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74LVT2245PW 数据表(PDF) 2 Page - NXP Semiconductors |
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74LVT2245PW 数据表(HTML) 2 Page - NXP Semiconductors |
2 / 10 page Philips Semiconductors Product specification 74LVT2245 3.3V Octal transceiver with 30 Ω termination resistors (3-State) 2 1998 Feb 19 853-1828 18985 FEATURES • 30Ω output termination resistors • Octal bidirectional bus interface • 3-State buffers • Output capability: +12mA/-12mA • 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 • Live insertion/extraction permitted • Power-up 3-State • 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 LVT2245 is a high-performance BiCMOS product designed for VCC operation at 3.3V. This device is an octal transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. The control function implementation minimizes external timing requirements. The device features an Output Enable (OE) input for easy cascading and a Direction (DIR) input for direction control. The 74LVT2245 is designed with 30 Ω series resistance in both the High and Low states of the output. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus transceivers/transmitters. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS Tamb = 25°C; GND = 0V TYPICAL UNIT tPLH tPHL Propagation delay An to Bn or Bn to An CL = 50pF; VCC = 3.3V 3.2 3.1 ns CIN Input capacitance DIR, OE VI = 0V or 3.0V 4 pF CI/O I/O pin capacitance Outputs disabled; VI/O = 0V or 3.0V 10 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 SO –40 °C to +85°C 74LVT2245 D 74LVT2245 D SOT163-1 20-Pin Plastic SSOP –40 °C to +85°C 74LVT2245 DB 74LVT2245 DB SOT339-1 20-Pin Plastic TSSOP –40 °C to +85°C 74LVT2245 PW 7LVT2245PW DH SOT360-1 PIN CONFIGURATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DIR A0 A1 A2 A3 A4 A5 A6 A7 GND VCC OE B0 B1 B2 B3 B4 B5 B6 B7 SV00014 LOGIC SYMBOL A0 A1 A2 A3 A4 A5 A6 A7 B0 B1 B2 B3 B4 B5 B6 B7 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 OE 19 DIR 1 SV00016 |
类似零件编号 - 74LVT2245PW |
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类似说明 - 74LVT2245PW |
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