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74ACT244 Datasheet(PDF) 1 Page - STMicroelectronics |
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74ACT244 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 9 page 74ACT244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) ® February 1999 s HIGH SPEED: tPD = 4.5 ns (TYP.) at VCC =5V s LOW POWER DISSIPATION: ICC =8 µA (MAX.) at TA =25 oC s COMPATIBLE WITH TTL OUTPUTS VIH =2V (MIN), VIL = 0.8V (MAX) 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) = 4.5V to 5.5V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 244 s IMPROVED LATCH-UP IMMUNITY DESCRIPTION The ACT244 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. The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. 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 : 74ACT244B 74ACT244M 74ACT244T M (Micro Package) B (Plastic Package) T (TSSOP Package) 1/9 |
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