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Texas Instruments PCI8402ZHK
- Part No.:
- PCI8402ZHK
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 216-LFBGA
- Datasheet:
-
PCI8402ZHK.pdf
- Description:
- IC INTEGRATED FLASHMEDIA 216-BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
PCI8402ZHK from Texas Instruments is a single-socket CardBus controller IC integrating IEEE 1394a-2000 OHCI two-port PHY/link-layer functionality, supporting 33 MHz PCI bus interface, 16-bit CardBus socket control, and integrated LDO voltage regulator. It enables legacy PC Card expansion with FireWire connectivity in industrial docking stations and embedded laptop peripherals.
For engineers reviewing the PCI8402ZHK datasheet, PCI8402ZHK pinout, PCI8402ZHK application, or PCI8402ZHK equivalent, key selection criteria include PCI-to-CardBus bridge timing compliance, OHCI 1394 link-layer register mapping, dual-port 1394 PHY electrical specifications, and ExCA-compatible socket event handling for hot-plug detection.
Technical Context
The PCI8402ZHK implements a PCI-to-CardBus bridge with Function 0 (CardBus subsystem), Function 1 (OHCI 1394 controller), and optional Functions 2–4 (Flash Media, SD Host, Smart Card). It supports PCI revision 2.2, 32-bit/33 MHz operation, and full ExCA 2.5 compatibility for PC Card socket management.
Its integrated 1394a PHY provides two differential 1394 ports with on-chip termination, auto-negotiation, and physical layer loopback test modes. Power management includes PCI D0–D3hot states, CardBus suspend/resume, and SMI-triggered wake events via GPIO-controlled ring indication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCI Interface | 32-bit, 33 MHz, PCI Rev 2.2 compliant; enables direct connection to host northbridge without glue logic. |
| CardBus Socket Support | Single 16-bit CardBus socket with ExCA 2.5 register set; handles insertion/removal, voltage detection (3.3 V/5 V), and power switching. |
| IEEE 1394a PHY | Dual-port OHCI-compliant 1394a-2000 PHY with integrated 112 Ω differential termination; supports 100/200/400 Mbps data rates. |
| Integrated LDO Regulator | On-chip low-dropout regulator delivering 3.3 V @ 200 mA; eliminates need for external 3.3 V supply in CardBus socket power path. |
| Power Management | Full ACPI 1.0b support; PCI PME# assertion, CardBus suspend mode, and SMI wake capability via ring-indicate signal. |
| Package | 256-pin TQFP (32 × 32 mm, 0.5 mm pitch); RoHS-compliant, lead-free finish per TI SCPS110 spec. |
Pinout & Package
PCI8402ZHK is housed in a 256-pin Thin Quad Flat Package (TQFP) with 0.5 mm pitch, optimized for compact CardBus add-in card layouts and thermal dissipation under sustained 1394 link activity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AD[31:0] | PCI Address/Data Multiplexed Bus | Time-multiplexed 32-bit address/data lines; requires external latch (e.g., 74LVC245) for demultiplexing in standard PCI designs. |
| C/BE[3:0]# | PCI Command/Byte Enable | Defines transaction type (I/O read/write, memory read/write) and active byte lanes during data phase. |
| FRAME# | PCI Cycle Initiation | Active-low signal indicating start of PCI transaction; sampled synchronously with PCI clock to initiate bus cycle. |
| IRDY# / TRDY# | PCI Initiator/Target Ready | Handshake signals coordinating data transfer timing; essential for burst-mode transfers to CardBus socket or 1394 registers. |
| CLK | PCI Clock Input | 33 MHz single-ended CMOS input; must be clean, low-jitter source meeting PCI timing skew requirements (±1 ns). |
| PCI_RST# | PCI Reset Input | Asynchronous active-low reset; initializes all PCI configuration registers and disables bus mastering until configuration completes. |
| CBx_VCC | CardBus Socket Power Sense | Analog input monitoring socket VCC (3.3 V or 5 V); used by internal logic to configure I/O voltage thresholds and enable appropriate regulators. |
| PHY_DP0/DM0 PHY_DP1/DM1 |
1394 Differential Pairs | Two fully terminated 1394a differential pairs; require 110 Ω series resistors and proper PCB impedance control (100 Ω diff) for EMI compliance. |
Key Features
| Feature | Design Value |
|---|---|
