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Texas Instruments SN74AVC6T622ZXYR
- Part No.:
- SN74AVC6T622ZXYR
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 20-UFBGA
- Datasheet:
-
SN74AVC6T622ZXYR.pdf
- Description:
- IC TRANSCEIVER 20BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,471
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Product details
Overview
SN74AVC6T622ZXYR from Texas Instruments is a 6-bit dual-supply voltage-level transceiver designed for AC'97 audio codec interfacing between 1.8 V controllers and 3.3 V codec links. It supports independent A-port (VCCA) and B-port (VCCB) supplies from 1.2 V to 3.6 V, delivers 95 MHz maximum data rate, features three independent direction controls (DIR1, DIR2, DIR(345)), and maintains high-impedance outputs when either supply is off.
For engineers reviewing the SN74AVC6T622ZXYR datasheet, SN74AVC6T622ZXYR pinout, SN74AVC6T622ZXYR application, or SN74AVC6T622ZXYR equivalent, key selection criteria include dual-voltage rail configuration, AC'97 timing compliance, directional control granularity per signal group, I/O leakage under power-off conditions, and ZXY 20-ball UFBGA package compatibility with space-constrained PC audio subsystems.
Technical Context
The SN74AVC6T622ZXYR implements three independent bidirectional data paths: DIR1 controls A1↔B1 (GPIO), DIR2 controls A2↔B2 (SYNC), and DIR(345) controls A3/A4/A5 ↔ B3/B4/B5 (BIT_CLK/RESET/SDATA_Out). Each path operates with input thresholds tracking its respective supply (VCCA for A-port, VCCB for B-port), enabling precise level translation without external biasing.
It complies fully with AC'97 electrical interface specifications-including timing, voltage levels, and signal integrity-while supporting dynamic supply sequencing: when VCCA = 0 V or VCCB = 0 V, all I/Os enter high-impedance state to prevent back-driving and reduce system standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCCA and VCCB each support 1.2 V to 3.6 V independently - enables mixed-voltage system integration without level-shifting resistors. |
| Max Data Rate | 95 MHz - meets AC'97 synchronous serial timing requirements for SYNC, BIT_CLK, and SDATA signals. |
| Direction Control | Three separate DIR inputs (DIR1, DIR2, DIR(345)) - allows independent bidirectional flow per functional group (GPIO, clock/control, data). |
| Power-Off Isolation | Outputs go Hi-Z if VCCA = 0 V or VCCB = 0 V - prevents current leakage and ensures safe partial-power-down operation. |
| I/O Leakage | ±5 µA max at 0 V supply - guarantees minimal quiescent current during sleep modes in portable audio systems. |
| ESD Protection | 7000-V HBM, 200-V MM, 1500-V CDM - exceeds JEDEC standards for robustness in consumer PC motherboard environments. |
Pinout & Package
The SN74AVC6T622ZXYR uses a 20-ball, 0.5-mm pitch, 3 mm × 2.5 mm UFBGA package (ZXY) with exposed thermal pad. Ball assignments follow JEDEC MO-220 standard; exposed pad must be connected to GND or left electrically open per design requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | GPIO I/O | Bidirectional general-purpose signal controlled by DIR1; referenced to VCCA. |
| A2 | SYNC Input | AC'97 controller SYNC signal; direction controlled by DIR2. |
| A3–A5 | BIT_CLK/RESET/SDATA_Out Inputs | Three control/data lines from controller; collectively direction-controlled by DIR(345). |
| A6 | NC | No-connect ball; must remain unconnected per datasheet. |
| VCCA | Port-A Supply | Powers A-port I/Os and DIR inputs; sets A-port input thresholds. |
| GND | Ground | Two dedicated ground balls (B3, C3); required for noise immunity and return path. |
| DIR1, DIR2, DIR(345) | Direction Controls | Active-high logic inputs referenced to VCCA; determine data flow direction per group. |
| B1–B6 | Secondary Codec Signals | Correspond to SYNC, SDATA_In, RESET, BIT_CLK_In, SDATA_Out, and GPIO outputs to AC'97 codec. |
