SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 FEATURES • • • DGV OR PW PACKAGE (TOP VIEW) VCCA DIR A1 A2 A3 A4 A5 A6 A7 A8 GND GND 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 RHL PACKAGE (TOP VIEW) VCCB VCCB OE B1 B2 B3 B4 B5 B6 B7 B8 GND DIR A1 A2 A3 A4 A5 A6 A7 A8 GND VCCB • • Max Data Rates: – 320 Mbps (VCCA ≥ 1.8 V and VCCB ≥ 1.8 V) – 170 Mbps (VCCA ≤ 1.8 V or VCCB ≤ 1.8 V) Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors 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) 1 24 3 4 23 VCCB 22 OE 21 B1 5 6 20 B2 19 B3 7 8 18 B4 17 B5 9 10 16 B6 15 B7 2 14 B8 11 12 13 GND • • VCCA • Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage VCC Isolation Feature – If Either VCC Input Is at GND, All I/O Ports Are in the High-Impedance State Ioff Supports Partial-Power-Down Mode Operation Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range I/Os Are 4.6-V Tolerant GND • DESCRIPTION/ORDERING INFORMATION This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVCH8T245 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. ORDERING INFORMATION PACKAGE (1) TA QFN – RHL –40°C to 85°C TSSOP – PW TVSOP – DGV (1) ORDERABLE PART NUMBER Reel of 1000 SN74AVCH8T245RHLR Tube of 60 SN74AVCH8T245PW Reel of 2000 SN74AVCH8T245PWR Reel of 2000 SN74AVCH8T245DGVR TOP-SIDE MARKING WP245 WP245 WP245 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 © 2004–2007, Texas Instruments Incorporated SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 DESCRIPTION/ORDERING INFORMATION (CONTINUED) The SN74AVCH8T245 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 SN74AVCH8T245 is designed so the control pins (DIR and OE) are supplied by VCCA. The SN74AVCH8T245 solution is compatible with a single-supply system and can be replaced later with a '245 function, with minimal printed circuit board redesign. 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, both outputs are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. To ensure the high-impedance state during power up or power down, OE shall be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. FUNCTION TABLE (each 8-bit section) INPUTS OE DIR OPERATION L L B data to A bus L H A data to B bus H X All output Hi-Z LOGIC DIAGRAM (POSITIVE LOGIC) DIR 2 22 OE A1 3 21 To Seven Other Channels 2 Submit Documentation Feedback B1 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) VCCA VCCB VI 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 Supply voltage range Input voltage range (2) 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 mA Continuous current through VCCA, VCCB, or GND θJA Package thermal impedance (4) Tstg Storage temperature range DGV package 86 PW package 88 RHL package (1) (2) (3) (4) V V °C/W 43 –65 150 °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. Submit Documentation Feedback 3 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 Recommended Operating Conditions (1) (2) (3) VCCI 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 Data inputs DIR (referenced to VCCA) DIR (referenced to VCCA) VCCI × 0.65 1.95 V to 2.7 V 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 VCCO 3-state 0 3.6 Input transition rise or fall rate TA Operating free-air temperature V 0.8 0 Low-level output current V V Active state ∆t/∆v (1) (2) (3) 1.2 V to 1.95 V 0 High-level output current IOL 4 VCCO 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 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. Submit Documentation Feedback SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 Electrical Characteristics (1) (2) over recommended operating free-air temperature range (unless otherwise noted) 