SN54AHC16541, SN74AHC16541 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS332F – MARCH 1996 – REVISED JANUARY 2000 D D D D D D D SN54AHC16541 . . . WD PACKAGE SN74AHC16541 . . . DGG, DGV, OR DL PACKAGE (TOP VIEW) Members of the Texas Instruments Widebus Family EPIC (Enhanced-Performance Implanted CMOS) Process Operating Range 2-V to 5.5-V VCC Distributed VCC and GND Pins Minimize High-Speed Switching Noise Flow-Through Architecture Optimizes PCB Layout Latch-Up Performance Exceeds 250 mA Per JESD 17 Package Options Include Plastic Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings 1OE1 1Y1 1Y2 GND 1Y3 1Y4 VCC 1Y5 1Y6 GND 1Y7 1Y8 2Y1 2Y2 GND 2Y3 2Y4 VCC 2Y5 2Y6 GND 2Y7 2Y8 2OE1 description The ’AHC16541 devices are noninverting 16-bit buffers composed of two 8-bit sections with separate output-enable signals. For either 8-bit buffer section, the two output-enable (1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 8-bit buffer section are in the high-impedance state. 1 48 2 47 3 46 4 45 5 44 6 43 7 42 8 41 9 40 10 39 11 38 12 37 13 36 14 35 15 34 16 33 17 32 18 31 19 30 20 29 21 28 22 27 23 26 24 25 1OE2 1A1 1A2 GND 1A3 1A4 VCC 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCC 2A5 2A6 GND 2A7 2A8 2OE2 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. The SN54AHC16541 is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74AHC16541 is characterized for operation from –40°C to 85°C. FUNCTION TABLE (each 8-bit buffer/driver) INPUTS OE1 OE2 A OUTPUT Y L L L L L L H H H X X Z X H 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 and Widebus are trademarks of Texas Instruments Incorporated. Copyright 2000, 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 SN54AHC16541, SN74AHC16541 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS332F – MARCH 1996 – REVISED JANUARY 2000 logic symbol† 1OE1 1 & EN1 48 1OE2 2OE1 2OE2 1A1 1A2 1A3 1A4 1A5 1A6 1A7 1A8 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2A8 24 & EN2 25 47 1 2 1 46 3 44 5 43 6 41 8 40 9 38 11 37 12 36 1 13 2 35 14 33 16 32 17 30 19 29 20 27 22 26 23 1Y1 1Y2 1Y3 1Y4 1Y5 1Y6 1Y7 1Y8 2Y1 2Y2 2Y3 2Y4 2Y5 2Y6 2Y7 2Y8 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram (positive logic) 1OE1 1OE2 1A1 1 2OE1 48 47 2OE2 2 1Y1 2A1 24 25 36 To Seven Other Channels 2 POST OFFICE BOX 655303 13 2Y1 To Seven Other Channels • DALLAS, TEXAS 75265 SN54AHC16541, SN74AHC16541 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS332F – MARCH 1996 – REVISED JANUARY 2000 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 Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA Continuous current through each VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±75 mA Package thermal impedance, θJA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°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 voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51. recommended operating conditions (see Note 3) SN54AHC16541 VCC VIH Supply voltage High-level input voltage VCC = 2 V VCC = 3 V VCC = 5.5 V VCC = 2 V VIL VI VO IOH Low-level input voltage Output voltage VCC = 2 V VCC = 3.3 V ± 0.3 V VCC = 5 V ± 0.5 V VCC = 2 V IOL ∆t/∆v Low-level output current Input transition rise or fall rate MAX 2 5.5 1.5 VCC = 3.3 V ± 0.3 V VCC = 5 V ± 0.5 V VCC = 3.3 V ± 0.3 V VCC = 5 V ± 0.5 V SN74AHC16541 MIN MAX 2 5.5 UNIT V 1.5 2.1 2.1 3.85 3.85 0.5 VCC = 3 V VCC = 5.5 V Input voltage High-level output current MIN V 0.5 0.9 0.9 1.65 1.65 V 0 5.5 0 5.5 V 0 VCC –50 0 VCC –50 mA –4 –4 –8 –8 50 50 4 4 8 8 100 100 20 20 V mA mA mA ns/V 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. 