Document
INTEGRATED CIRCUITS
74ALVT162241 2.5V/3.3V 16-bit buffer/driver with 30W termination resistors (3-State)
Product specification Supersedes data of 1997 Dec 16 IC23 Data Handbook 1998 Feb 13
Philips Semiconductors
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver with 30W termination resistors (3-State)
74ALVT162241
FEATURES
• 16-bit bus interface • 5V I/O Compatible • 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 • Outputs include series resistance of 30W making external • Live insertion/extraction permitted • 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 termination resistors unnecessary resistors to hold unused inputs
DESCRIPTION
The 74ALVT162241 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 buffer that is ideal for driving bus lines. The device features four Output Enables (1OE, 2OE, 3OE, 4OE), each controlling four of the 3-State outputs. The 74ALVT162241 is designed with 30W series resistance in both High and Low output stages. This design reduces the line noise in applications such as memory address drivers, clock drivers and bus receivers/transmitters. The series termination resistors reduce overshoot and undershoot and are ideal for driving memory arrays.
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN COut ICCZ PARAMETER Propagation delay nAx to nYx Input capacitance nOE Output pin capacitance Total supply current CL = 50pF VI = 0V or VCC VI/O = 0V or VCC Outputs disabled CONDITIONS Tamb = 25°C TYPICAL 2.5V 3.1 2.3 3 9 40 3.3V 2.2 2.0 3 9 70 UNIT ns pF pF µA
ORDERING INFORMATION
PACKAGES 48-Pin Plastic SSOP Type III 48-Pin Plastic TSSOP Type II TEMPERATURE RANGE –40°C to +85°C –40°C to +85°C OUTSIDE NORTH AMERICA 74ALVT162241 DL 74ALVT162241 DGG NORTH AMERICA AV162241 DL AV162241 DGG DWG NUMBER SOT370-1 SOT362-1
LOGIC SYMBOL
47 46 44 43 1 41 40 38 37 48 1A0 1A1 1A2 1A3 1OE 2A0 2A1 2A2 2A3 2OE 2Y0 2Y1 2Y2 2Y3 1Y0 1Y1 1Y2 1Y3 2 3 5 6 36 35 33 32 25 8 9 11 12 30 29 27 26 24 3A0 3A1 3A2 3A3 3OE 3Y0 3Y1 3Y2 3Y3 13
SCHEMATIC OF EACH OUTPUT
VCC VCC 14 16 17
27Ω OUTPUT 27Ω
4A0 4A1 4A2 4A3 4OE
4Y0 4Y1 4Y2 4Y3
19 20 22
SW00007
23
SA00405
1998 Feb 13
2
853-2042 18960
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver with 30W termination resistors (3-State)
74ALVT162241
PIN CONFIGURATION
1OE 1Y0 1Y1 GND 1Y2 1Y3 VCC 2Y0 2Y1 GND 2Y2 2Y3 3Y0 3Y1 GND 3Y2 3Y4 VCC 4Y0 4Y1 GND 4Y2 4Y3 4OE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 2OE 1A0 1A1 GND 1A2 1A3 VCC 2A0 2A1 GND 2A2 2A3 3A0 3A1 GND 3A2 3A3 VCC 4A0 4A1 GND 4A2 4A3 3OE
PIN DESCRIPTION
PIN NUMBER 47, 46, 44, 43, 41, 40, 38, 37, 36, 35, 33, 32, 30, 29, 27, 26 2, 3, 5, 6, 8, 9, 11, 12, 13, 14, 16, 17, 19, 20, 22, 23 1, 48, 25, 24 4, 10, 15, 21, 28, 34, 39, 45 7, 18, 31, 42 SYMBOL 1A0-1A3 2A0-2A3 3A0-3A3 4A0-4A3 1Y0-1Y3 2Y0-2Y3 3Y0-3Y3 4Y0-4Y3 1OE, 2OE, 3OE, 4OE GND VCC NAME AND FUNCTION Data inputs
Data outputs
Output enables Ground (0V) Positive supply voltage
FUNCTION TABLE
Inputs 1OE, 4OE 1Ax, 4Ax L H L L H X Inputs 2OE, 3OE 2Ax, 3Ax H H H L L X
H = High voltage level L = Low voltage level X = Don’t care Z = High Impedance “off ” state
Outputs 1Yx, 4Yx H L Z Outputs 2Yx, 3Yx H L Z
SA00407
LOGIC SYMBOL (IEEE/IEC)
1OE 2OE 3OE 4OE 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 3A1 3A2 3A3 3A4 4A1 4A2 4A3 4A4 1 48 25 24 47 46 44 43 41 1 40 38 37 36 35 33 32 30 29 27 26 1 4∇ 1 3∇ 2∇ EN1 EN2 EN3 EN4 1 1∇ 2 3 5 6 8 9 11 12 13 14 16 17 19 20 22 23 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 3Y1 3Y2 3Y3 3Y4 4Y1 4Y2 4Y3 4Y4
SA00406
1998 Feb 13
3
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver with 30W termination resistors (3-State)
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL VCC IIK VI IOK VOUT IOUT Tstg PARAMETER DC supply voltage DC input diode current DC input voltage3 DC output diode current DC output voltage3 DC output out ut current Storage temperature range VO < 0 Output in Off or High state Output in Low state Output in High state VI < 0 CONDITIONS
74ALVT162241
RATING -0.5 to +4.6 -50 -0.5 to +7.0 -50 -0.5 to +7.0 128 -64 -65 to +150
UNIT V mA V mA V 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 c.