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 mA 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 VI = 0.42 V 1.2 V 1.2 V VI = 0.49 V 1.4 V 1.4 V 15 VI = 0.58 V 1.65 V 1.65 V 25 VI = 0.7 V 2.3 V 2.3 V 45 VI = 0.8 V 3.3 V 3.3 V VI = 0.78 V 1.2 V 1.2 V VI = 0.91 V 1.4 V 1.4 V –15 VI = 1.07 V 1.65 V 1.65 V –25 VI = 1.6 V 2.3 V 2.3 V –45 VI = 2 V 3.3 V 3.3 V –100 1.2 V 1.2 V 1.6 V 1.6 V 125 1.95 V 1.95 V 200 2.7 V 2.7 V 300 3.6 V 3.6 V 1.2 V 1.2 V 1.6 V 1.6 V –125 1.95 V 1.95 V –200 2.7 V 2.7 V –300 3.6 V 3.6 V –500 IOH = –8 mA VOL IOL = 8 mA Control inputs II IBHL (3) IBHH (4) IBHLO (5) IBHHO (1) (2) (3) (4) (5) (6) (6) –40°C to 85°C VCCB IOH = –100 µA VOH TA = 25°C VCCA VI = VIH VI = VIL VI = VCCA or GND VI = 0 to VCC VI = 0 to VCC MIN TYP MAX MIN MAX UNIT VCCO – 0.2 0.95 V 0.2 0.15 ±0.025 ±0.25 ±1 V µA 25 µA 100 –25 µA 50 µA 500 –50 µA VCCI is the VCC associated with the input port. VCCO is the VCC associated with the output port. The bus-hold circuit can sink at least the minimum low sustaining current at VIL max. IBHL should be measured after lowering VIN to GND and then raising it to VIL max. The bus-hold circuit can source at least the minimum high sustaining current at VIH min. IBHH should be measured after raising VIN to VCC and then lowering it to VIH min. An external driver must source at least IBHLO to switch this node from low to high. An external driver must sink at least IBHHO to switch this node from high to low. Submit Documentation Feedback 5 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 Electrical Characteristics (continued) (1) (2) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER A port Ioff B port A or B port IOZ (3) B port A port ICCA TEST CONDITIONS VI or VO = 0 to 3.6 V ICCB ICCA + ICCB 0V 0 V to 3.6 V ±0.1 ±1 ±5 0 V to 3.6 V 0V ±0.1 ±1 ±5 3.6 V 3.6 V ±0.5 ±2.5 ±5 0V 3.6 V ±5 3.6 V 0V ±5 1.2 V to 3.6 V 1.2 V to 3.6 V 8 0V 3.6 V –2 3.6 V 0V 8 1.2 V to 3.6 V 1.2 V to 3.6 V 8 0V 3.6 V 8 3.6 V 0V –2 1.2 V to 3.6 V 1.2 V to 3.6 V 16 µA VO = VCCO or GND, VI = VCCI or GND, OE = don't care VI = VCCI or GND, VI = VCCI or GND, IO = 0 IO = 0 IO = 0 –40°C to 85°C VCCB VO = VCCO or GND, VI = VCCI or GND, OE = VIH VI = VCCI or GND, TA = 25°C VCCA MIN TYP MAX MIN MAX UNIT µA µA µA µA Ci Control inputs VI = 3.3 V or GND 3.3 V 3.3 V 3.5 4.5 pF Cio A or B port VO = 3.3 V or GND 3.3 V 3.3 V 6 7 pF (1) (2) (3) VCCI is the VCC associated with the input port. VCCO is the VCC associated with the output port. For I/O ports, the parameter IOZ includes the input leakage current. Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 10) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ 6 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 3.1 2.6 2.5 3 3.5 3.1 2.6 2.5 3 3.5 3.1 2.7 2.5 2.4 2.3 3.1 2.7 2.5 2.4 2.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.1 4 3.5 3.2 3.1 5.1 4 3.5 3.2 3.1 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.7 4 4.1 4.3 5.1 4.7 4 4.1 4.3 5.1 Submit Documentation Feedback UNIT ns ns ns ns ns ns SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 10) 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 2.7 0.5 5.4 0.5 4.6 0.5 4.9 0.5 6.8 2.7 0.5 5.4 0.5 4.6 0.5 4.9 0.5 6.8 2.6 0.5 5.4 0.5 5.1 0.5 4.7 0.5 4.5 2.6 0.5 5.4 0.5 5.1 0.5 4.7 0.5 4.5 3.7 1.1 8.7 1.1 8.7 1.1 8.7 1.1 8.7 3.7 1.1 8.7 1.1 8.7 1.1 8.7 1.1 8.7 4.8 1.1 7.6 1.1 7.1 1 5.6 1 5.2 4.8 1.1 7.6 1.1 7.1 1 5.6 1 5.2 3.1 0.5 8.6 0.5 8.6 0.5 8.6 0.5 8.6 3.1 0.5 8.6 0.5 8.6 0.5 8.6 0.5 8.6 4.1 0.5 8.4 0.5 7.6 0.5 7.2 0.5 7.8 4.1 0.5 8.4 0.5 7.6 0.5 7.2 0.5 7.8 UNIT ns ns ns ns ns ns Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 10) 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 2.5 