M54HC541 RAD-HARD OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 9ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 6mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 54 SERIES 541 SPACE GRADE-1: ESA SCC QUALIFIED 50 krad QUALIFIED, 100 krad AVAILABLE ON REQUEST NO SEL UNDER HIGH LET HEAVY IONS IRRADIATION DEVICE FULLY COMPLIANT WITH SCC-9401-047 DESCRIPTION The 54HC541 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon gate C2MOS technology. The M54HC541 is a non inverting buffer. DILC-20 FPC-20 ORDER CODES PACKAGE FM EM DILC FPC M54HC541D M54HC541K M54HC541D1 M54HC541K1 The 3-STATE control gate operates as a two input AND such that if either G1 and G2 are high, all eight output are in the high impedance state. In order to enhance PC board layout the M54HC541 offer a pinout having inputs and outputs on opposite sides of the package. All inputs are equipped with protection circuits against static discharge and transient excess voltage. PIN CONNECTION May 2004 Rev. 1 1/11 M54HC541 Figure 1: IEC Logic Symbols Figure 2: Input And Output Equivalent Circuit Table 1: Pin Description PIN N° SYMBOL 1, 19 2, 3, 4, 5, 6, 7, 8, 9 18, 17, 16, 15, 14, 13, 12, 11 10 20 G1, G2 A1 to A8 Output Enable Inputs Data Inputs Y1 to Y8 Bus Outputs GND VCC NAME AND FUNCTION Ground (0V) Positive Supply Voltage Table 2: Truth Table INPUT G1 G2 An Yn H X L L X H L L X X H L Z Z H L X : Don’t Care Z : High Impedance 2/11 OUTPUT M54HC541 Table 3: Absolute Maximum Ratings Symbol VCC Parameter Supply Voltage Value Unit -0.5 to +7 V VI DC Input Voltage -0.5 to VCC + 0.5 V VO DC Output Voltage -0.5 to VCC + 0.5 ± 20 V mA IIK DC Input Diode Current IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 35 mA ± 70 mA ICC or IGND DC VCC or Ground Current PD Power Dissipation Tstg Storage Temperature TL Lead Temperature (10 sec) 420 mW -65 to +150 °C 265 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied Table 4: Recommended Operating Conditions Symbol VCC Parameter Supply Voltage Value Unit 2 to 6 V V VI Input Voltage 0 to VCC VO Output Voltage 0 to VCC V Top Operating Temperature -55 to 125 °C VCC = 2.0V 0 to 1000 ns VCC = 4.5V 0 to 500 ns VCC = 6.0V 0 to 400 ns Input Rise and Fall Time tr, tf 3/11 M54HC541 Table 5: DC Specifications Test Condition Symbol VIH VIL VOH VOL II IOZ ICC 4/11 Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Input Leakage Current High Impedance Output Leakage Current Quiescent Supply Current Value TA = 25°C VCC (V) Min. 2.0 4.5 6.0 2.0 4.5 6.0 Typ. Max. 1.5 3.15 4.2 -40 to 85°C -55 to 125°C Min. Min. Max. 1.5 3.15 4.2 0.5 1.35 1.8 Max. 1.5 3.15 4.2 0.5 1.35 1.8 Unit V 0.5 1.35 1.8 2.0 IO=-20 µA 1.9 2.0 1.9 1.9 4.5 IO=-20 µA 4.4 4.5 4.4 4.4 6.0 IO=-20 µA 5.9 6.0 5.9 5.9 4.5 IO=-6.0 mA 4.18 4.31 4.13 4.10 6.0 IO=-7.8 mA 5.68 5.8 5.63 5.60 2.0 IO=20 µA 0.0 0.1 0.1 0.1 4.5 IO=20 µA 0.0 0.1 0.1 0.1 V V 6.0 