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74ALVT16646 Datenblatt(PDF) 2 Page - NXP Semiconductors |
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74ALVT16646 Datenblatt(HTML) 2 Page - NXP Semiconductors |
2 / 15 page Philips Semiconductors Product specification 74ALVT16646 2.5V/3.3V 16-bit bus transceiver (3-State) 2 1998 Feb 13 853-1856 18962 FEATURES • 16-bit universal bus interface • 5V I/O Compatible • 3-State buffers • 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 • Live insertion/extraction permitted • No bus current loading when output is tied to 5V bus • Power-up reset • Power-up 3-State • 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 74ALVT16646 is a high-performance BiCMOS product designed for VCC operation at 2.5V or 3.3V with I/O compatibility up to 5V. This device is a 16-bit 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. Data on the A or B bus is clocked into the registers on the Low to High transition of the appropriate clock (CPAB or CPBA). The select-control (SAB and SBA) inputs can multiplex stored and real-time (transparent mode data). QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS TYPICAL UNIT SYMBOL PARAMETER Tamb = 25°C 2.5V 3.3V UNIT tPLH tPHL Propagation delay nAx to nBx or nBx to nAx CL = 50pF 2.2 2.3 1.7 1.8 ns CIN Input capacitance DIR, OE VI = 0V or VCC 3 3 pF CI/O I/O pin capacitance VI/O = 0V or VCC 9 9 pF ICCZ Total supply current Outputs disabled 40 70 µA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 56-Pin Plastic SSOP Type III –40 °C to +85°C 74ALVT166646 DL AV16646 DL SOT371-1 56-Pin Plastic TSSOP Type II –40 °C to +85°C 74ALVT16646 DGG AV16646 DGG SOT364-1 |
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