0.5 5.1 0.5 4.4 0.5 4 0.5 3.9 2.5 0.5 5.1 0.5 4.4 0.5 4 0.5 3.9 2.5 0.5 4.6 0.5 4.4 0.5 3.9 0.5 3.7 2.5 0.5 4.6 0.5 4.4 0.5 3.9 0.5 3.7 3 1 6.8 1 6.8 1 6.8 1 6.8 3 1 6.8 1 6.8 1 6.8 1 6.8 4.6 1.1 8.2 1 6.7 0.5 5.1 0.5 4.5 4.6 1.1 8.2 1 6.7 0.5 5.1 0.5 4.5 2.8 0.5 7.1 0.5 7.1 0.5 7.1 0.5 7.1 2.8 0.5 7.1 0.5 7.1 0.5 7.1 0.5 7.1 3.9 0.5 7.8 0.5 6.9 0.5 6 0.5 5.8 3.9 0.5 7.8 0.5 6.9 0.5 6 0.5 5.8 Submit Documentation Feedback UNIT ns ns ns ns ns ns 7 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 Switching Characteristics over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 10) 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 2.4 0.5 4.7 0.5 3.9 0.5 3.1 0.5 2.8 2.4 0.5 4.7 0.5 3.9 0.5 3.1 0.5 2.8 3 0.5 4.9 0.5 4 0.5 3.1 0.5 2.9 3 0.5 4.9 0.5 4 0.5 3.1 0.5 2.9 2.2 0.5 4.8 0.5 4.8 0.5 4.8 0.5 4.8 2.2 0.5 4.8 0.5 4.8 0.5 4.8 0.5 4.8 4.5 1.1 7.9 0.5 6.4 0.5 4.6 0.5 4 4.5 1.1 7.9 0.5 6.4 0.5 4.6 0.5 4 1.8 0.5 5.1 0.5 5.1 0.5 5.1 0.5 5.1 1.8 0.5 5.1 0.5 5.1 0.5 5.1 0.5 5.1 3.6 0.5 7.1 0.5 6.3 0.5 5.1 0.5 3.9 3.6 0.5 7.1 0.5 6.3 0.5 5.1 0.5 3.9 UNIT ns ns ns ns ns ns Switching Characteristics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 10) 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 2.3 0.5 4.5 0.5 3.7 0.5 2.9 0.5 2.5 2.3 0.5 4.5 0.5 3.3 0.5 2.9 0.5 2.5 3.5 0.5 6.8 0.5 3.9 0.5 2.8 0.5 2.5 3.5 0.5 6.8 0.5 3.9 0.5 2.8 0.5 2.5 2 0.5 4 0.5 4 0.5 4 0.5 4 2 0.5 4 0.5 4 0.5 4 0.5 4 4.5 1.1 7.8 0.5 6.2 0.5 4.5 0.5 3.9 4.5 1.1 7.8 0.5 6.2 0.5 4.5 0.5 3.9 1.7 0.5 4 0.5 4 0.5 4 0.5 4 1.7 0.5 4 0.5 4 0.5 4 0.5 4 3.4 0.5 6.9 0.5 6 0.5 4.8 0.5 4.2 3.4 0.5 6.9 0.5 6 0.5 4.8 0.5 4.2 Submit Documentation Feedback UNIT ns ns ns ns ns ns SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 Operating Characteristics TA = 25°C VCCA = VCCB = 1.2 V VCCA = VCCB = 1.5 V VCCA = VCCB = 1.8 V VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V TYP TYP TYP TYP TYP 1 1 1 1 1 1 1 1 1 1 12 12 12 13 14 Outputs disabled 1 1 1 1 1 Outputs enabled 12 12 12 13 14 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 TEST CONDITIONS PARAMETER A to B CpdA (1) B to A A to B CpdB (1) B to A (1) Outputs enabled Outputs disabled Outputs enabled Outputs disabled Outputs enabled CL = 0, f = 10 MHz, tr = tf = 1 ns UNIT pF CL = 0, f = 10 MHz, tr = tf = 1 ns pF Outputs disabled Power dissipation capacitance per transceiver Table 1. Typical Total Static Power Consumption (ICCA + ICCB) VCCB VCCA 0V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V 0V 0 <0.5 <0.5 <0.5 <0.5 <0.5 1.2 V <0.5 <1 <1 <1 <1 1 1.5 V <0.5 <1 <1 <1 <1 1 1.8 V <0.5 <1 <1 <1 <1 <1 2.5 V <0.5 1 <1 <1 <1 <1 3.3 V <0.5 1 <1 <1 <1 <1 Submit Documentation Feedback UNIT µA 9 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS Typical Propagation Delay (A to B) vs Load Capacitance TA = 25°C, VCCA = 1.2 V 6 5 tPD − ns 4 3 2 VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.8 V 1 VCCB = 2.5 V VCCB = 3.3 V 0 0 10 20 30 40 50 60 CL − pF Figure 1. 6 6 5 5 4 4 tPHL − ns tPLH − ns Typical Propagation Delay (A to B) vs Load Capacitance TA = 25°C, VCCA = 1.5 V 3 2 3 VCCB = 1.2 V 2 VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.5 V VCCB = 1.8 V VCCB = 1.8 V 1 1 VCCB = 2.5 V VCCB = 2.5 V VCCB = 3.3 V VCCB = 3.3 V 0 0 0 10 10 20 30 40 50 60 0 10 20 30 CL − pF CL − pF Figure 2. Figure 3. Submit Documentation Feedback 40 50 60 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS (continued) Typical Propagation Delay (A to B) vs Load Capacitance TA = 25°C, VCCA = 1.8 V 6 6 5 VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.5 V 5 VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V 4 tPHL − ns 4 tPLH − ns VCCB = 1.2 V 3 3 2 2 1 1 0 0 0 10 20 30 