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74VHC541T Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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74VHC541T Scheda tecnica(HTML) 1 Page - STMicroelectronics |
1 / 8 page 74VHC541 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) ® June 1999 s HIGH SPEED: tPD = 3.6 ns (TYP.) at VCC =5V s LOW POWER DISSIPATION: ICC =4 µA (MAX.) at TA =25 oC s HIGH NOISE IMMUNITY: VNIH =VNIL =28% VCC (MIN.) s POWER DOWN PROTECTION ON INPUTS s SYMMETRICAL OUTPUT IMPEDANCE: |IOH|=IOL = 8 mA (MIN) s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 5.5V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 541 s IMPROVED LATCH-UP IMMUNITY s LOW NOISE: VOLP = 0.9V (Max.) DESCRIPTION The VHC541 is an advanced high speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS technology. The 3 STATE control gate operates as a two input AND such that if either G1 and G2 are high, all eight outputs are in the high impedance state. In order to enhance PC board layout, the AC541 offers a pinout having inputs and outputs on opposite sides of the package. Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS ORDER CODES : 74VHC541M 74VHC541T M (Micro Package) T (TSSOP Package) 1/8 |
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