SN54LV126A, SN74LV126A QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS SCES131C – MARCH 1998 – REVISED JULY 1998 D D D D D EPIC (Enhanced-Performance Implanted CMOS) Process Typical VOLP (Output Ground Bounce) < 0.8 V at VCC, TA = 25°C Typical VOHV (Output VOH Undershoot) > 2 V at VCC, TA = 25°C Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) Package Options Include Plastic Small-Outline (D, NS), Shrink Small-Outline (DB), Thin Very Small-Outline (DGV), and Thin Shrink Small-Outline (PW) Packages, Ceramic Flat (W) Packages, Chip Carriers (FK), and DIPs (J) SN54LV126A . . . J OR W PACKAGE SN74LV126A . . . D, DB, DGV, NS, OR PW PACKAGE (TOP VIEW) 1OE 1A 1Y 2OE 2A 2Y GND 1 14 2 13 3 12 4 11 5 10 6 9 7 8 VCC 4OE 4A 4Y 3OE 3A 3Y SN54LV126A . . . FK PACKAGE (TOP VIEW) 1A 1OE NC VCC 4OE D 1Y NC 2OE NC 2A description These quadruple bus buffer gates are designed for 2-V to 5.5-V VCC operation. 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 4A NC 4Y NC 3OE 2Y GND NC 3Y 3A The ’LV126A devices feature independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is low. 4 NC – No internal connection To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The SN54LV126A is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74LV126A is characterized for operation from –40°C to 85°C. FUNCTION TABLE (each buffer) INPUTS OE A OUTPUT Y H H H H L L L X Z 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. EPIC is a trademark of Texas Instruments Incorporated. Copyright 1998, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54LV126A, SN74LV126A QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS SCES131C – MARCH 1998 – REVISED JULY 1998 logic symbol† 1OE 1A 2OE 2A 3OE 3A 4OE 4A 1 EN 1 3 2 4 6 5 10 8 9 13 11 12 1Y 2Y 3Y 4Y † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages. logic diagram (positive logic) 1OE 1A 2OE 2A 1 2 3OE 3 1Y 3A 4 5 4OE 6 2Y 4A 10 9 8 3Y 13 12 11 4Y Pin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages. 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 (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Output voltage range, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±70 mA Package thermal impedance, θJA (see Note 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127°C/W DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158°C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170°C/W Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C 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 voltage ratings may be exceeded if the input and output current ratings are observed. 2. This value is limited to 7 V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN54LV126A, SN74LV126A QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS SCES131C – MARCH 1998 – REVISED JULY 1998 recommended operating conditions (see Note 4) SN54LV126A VCC VIH High level input voltage High-level VIL Low level input voltage Low-level VI Input voltage VO IOH IOL ∆t/∆v MAX 2 5.5 Supply voltage VCC = 2 V VCC = 2.3 V to 2.7 V VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V 5.5 VCC × 0.7 VCC × 0.7 VCC × 0.7 VCC × 0.7 0.5 High or low state 0 3-state 0 UNIT V V 0.5 VCC × 0.3 VCC × 0.3 VCC × 0.3 VCC × 0.3 VCC × 0.3 5.5 0 VCC 5.5 VCC × 0.3 5.5 0 0 V V VCC 5.5 V µA VCC = 2 V VCC = 2.3 V to 2.7 V –50 –50 –2 –2 VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V –8 –8 –16 –16 VCC = 2 V VCC = 2.3 V to 2.7 V 50 50 2 2 VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V 8 8 16 VCC = 2.3 V to 2.7 V VCC = 3 V to 3.6 V Input transition rise or fall rate 2 VCC × 0.7 VCC × 0.7 0 Low level output current Low-level MAX 1.5 VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V High level output current High-level MIN 1.5 VCC = 2 V VCC = 2.3 V to 2.7 V Output voltage SN74LV126A MIN mA µA mA 16 0 200 0 200 0 100 0 100 ns/V VCC = 4.5 V to 5.5 V 0 20 0 20 TA Operating free-air temperature –55 125 –40 85 °C NOTE 4: 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. