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SN74ALVC16240 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
SCAS415A - JANUARY 1993 - REVISED JULY 1995
D D D D D D D
Member of the Texas Instruments Widebus TM Family EPIC TM (Enhanced-Performance Implanted CMOS) Submicron Process Designed to Facilitate Incident-Wave Switching for Line Impedances of 50 or Greater Typical VOLP (Output Ground Bounce) < 0.8 V at VCC = 3.3 V, TA = 25C Typical VOHV (Output VOH Undershoot) > 2 V at VCC = 3.3 V, TA = 25C Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages
DGG OR DL PACKAGE (TOP VIEW)
description
This 16-bit buffer/driver is designed for 2.7-V to 3.6-V VCC operation. The SN74ALVC16240 is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides inverting outputs and symmetrical OE (active-low output-enable) inputs.
17 18 19 20 21 22 23 24
32 31 30 29 28 27 26 25
The SN74ALVC16240 is available in TI's shrink small-outline (DL) and thin shrink small-outline (DGG) packages, which provide twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The SN74ALVC16240 is characterized for operation from - 40C to 85C.
FUNCTION TABLE (each 4-bit buffer) INPUTS OE L L H A H L X OUTPUT Y L H Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC and Widebus are trademarks of Texas Instruments Incorporated.
PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice.
Copyright (c) 1995, Texas Instruments Incorporated
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* DALLAS, TEXAS 75265
1
PRODUCT PREVIEW
1OE 1Y1 1Y2 GND 1Y3 1Y4 VCC 2Y1 2Y2 GND 2Y3 2Y4 3Y1 3Y2 GND 3Y3 3Y4 VCC 4Y1 4Y2 GND 4Y3 4Y4 4OE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
2OE 1A1 1A2 GND 1A3 1A4 VCC 2A1 2A2 GND 2A3 2A4 3A1 3A2 GND 3A3 3A4 VCC 4A1 4A2 GND 4A3 4A4 3OE
SN74ALVC16240 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
SCAS415A - JANUARY 1993 - REVISED JULY 1995
logic symbol
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 40 38 37 36 35 33 32 30 29 27 26 1 4 1 3 1 2 EN1 EN2
logic diagram (positive logic)
1OE 1
1A1 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 3OE 2A4 2A3 2A2 2A1 2OE 1A4 1A3 1A2
47
2
1Y1
46
3
1Y2
44
5
1Y3
43
6
1Y4
48
41
8
2Y1
PRODUCT PREVIEW
40
9
2Y2
38
11
2Y3
37
12
2Y4
25
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
3A1
36
13
3Y1
3A2
35
14
3Y2
3A3
33
16
3Y3
3A4
32
17
3Y4
4OE
24
4A1
30
19
4Y1
4A2
29
20
4Y2
4A3
27
22
4Y3
4A4
26
23
4Y4
2
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
SN74ALVC16240 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
SCAS415A - JANUARY 1993 - REVISED JULY 1995
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to 4.6 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to 4.6 V Output voltage range, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 50 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA Maximum power dissipation at TA = 55C (in still air) (see Note 3): DGG package . . . . . . . . . . . . . . . 0.85 W DL package . . . . . . . . . . . . . . . . . . 1.2 W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to 150C
Stresses beyond those listed under "absolute maximum ratings" 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. NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. This value is limited to 4.6 V maximum. 3. The maximum package power dissipation is calculated using a junction temperature of 150C and a board trace length of 750 mils. For more information, refer to the Package Thermal Considerations application note in the 1994 ABT Advanced BiCMOS Technology Data Book, literature number SCBD002B.
recommended operating conditions (see Note 4)
MIN VCC VIH VIL VI VO IOH IOL t /v Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage High level output current High-level Low-level Low level output current Input transition rise or fall rate VCC = 2.7 V VCC = 3 V VCC = 2.7 V VCC = 3 V 0 - 40 VCC = 2.7 V to 3.6 V VCC = 2.7 V to 3.6 V 2.7 2 0.8 0 0 VCC VCC - 12 - 24 12 24 10 85 MAX 3.6 UNIT V V V V V mA mA ns / V C
TA Operating free-air temperature NOTE 4: Unused control inputs must be held high or low to prevent them from floating.
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
3
PRODUCT PREVIEW
SN74ALVC16240 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
SCAS415A - JANUARY 1993 - REVISED JULY 1995
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER IOH = - 100 A VOH IOH = - 12 mA IOH = - 24 mA IOL = 100 A VOL II II(hold) I(h ld) IOZ ICC Ci Co IOL = 12 mA IOL = 24 mA VI = VCC or GND VI = 0.8 V VI = 2 V VO = VCC or GND VI = VCC or GND, One input at VCC - 0.6 V, VI = VCC or GND VO = VCC or GND IO = 0 Other inputs at VCC or GND TEST CONDITIONS VCC MIN to MAX 2.7 V 3V 3V MIN to MAX 2.7 V 3V 3.6 V 3V 3.6 V 3.6 V 3 V to 3.6 V 3.3 V 3.3 V 75 -75 10 40 750 MIN MAX UNIT VCC - 0.2 2.2 2.4 2 0.2 0.4 0.55 5 A A A A A pF pF V
V
nICC
PRODUCT PREVIEW
For conditions shown as MIN or MAX, use the appropriate values under recommended operating conditions.
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Copyright (c) 1998, Texas Instruments Incorporated

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