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74LVT244BPW 데이터시트(PDF) 2 Page - NXP Semiconductors |
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74LVT244BPW 데이터시트(HTML) 2 Page - NXP Semiconductors |
2 / 10 page Philips Semiconductors Product specification 74LVT244B 3.3V Octal buffer/line driver (3-State) 2 1998 Nov 12 853-2133 20358 FEATURES • Octal bus interface • 3-State buffers • Speed upgrade of 74LVTH244A • Output capability: +64mA/-32mA • TTL input and output switching levels • Input and output interface capability to systems at 5V supply • Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs • Power-up 3-State • Live insertion/extraction permitted • No bus current loading when output is tied to 5V bus • Latch-up protection exceeds 500mA per JEDEC Std 17 • ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model DESCRIPTION The LVT244B is a high-performance BiCMOS product designed for VCC operation at 3.3V. This device is an octal buffer that is ideal for driving bus lines. The device features two Output Enables (OE1, OE2), each controlling four of the 3-State outputs. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS Tamb = 25°C; GND = 0V TYPICAL UNIT tPLH tPHL Propagation delay nAx to nYx CL = 50pF; VCC = 3.3V 1.9 2.0 ns CIN Input capacitance VI = 0V or 3.0V 4 pF COUT Output capacitance Outputs disabled; VO = 0V or 3.0V 8 pF ICCZ Total supply current Outputs disabled; VCC = 3.6V 0.13 mA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 20-Pin Plastic SOL –40 °C to +85°C 74LVT244B D 74LVT244B D SOT163-1 20-Pin Plastic SSOP Type II –40 °C to +85°C 74LVT244B DB 74LVT244B DB SOT339-1 20-Pin Plastic TSSOP Type I –40 °C to +85°C 74LVT244B PW 7LVT244BPW DH SOT360-1 |
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