40 50 60 0 10 20 CL − pF 30 40 50 60 CL − pF Figure 4. Figure 5. Typical Propagation Delay (A to B) vs Load Capacitance TA = 25°C, VCCA = 2.5 V 6 6 5 VCCB = 1.2 V VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.5 V 5 VCCB = 1.8 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 2.5 V VCCB = 3.3 V 4 VCCB = 3.3 V tPHL − ns tPLH − ns 4 3 3 2 2 1 1 0 0 0 10 20 30 40 50 60 0 CL − pF 10 20 30 40 50 60 CL − pF Figure 6. Figure 7. Submit Documentation Feedback 11 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS (continued) Typical Propagation Delay (A to B) vs Load Capacitance TA = 25°C, VCCA = 3.3 V 6 6 5 VCCB = 1.2 V VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.5 V 5 VCCB = 1.8 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 2.5 V VCCB = 3.3 V 3 3 2 2 1 1 0 0 0 12 VCCB = 3.3 V 4 tPHL − ns tPLH − ns 4 10 20 30 40 50 60 0 10 20 30 CL − pF CL − pF Figure 8. Figure 9. Submit Documentation Feedback 40 50 60 SN74AVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES565G – APRIL 2004 – REVISED MARCH 2007 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 1.2 V 1.5 V ± 0.1 V 1.8 V ± 0.15 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V CL RL VTP 15 pF 15 pF 15 pF 15 pF 15 pF 2 kΩ 2 kΩ 2 kΩ 2 kΩ 2 kΩ 0.1 V 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 VCCO VCCI Input VCCI/2 VCCI/2 0V tPLH Output tPHL VOH VCCO/2 VOL VCCO/2 tPLZ Output Waveform 1 S1 at 2 × VCCO (see Note B) Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VCCO/2 VOL + VTP VOL tPZH 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: PRRv10 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 10. Load Circuit and Voltage Waveforms Submit Documentation Feedback 13 PACKAGE OPTION ADDENDUM www.ti.com 26-Apr-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty 74AVCH8T245DGVRE4 ACTIVE TVSOP DGV 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 74AVCH8T245PWRE4 ACTIVE TSSOP PW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 74AVCH8T245RHLRG4 ACTIVE QFN RHL 24 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1YEAR SN74AVCH8T245DGVR ACTIVE TVSOP DGV 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AVCH8T245PW ACTIVE TSSOP PW 24 60 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AVCH8T245PWE4 ACTIVE TSSOP PW 24 60 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AVCH8T245PWR ACTIVE TSSOP PW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AVCH8T245RHLR ACTIVE QFN RHL 24 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1YEAR Lead/Ball Finish MSL Peak Temp (3) (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), Pb-Free (RoHS Exempt), 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. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1 MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°–8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side. Falls within JEDEC: 24/48 Pins – MO-153 14/16/20/56 Pins – MO-194 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064/F 01/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Amplifiers amplifier.ti.com Audio www.ti.com/audio Data Converters dataconverter.ti.com Automotive www.ti.com/automotive DSP dsp.ti.com Broadband www.ti.com/broadband Interface interface.ti.com Digital Control www.ti.com/digitalcontrol Logic logic.ti.com Military www.ti.com/military Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork Microcontrollers microcontroller.ti.com Security www.ti.com/security Low Power Wireless www.ti.com/lpw Telephony www.ti.com/telephony Mailing Address: Video & Imaging www.ti.com/video Wireless www.ti.com/wireless Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright © 2007, Texas Instruments Incorporated