SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 FEATURES • • • • Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage VCC Isolation Feature – If Either VCC Input Is at GND, All Outputs Are in the High-Impedance State Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications Fully Configurable Dual-Rail Design Allows Each Port to Operate Over Full 1.2-V to 3.6-V Power-Supply Range • • • • Ioff Supports Partial-Power-Down Mode Operation I/Os Are 4.6-V Tolerant Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Protection Exceeds JESD 22 – 8000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) DESCRIPTION/ORDERING INFORMATION This 24-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC24T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes. The SN74AVC24T245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are effectively isolated. The SN74AVC24T245 is designed so that the control pins (1DIR, 2DIR, 3DIR, 4DIR, 5DIR, 6DIR, 1OE, 2OE, 3OE, 4OE, 5OE, and 6OE) are supplied by VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to VCCA through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PACKAGE (1) TA –40°C to 85°C (1) ORDERABLE PART NUMBER LFBGA – GRG Tape and reel SN74AVC24T245GRGR LFBGA – ZRG (Pb-free) Tape and reel SN74AVC24T245ZRGR TOP-SIDE MARKING WH245 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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 © 2004–2005, Texas Instruments Incorporated SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 GRG OR ZRG PACKAGE (TOP VIEW) 1 2 3 4 5 6 A B C D E F G H J K L M N P TERMINAL FUNCTIONS 1 2 3 4 5 6 A 6OE 5OE 4OE 3OE 2OE 1OE B 1B1 1B2 VCCB VCCA 1A2 1A1 C 1B3 1B4 GND GND 1A4 1A3 D 2B1 2B2 VCCB VCCA 2A2 2A1 E 2B3 2B4 GND GND 2A4 2A3 F 3B1 3B2 GND GND 3A2 3A1 G 3B3 3B4 GND 3A4 3A3 H 4B1 4B2 VCCB VCCA 4A2 4A1 J 4B3 4B4 GND GND 4A4 4A3 K 5B1 5B2 GND GND 5A2 5A1 L 5B3 5B4 VCCB VCCA 5A4 5A3 M 6B1 6B2 GND GND 6A2 6A1 N 6B3 6B4 VCCB VCCA 6A4 6A3 P 6DIR 5DIR 4DIR 3DIR 2DIR 1DIR FUNCTION TABLE (EACH 4-BIT SECTION) INPUTS OE 2 DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation www.ti.com SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 1DIR P6 2DIR A6 1A1 A5 1OE B6 2A1 B1 P5 D6 D1 1B1 P4 4DIR A4 3A1 P3 A3 3OE F6 4A1 F1 H1 3B1 P2 6DIR A1 6A1 K1 P1 5OE K6 To Three Other Channels 4B1 To Three Other Channels A2 5A1 4OE H6 To Three Other Channels 5DIR 2B1 To Three Other Channels To Three Other Channels 3DIR 2OE 6OE M6 M1 5B1 6B1 To Three Other Channels 3 SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) VCCA VCCB Supply voltage range VI Input voltge range (2) MIN MAX –0.5 4.6 I/O ports (A port) –0.5 4.6 I/O ports (B port) –0.5 4.6 Control inputs –0.5 4.6 A port –0.5 4.6 B