STMICROELECTRONICS 74V2T241STR

74V2T241
DUAL BUS BUFFER NON INVERTED (3-STATE)
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HIGH SPEED: tPD = 3.8ns (TYP.) at VCC = 5V
LOW POWER DISSIPATION:
ICC = 1µA(MAX.) at TA = 25°C
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
COMPATIBLE WITH TTL LEVEL:
VIH=2.0V(MIN), VIL=0.8V(MAX)
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8mA (MIN) at VCC = 4.5V
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 4.5V to 5.5V
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74V2T241 is an advanced high-speed CMOS
DUAL BUS BUFFER NON INVERTER fabricated
with sub-micron silicon gate and double-layer
metal wiring C2MOS technology.
It has one active-high and one active-low output
enable. Power down protection is provided on all
SOT23-8L
ORDER CODES
PACKAGE
T&R
SOT23-8L
74V2T241STR
inputs and outputs and 0 to 7V can be accepted
on inputs with no regard to the supply voltage.
This device can be used to interface 5V to 3V
systems and it is ideal for portable applications
like personal digital assistant, camcorder and all
battery-powered equipment.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them ESD immunity and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
June 2003
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74V2T241
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN N°
SYMBOL
1, 7
2, 5
3, 6
4
1G, 2G
1A, 2A
2Y, 1Y
GND
VCC
8
NAME AND FUNCTION
Output Enable Inputs
Data Inputs
Data Outputs
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
1G
2G
A
Y
L
L
H
H
H
L
L
H
X
L
H
Z
X: "H" or "L"
Z: High Impedance
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Parameter
Value
Unit
Supply Voltage
-0.5 to +7.0
V
VI
DC Input Voltage
-0.5 to +7.0
V
VO
DC Output Voltage (see note 1)
-0.5 to +7.0
V
VO
DC Output Voltage (see note 2)
-0.5 to VCC + 0.5
V
IIK
DC Input Diode Current
− 20
mA
IOK
DC Output Diode Current
− 20
mA
IO
DC Output Current
ICC or IGND DC VCC or Ground Current
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
± 25
mA
± 50
mA
-65 to +150
°C
260
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
1) VCC=0V or nG=VCC(Output in High Impedance state)
2) High or Low State
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Supply Voltage
Unit
4.5 to 5.5
V
VI
Input Voltage
0 to 5.5
V
VO
Output Voltage (see note 1)
0 to 5.5
V
VO
Output Voltage (see note 2)
Top
Operating Temperature
dt/dv
Input Rise and Fall Time (note 3)
1) VCC=0V or Output in High Impedance state
2) High or Low State
3) VIN from 0.8 to 2.0V
2/8
Value
(VCC = 5.0 ± 0.5V)
0 to VCC
V
-55 to 125
°C
0 to 20
ns/V
74V2T241
DC SPECIFICATIONS
Test Condition
Symbol
VIH
Parameter
4.5 to
5.5
4.5 to
5.5
VOL
Low Level Output
Voltage
IOZ
High Impedance
Output Leakage
Current
Input Leakage
Current
Power down Output
Leakage Current
Quiescent Supply
Current
VIL
VOH
II
IOPD
ICC
TA = 25°C
VCC
(V)
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Value
Min.
Typ.
Max.
0.8
-40 to 85°C
-55 to 125°C
Min.
Min.
0.8
2.0
4.5
IO=-50 µA
4.4
4.5
IO=-8 mA
3.94
4.5
IO=50 µA
4.5
Max.
4.5
0.0
Max.
0.8
2.0
V
2.0
4.4
4.4
3.8
3.7
Unit
V
V
0.1
0.1
0.1
V
IO=8 mA
0.36
0.44
0.44
5.5
VI = VIH or VIL
VO = 5.5 or GND
±0.25
± 2.5
± 2.5
µA
0 to
5.5
VI = 5.5V or GND
± 0.1
±1
±1
µA
0
VO = 5.5
0.5
5
10
µA
5.5
VI = VCC or GND
1
10
10
µA
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
VCC
(V)
tPLH
tPHL
Propagation Delay
Time
5.0(**)
tPLZ
tPHZ
Output Disable
Time
tPZL
tPZH
Output Enable
Time
Value
TA = 25°C
CL
(pF)
Min.
15
-40 to 85°C
-55 to 125°C
Typ.
Max.
Min.
Max.
Min.
Max.
3.8
5.5
1.0
6.5
1.0
7.5
5.0
(**)
50
4.3
6.5
1.0
7.5
1.0
8.5
5.0
(**)
15
RL = 1 KΩ
3.6
5.0
1.0
6.0
1.0
7.0
5.0(**)
50
RL = 1 KΩ
5.1
7.0
1.0
8.0
1.0
9.0
5.0(**)
15
RL = 1 KΩ
3.7
5.9
1.0
7.0
1.0
8.0
50
RL = 1 KΩ
4.1
6.5
1.0
7.5
1.0
8.5
5.0
(**)
Unit
ns
ns
ns
(**) Voltage range is 5.0V ± 0.5V
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
Value
TA = 25°C
Min.
CIN
Input Capacitance
COUT
Output
Capacitance
Power Dissipation
Capacitance
(note 1)
CPD
Typ.
Max.
4
10
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
6
pF
14
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/2
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74V2T241
TEST CIRCUIT TEST CIRCUIT
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ
VCC
tPZH, tPHZ
GND
CL =15/50pF or equivalent (includes jig and probe capacitance)
R1 = 1KΩ or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
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74V2T241
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
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74V2T241
SOT23-8L MECHANICAL DATA
mm.
mils
DIM.
MIN.
MAX.
MIN.
TYP.
MAX.
A
0.90
1.45
35.4
57.1
A1
0.00
0.15
0.0
5.9
A2
0.90
1.30
35.4
51.2
b
0.22
0.38
8.6
14.9
C
0.09
0.20
3.5
7.8
D
2.80
3.00
110.2
118.1
E
2.60
3.00
102.3
118.1
E1
1.50
1.75
59.0
68.8
e
0
e1
L
6/8
TYP
0.35
.65
25.6
1.95
76.7
0.55
13.7
21.6
74V2T241
Tape & Reel SOT23-xL MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
180
13.0
7.086
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
MAX.
0.504
0.512
14.4
0.519
0.567
Ao
3.13
3.23
3.33
0.123
0.127
0.131
Bo
3.07
3.17
3.27
0.120
0.124
0.128
Ko
1.27
1.37
1.47
0.050
0.054
0.0.58
Po
3.9
4.0
4.1
0.153
0.157
0.161
P
3.9
4.0
4.1
0.153
0.157
0.161
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74V2T241
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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