| VCCB | Port-B Supply | Powers B-port I/Os; sets B-port input thresholds and output drive strength. |
Key Features
| Feature | Design Value |
|---|---|
| Independent dual-supply operation | VCCA and VCCB configurable from 1.2 V to 3.6 V - eliminates need for external voltage translators in mixed-voltage audio subsystems. |
| AC'97 electrical compliance | Fully conforms to AC'97 timing, voltage swing, and signal integrity specs - ensures plug-and-play interoperability with legacy and modern codecs. |
| Per-group directional control | Three DIR inputs isolate control of GPIO, SYNC, and multi-signal (BIT_CLK/RESET/SDATA) paths - enables flexible routing and protocol-aware power gating. |
| Zero-current power-off mode | All outputs enter high-impedance state when either VCCA or VCCB is 0 V - prevents back-powering and simplifies system-level power sequencing. |
| Low dynamic power consumption | Typical power dissipation capacitance: CpdA = 2.9 pF (A→B), CpdB = 5.9 pF (B→A) at 3.3 V - reduces switching noise in sensitive analog audio sections. |
Applications
| Personal Computer Audio Subsystem | Embedded AC'97 Modem Interface |
|---|---|
Use Scenario: Interfacing a 1.8 V AC'97 controller on a laptop motherboard with a 3.3 V analog audio codec. IC Role / Device Role / Timing Role: Voltage-level transceiver ensuring AC'97-compliant signal translation for SYNC, BIT_CLK, RESET, and SDATA channels. Use Value: Eliminates discrete resistor-based level shifters while maintaining full AC'97 timing margins and reducing PCB area by >40%. | Use Scenario: Connecting an embedded x86 processor's 1.8 V AC'97 controller to a 3.3 V modem codec in industrial gateway hardware. IC Role / Device Role / Timing Role: Bidirectional level translator with independent DIR control for GPIO and clock/data groups to support modem initialization sequences. Use Value: Enables reliable modem handshake and audio pass-through without violating AC'97 setup/hold times across voltage domains. |
| Legacy Desktop Motherboard Upgrade | Low-Power Mobile Audio Hub |
Use Scenario: Retrofitting older 3.3 V-only motherboards with newer 1.8 V AC'97 controllers for improved CPU power efficiency. IC Role / Device Role / Timing Role: Bridge device preserving AC'97 electrical interface integrity while adapting to lower controller supply voltage. Use Value: Maintains backward compatibility with existing codec firmware and BIOS drivers without requiring board redesign. | Use Scenario: Audio routing in compact media players where space and standby current are critical constraints. IC Role / Device Role / Timing Role: Low-leakage (±5 µA) transceiver enabling full power-down of audio subsystem while retaining GPIO wake-up capability. Use Value: Reduces system standby current by >120 µA compared to discrete MOSFET-based solutions, extending battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-level transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC8T245RHLR | 8-bit, single-direction-control, no DIR(345) grouping - requires external logic for per-signal direction management. | Best suited for generic parallel bus translation, not AC'97-specific grouped control. | Select only if application requires uniform direction control across all 8 bits and does not rely on AC'97 timing or signal grouping. |
| TXS0108EPRJR | Auto-direction sensing, no DIR pins - relies on data flow detection rather than explicit GPIO control. | Suitable for I²C/SPI but lacks AC'97 timing validation and deterministic latency for synchronous audio clocks. | Choose only for non-timing-critical digital interfaces; avoid for AC'97 due to unverified skew and jitter performance. |
Compared with SN74AVC8T245RHLR and TXS0108EPRJR, the SN74AVC6T622ZXYR provides AC'97-specific signal grouping, guaranteed 95 MHz timing compliance, and explicit DIR control per functional block-making it the only option validated for production audio codec bridging in PC-class systems.
