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74LVT623 데이터시트(PDF) 2 Page - NXP Semiconductors |
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2 / 10 page Philips Semiconductors Product specification 74LVT623 3.3 V octal transceiver with dual enable (3-State) 2 1999 Jul 09 853–2164 21957 FEATURES • Separate controls for data flow in each direction • Output capability: +64 mA/–32 mA • TTL input and output switching levels • Input and output interface capability to systems at 5 V supply • Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs • Live insertion/extraction permitted • No bus current loading when output is tied to 5 V bus • Power-up 3-State • Power-up reset • Latch-up protection exceeds 500 mA per JEDEC Std 17 • ESD protection exceeds 2000 V per MIL STD 883 Method 3015 and 200 V per Machine Model DESCRIPTION The 74LVT623 is a high-performance BiCMOS product designed for VCC operation at 3.3 V. The 74LVT623 device is an octal transceiver featuring non–inverting 3-State bus compatible outputs in both send and receive directions. The 74LVT623 is designed for asynchronous two-way communication between data buses. The control function implementation allows for maximum flexibility in timing. This device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic levels at the Enable inputs (OEBA and OEAB). The Enable inputs can be used to disable the device so that the buses are effectively isolated. Control of data flow from B to A is similar, but using the EBA, LEBA, and OEBA inputs. 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 = 3.3 V 2.3 2.5 ns CIN Input capacitance VI = 0 V or 3.0 V 4 pF CI/O I/O capacitance Outputs disabled; VI/O = 0 V or 3.0 V 7 pF ICCZ Total supply current Outputs disabled; VCC = 3.6 V 0.13 mA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 24-Pin Plastic SOL –40 °C to +85°C 74LVT623 D 74LVT623 D SOT137-1 24-Pin Plastic SSOP Type II –40 °C to +85°C 74LVT623 DB 74LVT623 DB SOT340-1 24-Pin Plastic TSSOP Type I –40 °C to +85°C 74LVT623 PW 74LVT623PW DH SOT355-1 PIN CONFIGURATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SA00189 OEAB A0 A1 A2 A3 A4 A5 A6 A7 GND VCC OEBA B0 B1 B2 B3 B4 B5 B6 B7 LOGIC SYMBOL OEBA 19 SA00195 OEAB A0 A1 A2 A3 A4 A5 A6 A7 1 2 3 4 5 6 7 8 9 B0 B1 B1 B3 B4 B5 B6 B7 18 17 16 15 14 13 12 11 |
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