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 SN54AHC16541, SN74AHC16541 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS332F – MARCH 1996 – REVISED JANUARY 2000 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –50 mA VOH IOH = –4 mA IOH = –8 mA IOL = 50 mA VOL IOL = 4 mA IOL = 8 mA II IOZ ICC Ci VI = VCC or GND VO = VCC or GND, VI (OE) = VIL or VIH VI = VCC or GND, VI = VCC or GND MIN TA = 25°C TYP MAX 2V 1.9 2 1.9 1.9 3V 2.9 3 2.9 2.9 4.5 V 4.4 4.5 4.4 4.4 3V 2.58 2.48 2.48 4.5 V 3.94 3.8 VCC IO = 0 SN54AHC16541 MIN MAX SN74AHC16541 MIN MAX UNIT V 3.8 2V 0.1 0.1 0.1 0.1 3V 0.1 0.1 4.5 V 0.1 0.1 0.1 3V 0.36 0.5 0.44 V 4.5 V 0.36 0.5 0.44 0 V to 5.5 V ±0.1 ±1* ±1 mA 5.5 V ±0.25 ±2.5 ±2.5 mA 4 40 40 mA 10 pF 5.5 V 5V 2 10 Co VO = VCC or GND 5V 3 * On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. pF switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE tPLH tPHL A Y CL = 15 pF tPZH tPZL OE Y CL = 15 pF tPHZ tPLZ OE Y CL = 15 pF tPLH tPHL A Y CL = 50 pF tPZH tPZL OE Y CL = 50 pF tPHZ tPLZ OE Y CL = 50 pF tsk(o) MIN TA = 25°C TYP MAX MAX MIN MAX 8.4** 1** 10** 1 10 5** 8.4** 1** 10** 1 10 6** 10.6** 1** 12.5** 1 12.5 6** 10.6** 1** 12.5** 1 12.5 7** 11.5** 1** 12.5** 1 12.5 7** 11.5** 1** 12.5** 1 12.5 7.5 11.9 1 13.5 1 13.5 7.5 11.9 1 13.5 1 13.5 8 14.1 1 16 1 16 8 14.1 1 16 1 16 9 14 1 16 1 16 9 14 1 16 1 16 CL = 50 pF 1.5*** 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 SN74AHC16541 MIN 5** ** On products compliant to MIL-PRF-38535, this parameter is not production tested. *** On products compliant to MIL-PRF-38535, this parameter does not apply. 4 SN54AHC16541 • DALLAS, TEXAS 75265 1.5 UNIT ns ns ns ns ns ns ns SN54AHC16541, SN74AHC16541 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS332F – MARCH 1996 – REVISED JANUARY 2000 switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE tPLH tPHL A Y CL = 15 pF tPZH tPZL OE Y CL = 15 pF tPHZ tPLZ OE Y CL = 15 pF tPLH tPHL A Y CL = 50 pF tPZH tPZL OE Y CL = 50 pF tPHZ tPLZ OE Y CL = 50 pF tsk(o) MIN TA = 25°C TYP MAX SN54AHC16541 SN74AHC16541 MIN MAX MIN MAX 3.5* 6* 1* 7* 1 6.5 3.5* 6* 1* 7* 1 6.5 4.7* 7.3* 1* 8.5* 1 8.5 4.7* 7.3* 1* 8.5* 1 8.5 5* 7.2* 1* 8.5* 1 8.5 5* 7.2* 1* 8.5* 1 8.5 5 8 1 9 1 8.5 5 8 1 9 1 8.5 6.2 9.3 1 10.5 1 10.5 6.2 9.3 1 10.5 1 10.5 6 9.2 1 10.5 1 10.5 6 9.2 1 10.5 1 10.5 1** CL = 50 pF 1 UNIT ns ns ns ns ns ns ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. ** On products compliant to MIL-PRF-38535, this parameter does not apply. noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4) SN74AHC16541 PARAMETER MIN TYP MAX UNIT VOL(P) VOL(V) Quiet output, maximum dynamic VOL 0.7 V Quiet output, minimum dynamic VOL –0.3 V VOH(V) VIH(D) Quiet output, minimum dynamic VOH 4.7 V High-level dynamic input voltage 3.5 VIL(D) Low-level dynamic input voltage NOTE 4: Characteristics are for surface-mount packages only. V 1.5 V TYP UNIT operating characteristics, VCC = 5 V, TA = 25°C PARAMETER Cpd TEST CONDITIONS Power dissipation capacitance No load, f = 1 MHz 12 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 5 SN54AHC16541, SN74AHC16541 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS332F – MARCH 1996 – REVISED JANUARY 2000 PARAMETER MEASUREMENT INFORMATION RL = 1 kΩ From Output Under Test Test Point From Output Under Test S1 VCC Open TEST GND CL (see Note A) CL (see Note A) S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH 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 tw tsu VCC Input 50% VCC 50% VCC 0V 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 0V tPLH In-Phase Output tPHL 50% VCC tPHL Out-of-Phase Output VOH 50% VCC VOL VCC Output Control Output Waveform 1 S1 at VCC (see Note B) 50% VCC 0V tPZL VOH 50% VCC VOL tPLZ ≈VCC 50% VCC tPZH tPLH 50% VCC 50% VCC Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS VOL + 0.3 V VOL tPHZ 50% VCC VOH – 0.3 V VOH ≈0 V 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. Figure 1. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. 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