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Renesas HD64570CP16
- Part No.:
- HD64570CP16
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 84-LCC (J-Lead)
- Datasheet:
-
HD64570CP16.pdf
- Description:
- SERIAL I/O CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:185
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Product details
Overview
HD64570CP16 from Hitachi is a 16-bit Serial Communications Adaptor (SCA) IC designed as a peripheral controller for host microprocessors, enabling asynchronous, byte-synchronous, and bit-synchronous serial communication. It integrates two full-duplex multiprotocol serial channels supporting LAPB, LAPD, bisync, and DDCMP, a 32-stage FIFO DMAC, four MPU interface modes, bus arbiter, interrupt controller, and four timers - all operating at up to 12 Mbit/s data transfer rate with 5 V supply.
For engineers reviewing the HD64570CP16 datasheet, HD64570CP16 pinout, HD64570CP16 application, or HD64570CP16 equivalent, this device is selected for high-throughput, protocol-flexible serial interface design in ISDN terminals, frame relay systems, PBX, and embedded network controllers where deterministic DMA-driven I/O and multi-protocol framing are required.
Technical Context
The HD64570CP16 implements dual-channel MSCI modules with independent baud rate generators and ADPLL clock recovery, each configurable for asynchronous (UART-like), byte-synchronous (SDLC/HDLC), or bit-synchronous (frame relay) operation. Its DMAC supports chained-block transfers across four channels with descriptor-based buffering and error-address tracking.
It features a 16-bit parallel bus interface compatible with multiple MPU timing protocols (e.g., Z80, 68000, 8086), programmable wait-state insertion via WAIT pin or register control, and system-level power management including reset, normal, and system stop modes - all coordinated through on-chip interrupt vectoring and priority-controlled interrupt sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus Width | 16-bit parallel interface supporting Z80, 68000, 8086, and custom MPU timing modes |
| Max Data Rate | 12 Mbit/s full-duplex - enables high-speed frame relay or ISDN B-channel handling without CPU bus saturation |
| FIFO Depth | 32-stage transmit/receive FIFO per channel - reduces interrupt frequency and improves real-time response |
| Serial Channels | 2 independent full-duplex MSCI channels - supports simultaneous LAPD (D-channel) and LAPB (B-channel) in ISDN terminal designs |
| DMAC Channels | 4-channel DMA controller with chained-block descriptor support - allows zero-CPU overhead burst transfers between memory and serial buffers |
| Operating Temp | −40°C to +85°C wide temperature range - qualified for industrial and telecom infrastructure environments |
| Supply Voltage | 5 V ±10% - compatible with legacy 5 V logic systems and mixed-voltage backplane interfaces |
Pinout & Package
HD64570CP16 is housed in a 128-pin plastic quad flat package (PQFP) with 0.4 mm lead pitch, compliant with JEDEC MS-026 standard. Pin functions are defined for 16-bit bidirectional data bus (D0–D15), 20-bit address bus (A0–A19), control signals (RD, WR, CS, RESET, WAIT), serial I/O (TxD0/1, RxD0/1, CLK0/1, RTS0/1, CTS0/1), and internal resource interfaces (INT, DMA_REQ, DMA_ACK, TIMER_OUT0–3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D15 | 16-bit bidirectional data bus | Connects directly to host MPU data bus; supports multiplexed or non-multiplexed timing per interface mode |
| A0–A19 | 20-bit address bus | Provides full 1 MB addressing space for register and buffer mapping; A0–A3 select internal SCA registers |
| TxD0/TxD1 | Transmit data outputs (Channel 0/1) | CMOS-level serial output; driven only when corresponding MSCI channel is enabled and transmitting |
| RxD0/RxD1 | Receive data inputs (Channel 0/1) | Accepts TTL/CMOS-level serial input; sampled synchronously with recovered or external clock |
| CLK0/CLK1 | External clock inputs (Channel 0/1) | Provide bit-rate reference for synchronous modes; optional when ADPLL or internal BRG used |
| INT | Interrupt request output | Open-drain active-low signal indicating pending interrupt; supports vectored or modified vectoring |