port –0.5 4.6 A port –0.5 VCCA + 0.5 B port –0.5 VCCB + 0.5 UNIT V V VO Voltage range applied to any output in the high-impedance or power-off state (2) VO Voltage range applied to any output in the high or low state (2) (3) IIK Input clamp current VI < 0 –50 mA IOK Output clamp current VO < 0 –50 mA IO Continuous output current ±50 mA ±100 Continuous current through each VCCA, VCCB, and GND θJA Package thermal impedance (4) Tstg Storage temperature range (1) (2) (3) (4) 4 GRG/ZRG package –65 V V mA 50 °C/W 150 °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed. The package thermal impedance is calculated in accordance with JESD 51-7. www.ti.com SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Recommended Operating Conditions (1) (2) (3) VCCI VCCO MIN MAX UNIT VCCA Supply voltage 1.2 3.6 V VCCB Supply voltage 1.2 3.6 V High-level input voltage VIH Low-level input voltage VIL High-level input voltage VIH VIL Low-level input voltage VI Input voltage VO Output voltage IOH Data inputs (4) Data inputs (4) DIR (referenced to VCCA) (5) DIR (referenced to VCCA) (5) 1.6 2.7 V to 3.6 V 2 V 1.2 V to 1.95 V VCCI × 0.35 1.95 V to 2.7 V 0.7 2.7 V to 3.6 V 0.8 1.2 V to 1.95 V VCCA × 0.65 1.95 V to 2.7 V 1.6 2.7 V to 3.6 V 2 1.2 V to 1.95 V VCCA × 0.35 1.95 V to 2.7 V 0.7 2.7 V to 3.6 V 3.6 3-state 0 3.6 TA Operating free-air temperature V 0.8 VCCO Low-level output current V V 0 Input transition rise or fall rate (4) (5) 1.95 V to 2.7 V Active state ∆t/∆v (1) (2) (3) VCCI × 0.65 0 High-level output current IOL 1.2 V to 1.95 V 1.2 V –3 1.4 V to 1.6 V –6 1.65 V to 1.95 V –8 2.3 V to 2.7 V –9 3 V to 3.6 V –12 1.2 V 3 1.4 V to 1.6 V 6 1.65 V to 1.95 V 8 2.3 V to 2.7 V 9 3 V to 3.6 V 12 –40 V V mA mA 5 ns/V 85 °C VCCI is the VCC associated with the data input port. VCCO is the VCC associated with the output port. All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7 V, VIL max = VCCI × 0.3 V. For VCCI values not specified in the data sheet, VIH min = VCCA × 0.7 V, VIL max = VCCA × 0.3 V. 5 SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) (1) (2) PARAMETER TEST CONDITIONS 1.2 V to 3.6 V 1.2 V to 3.6 V IOH = –3 mA 1.2 V 1.2 V IOH = –6 mA 1.4 V 1.4 V 1.05 1.65 V 1.65 V 1.2 IOH = –9 mA 2.3 V 2.3 V 1.75 IOH = –12 m 3V 3V 2.3 IOL = 100 µA 1.2 V to 3.6 V 1.2 V to 3.6 V IOL = 3 mA 1.2 V 1.2 V IOL = 6 mA 1.4 V 1.4 V 0.35 1.65 V 1.65 V 0.45 IOL = 9 mA 2.3 V 2.3 V 0.55 IOL = 12 mA 3V 3V 0.7 1.2 V to 3.6 V 1.2 V to 3.6 V 0V IOH = –8 mA VOL IOL = 8 mA Control inputs II A or B port Ioff A or B port IOZ (3) A or B port VI = VIH VI = VIL VI = VCCA or GND VO = VCCO or GND, VI = VCCI or GND, OE = VIH VI = VCCI or GND, IO = 0 ICCB ICCA + ICCB MIN TYP MAX MIN MAX UNIT VCCO – 0.2 0.95 