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74AC244 Datasheet(PDF) 1 Page - STMicroelectronics |
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74AC244 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 8 page 74AC244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) April 1997 s HIGH SPEED: tPD = 4 ns (TYP.) at VCC =5V s LOW POWER DISSIPATION: ICC =8 µA (MAX.) at TA =25 oC s HIGH NOISE IMMUNITY: VNIH =VNIL = 28% VCC (MIN.) s 50 Ω TRANSMISSION LINE DRIVING CAPABILITY s SYMMETRICAL OUTPUT IMPEDANCE: |IOH|= IOL =24 mA (MIN) s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 244 s IMPROVED LATCH-UP IMMUNITY DESCRIPTION The AC244 is an advanced CMOS OCTAL BUS BUFFER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS technology. It is ideal for low power applications mantaining high speed operation similar to equivalent Bipolar Schottky TTL. G control output governs four BUS BUFFERs. This device is desibned to be used with 3 state memory address drivers, etc. 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 M (Micro Package) B (Plastic Package) ORDER CODES : 74AC244B 74AC244M 1/8 |
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