| DMA_REQ0–3 | DMA request outputs | Per-channel DMA request assertion; triggers bus arbitration and master-mode transfer initiation |
| RESET | Active-low hardware reset input | Asynchronously clears all internal registers and places device in reset mode; releases after stable clock and supply |
Key Features
| Feature | Design Value |
|---|---|
| Dual MSCI with ADPLL | Each channel supports automatic clock recovery for bit-synchronous protocols like frame relay - eliminates need for external clock synthesizers |
| Chained-block DMA | Descriptor-linked memory transfers enable continuous streaming of variable-length frames without CPU intervention |
| Four MPU interface modes | Hardware-selectable timing compatibility with Z80, 68000, 8086, and custom buses - simplifies integration into diverse host architectures |
| Integrated interrupt controller | Three-level interrupt status/enable registers and fixed/modified vectoring reduce software latency and ISR complexity |
| Programmable wait-state generator | WAIT pin assertion or register-controlled wait insertion adapts to slow memory or peripheral access timing |
Applications
| ISDN Terminal Equipment | Frame Relay Access Device |
|---|---|
Use Scenario: ISDN terminal implementing TE1 functionality with simultaneous B-channel (LAPB) and D-channel (LAPD) communication. IC Role / Device Role / Timing Role: HD64570CP16 serves as the primary serial interface controller, managing dual-channel framing, HDLC CRC generation/checking, and time-critical interrupt servicing. Use Value: Enables concurrent full-duplex B- and D-channel operation at 64 kbit/s and 16 kbit/s respectively using a single IC and shared DMA resources. | Use Scenario: Edge router or CSU/DSU performing frame relay encapsulation/deencapsulation over T1/E1 links. IC Role / Device Role / Timing Role: HD64570CP16 acts as the physical layer framer, executing bit-synchronous frame alignment, flag detection, and FECN/BECN handling. Use Value: Supports 2.048 Mbit/s E1 line rates with precise bit timing via ADPLL, reducing jitter-sensitive external clock components. |
| Private Branch Exchange (PBX) | Industrial Protocol Gateway |
Use Scenario: Digital PBX system requiring multiple serial links for trunk signaling (Q.921), maintenance consoles, and modem banks. IC Role / Device Role / Timing Role: HD64570CP16 provides scalable, register-configurable serial ports with independent protocol stacks per channel. Use Value: Eliminates need for discrete UARTs and protocol ASICs - one HD64570CP16 replaces up to eight legacy serial controllers in compact backplane designs. | Use Scenario: Gateway bridging legacy fieldbus (e.g., SDLC-based SCADA) to Ethernet or CAN networks in factory automation. IC Role / Device Role / Timing Role: HD64570CP16 handles low-level SDLC framing, CRC validation, and deterministic receive buffering before protocol translation. Use Value: Guarantees sub-100 µs interrupt latency and 32-byte FIFO depth to prevent frame loss during bursty industrial traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial communications controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64570F16 | Same architecture and pinout; differs only in ceramic QFP package (vs. plastic PQFP of HD64570CP16) and extended temperature range (−55°C to +125°C) | Targeted for military/aerospace use where hermetic sealing and wider thermal tolerance are mandatory | Select HD64570F16 only if environmental qualification exceeds commercial/industrial requirements |
| Z85230 | Single-channel SCC with similar MSCI functionality but no integrated DMAC or timer subsystem; requires external DMA controller | Suitable for cost-sensitive, lower-bandwidth applications where dual-channel or chained DMA is unnecessary | Choose Z85230 when system design prioritizes component count reduction over throughput scalability |
Compared with HD64570F16, HD64570CP16 offers identical functionality in a lower-cost plastic package optimized for industrial telecom equipment; compared with Z85230, HD64570CP16 delivers higher integration, dual-channel concurrency, and autonomous DMA - critical for frame relay and ISDN terminal designs demanding minimal host CPU load.