V 0.2 0.15 ±0.025 ±0.25 ±1 0 to 3.6 V ±0.1 ±2.5 ±5 0 to 3.6 V 0V ±0.1 ±2.5 ±5 3.6 V 3.6 V ±0.5 ±2.5 ±5 1.2 V to 3.6 V 1.2 V to 3.6 V 40 V µA µA VI or VO = 0 to 3.6 V VI = VCCI or GND, IO = 0 ICCA –40°C to 85°C VCCB IOH = –100 µA VOH TA = 25°C VCCA 0V 3.6 V –5 3.6 V 0V 40 1.2 V to 3.6 V 1.2 V to 3.6 V 40 0V 3.6 V 40 3.6 V 0V –5 VI = VCCI or GND, IO = 0 1.2 V to 3.6 V 1.2 V to 3.6 V 75 µA µA µA µA Ci Control inputs VI = 3.3 V or GND 3.3 V 3.3 V 3.5 pF Cio A or B port VO = 3.3 V or GND 3.3 V 3.3 V 7 pF (1) (2) (3) 6 VCCO is the VCC associated with the output port. VCCI is the VCC associated with the input port. For I/O ports, the parameter IOZ includes the input leakage current. SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V TYP TYP TYP TYP TYP 4.1 3.3 3 2.8 3.2 4.1 3.3 3 2.8 3.2 4.4 4 3.8 3.6 3.5 4.4 4 3.8 3.6 3.5 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6 4.6 4 3.4 3.2 6 4.6 4 3.4 3.2 6.6 6.6 6.6 6.6 6.8 6.6 6.6 6.6 6.6 6.8 6 4.9 4.9 4.2 5.3 6 4.9 4.9 4.2 5.3 UNIT ns ns ns ns ns ns Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 3.6 0.5 6.2 0.5 5.2 0.5 4.1 0.5 3.7 3.6 0.5 6.2 0.5 5.2 0.5 4.1 0.5 3.7 3.3 0.5 6.2 0.5 5.9 0.5 5.6 0.5 5.5 3.3 0.5 6.2 0.5 5.9 0.5 5.6 0.5 5.5 4.3 1 10.1 1 10.1 1 10.1 1 10.1 4.3 1 10.1 1 10.1 1 10.1 1 10.1 5.6 1 10.1 0.5 8.1 0.5 5.9 0.5 5.2 5.6 1 10.1 0.5 8.1 0.5 5.9 0.5 5.2 4.5 1.5 9.1 1.5 9.1 1.5 9.1 1.5 9.1 4.5 1.5 9.1 1.5 9.1 1.5 9.1 1.5 9.1 5.5 1.5 8.7 1.5 7.5 1 6.5 1 6.3 5.5 1.5 8.7 1.5 7.5 1 6.5 1 6.3 UNIT ns ns ns ns ns ns 7 SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 3.4 0.5 5.9 0.5 4.8 0.5 3.7 0.5 3.3 3.4 0.5 5.9 0.5 4.8 0.5 3.7 0.5 3.3 3 0.5 5.2 0.5 4.8 0.5 4.5 0.5 4.4 3 0.5 5.2 0.5 4.8 0.5 4.5 0.5 4.4 3.4 1 7.8 1 7.8 1 7.8 1 7.8 3.4 1 7.8 1 7.8 1 7.8 1 7.8 5.4 1 9.2 0.5 7.4 0.5 5.3 0.5 4.5 5.4 1 9.2 0.5 7.4 0.5 5.3 0.5 4.5 4.2 1.5 7.7 1.5 7.7 1.5 7.7 1.5 7.7 4.2 1.5 7.7 1.5 7.7 1.5 7.7 1.5 7.7 5.2 1.5 8.4 1.5 7.1 1 5.9 1 5.7 5.2 1.5 8.4 1.5 7.1 1 5.9 1 5.7 UNIT ns ns ns ns ns ns Switching Characteristics over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ 8 FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 3.2 0.5 5.6 0.5 4.5 0.5 3.3 0.5 2.8 3.2 0.5 5.6 0.5 4.5 0.5 3.3 0.5 2.8 2.6 0.5 4.1 0.5 3.7 0.5 3.3 0.5 3.2 2.6 0.5 4.1 0.5 3.7 0.5 3.3 0.5 3.2 2.5 0.5 5.3 0.5 5.3 0.5 5.3 0.5 5.3 2.5 0.5 5.3 0.5 5.3 0.5 5.3 0.5 5.3 5.2 0.5 9.4 0.5 7.3 0.5 5.1 0.5 4.5 5.2 0.5 9.4 0.5 7.3 0.5 5.1 0.5 4.5 3 1 6.1 1 6.1 1 6.1 1 6.1 3 1 6.1 1 6.1 1 6.1 1 6.1 5 1 7.9 1 6.6 1 6.1 1 5.2 5 1 7.9 1 6.6 1 6.1 1 5.2 UNIT ns ns ns ns ns ns SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Switching Charactertistics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 3.2 0.5 5.5 0.5 4.4 0.5 3.2 0.5 