IO=20 µA 0.0 0.1 0.1 0.1 4.5 IO=6.0 mA 0.17 0.26 0.33 0.40 6.0 IO=7.8 mA 0.18 0.26 0.33 0.40 6.0 VI = VCC or GND ± 0.1 ±1 ±1 µA 6.0 VI = VIH or VIL VO = VCC or GND ± 0.5 ±5 ± 10 µA 6.0 VI = VCC or GND 4 40 80 µA V M54HC541 Table 6: AC Electrical Characteristics (CL = 50 pF, Input tr = tf = 6ns) Test Condition Symbol Parameter tTLH tTHL Output Transition Time tPLH tPHL Propagation Delay Time tPZL tPZH High Impedance Output Enable Time tPLZ tPHZ High Impedance Output Disable Time VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Value TA = 25°C CL (pF) Min. 50 50 150 50 RL = 1 KΩ 150 RL = 1 KΩ 50 RL = 1 KΩ Typ. Max. 25 7 6 40 10 9 56 14 12 47 13 11 61 17 14 52 15 13 60 12 10 85 17 14 115 23 20 110 22 19 135 27 23 110 22 19 -40 to 85°C -55 to 125°C Min. Min. Max. 75 19 13 105 21 18 145 29 25 140 28 24 170 34 29 140 28 24 Unit Max. 90 18 15 130 26 22 175 35 30 165 33 28 205 41 35 165 33 28 ns ns ns ns ns ns Table 7: Capacitive Characteristics Test Condition Symbol Parameter VCC (V) Value TA = 25°C Min. Typ. Max. 10 CIN Input Capacitance 5.0 5 CPD Power Dissipation Capacitance (note 1) 5.0 31 -40 to 85°C -55 to 125°C Min. Min. Max. 10 Unit Max. 10 pF pF 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per circuit) 5/11 M54HC541 Figure 3: Test Circuit TEST SWITCH tPLH, tPHL Open tPZL, tPLZ VCC tPZH, tPHZ GND CL = 50pF/150pF or equivalent (includes jig and probe capacitance) R1 = 1KΩ or equivalent RT = ZOUT of pulse generator (typically 50Ω) Figure 4: Waveform - Propagation Delay Times (f=1MHz; 50% duty cycle) 6/11 M54HC541 Figure 5: Waveform - Output Enable And Disable Times (f=1MHz; 50% duty cycle) 7/11 M54HC541 DILC-20 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 2.1 2.71 0.083 0.107 a1 3.00 3.70 0.118 0.146 a2 0.63 0.88 1.14 0.025 0.035 0.045 B 1.93 2.03 2.23 0.076 0.080 0.088 b 0.40 0.45 0.50 0.016 0.018 0.020 b1 0.20 0.254 0.30 0.008 0.010 0.012 D 25.14 25.40 25.65 0.990 1.000 1.010 E 7.36 7.62 7.87 0.290 0.300 0.310 e 2.54 0.100 e1 22.73 22.86 22.99 0.895 0.900 0.905 e2 7.62 7.87 8.12 0.300 0.310 0.320 F 7.29 7.49 7.70 0.287 0.295 0.303 I 3.86 K 11.30 L 1.14 1.27 0.152 11.56 0.445 1.40 0.045 0.455 0.050 0.055 0016178J 8/11 M54HC541 FPC-20 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 9.98 10.16 10.34 0.393 0.400 0.407 B 9.98 10.16 10.34 0.393 0.400 0.407 C 1.45 1.61 1.78 0.57 0.63 0.070 D 0.10 0.127 0.18 0.004 0.005 0.007 E 11.30 11.43 11.56 0.445 0.450 0.455 F 1.27 G 0.38 H 0.48 0.015 7.24 8.16 0.285 0.320 L 24.46 26.67 0.960 1.050 M 0.45 0.55 0.018 N 0.43 0.050 0.50 7.87 0.017 0.020 0.019 0.022 0.310 O 1.14 1.27 1.40 0.045 0.050 0.055 P 0.10 0.18 0.25 0.004 0.007 0.010 016032F 9/11 M54HC541 Table 8: Revision History Date Revision 14-May-2004 1 10/11 Description of Changes First Release M54HC541 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. 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