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M74HC540RM13TR

P1-P3P4-P6P7-P9P10-P10
1/10August 2001
■ HIGH SPEED:
t
PD
= 9ns (TYP.) at V
CC
= 6V
■ LOW POWER DISSIPATION:
I
CC
= 4µA(MAX.) at T
A
=25°C
■ HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 6mA (MIN)
■ BALANCED PROPAGATION DELAYS:
t
PLH
≅ t
PHL
■ WIDE OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 6V
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 540
DESCRIPTION
The 74HC540 is an advanced high-speed CMOS
OCTAL BUS BUFFER (3-STATE) fabricated with
silicon C
2
MOS technology. The M74HC541 is an
inverting buffer.
The 3-STATE control gate operates as a two input
AND such that if either G1
and G2 are high, all
eight output are in the high impedance state. In
order to enhance PC board layout the M74HC540
offer a pinout having inputs and outputs on
opposite sides of the package.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC540
OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (INVERTED)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE TUBE T & R
DIP M74HC540B1R
SOP M74HC540M1R M74HC540RM13TR
TSSOP M74HC540TTR
TSSOPDIP SOP
Obsolete Product(s) - Obsolete Product(s)
M74HC540
2/10
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
Z : High Impedance
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65
°C
; derate to 300mW by 10mW/
°C
from 65
°C to 85°C
PIN No SYMBOL NAME AND FUNCTION
1, 19 G1
, G2 Output Enable Inputs
2, 3, 4, 5, 6,
7, 8, 9
A1 to A8 Data Inputs
18, 17, 16,
15, 14, 13,
12, 11
Y1
to Y8 Bus Outputs
10 GND Ground (0V)
20 V
CC
Positive Supply Voltage
INPUT OUTPUT
G1
G2 An Yn
HXXZ
XHXZ
LLHL
LLLH
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.5 to +7 V
V
I
DC Input Voltage -0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage -0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
± 20 mA
I
OK
DC Output Diode Current
± 20 mA
I
O
DC Output Current
± 35 mA
I
CC
or I
GND
DC V
CC
or Ground Current
± 70 mA
P
D
Power Dissipation
500(*) mW
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Obsolete Product(s) - Obsolete Product(s)
M74HC540
3/10
RECOMMENDED OPERATING CONDITIONS
DC SPECIFICATIONS
Symbol Parameter Value Unit
V
CC
Supply Voltage
2 to 6 V
V
I
Input Voltage 0 to V
CC
V
V
O
Output Voltage 0 to V
CC
V
T
op
Operating Temperature
-55 to 125 °C
t
r
, t
f
Input Rise and Fall Time V
CC
= 2.0V
0 to 1000 ns
V
CC
= 4.5V
0 to 500 ns
V
CC
= 6.0V
0 to 400 ns
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
V
IH
High Level Input
Voltage
2.0 1.5 1.5 1.5
V4.5 3.15 3.15 3.15
6.0 4.2 4.2 4.2
V
IL
Low Level Input
Voltage
2.0 0.5 0.5 0.5
V4.5 1.35 1.35 1.35
6.0 1.8 1.8 1.8
V
OH
High Level Output
Voltage
2.0
I
O
=-20 µA
1.9 2.0 1.9 1.9
V
4.5
I
O
=-20 µA
4.4 4.5 4.4 4.4
6.0
I
O
=-20 µA
5.9 6.0 5.9 5.9
4.5
I
O
=-6.0 mA
4.18 4.31 4.13 4.10
6.0
I
O
=-7.8 mA
5.68 5.8 5.63 5.60
V
OL
Low Level Output
Voltage
2.0
I
O
=20 µA
0.0 0.1 0.1 0.1
V
4.5
I
O
=20 µA
0.0 0.1 0.1 0.1
6.0
I
O
=20 µA
0.0 0.1 0.1 0.1
4.5
I
O
=6.0 mA
0.17 0.26 0.33 0.40
6.0
I
O
=7.8 mA
0.18 0.26 0.33 0.40
I
I
Input Leakage
Current
6.0
V
I
= V
CC
or GND
± 0.1 ± 1 ± 1 µA
I
OZ
High Impedance
Output Leakage
Current
6.0
V
I
= V
IH
or V
IL
V
O
= V
CC
or GND
± 0.5 ± 5 ± 10 µA
I
CC
Quiescent Supply
Current
6.0
V
I
= V
CC
or GND
44080µA
Obsolete Product(s) - Obsolete Product(s)
P1-P3P4-P6P7-P9P10-P10

M74HC540RM13TR

Mfr. #:
Buy M74HC540RM13TR
Manufacturer:
STMicroelectronics
Description:
Buffers & Line Drivers Octal Bus Buffer 6V 3-State 9ns 2 to 6V
Lifecycle:
New from this manufacturer.
Delivery:
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