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74LVT2244 Dataheets PDF



Part Number 74LVT2244
Manufacturers NXP
Logo NXP
Description 3.3V Octal buffer/line driver
Datasheet 74LVT2244 Datasheet74LVT2244 Datasheet (PDF)

INTEGRATED CIRCUITS 74LVT2244 3.3V Octal buffer/line driver with 30Ω series termination resistors (3-State) Product specification Supersedes data of 1996 Aug 28 IC23 Data Handbook 1998 Feb 19 Philips Semiconductors Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30Ω series termination resistors (3-State) 74LVT2244 FEATURES • Octal bus interface • 3-State buffers • Output capability: +12mA/-12mA • TTL input and output switching levels • Input and output int.

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INTEGRATED CIRCUITS 74LVT2244 3.3V Octal buffer/line driver with 30Ω series termination resistors (3-State) Product specification Supersedes data of 1996 Aug 28 IC23 Data Handbook 1998 Feb 19 Philips Semiconductors Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30Ω series termination resistors (3-State) 74LVT2244 FEATURES • Octal 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 • Power-up 3-State • Live insertion/extraction permitted • 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 • Outputs include series resistance of 30Ω, making external termination resistors unnecessary. and 200V per Machine Model resistors to hold unused inputs DESCRIPTION The LVT2244 is a high-performance BiCMOS product designed for VCC operation at 3.3V. This device is an octal buffer that is ideal for driving bus lines. The device features two Output Enables (OE1, OE2), each controlling four of the 3-State outputs. The 74LVT2244 is designed with 30Ω series resistance in both the High and Low states of the output. This design reduces the line noise in applications such as memory address drivers, clock drivers and bus receivers/transmitters. QUICK REFERENCE DATA SYMBOL tPLH tPHL CIN COUT ICCZ PARAMETER Propagation delay nAx to nYx Input capacitance Output capacitance Total supply current CONDITIONS Tamb = 25°C; GND = 0V CL = 50pF; VCC = 3.3V VI = 0V or 3.0V Outputs disabled; VO = 0V or 3.0V Outputs disabled; VCC = 3.6V TYPICAL 2.9 2.9 4 7 0.13 UNIT ns pF pF mA ORDERING INFORMATION PACKAGES 20-Pin Plastic SOL 20-Pin Plastic SSOP Type II 20-Pin Plastic TSSOP Type I TEMPERATURE RANGE –40°C to +85°C –40°C to +85°C –40°C to +85°C OUTSIDE NORTH AMERICA 74LVT2244 D 74LVT2244 DB 74LVT2244 PW NORTH AMERICA 74LVT2244 D 74LVT2244 DB 7LVT2244PW DH DWG NUMBER SOT163-1 SOT339-1 SOT360-1 PIN CONFIGURATION PIN DESCRIPTION PIN NUMBER 2, 4, 6, 8 11. 13, 15, 17 SYMBOL 1A0 – 1A3 2A0 – 2A3 1Y0 – 1Y3 2Y0 – 2Y3 1OE, 2OE GND VCC NAME AND FUNCTION Data inputs Data inputs Data outputs Data outputs Output enables Ground (0V) Positive supply voltage 1OE 1A0 2Y3 1A1 2Y2 1A2 2Y1 1A3 2Y0 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VCC 2OE 1Y0 2A3 1Y1 2A2 1Y2 2A1 1Y3 2A0 18, 16, 14, 12 9, 7, 5, 3 1, 19 10 20 GND 10 SV00010 1998 Feb 19 2 853-1867 18985 Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30Ω series termination resistors (3-State) 74LVT2244 LOGIC SYMBOL LOGIC SYMBOL (IEEE/IEC) 2 1A0 4 1A1 6 8 1A2 1A3 1Y0 1Y1 1Y2 1Y3 18 16 1 EN 2 14 12 4 6 8 18 16 14 12 1 1OE 11 13 15 17 19 2A0 2A1 2A2 2A3 2OE 2Y0 2Y1 2Y2 2Y3 9 7 19 EN 11 5 13 3 15 17 9 7 5 3 SV00011 SV00012 FUNCTION TABLE INPUTS nOE1 L L H H L X Z = High voltage level = Low voltage level = Don’t care = High impedance “off ” state nAx L H X OUTPUTS nYx L H Z SCHEMATIC OF EACH OUTPUT VCC VCC 22Ω OUTPUT 20Ω SW00202 ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL VCC VI VOUT IOUT IIK IOK Tstg PARAMETER DC supply voltage DC input voltage3 DC output voltage3 DC output out ut current DC input diode current DC output diode current Storage temperature range Output in Off or High state Output in Low state Output in High state VI < 0 VO < 0 CONDITIONS RATING –0.5 to +4.6 –0.5 to +7.0 –0.5 to +7.0 128 –64 –50 –50 –65 to 150 UNIT V V V mA mA mA °C NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 1998 Feb 19 3 Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30Ω series termination resistors (3-State) 74LVT2244 RECOMMENDED OPERATING CONDITIONS SYMBOL VCC VI VIH VIL IOH IOL ∆t/∆v Tamb DC supply voltage Input voltage High-level input voltage Low-level Input voltage High-level output current Low-level output current Input transition rise or fall rate; outputs enabled Operating free-air temperature range –40 PARAMETER LIMITS MIN 2.7 0 2.0 0.8 –12 12 10 +85 MAX 3.6 5.5 UNIT V V V V mA mA ns/V °C DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL VIK VOH VOL PARAMETER Input clamp voltage High-level output voltage Low-l.


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