SGS Thomson Microelectronics M74HC241HV, M74HC240HV Datasheet
OCTAL BUS B UFFERWITH3 STATE OUTPUTS
HC240HV: INVERTED -HC241HV NON INVERTED
.HIGH SPEED
tPD= 12 ns(TYP.) at VCC=5V
.LOWPOWER DISSIPATION
ICC=4µA (MAX.) at TA=25oC
.HIGH NOISEIMMUNITY
V
NIH=VINL
=28%VCC(MIN.)
.OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
.SYMMETRICALOUTPUT IMPEDANCE
|IOH|=IOL=6 mA (MIN)
.BALANCEDPROPAGATION DELAYS
t
PLH=tPHL
.SAME FUNCTION OF HC240/241 PLUS HIGH
TO LOW LEVEL LOGIC CONVERSION CAPABILITY
.LATCH UP FREE OPERATION ALSO WHEN
VIHIS HIGHERTHAN V
DESCRIPTION
The M54/74HC240HV and HC241HV are high
speed CMOSOCTAL BUSBUFFERs fabricated in
silicongate C2MOS technology.
They have the same high speed performance of
LSTTL combined with true CMOS low power
consumption.
Performing the same function of their non HV
counterpart, they have a particularl input
configuration whichallows all inputs tobedriven by
CC
M54HC240HV/241HV
M74HC240HV/241HV
B1R
(PlasticPackage)
M1R
(MicroPackage)
ORDER CODES :
M54HCXXXH VF 1R M74HCXXXHVM1 R
M74HCXXXH VB1R
logic levels exceedingthe supply voltage.
This makes them particularly suitable in systems
where mixed 3V/5V logic devices need to be
interfaced.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
NOTE:BOTH DEVICESDO NOT MEET 2KV ESD
RATING
F1R
(CeramicPackage)
PIN CONNECTION (top view)
April1993
HC241 HVHC240H V
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M54/M74HC240HV/241HV
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (H C240HV)
PIN No SYMBOL NAME AND FUNCTION
1 1G Output Enable Input
2, 4, 6, 8 1A1 to 1A4 Data Inputs
9, 7, 5, 3 2Y1 to 2Y4 Data Outputs
11, 13, 15,172A1 to 2A4 Data Inputs
18, 16, 14,121Y1 to 1Y4 Data Outputs
19 2G Output Enabel Input
10 GND Ground (0V)
20 V
CC
Positive Supply Voltage
IEC LOGIC SYMBOLS
PIN DESCRIPTION (HC241 HV)
PIN No SYMBOL NAME AND FUNCTION
1 1G Output Enable Input
2, 4, 6, 8 1A1 to 1A4 Data Inputs
9, 7, 5, 3 2Y1 to 2Y4 Data Outputs
11, 13, 15,172A1 to 2A4 Data Inputs
18, 16, 14,121Y1 to 1Y4 Data Outputs
19 2G Output Enabel Input
10 GND Ground (0V)
20 V
HC241 HVHC240H V
CC
Positive Supply Voltage
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M54/M74HC240HV/241HV
TRUTH TABLE
INPUT OUTPUT
G G (HC241) An Yn (HC240HV) Yn (HC241HV)
LHLHL
LHHLH
X: ”H” or ”L”
Z: Highimpedance
ABSOLU TE M AXI MU M R AT INGS
Symbol Parameter Value Unit
I
CC
AbsoluteMaximumRatingsarethose values beyond whichdamagetothedevice mayoccur. Functional operationunder these conditionisnotimplied.
(*)500 mW:≅ 65oC derate to 300 mWby10mW/oC: 65oCto85oC
HLXZZ
V
V
I
or I
P
T
V
I
I
T
CC
O
IK
OK
O
D
stg
Supply Voltage -0.5 to 13 V
DC Input Voltage -0.5 to 13 V
I
DC Output Voltage -0.5 to VCC+ 0.5 V
DC Input Diode Current - 20 mA
DC Output Diode Current ± 100 mA
DC Output Source Sink Current Per Output Pin ± 35 mA
DC VCCor Ground Current ± 100 mA
GND
Power Dissipation 500 (*) mW
Storage Temperature -65 to +150
Lead Temperature (10 sec) 300
L
o
C
o
C
RECO MM ENDED OPERATI N G CO NDITI O NS
Symbol Parameter Value Unit
V
T
t
V
V
r,tf
Supply Voltage 2 to 6 V
CC
Input Voltage 0 to 12 V
I
Output Voltage 0 to V
O
Operating Temperature: M54HC Series
op
M74HC Series
CC
-55 to +125
-40 to +85
Input Rise and Fall Time VCC= 2 V 0 to 1000 ns
V
= 4.5 V 0 to 500
CC
V
= 6 V 0 to 400
CC
V
o
C
o
C
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