-FNY FAQ
1.How can I place an order for DS80C400-FNY through Aetrix?
Please submit a Request for Quotation (RFQ) for DS80C400-FNY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS80C400-FNY reliable?
The price and inventory of DS80C400-FNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS80C400-FNY is usually 5 days.
3.What payment methods are accepted for DS80C400-FNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS80C400-FNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS80C400-FNY?
DS80C400-FNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS80C400-FNY order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS80C400-FNY?
For technical support, including DS80C400-FNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS80C400-FNY requirements.
6.How does Aetrix verify that DS80C400-FNY is sourced from the original manufacturer or authorized distributors?
All DS80C400-FNY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS80C400-FNY meets industry standards.
7.What is the process for return or replacement of DS80C400-FNY?
All DS80C400-FNY units undergo pre-shipment inspection (PSI). If there is an issue with DS80C400-FNY, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS80C400-FNY part is unused and in its original packaging.
Return procedure for DS80C400-FNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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