16-BIT BUS TRANSCEIVERS

www.DataSheet4U.com SN54ABT162245, SN74ABT162245 16 BIT BUS TRANSCEIVERS WITH 3 STATE OUTPUTS SCBS239F − MARCH 1993 − REVISED JUNE 2004 Widebus  Family D A-Port Outputs Have Equivalent 25-Ω Series Resistors, So No External Resistors Are Required D Typical VOLP (Output Ground Bounce) <1 V at VCC = 5 V, TA = 25°C D Distributed VCC and GND Pins Minimize High-Speed Switching Noise D Ioff Supports Partial-Power-Down Mode Operation D Flow-Through Architecture Optimizes PCB Layout D Latch-Up Performance Exceeds 500 mA Per JESD 17 D ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) D Members of the Texas Instruments SN54ABT162245 . . . WD PACKAGE SN74ABT162245 . . . DGG OR DL PACKAGE (TOP VIEW) description/ordering information The ’ABT162245 devices are 16-bit noninverting 3-state transceivers designed for synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission 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 device so that the buses effectively are isolated. The A-port outputs, which are designed to source or sink up to 12 mA, include equivalent 25-Ω series resistors to reduce overshoot and undershoot. These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. ORDERING INFORMATION TA PACKAGE† Tube −40°C to 85 C −40 C 85°C −55°C to 125°C SSOP − DL TSSOP − DGG CFP − WD Tape and reel Tape and reel Tube ORDERABLE PART NUMBER SN74ABT162245DL SN74ABT162245DLR SN74ABT162245DGGR SNJ54ABT162245WD ABT162245 ABT162245 TOP-SIDE MARKING 1DIR 1B1 1B2 GND 1B3 1B4 VCC 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VCC 2B5 2B6 GND 2B7 2B8 2DIR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1OE 1A1 1A2 GND 1A3 1A4 VCC 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCC 2A5 2A6 GND 2A7 2A8 2OE SNJ54ABT162245WD † 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. Widebus is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. On products compliant to MIL PRF 38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. Copyright  2004, Texas Instruments Incorporated POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 www.DataSheet4U.com SCBS239F − MARCH 1993 − REVISED JUNE 2004 SN54ABT162245, SN74ABT162245 16 BIT BUS TRANSCEIVERS WITH 3 STATE OUTPUTS description/ordering information (continued) To ensure the high-impedance state during power up or power down, OE should 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 L L H DIR L H X OPERATION B data to A bus A data to B bus Isolation logic diagram (positive logic) 1DIR 1 2DIR 48 24 1OE 25 2OE 1A1 47 2A1 36 2 1B1 13 2B1 To Seven Other Channels To Seven Other Channels absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input voltage range, VI (except I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . −0.5 V to 5.5 V Current into any output in the low state, IO: SN54ABT162245 (B port) . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA SN74ABT162245 (B port) . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA SN54/74ABT162245 (A port) . . . . . . . . . . . . . . . . . . . . . . . 30 mA Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −18 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA Package thermal impedance, θJA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 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. NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51−7. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 www.DataSheet4U.com SN54ABT162245, SN74ABT162245 16 BIT BUS TRANSCEIVERS WITH 3 STATE OUTPUTS SCBS239F − MARCH 1993 − REVISED JUNE 2004 recommended operating conditions (see Note 3) SN54ABT162245 MIN VCC VIH VIL VI IOH IOL ∆t/∆v Supply voltage High-level input voltage Low-level input voltage Input voltage B port High-level output current Low-level output current Input transition rise or fall rate A port B port A port Outputs enabled 0 4.5 2 0.8 VCC −24 −3 48 12 10 0 MAX 5.5 SN74ABT162245 MIN 4.5 2 0.8 VCC −32 −12 64 12 10 mA ns/V MAX 5.5 UNIT V V V V mA TA Operating free-air temperature −55 125 −40 85 °C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 www.DataSheet4U.com SCBS239F − MARCH 1993 − REVISED JUNE 2004 SN54ABT162245, SN74ABT162245 16 BIT BUS TRANSCEIVERS WITH 3 STATE OUTPUTS electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK TEST CONDITIONS VCC = 4.5 V, VCC = 5 V, A port VOH B port VCC = 4.5 V VCC = 5 V, VCC = 4.5 V II = −18 mA IOH = −1 mA IOH = −1 mA IOH = −3 mA IOH = −12 mA IOH = −3 mA IOH = −3 mA IOH = −24 mA IOH = −32 mA IOL = 12 mA VCC = 4.5 V IOL = 48 mA IOL = 64 mA 100 Control inputs A or B ports IOZH§ IOZL§ Ioff ICEX IO¶ A port B port VCC = 5.5 V, VCC = 5.5 V, IO = 0, VI = VCC or GND VO = 2.5 V Outputs high Outputs low Outputs disabled VCC = 5.5 V, VCC = 5.5 V, VCC = 0, VCC = 5.5 V, VO = 5.5 V VO = 2.7 V VO = 0.5 V VI or VO ≤ 4.5 V Outputs high −25 −50 −50 −100 VCC = 5.5 V, VI = VCC or GND ±1 ±20 10 −10 ±100 50 −100‡ −180 2 32 2 1 0.05 1.5 3 6 −25 −50 50 −90 −180 2 32 2 2 1 1.5 −25 −50 ±1 ±20 10 −10 ±1 ±20 10 −10 ±100 50 −100 −180 2 32 2 2 0.05 1.5 pF pF mA mA mA µA µA µA µA MIN 3.8 3.3 3.1 2.6* 3 2.5 2* 0.8 0.45 0.55* 0.8 0.45 3 2.5 2 2 0.8 0.45 0.55 mV µA V TA = 25°C TYP† MAX −1.2 2.5 3 3 SN54ABT162245 MIN MAX −1.2 2.5 3 3.1 2.6 3 2.5 V SN74ABT162245 MIN MAX −1.2 UNIT V A port VOL Vhys II B port ICC A or B ports Data inputs ∆ICC# Control inputs Ci Cio VCC = 5.5 V, Outputs enabled One input at 3.4 V, Other inputs at Outputs disabled VCC or GND VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND VI = 2.5 V or 0.5 V VO = 2.5 V or 0.5 V * On products compliant to MIL-PRF-38535, this parameter does not apply. † All typical values are at VCC = 5 V. ‡ This limit applies only to the SN74ABT162245. § The parameters IOZH and IOZL include the input leakage current. ¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second. # This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 www.DataSheet4U.com SN54ABT162245, SN74ABT162245 16 BIT BUS TRANSCEIVERS WITH 3 STATE OUTPUTS SCBS239F − MARCH 1993 − REVISED JUNE 2004 switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN 1 A B OE OE B A B B 1 1 1.5 1 1 2 1.5 1.5 OE OE A A 1.5 2 1.5 TYP 2.2 2.3 2.7 3.1 3.6 3.7 4.4 3.3 4.1 4.3 4.5 3.7 MAX 3.4 3.7 4.1 4.6 5.2 5.4 5.8 4.7 6 6.1 6.1 5.1 SN54ABT162245 MIN 1 1 1 1.5 1 1 2 1.5 1.5 1.5 2 1.5 MAX 4.1 4.4 4.9 5.2 6.4 6.5 6.4 5.6 7.2 7.3 6.8 6.1 SN74ABT162245 MIN 1 1 1 1.5 1 1 2 1.5 1.5 1.5 2 1.5 MAX 3.9 4.2 4.6 5.1 6.3 6.4 6.3 5.2 7.1 7 6.6 5.7 ns ns ns ns ns ns UNIT POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 www.