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74ALVC16245DGG 数据表(PDF) 2 Page - NXP Semiconductors |
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74ALVC16245DGG 数据表(HTML) 2 Page - NXP Semiconductors |
2 / 10 page Philips Semiconductors Product specification 74ALVC16245/ 74ALVCH16245 16-bit bus transceiver with direction pin (3-State) 2 1998 Jun 29 853-2083 19638 FEATURES • Wide supply voltage range of 1.2V to 3.6V • Complies with JEDEC standard no. 8-1A • CMOS low power consumption • MULTIBYTETM flow-through standard pin-out architecture • Low inductance multiple V CC and ground pins for minimum noise and ground bounce • Direct interface with TTL levels • All data inputs have bus hold (74ALVCH16245 only) • Output drive capability 50Ω transmission lines @ 85°C • Current drive ±24 mA at 3.0 V DESCRIPTION The 74ALVC16245(74ALVCH16245) is a 16-bit transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. The 74ALVC16245(74ALVCH16245) features two output enable (nOE) inputs for easy cascading and two send/receive (nDIR) inputs for direction control. nOE controls the outputs so that the buses are effectively isolated. This device can be used as two 8-bit transceivers or one 16-bit transceiver. The 74ALVCH16245 has active bus hold circuitry which is provided to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors. The 74ALVC16245 has 5V tolerant inputs. PIN CONFIGURATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 GND VCC1 GND GND VCC1 2A5 2A4 VCC2 2A3 2A2 GND 2A1 2A0 1A7 1A6 GND 1A5 1A4 VCC2 1A3 1A2 GND 1A1 1A0 1OE 21 22 23 24 25 26 27 28 GND 2DIR 2OE 2A7 2A6 GND SW00198 1DIR 1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7 2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7 QUICK REFERENCE DATA GND = 0V; Tamb = 25°C; tr = tf ≤ 2.5ns SYMBOL PARAMETER CONDITIONS TYPICAL UNIT tPHL/tPLH Propagation delay An to Bn; Bn to An VCC = 2.5V, CL = 30pF VCC = 3.3V, CL = 50pF 1.9 ns CI Input capacitance 4.0 pF CI/O Input/output capacitance 8.0 pF C Power dissipation capacitance per buffer V = GND to VCC1 Outputs enabled 29 pF CPD Power dissipation capacitance per buffer VI = GND to VCC1 Outputs disabled 5 pF NOTE: 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi + S (CL × VCC2 × fo) where: fi = input frequency in MHz; CL = output load capacitance in pF; fo = output frequency in MHz; VCC = supply voltage in V; S (CL × VCC2 × fo) = sum of the outputs. ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 48-Pin Plastic SSOP Type III –40 °C to +85°C 74ALVC16245 DL AC16245 DL SOT370-1 48-Pin Plastic TSSOP Type II –40 °C to +85°C 74ALVC16245 DGG AC16245 DGG SOT362-1 48-Pin Plastic SSOP Type III –40 °C to +85°C 74ALVCH16245 DL ACH16245 DL SOT370-1 48-Pin Plastic TSSOP Type II –40 °C to +85°C 74ALVCH16245 DGG ACH16245 DGG SOT362-1 |
类似零件编号 - 74ALVC16245DGG |
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类似说明 - 74ALVC16245DGG |
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