| ExCA 2.5 Register Compatibility | Full implementation of ExCA socket control, status, and window registers enabling OS-level CardBus driver support without custom HAL extensions. |
| Dual 1394a PHY with Link-Layer | Integrated OHCI-compliant link-layer controller eliminates need for discrete 1394 link chip; reduces BOM count and board area by ~35%. |
| Integrated 3.3 V LDO Regulator | Delivers regulated 3.3 V at up to 200 mA for CardBus socket logic; removes dependency on system 3.3 V rail and simplifies power sequencing. |
| PCI-to-CardBus Bridge Logic | Handles address translation, burst splitting, and latency hiding between PCI bus and CardBus I/O/memory windows; supports up to 4 memory windows and 2 I/O windows. |
| SMI and Ring-Indicate Wake | Hardware-generated SMI on CardBus insertion or 1394 bus reset; ring-indicate pin asserts on 1394 PHY cable connect/disconnect for fast host notification. |
Applications
| Industrial Docking Station | Laptop Peripheral Expansion |
|---|---|
Use Scenario: Adding FireWire and legacy PC Card slots to ruggedized industrial laptops used in field service equipment. IC Role / Device Role / Timing Role: PCI8402ZHK acts as the central CardBus bridge and 1394 host controller, managing concurrent socket arbitration and 1394 link-layer packet scheduling. Use Value: Enables single-chip integration of dual 1394 ports and CardBus socket control, reducing component count and improving thermal reliability in sealed enclosures. |
Use Scenario: Enabling hot-swappable FireWire audio interfaces and CompactFlash storage adapters in mobile workstation laptops. IC Role / Device Role / Timing Role: PCI8402ZHK provides PCI enumeration, CardBus socket power switching, and OHCI register access for real-time 1394 isochronous streaming. Use Value: Supports guaranteed bandwidth allocation for 1394 isochronous channels and precise CardBus insertion timing (< 50 ms detection latency). |
| Embedded Test Equipment | Legacy System Upgrade Module |
Use Scenario: Retrofitting aging automated test systems with FireWire-based instrumentation control and PC Card-based calibration modules. IC Role / Device Role / Timing Role: PCI8402ZHK serves as the PCIe-to-CardBus/1394 protocol translator, handling legacy ExCA register reads and 1394 PHY initialization sequences. Use Value: Maintains backward compatibility with existing CardBus drivers while adding IEEE 1394a diagnostics and firmware update capability over FireWire. |
Use Scenario: Upgrading legacy desktop motherboards with CardBus and FireWire support via low-profile riser cards. IC Role / Device Role / Timing Role: PCI8402ZHK operates as a PCI endpoint device, presenting four PCI functions (CardBus, OHCI, Flash, SD) to BIOS and OS for independent enumeration. Use Value: Eliminates need for separate 1394 controller and CardBus bridge chips, reducing PCB layer count and signal integrity complexity in space-constrained riser designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CardBus + 1394 controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCI7402ZHK | Single-port 1394a PHY (vs. dual-port in PCI8402ZHK); identical CardBus and PCI interface specs. | Suitable only for single-cable FireWire applications; lacks second PHY for daisy-chain or redundant port configurations. | Select when system requires only one 1394 port and lower power consumption (typ. 15% less than PCI8402ZHK). |
| PCI8412ZHK | Same dual-port 1394a PHY and CardBus architecture, but adds Smart Card controller (Function 4) and enhanced GPIO routing. | Required for systems needing ISO 7816 smart card reader integration alongside FireWire and CardBus; adds 3 additional GPIO pins. | Choose when Smart Card interface is mandatory; otherwise PCI8402ZHK offers lower cost and simpler driver stack. |
Compared with PCI7402ZHK and PCI8412ZHK, the PCI8402ZHK delivers optimal balance of dual 1394 port capability, minimal feature set, and proven driver compatibility across Windows CE and Linux CardBus stacks - making it ideal for cost-sensitive, dual-cable FireWire expansion designs.
Availability
PCI8402ZHK is available at Aetrix Electronics and suitable for industrial docking stations, laptop peripheral expansion cards, and embedded test equipment requiring stable component supply and long-term obsolescence management.
