74LVT2241D [NXP]
3.3V Octal buffer/line driver with 30ohm series termination resistors; 3-State; 3.3V八路缓冲器/与30ohm系列终端电阻线路驱动器;三态
| 型号： | 74LVT2241D |
| 厂家： | 
NXP |
| 描述： | 3.3V Octal buffer/line driver with 30ohm series termination resistors; 3-State |
| 文件： | 总5页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30W series
termination resistors; 3-State
74LVT2241
FEATURES
• Octal bus interface
• 3-State buffers
DESCRIPTION
The 74LVT2241 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
• Output capability: +12mA/-12mA
• TTL input and output switching levels
• Input and output interface capability to systems at 5V supply
The 74LVT2241 device is an octal buffer that is ideal for driving bus
lines. The device features two Output Enables (1OE, 2OE), each
controlling four of the 3-State outputs.
• Bus-hold data inputs eliminate the need for external pull-up
The 74LVT2241 is designed with 30Ω series resistance in both the
High and Low states of the output. This design reduces the line
noise in applications such as memory address drivers, clock drivers
and bus receivers/transmitters.
resistors to hold unused inputs
• Power-up 3-State
• Live insertion/extraction permitted
• No bus current loading when output is tied to 5V bus
• Latch-up protection exceeds 500mA per JEDEC Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model.
• Outputs include series resistance of 30Ω, making external
termination resistors unnecessary.
QUICK REFERENCE DATA
CONDITIONS
= 25°C; GND = 0V
SYMBOL
PARAMETER
TYPICAL
UNIT
T
amb
t
t
Propagation delay
nAx to nYx
C = 50pF;
3.0
3.3
PLH
PHL
L
ns
V
CC
= 3.3V
C
Input capacitance
Output capacitance
Total supply current
V = 0V or 3.0V
4
8
pF
pF
IN
I
C
Outputs disabled; V = 0V or 3.0V
O
OUT
CCZ
I
Outputs disabled; V = 3.6V
0.12
mA
CC
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
SOT163-1
20-Pin Plastic SOL
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
74LVT2241 D
74LVT2241 DB
74LVT2241 PW
74LVT2241 D
74LVT2241 DB
7LVT2241PW DH
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
SOT339-1
SOT360-1
PIN CONFIGURATION
PIN DESCRIPTION
PIN NUMBER
2, 4, 6, 8
17, 15, 13, 11
18, 16, 14, 12
3, 5, 7, 9
1, 19
SYMBOL
NAME AND FUNCTION
Data inputs
1A0 – 1A3
2A0 – 2A3
1Y0 – 1Y3
2Y0 – 2Y3
1OE, 2OE
GND
20
1OE
1A0
2Y0
1A1
2Y1
1A2
2Y2
1A3
2Y3
1
2
3
4
5
6
7
8
9
V
CC
Data inputs
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
Data outputs
Data outputs
Output enables
Ground (0V)
10
20
V
CC
Positive supply voltage
GND 10
11
2A3
SA00038
1
1996 May 29
853-1840 16867
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30W series
termination resistors; 3-State
74LVT2241
LOGIC SYMBOL (IEEE/IEC)
LOGIC SYMBOL
1A0
1Y0
2
18
1
1A1
1A2
1Y1
1Y2
1Y3
EN
4
6
16
14
12
2
18
4
6
16
14
1A3
8
1
1OE
8
12
2A0
2A1
2Y0
2Y1
17
3
5
7
9
19
15
13
EN
2A2
2Y2
2Y3
17
3
2A3
15
13
5
7
11
19
2OE
11
9
SA00039
SA00040
FUNCTION TABLE
SCHEMATIC OF EACH OUTPUT
INPUTS
OUTPUTS
V
CC
1OE
L
1An
2OE
H
2An
1Yn
L
2Yn
L
V
CC
L
H
X
L
H
X
L
H
H
H
H
L
Z
Z
22Ω
20Ω
H = High voltage level
OUTPUT
L
X
Z
= Low voltage level
= Don’t care
