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CD74HC540 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. CD74HC540
Description  High Speed CMOS Logic Octal Buffer and Line Drivers, Three-State
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD74HC540 Datasheet(HTML) 1 Page - Texas Instruments

   
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Data sheet acquired from Harris Semiconductor
SCHS189
Features
• CD74HC540, CD74HCT540 . . . . . . . . . . . . . . . Inverting
• CD74HC541, CD74HCT541 . . . . . . . . . . . . . .Non-Inverting
• Buffered Inputs
• Three-State Outputs
• Bus Line Driving Capability
• Typical Propagation Delay = 9ns at VCC = 5V,
CL = 15pF, TA = 25
oC
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC
at VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
Description
The Harris CD74HC540 and CD74HCT540 are Inverting
Octal Buffers and Line Drivers with Three-State Outputs and
the capability to drive 15 LSTTL loads. The Harris
CD74HC541 and CD74HCT541 are Non-Inverting Octal Buff-
ers and Line Drivers with Three-State Outputs that can drive
15 LSTTL loads. The Output Enables (OE1) and (OE2) con-
trol the Three-State Outputs. If either OE1 or OE2 is HIGH the
outputs will be in the high impedance state. For data output
OE1 and OE2 both must be LOW.
Ordering Information
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG.
NO.
CD74HC540E
-55 to 125
20 Ld PDIP
E20.3
CD74HCT540E
-55 to 125
20 Ld PDIP
E20.3
CD74HC541E
-55 to 125
20 Ld PDIP
E20.3
CD74HCT541E
-55 to 125
20 Ld PDIP
E20.3
CD74HC540M
-55 to 125
20 Ld SOIC
M20.3
CD74HCT540M
-55 to 125
20 Ld SOIC
M20.3
CD74HC541M
-55 to 125
20 Ld SOIC
M20.3
CD74HCT541M
-55 to 125
20 Ld SOIC
M20.3
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all
electrical specifications. Please contact your local sales office or
Harris customer service for ordering information.
Pinouts
CD74HC540, CD74HCT540
(PDIP, SOIC)
TOP VIEW
CD74HC541, CD74HCT541
(PDIP, SOIC)
TOP VIEW
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
OE
A0
A1
A2
A3
A4
A6
A5
A7
GND
VCC
Y0
Y1
Y2
OE2
Y3
Y4
Y5
Y6
Y7
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
OE1
A0
A1
A2
A3
A4
A6
A5
A7
GND
VCC
Y0
Y1
Y2
OE2
Y3
Y4
Y5
Y6
Y7
January 1998
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1998
File Number
1659.2
CD74HC540, CD74HCT540,
CD74HC541, CD74HCT541
High Speed CMOS Logic
Octal Buffer and Line Drivers, Three-State
[ /Title
(CD74
HC540
,
CD74
HCT54
0,
CD74
HC541
,
CD74
HCT54


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