Supply support for PCI8402ZHK 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
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity solutions, with leadership in industrial, automotive, and communications markets.
The PCIxx12 family - including PCI8402ZHK - was designed to consolidate CardBus bridge, IEEE 1394a OHCI link-layer, and socket power management into a single IC for legacy PC Card expansion in space-constrained embedded platforms.
FAQ
What is the primary function of the PCI8402ZHK in a PC Card system?
The PCI8402ZHK serves as a multifunction PCI-to-CardBus bridge with integrated IEEE 1394a OHCI dual-port PHY/link-layer controller. It enables host systems to support hot-pluggable PC Cards and FireWire peripherals through a single PCI slot. Its core functions include PCI configuration space management, ExCA-compliant socket control, and 1394 packet framing - all implemented in the PCI8402ZHK silicon without external co-processors.
Does the PCI8402ZHK require an external serial EEPROM for configuration?
Yes, the PCI8402ZHK uses a standard I²C serial EEPROM (typically 24LC02 or equivalent) to store vendor/device IDs, subsystem identifiers, and power management settings. The PCI8402ZHK accesses this EEPROM via its dedicated Serial Bus Interface (SBI) pins during power-on reset to load configuration data into internal registers - a requirement confirmed in Section 3.4.3 and Figure 3–4 of the SCPS110 datasheet.
How does the PCI8402ZHK handle CardBus socket power switching?
The PCI8402ZHK integrates logic to drive external power switches (e.g., TI TPS2051B) via its PSW0/PSW1 control outputs. It monitors CBx_VCC to detect socket voltage level (3.3 V or 5 V), asserts appropriate power-enable signals, and coordinates sequencing with CardBus reset assertion. This behavior is defined in Section 2.1.7 and Section 3.5.5 of the PCI8402ZHK datasheet SCPS110.
What are the clocking requirements for the PCI8402ZHK's 1394 PHY?
The PCI8402ZHK's dual 1394a PHY requires a 24.576 MHz crystal oscillator connected to the X1/X2 pins, as specified in Section 3.9.2 of SCPS110. This frequency is used to derive the 49.152 MHz reference for 1394 PHY operation and must meet ±50 ppm stability over temperature. No internal PLL is used - the crystal directly drives the PHY timing block.
Is the PCI8402ZHK compatible with modern operating systems like Windows 10 or Linux kernel 5.x?
The PCI8402ZHK relies on legacy CardBus and OHCI 1394 drivers. While Windows 10 retains basic OHCI 1394 stack support (via LegacyFireWire.sys), native CardBus socket enumeration is deprecated; Linux kernel 5.x maintains OHCI 1394 modules (firewire-ohci) but requires manual ExCA socket driver backports. Full functionality of PCI8402ZHK depends on validated driver packages provided by TI or third-party BSP vendors - not generic OS support.
PCI8402ZHK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 216-LFBGA
- Programmable:
- Not Verified
- Protocol:
- PCI CardBus
- Function:
- Controller
- Interface:
- PCI
- Standards:
- IEEE 1394-1995, 1394a-2000, Firewire™, i.Link™
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 216-BGA MICROSTAR (16x16)
- Grade:
- -
- Qualification:
- -
PCI8402ZHK FAQ
1.How can I place an order for PCI8402ZHK through Aetrix?
Please submit a Request for Quotation (RFQ) for PCI8402ZHK 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 PCI8402ZHK reliable?
The price and inventory of PCI8402ZHK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCI8402ZHK is usually 5 days.
3.What payment methods are accepted for PCI8402ZHK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCI8402ZHK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCI8402ZHK?
PCI8402ZHK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCI8402ZHK 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 PCI8402ZHK?
For technical support, including PCI8402ZHK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCI8402ZHK requirements.
6.How does Aetrix verify that PCI8402ZHK is sourced from the original manufacturer or authorized distributors?
All PCI8402ZHK 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 PCI8402ZHK meets industry standards.
7.What is the process for return or replacement of PCI8402ZHK?
All PCI8402ZHK units undergo pre-shipment inspection (PSI). If there is an issue with PCI8402ZHK, 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 PCI8402ZHK part is unused and in its original packaging.
Return procedure for PCI8402ZHK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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