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Texas Instruments TWL1200YFFR
- Part No.:
- TWL1200YFFR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
TWL1200YFFR.pdf
- Description:
- IC TRANSLATOR BIDIR 49DSBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TWL1200YFFR from Texas Instruments is a 19-bit bidirectional voltage-translation transceiver designed to bridge 1.8-V/2.6-V I/O compatibility gaps between baseband processors and TI Wi-Link-6 (WL1271/WL1273) modules. It supports SDIO (50 MHz clock, 60 Mbps data), UART (8-mA TX drive), and audio (4-mA buffered I/O) interfaces with dual supplies (VCCA/VCCB: 1.1 V–3.6 V) and active-low OE control. Used in mobile-phone RF front-end interconnects.
For engineers reviewing the TWL1200YFFR datasheet, TWL1200YFFR pinout, TWL1200YFFR application, or TWL1200YFFR equivalent, key selection criteria include SDIO channel skew (<0.4 ns), dual-voltage rail flexibility, direction-controlled audio clock translation, and WCSP package thermal resistance (75 °C/W).
Technical Context
The TWL1200YFFR implements per-channel bidirectional level translation using switch-type and buffer-type I/O architectures. AUD_DIR controls audio signal direction (AUDIO_CLK/AUDIO_F-SYN), while OE enables/disables all outputs. Each SDIO lane supports push-pull or open-drain driving modes with configurable drive strengths (2/4/8 mA) per terminal.
It integrates dedicated logic for WLAN_EN/WLAN_IRQ handshaking, BT_UART RTS/CTS flow control, and SLOW_CLK distribution (32-kHz). The device operates across –40°C to +85°C with latch-up immunity >100 mA per JESD78 Class II and ESD protection up to 2500-V HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA/VCCB Range | 1.1 V to 3.6 V - Enables interoperability between 1.8-V peripherals and 2.6-V basebands without external level-shifting circuitry. |
| SDIO Clock Rate | 50 MHz - Supports high-speed SDIO 2.0 mode for Wi-Fi coexistence with baseband processors. |
| Max Data Rate | 60 Mbps - Meets SDIO CMD/DATA timing requirements under push-pull driving conditions. |
| Output Drive Strength | 2/4/8 mA - Configurable per-pin (e.g., SDIO_CLK(B): 8 mA; WLAN_EN(B): 2 mA) to match load capacitance and signal integrity needs. |
| Propagation Skew | <0.4 ns - Ensures tight timing alignment across SDIO channels for reliable multi-bit transfers. |
| Thermal Resistance | 75 °C/W (YFF package) - Supports compact mobile PCB layouts with limited heatsinking capability. |
| ESD Protection | 2500-V HBM - Complies with JEDEC JESD22-A114B for robust handling in handheld assembly environments. |
Pinout & Package
The TWL1200YFFR uses a 49-bump wafer chip scale package (WCSP, YFF) with 0.4-mm pitch and bottom-side ball layout. Package dimensions are 3.1 mm × 3.1 mm × 0.55 mm (max height), optimized for space-constrained mobile applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | SDIO_CLK(A) | Input clock referenced to VCCA; connects to baseband SDIO controller. |
| A2 | SDIO_CMD(A) | I/O command line with 15-kΩ pullup to VCCB; referenced to VCCA on A side. |
| B1–B2, C1–C2 | SDIO_DATAx(A) | Four-bit data bus (x=0–3) referenced to VCCA; connects to baseband SDIO controller. |
| A5–A7, B5–B7, C5–C7 | SDIO_x(B) | Corresponding SDIO signals referenced to VCCB; connect to WL1271/WL1273 peripheral. |
| A3, A4 | AUDIO_CLK(A), AUD_DIR | AUDIO_CLK(A): bidirectional audio clock; AUD_DIR: direction control for audio sync signals. |
| F3–F5, G1–G5 | AUDIO_IN/OUT, BT_UART | Dedicated audio PCM and Bluetooth UART paths with defined drive strengths (4 mA or 8 mA). |
| C4, D4, C5, D5 | VCCA, VCCB | Independent supply pins enabling asymmetric voltage operation (e.g., VCCA = 2.6 V, VCCB = 1.8 V). |
| B4, D3–E5 | OE, GND | Active-low output enable (OE) and multiple ground connections for noise suppression and return path integrity. |
