74VHCT540A Datasheet PDF - Fairchild Semiconductor
| Part Number | 74VHCT540A | |
| Description | Octal Buffer/Line Driver with 3-STATE Outputs | |
| Manufacturers | Fairchild Semiconductor | |
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June 1997
Revised April 1999
74VHCT540A
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The VHCT540A is an advanced high-speed CMOS device
fabricated with silicon gate CMOS technology. It achieves
the high-speed operation similar to equivalent Bipolar
Schottky TTL while maintaining the CMOS low power dissi-
pation.
The VHCT540A is an octal buffer/line driver designed to be
employed as memory and address drivers, clock drivers
and bus oriented transmitter/receivers.
This device is similar in function to the VHCT240A while
providing flow-through architecture (inputs on opposite side
from outputs). This pinout arrangement makes this device
especially useful as an output port for microprocessors,
allowing ease of layout and greater PC board density.
Protection circuits ensure that 0V to 7V can be applied to
the input and output (Note 1) pins without regard to the
supply voltage. This device can be used to interface 3V to
5V systems and two supply systems such as battery
backup. This circuit prevents device destruction due to mis-
matched supply and input voltages.
Note 1: Outputs in OFF-STATE
Features
s High Speed: tPD = 5.4 ns (typ) at VCC = 5V
s Low Power Dissipation: ICC = 4 µA (max) at TA = 25°C
s Power down protection is provided on all inputs and
outputs
s Pin and function compatible with 74HCT540
Ordering Code:
Order Number Package Number
Package Dissipation
74VHCT540AM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74VHCT540ASJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHCT540AMTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHCT540AN
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
Description
OE1, OE2
I0 - I7
O0 - O7
3-STATE Output Enable Inputs
Inputs
3-STATE Outputs
© 1999 Fairchild Semiconductor Corporation DS500012.prf
Truth Table
OE1
L
H
X
L
H = HIGH Voltage Level
L = LOW Voltage Level
Inputs
OE2
I
Outputs
LH
L
XX
Z
HX
Z
LL
H
X = Immaterial
Z = High Impedance
www.fairchildsemi.com
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package Number MTC20
5 www.fairchildsemi.com
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for 74VHCT540A electronic component. |
| Information | Total 6 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ 74VHCT540A.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| 74VHCT540A | The function is Octal Buffer/Line Driver with 3-STATE Outputs. Fairchild Semiconductor | |
| 74VHCT540AM | The function is Octal Buffer/Line Driver with 3-STATE Outputs. Fairchild Semiconductor | |
| 74VHCT540AMTC | The function is Octal Buffer/Line Driver with 3-STATE Outputs. Fairchild Semiconductor | |
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