Instrukcja obsługi Texas Instruments SN74ALVTH16240DL

Texas Instruments Niesklasyfikowane SN74ALVTH16240DL

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SN54ALVTH16240, SN74ALVTH16240
2.5-V/3.3-V 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES138A – JULY 1998 – REVISED JANUARY 1999
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
State-of-the-Art Advanced BiCMOS
Technology (ABT)
Widebus
Design for
2.5-V and 3.3-V Operation and Low Static
Power Dissipation
Support Mixed-Mode Signal Operation (5-V
Input and Output Voltages With 2.3-V to
3.6-V VCC)
Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 3.3 V, TA = 25 C°
High Drive (–24/24 mA at 2.5-V and
–32/64 mA at 3.3-V VCC)
Power O Disables Outputs, Permitting
Live Insertion
High-Impedance State During Power Up
and Power Down Prevents Driver Conict
Use Bus Hold on Data Inputs in Place of
External Pullup/Pulldown Resistors to
Prevent the Bus From Floating
Auto3-State Eliminates Bus Current
Loading When Output Exceeds V CC + 0.5 V
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model; and Exceeds 1000 V
Using Charged-Device Model, Robotic
Method
Flow-Through Architecture Facilitates
Printed Circuit Board Layout
Distributed VCC and GND Pin Conguration
Minimizes High-Speed Switching Noise
Package Options Include Plastic Shrink
Small-Outline (DL), Thin Shrink
Small-Outline (DGG), Thin Very
Small-Outline (DGV) Packages, and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
description
The ’ALVTH16240 devices are 16-bit buers/line drivers designed for 2.5-V or 3.3-V V CC operation, but with
the capability to provide a TTL interface to a 5-V system environment.
These devices are designed specically to improve both the performance and density of 3-state memory
address drivers, clock drivers, and bus-oriented receivers and transmitters.
Copyright 1999, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information current as of publication date. Products conform to
specications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all
parameters.
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.
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48
47
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44
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1OE
1Y1
1Y2
GND
1Y3
1Y4
VCC
2Y1
2Y2
GND
2Y3
2Y4
3Y1
3Y2
GND
3Y3
3Y4
VCC
4Y1
4Y2
GND
4Y3
4Y4
4OE
2OE
1A1
1A2
GND
1A3
1A4
VCC
2A1
2A2
GND
2A3
2A4
3A1
3A2
GND
3A3
3A4
VCC
4A1
4A2
GND
4A3
4A4
3OE
SN54ALVTH16240 . . . WD PACKAGE
SN74ALVTH16240 . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
Widebus is a trademark of Texas Instruments Incorporated.
SN54ALVTH16240, SN74ALVTH16240
2.5-V/3.3-V 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES138A – JULY 1998 – REVISED JANUARY 1999
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description (continued)
The devices can be used as four 4-bit buers, two 8-bit buffers, or one 16-bit buer. The devices provide
inverting outputs and symmetrical active-low output-enable (OE) inputs.
When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to VCC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or oating data inputs at a valid logic level.
The SN54ALVTH16240 is characterized for operation over the full military temperature range of –55°C to
125°C. The SN74ALVTH16240 is characterized for operation from –40 C to 85 C.° °
FUNCTION TABLE
(each 4-bit buer)
INPUTS OUTPUT
OE A Y
L H L
L L H
H X Z
logic symbol†
47
1A1 46
1A2 44
1A3
43
1A4
1Y1
2
1Y2
3
1Y3
5
1Y4
6
41
2A1 40
2A2
38
2A3 37
2A4
2Y1
8
2Y2
9
2Y3
11
2Y4
12
36
3A1
35
3A2 33
3A3
32
3A4
3Y1
13
3Y2
14
3Y3
16
3Y4
17
30
4A1 29
4A2
27
4A3 26
4A4
4Y1
19
4Y2
20
4Y3
22
4Y4
23
EN1
1
EN4
24
1OE
2OE
3OE
4OE
EN2
48
EN3
25
†This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1 1
1 2
1 3
1 4
SN54ALVTH16240, SN74ALVTH16240
2.5-V/3.3-V 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES138A – JULY 1998 – REVISED JANUARY 1999
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram (positive logic)
1OE
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
1
47
46
44
43
2
3
5
6
2OE
2A1
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
48
41
40
38
37
8
9
11
12
3OE
3A1
3A2
3A3
3A4
3Y1
3Y2
3Y3
3Y4
25
36
35
33
32
13
14
16
17
4OE
4A1
4A2
4A3
4A4
4Y1
4Y2
4Y3
4Y4
24
30
29
27
26
19
20
22
23
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 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high-impedance
or power-o state, VO (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, V O (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . .
Output current in the low state, IO : SN54ALVTH16240 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALVTH16240 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current in the high state, IO : SN54ALVTH16240 –48 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALVTH16240 –64 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Note 2): DGG package 89 C/W°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package 93 C/W°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL package 94 C/W°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg –65°C to 150 C°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†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. The package thermal impedance is calculated in accordance with JESD 51.

Specyfikacje produktu

Marka: Texas Instruments
Kategoria: Niesklasyfikowane
Model: SN74ALVTH16240DL

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