Key Features
| Feature | Design Value |
|---|---|
| 19-bit bidirectional translation | Simultaneously bridges SDIO (7-bit), audio (6-bit), UART (4-bit), and control (2-bit) interfaces between mismatched voltage domains. |
| Configurable drive strength | Per-pin selection of 2/4/8 mA output drive allows optimization of rise/fall times and EMI for each signal class (e.g., 8 mA for SDIO_CLK, 2 mA for WLAN_EN). |
| Direction-controlled audio path | AUD_DIR pin selects unidirectional clock/sync transfer direction (A→B or B→A), eliminating need for external logic in PCM interface routing. |
| Low quiescent current | 30 μA total ICCA+ICCB - Minimizes battery drain in always-on mobile standby modes. |
| Wafer-level CSP packaging | YFF package (3.1×3.1 mm) reduces PCB area by >50% vs. comparable BGA alternatives while maintaining thermal performance (75 °C/W). |
Applications
| Smartphone Baseband–Wi-Fi Coexistence | Mobile Audio Subsystem Interfacing |
|---|---|
Use Scenario: Integrating TI WL1271 Wi-Fi/BT combo module with 2.6-V application processor in LTE smartphone design. IC Role / Device Role / Timing Role: Voltage translator for SDIO 4-bit data, command, and clock lines; provides level-shifted WLAN_EN/WLAN_IRQ handshaking and CLK_REQ signaling. Use Value: Eliminates discrete level shifters, reduces BOM count by 7+ components, and maintains <0.4-ns SDIO channel skew for error-free 50-MHz operation. | Use Scenario: Connecting baseband audio codec to WL1273's PCM interface in dual-mode voice/Wi-Fi handset. IC Role / Device Role / Timing Role: Bidirectional audio clock (AUDIO_CLK) and frame sync (AUDIO_F-SYN) translator with direction control via AUD_DIR pin. Use Value: Enables single-device support for both master (baseband-driven) and slave (Wi-Link-driven) PCM configurations without PCB redesign. |
| Bluetooth UART Bridge | Low-Power Mobile Peripheral Hub |
Use Scenario: Routing UART signals between 2.6-V baseband and 1.8-V WL1271 BT subsystem in wearable device. IC Role / Device Role / Timing Role: Translates BT_UART_TX/RX/RTS/CTS with 8-mA TX drive and 4-mA RX termination matching. Use Value: Guarantees clean 3.3-V logic thresholds at 1.8-V receiver inputs while sustaining 3-Mbps UART throughput. | Use Scenario: Consolidating SDIO, audio, and slow-clock interfaces in compact IoT tracker with constrained PCB real estate. IC Role / Device Role / Timing Role: Centralized voltage translation hub managing SLOW_CLK distribution, WLAN interrupt signaling, and SDIO power sequencing via OE control. Use Value: Reduces interconnect complexity by 60%, lowers system-level EMI through integrated ground planes, and supports 1.1-V minimum VCC operation for ultra-low-power sleep states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TWL1220YFFR | Same pinout, adds integrated LDOs for VMMC/VIO rails; higher quiescent current (120 μA vs. 30 μA). | Required when system lacks external 1.8-V/2.8-V supplies for SD card or I/O peripherals. | Select TWL1220YFFR only if auxiliary power regulation is needed; otherwise TWL1200YFFR offers lower static power and smaller die size. |
| SN74AVC16T245DGGR | 16-bit non-audio-optimized translator; no AUD_DIR, no WLAN/BT-specific signals; 56-pin TSSOP package (vs. 49-bump WCSP). | Suitable for generic SDIO-only bridging where audio/UART paths are handled separately. | Choose SN74AVC16T245DGGR for cost-sensitive designs with larger board area and no audio/Bluetooth integration requirements. |
Compared with TWL1200YFFR, TWL1220YFFR adds power management but increases static current 4×, while SN74AVC16T245DGGR provides broader channel count at the expense of missing application-specific features (AUD_DIR, WLAN_EN, SLOW_CLK) and requiring +2.5 mm² PCB area.
