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74LVT162245B Datasheet(PDF) 2 Page - NXP Semiconductors |
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74LVT162245B Datasheet(HTML) 2 Page - NXP Semiconductors |
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Philips Semiconductors Product specification 74LVT162245B 3.3V 16-bit transceiver with 30 Ω termination resistors (3-State) 2 1998 Feb 19 853-1766 18989 FEATURES • 16-bit 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 • Outputs include series resistance of 30Ω making external termination resistors unnecessary • 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 • Same part as 74LVT16245B-1 DESCRIPTION The 74LVT162245B is a high-performance BiCMOS product designed for VCC operation at 3.3V. 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 (nOE) input for easy cascading and a Direction (DIR) input for direction control. The 74LVT162245B 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. The 74LVT162245B is the same as the 74LVT16245B-1. The part number has been changed to reflect industry standards. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS Tamb = 25°C TYPICAL UNIT tPLH tPHL Propagation delay nAx to nBx or nBx to nAx CL = 50pF; VCC = 3.3V 2.5 ns CIN Input capacitance DIR, OE VI = 0V or 3.0V 3 pF CI/O I/O pin capacitance VI/O = 0V or 3.0V 9 pF ICCZ Total supply current Outputs disabled; VCC = 3.6V 70 µA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 48-Pin Plastic SSOP Type III –40 °C to +85°C 74LVT162245B DL VT162245B DL SOT370-1 48-Pin Plastic TSSOP Type II –40 °C to +85°C 74LVT162245B DGG VT162245B DGG SOT362-1 PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION 1, 24 nDIR Direction control input 47, 46, 44, 43, 41, 40, 38, 37, 36, 35, 33, 32, 30, 29, 27, 26 nA0 – nA7 Data inputs/outputs (A side) 2, 3, 5, 6, 8, 9, 11, 12, 13, 14, 16, 17, 19, 20, 22, 23 nB0 – nB7 Data inputs/outputs (B side) 25, 48 nOE Output enable input (active-Low) 4, 10, 15, 21, 28, 34, 39, 45 GND Ground (0V) 7, 18, 31, 42 VCC Positive supply voltage LOGIC SYMBOL 2DIR 24 36 35 33 32 30 29 27 26 23 22 20 19 17 16 14 13 2OE 2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7 25 1DIR 1 47 46 44 43 41 40 38 37 12 11 9 8 6 5 3 2 1OE 1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7 48 SA00021 |
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