Availability
HD64570CP16 is available at Aetrix Electronics and suitable for ISDN terminal equipment, frame relay access devices, and private branch exchange (PBX) systems requiring stable component supply, long-term lifecycle support, and verified interoperability with legacy 5 V MPU buses.
Supply support for HD64570CP16 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
Hitachi Ltd. was a Japanese multinational conglomerate active in semiconductors until its semiconductor division was spun off as Renesas Electronics in 2010. Hitachi developed high-integration communications peripherals for telecom and industrial markets during the 1990s.
The HD64570 series was designed as a programmable serial communications adaptor targeting ISDN, frame relay, and digital PBX applications - emphasizing protocol flexibility, deterministic DMA, and multi-MPU bus compatibility in single-chip form.
FAQ
What communication protocols does the HD64570CP16 support natively?
The HD64570CP16 natively supports asynchronous (UART-style), byte-synchronous (bisync, SDLC/HDLC), and bit-synchronous (frame relay, DDCMP) protocols via its dual MSCI channels. Protocol selection is register-configured per channel, with built-in CRC generation/checking, flag detection, and address recognition - no external firmware or glue logic required for LAPB, LAPD, or bisync framing.
Does the HD64570CP16 include an integrated DMA controller?
Yes, the HD64570CP16 integrates a 4-channel direct memory access controller (DMAC) with 32-stage FIFO buffering, chained-block descriptor support, and error-address tracking. This DMAC enables zero-CPU-overhead transfers between host memory and serial buffers - essential for sustaining 12 Mbit/s full-duplex throughput while freeing the host MPU for protocol processing.
What is the operating temperature range specified for the HD64570CP16?
The HD64570CP16 is rated for operation from −40°C to +85°C, qualifying it for industrial and telecommunications infrastructure applications. This wide temperature range is explicitly documented in the ADE-602-035B revision 3.0 user's manual under "Changes in the Specifications" and confirmed in Section 10 (Electrical Characteristics).
How many serial communication channels does the HD64570CP16 provide?
The HD64570CP16 provides two independent full-duplex serial channels (MSCI Channel 0 and Channel 1), each with dedicated transmit/receive pins, clock inputs, control signals, and register sets. Both channels operate concurrently and can be configured for different protocols - for example, LAPD on Channel 0 and LAPB on Channel 1 in ISDN terminal designs.
Is the HD64570CP16 compatible with common microprocessor buses?
Yes, the HD64570CP16 supports four selectable MPU interface modes - Z80, 68000, 8086, and custom - via hardware pins and internal configuration registers. This allows seamless integration with diverse host processors without requiring external bus translators or timing adapters, as confirmed in Sections 3.4 and 1.2 of the HD64570 user's manual.
HD64570CP16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 84-LCC (J-Lead)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- ISDN
- Interface:
- Serial
- Voltage - Supply:
- 4.75V ~ 5.25V
- Supplier Device Package:
- 84-PLCC
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
HD64570CP16 FAQ
1.How can I place an order for HD64570CP16 through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64570CP16 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 HD64570CP16 reliable?
The price and inventory of HD64570CP16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64570CP16 is usually 5 days.
3.What payment methods are accepted for HD64570CP16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64570CP16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64570CP16?
HD64570CP16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64570CP16 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 HD64570CP16?
For technical support, including HD64570CP16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64570CP16 requirements.
6.How does Aetrix verify that HD64570CP16 is sourced from the original manufacturer or authorized distributors?
All HD64570CP16 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 HD64570CP16 meets industry standards.
7.What is the process for return or replacement of HD64570CP16?
All HD64570CP16 units undergo pre-shipment inspection (PSI). If there is an issue with HD64570CP16, 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 HD64570CP16 part is unused and in its original packaging.
Return procedure for HD64570CP16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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