Availability
TWL1200YFFR is available at Aetrix Electronics and suitable for smartphone RF coexistence, mobile audio subsystem interfacing, and Bluetooth UART bridging requiring stable component supply across high-volume production cycles.
Supply support for TWL1200YFFR 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 leader specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The TWL1200YFFR belongs to TI's wireless connectivity interface product line, engineered specifically to simplify integration of Wi-Link-6 modules into mobile baseband platforms with minimal external components.
FAQ
What is the primary function of the TWL1200YFFR in a mobile system architecture?
The TWL1200YFFR serves as a dedicated voltage-translation hub between 2.6-V baseband processors and 1.8-V TI Wi-Link-6 (WL1271/WL1273) modules. It handles SDIO, UART, and audio signal translation with dual independent supplies (VCCA/VCCB), direction control (AUD_DIR), and active-low output enable (OE). Its design eliminates discrete level shifters in smartphone RF coexistence layouts.
How does the AUD_DIR pin affect audio signal routing in the TWL1200YFFR?
The AUD_DIR pin on the TWL1200YFFR determines bidirectional flow direction for AUDIO_CLK and AUDIO_F-SYN signals. When AUD_DIR = high, translation occurs from A-side (baseband) to B-side (Wi-Link); when low, it reverses. This eliminates need for external multiplexers in PCM interface designs and enables flexible master/slave audio clocking configurations without changing hardware.
Can the TWL1200YFFR operate with asymmetric supply voltages, and what are the valid ranges?
Yes, the TWL1200YFFR supports fully independent VCCA and VCCB supplies ranging from 1.1 V to 3.6 V each. Valid asymmetric configurations include VCCA = 2.6 V (baseband rail) and VCCB = 1.8 V (Wi-Link rail), or VCCA = 1.2 V (ultra-low-power mode) and VCCB = 3.3 V (legacy peripheral). Absolute maximum ratings allow up to 4.6 V on either supply, but recommended operation stays within 1.1–3.6 V.
What is the significance of the 75 °C/W thermal resistance specification for the TWL1200YFFR YFF package?
The 75 °C/W junction-to-ambient thermal resistance of the TWL1200YFFR's YFF wafer chip scale package reflects its efficiency in dissipating heat in space-constrained mobile PCBs. At 30 μA quiescent current and typical 8-mA SDIO_CLK drive, self-heating remains below 0.1°C - enabling reliable operation in sealed smartphone chassis without thermal derating or heatsinks.
Does the TWL1200YFFR require external pull-up resistors on SDIO_CMD lines, and if so, what value is specified?
Yes, the TWL1200YFFR includes an internal 15-kΩ pullup resistor on the SDIO_CMD(B) pin to VCCB, as documented in the Terminal Functions table. No external pullup is required on SDIO_CMD(B); however, SDIO_CMD(A) has no internal pullup and must be externally biased - typically with a 10–47-kΩ resistor to VCCA - to ensure valid logic levels during initialization and hot-plug events.
TWL1200YFFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 4
- Voltage - VCCA:
- 1.1 V ~ 3.6 V
- Voltage - VCCB:
- 1.1 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain
- Data Rate:
- 60Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Audio, SIM Card Interface, UART
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 49-UFBGA, DSBGA
TWL1200YFFR FAQ
1.How can I place an order for TWL1200YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TWL1200YFFR 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 TWL1200YFFR reliable?
The price and inventory of TWL1200YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TWL1200YFFR is usually 5 days.
3.What payment methods are accepted for TWL1200YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TWL1200YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TWL1200YFFR?
TWL1200YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TWL1200YFFR 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 TWL1200YFFR?
For technical support, including TWL1200YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TWL1200YFFR requirements.
6.How does Aetrix verify that TWL1200YFFR is sourced from the original manufacturer or authorized distributors?
All TWL1200YFFR 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 TWL1200YFFR meets industry standards.
7.What is the process for return or replacement of TWL1200YFFR?
All TWL1200YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TWL1200YFFR, 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 TWL1200YFFR part is unused and in its original packaging.
Return procedure for TWL1200YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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