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VOH VOL SN54LV126A TEST CONDITIONS IOH = –50 µA IOH = –2 mA 2 V to 5.5 V IOL = 50 µA IOL = 2 mA ICC Ioff VI = VCC or GND, VI or VO = 0 to 5.5 V Ci VI = VCC or GND TYP IO = 0 SN74LV126A MAX MIN VCC–0.1 2 3V 2.48 2.48 4.5 V 3.8 TYP MAX UNIT V 3.8 2 V to 5.5 V IOL = 8 mA IOL = 16 mA VI = VCC or GND VO = VCC or GND MIN VCC–0.1 2 2.3 V IOH = –8 mA IOH = –16 mA II IOZ VCC 0.1 0.1 2.3 V 0.4 0.4 3V 0.44 0.44 4.5 V 0.55 0.55 5.5 V ±1 ±1 µA 5.5 V ±5 ±5 µA 5.5 V 20 20 µA 5 µA 0V 3.3 V 5 1.6 1.6 V pF PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54LV126A, SN74LV126A QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS SCES131C – MARCH 1998 – REVISED JULY 1998 switching characteristics over recommended operating free-air temperature range, VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) PARAMETER tpd* ten* FROM (INPUT) TO (OUTPUT) A Y LOAD CAPACITANCE MIN TA = 25°C TYP MAX 7.1 CL = 15 pF SN54LV126A SN74LV126A MIN MAX MIN MAX 13 1 15.5 1 15.5 OE Y 7.4 13 1 15.5 1 15.5 tdis* tpd OE Y 5.7 14.7 1 17 1 17 A Y 9.2 16.5 1 18.5 1 18.5 ten tdis OE Y 9.5 16.5 1 18.5 1 18.5 OE Y 8.1 18.2 15 20.5 1 20.5 CL = 50 pF tsk(o)† * On products compliant to MIL-PRF-38535, this parameter is not production tested. † Skew between any two outputs of the same package switching in the same direction 2 UNIT ns ns 2 switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER tpd* ten* FROM (INPUT) TO (OUTPUT) A Y LOAD CAPACITANCE TA = 25°C MIN TYP MAX 5 CL = 15 pF SN54LV126A SN74LV126A MIN MAX MIN MAX 8 1 9.5 1 9.5 OE Y 5.1 8 1 9.5 1 9.5 tdis* tpd OE Y 4.4 9.7 1 11.5 1 11.5 A Y 6.4 11.5 1 13 1 13 ten tdis OE Y 6.6 11.5 1 13 1 13 OE Y 6.1 13.2 1 15 1 15 CL = 50 pF tsk(o)† * On products compliant to MIL-PRF-38535, this parameter is not production tested. † Skew between any two outputs of the same package switching in the same direction 1.5 UNIT ns ns 1.5 switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER tpd* ten* FROM (INPUT) TO (OUTPUT) A Y OE Y tdis* tpd OE A ten tdis OE Y OE Y LOAD CAPACITANCE MIN TA = 25°C TYP MAX SN74LV126A MIN MAX MIN MAX 3.5 5.5 1 6.5 1 6.5 3.6 5.1 1 6 1 6 Y 3.3 6.8 1 8 1 8 Y 4.6 7.5 1 8.5 1 8.5 4.6 7.1 1 8 1 8 4.3 8.8 1 10 1 10 CL = 15 pF CL = 50 pF tsk(o)† * On products compliant to MIL-PRF-38535, this parameter is not production tested. † Skew between any two outputs of the same package switching in the same direction PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. 4 SN54LV126A POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 1 UNIT ns ns SN54LV126A, SN74LV126A QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS SCES131C – MARCH 1998 – REVISED JULY 1998 noise characteristics, VCC = 3.3 V, CL = 50 pF, TA = 25°C (see Note 5) SN74LV126A PARAMETER MIN TYP MAX UNIT VOL(P) Quiet output, maximum dynamic VOL 0.32 0.8 V VOL(V) Quiet output, minimum dynamic VOL –0.23 –0.8 V VOH(V) Quiet output, minimum dynamic VOH 3.06 VIH(D) High-level dynamic input voltage VIL(D) Low-level dynamic input voltage V 2.31 V 0.97 V VCC 3.3 V TYP UNIT 5V 15.9 NOTE 5: Characteristics are for surface-mount packages only. operating characteristics, TA = 25°C PARAMETER Cpd Power dissipation capacitance TEST CONDITIONS Outputs enabled POST OFFICE BOX 655303 CL = 50 pF, pF • DALLAS, TEXAS 75265 f = 10 MHz 14.4 pF 5 SN54LV126A, SN74LV126A QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS SCES131C – MARCH 1998 – REVISED JULY 1998 PARAMETER MEASUREMENT INFORMATION RL = 1 kΩ From Output Under Test Test Point From Output Under Test VCC Open S1 TEST GND S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH CL (see Note A) CL (see Note A) Open Drain Open VCC GND VCC LOAD CIRCUIT FOR 3-STATE AND OPEN-DRAIN OUTPUTS LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS VCC 50% VCC Timing Input 0V tw tsu VCC 50% VCC Input 50% VCC th VCC 50% VCC Data Input 50% VCC 0V 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATION VCC 50% VCC Input 50% VCC tPLH In-Phase Output 50% VCC VOH 50% VCC VOL 50% VCC Output Waveform 2 S1 at GND (see Note B) 50% VCC 0V Output Waveform 1 S1 at VCC (see Note B) tPLH VOH 50% VCC VOL 50% VCC tPZL tPHL tPHL Out-of-Phase Output 0V VCC Output Control tPLZ 50% VCC tPZH VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS ≈ VCC VOL + 0.3 V VOL tPHZ 50% VCC VOH – 0.3 V VOH ≈0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING 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: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns. D. The outputs are measured one at a time with one input transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPHL and tPLH are the same as tpd. Figure 1. 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