Availability
SN74AVC6T622ZXYR is available at Aetrix Electronics and suitable for personal computer audio subsystems, embedded modem interfaces, and legacy motherboard upgrades requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74AVC6T622ZXYR 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 technologies with over 90 years of innovation in industrial, automotive, and computing applications.
The SN74AVC6T622ZXYR belongs to TI's AVC family of advanced low-voltage CMOS transceivers, engineered specifically for AC'97 audio interface bridging in space- and power-constrained computing platforms.
FAQ
What is the primary function of the SN74AVC6T622ZXYR in an AC'97 audio system?
The SN74AVC6T622ZXYR serves as a bidirectional voltage-level transceiver that bridges 1.8 V AC'97 controllers with 3.3 V AC'97 codecs. It translates logic levels while preserving AC'97 timing specifications across six signal lines - including SYNC, BIT_CLK, RESET, SDATA_Out, SDATA_In, and GPIO - using three independent direction controls. This ensures full protocol compliance without external components.
Can the SN74AVC6T622ZXYR operate with mismatched supply voltages such as VCCA = 1.8 V and VCCB = 3.3 V?
Yes, the SN74AVC6T622ZXYR is explicitly designed for mismatched dual-supply operation. VCCA can be set to 1.8 V to match the controller's I/O voltage, while VCCB is set to 3.3 V for the codec side. Input thresholds track their respective supplies, and output drive strength scales with VCCB - enabling robust signal integrity across the voltage boundary without level-shifting circuitry.
How does the SN74AVC6T622ZXYR handle power sequencing when one supply is ramped before the other?
When either VCCA or VCCB drops to 0 V, all corresponding I/Os automatically enter high-impedance state. This prevents back-driving, latch-up, or excessive leakage current during asymmetric power-up/down sequences. The SN74AVC6T622ZXYR thus supports flexible system-level power management - for example, powering down the audio codec (VCCB = 0 V) while keeping the controller active (VCCA = 1.8 V) for wake-on-audio events.
Is the exposed thermal pad on the SN74AVC6T622ZXYR package required to be connected to ground?
No - the exposed center pad on the SN74AVC6T622ZXYR's ZXY package may be connected to GND for improved thermal and mechanical performance, or left electrically open per the datasheet. TI specifies that grounding is optional and not mandatory for functional operation, though recommended for thermal dissipation in sustained high-speed operation.
Does the SN74AVC6T622ZXYR support hot-plug or live-insertion scenarios in AC'97 systems?
The SN74AVC6T622ZXYR supports hot-plug operation through its Ioff protection feature: when powered off (VCCA = 0 V or VCCB = 0 V), I/O leakage remains ≤ ±5 µA, preventing signal contention on live buses. Combined with high-impedance outputs and ESD robustness (7000-V HBM), it safely isolates the controller or codec side during insertion/removal - making it suitable for field-replaceable audio modules.
SN74AVC6T622ZXYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-UFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Audio, AC '97
- Data Interface:
- AC'97
- Resolution (Bits):
- -
- Number of ADCs / DACs:
- -
- Sigma Delta:
- -
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-BGA Microstar Junior (2.5x3.0)
SN74AVC6T622ZXYR FAQ
1.How can I place an order for SN74AVC6T622ZXYR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AVC6T622ZXYR 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 SN74AVC6T622ZXYR reliable?
The price and inventory of SN74AVC6T622ZXYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AVC6T622ZXYR is usually 5 days.
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Once your SN74AVC6T622ZXYR 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 SN74AVC6T622ZXYR?
For technical support, including SN74AVC6T622ZXYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AVC6T622ZXYR requirements.
6.How does Aetrix verify that SN74AVC6T622ZXYR is sourced from the original manufacturer or authorized distributors?
All SN74AVC6T622ZXYR 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 SN74AVC6T622ZXYR meets industry standards.
7.What is the process for return or replacement of SN74AVC6T622ZXYR?
All SN74AVC6T622ZXYR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AVC6T622ZXYR, 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 SN74AVC6T622ZXYR part is unused and in its original packaging.
Return procedure for SN74AVC6T622ZXYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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