2.7 3.2 0.5 5.5 0.5 4.4 0.5 3.2 0.5 2.7 2.8 0.5 3.7 0.5 3.3 0.5 2.8 0.5 2.7 2.8 0.5 3.7 0.5 3.3 0.5 2.8 0.5 2.7 2.2 0.5 4.3 0.5 4.2 0.5 4.1 0.5 4 2.2 0.5 4.3 0.5 4.2 0.5 4.1 0.5 4 5.1 0.5 9.3 0.5 7.2 0.5 4.9 0.5 4 5.1 0.5 9.3 0.5 7.2 0.5 4.9 0.5 4 3.4 0.5 5 0.5 5 0.5 5 0.5 5 3.4 0.5 5 0.5 5 0.5 5 0.5 5 4.9 1 7.7 1 6.5 1 5.2 0.5 5 4.9 1 7.7 1 6.5 1 5.2 0.5 5 UNIT ns ns ns ns ns ns Operating Characteristics VCCA and VCCB = 3.3 V, TA = 25°C VCCA = VCCB = 1.5 V VCCA = VCCB = 1.2 V VCCA = VCCB = 1.8 V VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V TYP TYP TYP TYP TYP 1 1 1 2 2 1 1 1 1 2 19 19 20 21 22 Outputs disabled 1 1 1 1 1 Outputs enabled 19 19 20 21 22 1 1 1 1 1 1 1 1 2 2 1 1 1 1 2 PARAMETER A to B CpdA (1) B to A A to B CpdB (1) B to A (1) TEST CONDITIONS Outputs enabled Outputs disabled Outputs enabled Outputs disabled Outputs enabled CL = 0, f = 10 MHz, tr = tf = 1 ns CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs disabled UNIT pF pF Power dissipation capacitance per transceiver 9 SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 PARAMETER MEASUREMENT INFORMATION 2 × VCCO S1 RL From Output Under Test Open GND CL (see Note A) TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 2 × VCCO GND RL tw LOAD CIRCUIT VCCI VCCI/2 Input VCCO CL RL VTP 1.5 V ± 0.1 V 1.8 V ± 0.15 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V 15 pF 15 pF 15 pF 15 pF 2 kΩ 2 kΩ 2 kΩ 2 kΩ 0.1 V 0.15 V 0.15 V 0.3 V VCCI/2 0V VOLTAGE WAVEFORMS PULSE DURATION VCCA Output Control (low-level enabling) VCCA/2 VCCA/2 0V tPZL VCCI Input VCCI/2 VCCI/2 0V tPLH Output tPHL VCCO/2 VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOH VCCO/2 VOL tPLZ VCCO Output Waveform 1 S1 at 2 × VCCO (see Note B) VCCO/2 VOL + VTP VOL tPZH Output Waveform 2 S1 at GND (see Note B) tPHZ VCCO/2 VOH − VTP VOH 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR10 MHz, ZO = 50 Ω, dv/dt ≥ 1 V/ns. D. The outputs are measured one at a time, with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd. H. VCCI is the VCC associated with the input port. I. VCCO is the VCC associated with the output port. Figure 1. Load Circuit and Voltage Waveforms 10 PACKAGE OPTION ADDENDUM www.ti.com 16-Aug-2005 PACKAGING INFORMATION Orderable Device Status (1) SN74AVC24T245GRGR ACTIVE BGA MI CROSTA R JUNI OR GRG 83 1000 SN74AVC24T245ZRGR ACTIVE BGA MI CROSTA R JUNI OR ZRG 83 1000 Green (RoHS & no Sb/Br) Package Type Package Drawing Pins Package Eco Plan (2) Qty TBD Lead/Ball Finish MSL Peak Temp (3) SNPB Level-1-240C-UNLIM SNAGCU Level-1-260C-UNLIM (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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. 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