TSB14AA1APFB

TSB14AA1A TSB14AA1AI TSB14AA1AT www.ti.com SLLA222 – JUNE 2006 3.3-V IEEE 1394-1995 Backplane PHY FEATURES • • • • • • • • Provides a Backplane 1394 Environment That Supports an Asynchronous Transfer Rate of 50 or 100 Mbits/s Across 2 Etches Single 3.3-V Supply Operation With 5-V Tolerance on the Transceiver Receive Interface Allows Utilization of 3-State Drivers as Well as Open-Collector Drivers Software Compatible With the TSB14CO1APM Enhanced Compatibility With the 1394 Cable Link Layer. Compatible With 1394–1995 and 1394a–2000 Link Layers; PHY/link Interface is 1394a Compliant1 Supports Provisions of IEEE 1394–199523 Extensive Testability and Debug Functions Added. Expanded Register Set Including Automatic Saving of ID and Priority for Last Node Winning Arbitration 100 MHz or 50 MHz Oscillator Provides Transmit, Receive Data, and Link Layer Controller (LLC) Clocks • • • Logic Performs System Initialization Arbitration Functions. Encode And Decode Functions Included for Data-Strobe Bit Level Encoding. Incoming Data Resynchronized to Local Clock. Operates Over the Extended Temperature Ranges of 0°C to 70°C (no suffix), –40°C to 85°C (I suffix), and –40°C to 105°C (T suffix) Packaged in the Very Compact 48-Pin 7 x 7 x 1 mm PFB Package (1) IEEE Std 1394a–2000, IEEE Standard for a High Performance Serial Bus – Amendment 1 (2) IEEE Std 1394–1995, IEEE Standard for a High Performance Serial Bus (3) Implements technology covered by one or more patents of Apple Computer, Inc. and ST Microelectronics. DESCRIPTION The TSB14AA1A (TSB14AA1A refers to all three devices: TSB14AA1A, TSB14AA1AI, and TSB14AA1AT) is the second-generation 1394 backplane physical layer device. It is recommended for use in all new designs instead of the first generation TSB14C01A. It provides the physical layer functions needed to implement a single port node in a backplane based 1394 network. The TSB14AA1A provides two pins for transmitting, two for receiving, and two pins to externally control the transceivers for data and strobe. In addition to supporting open-collector drivers, the TSB14AA1A can also support 3-state (1) (high-impedance) drivers. The TSB14AA1A is not designed to drive the backplane directly; this function must be provided externally. The TSB14AA1A is designed to interface with a link-layer controller (LLC), such as the TSB12LV01B, TSB12LV32, TSB12LV21B, etc. The TSB14AA1A requires an external 98.304-MHz reference oscillator input for S100 asynchronous only operation or 49.152-MHz for S50 asynchronous only operation. Two clock select pins (CLK_SEL0, CLK_SEL1) select the speed mode for the TSB14AA1A. For S100 operation, the 98.304-MHz reference signal is internally divided to provide the 49.152-MHz system clock signals used to control transmission of the outbound encoded strobe and data information. The 49.152-MHz clock signal is also supplied to the associated LLC for synchronization of the two chips and is used for resynchronization of the received data. For S50 operation, a 49.152-MHz reference signal is used. This reference signal is internally divided to provide the 24.576-MHz system clock signals for S50 operations. During packet transmit, data bits to be transmitted are received from the LLC on two parallel paths and are latched internally in the TSB14AA1A in synchronization with the system clock. These bits are combined serially, encoded, and transmitted as the outbound data-strobe information stream. During transmit, the encoded data information is transmitted on TDATA, and the encoded strobe information is transmitted on TSTRB. (1) 3-State means a driver may drive high, low, or may be placed in a high-impedance state Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006, Texas Instruments Incorporated TSB14AA1A TSB14AA1AI TSB14AA1AT www.ti.com SLLA222 – JUNE 2006 During packet reception, the data information is received on RDATA and strobe information is received on RSTRB. The received data and strobe information is decoded to recover the received clock signal and the serial data bits, which are resynchronized to the local system clock. The serial data bits are split into two parallel streams and sent to the associated LLC. The PHY-Link interface has been made compliant to IEEE 1394a–2000 including timing and transfer of register 0 to the link-layer automatically after every 1394 bus reset. The TSB14AA1A is a 3.3 V device that provides LVCMOS level outputs. The TSB14AA1A is an asynchronous only device. NOTE: This product is for high-volume applications only. For a complete datasheet or more information contact support@ti.com. 2 Submit Documentation Feedback PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) (3) Device Marking Samples (4/5) (6) TSB14AA1AIPFB ACTIVE TQFP PFB 48 250 RoHS & Green NIPDAU Level-2-260C-1 YEAR TSB14AA1APFB ACTIVE TQFP PFB 48 250 RoHS & Green NIPDAU Level-2-260C-1 YEAR 0 to 70 TSB14AA1AI Samples TSB14AA1A Samples (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of