= High impedance “off” state
SW00202
1, 2
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
CONDITIONS
RATING
–0.5 to +4.6
–0.5 to +7.0
–0.5 to +7.0
128
UNIT
V
CC
DC supply voltage
V
V
V
3
V
I
DC input voltage
3
V
OUT
DC output voltage
Output in Off or High state
Output in Low state
I
DC output current
mA
OUT
Output in High state
–64
I
DC input diode current
DC output diode current
Storage temperature range
V < 0
–50
mA
mA
°C
IK
I
I
V
O
< 0
–50
OK
T
stg
–65 to 150
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
2
1996 May 29
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30W series
termination resistors; 3-State
74LVT2241
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
UNIT
MIN
2.7
0
MAX
V
CC
DC supply voltage
3.6
5.5
V
V
V
I
Input voltage
V
High-level input voltage
Low-level Input voltage
High-level output current
Low-level output current
2.0
V
IH
V
0.8
–12
12
V
IL
I
mA
mA
ns/V
°C
OH
I
OL
∆t/∆v
Input transition rise or fall rate; outputs enabled
Operating free-air temperature range
10
T
amb
–40
+85
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= -40°C to +85°C
UNIT
1
MIN
TYP
0.9
MAX
V
Input clamp voltage
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 2.7V; I = –18mA
–1.2
V
V
V
IK
I
V
OH
High-level output voltage
Low-level output voltage
= 3V; I = –12mA
2
2.2
OH
V
OL
= 3V; I = 12mA
0.8
10
OL
= 0 or 3.6V; V = 5.5V
1
±0.1
0.1
–1
I
= 3.6V; V = V or GND
Control pins
±1
I
CC
CC
I
Input leakage current
µA
I
= 3.6V; V = V
1
I
4
Data pins
= 3.6V; V = 0
-5
I
I
Output off current
= 0V; V or V = 0 to 4.5V
1
±100
µA
µA
OFF
I
O
= 3.0V; V = 0.8V
75
150
–150
I
I
Bus hold current A inputs
A inputs
HOLD
= 3.0V; V = 2.0V
-75
I
Current into an output in the
I
V
= 5.5V; V = 3.0V
60
125
µA
µA
EX
O
CC
High state when V > V
O
CC
Power up/down 3-State
V
CC
= ≤ 1.2V; V = 0.5V to V ; V = GND or V
;
O
CC
I
CC
I
±1
±100
PU/PD
3
output current
OE/OE = Don’t care
I
3-State output High current
3-State output Low current
V
V
V
V
V
V
= 3.6V; V = 3.0V
1
–1
5
µA
µA
OZH
CC
CC
CC
CC
CC
CC
O
I
= 3.6V; V = 0.5V
–5
OZL
O
I
= 3.6V; Outputs High, V = GND or V I 0
CC, O =
0.12
3
0.19
12
CCH
I
I
Quiescent supply current
Additional supply current
= 3.6V; Outputs Low, V = GND or V I 0
CC, O =
mA
mA
CCL
I
5
I
= 3.6V; Outputs Disabled; V = GND or V
I 0
CC, O =
0.12
0.19
CCZ
I
= 3.0 to 3.6V; One input at V -0.6V;
CC
∆I
0.1
0.25
CC
2
per input pin
Other inputs at V or GND
CC
NOTES:
1. All typical values are at T
= 25°C.
amb
2. This is the increase in supply current for each input at V –0.6V.
CC
3. This parameter is valid for any V between 0V and 1.2V with a transition time of up to 10msec. From V = 1.2V to V = 3.3V ± 10% a
CC
CC
CC
transition time of 100µsec is permitted. This parameter is valid for T
= 25°C only.
amb
4. Unused pins at V or GND
CC
5. I
is measured with outputs pulled to V or GND.
CCZ
CC
3
1996 May 29
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30W series
termination resistors; 3-State
74LVT2241
AC CHARACTERISTICS
GND = 0V; t = t = 2.5ns; C = 50pF; R = 500Ω;T
= –40°C to +85°C.
R
F
L
L
amb
LIMITS
T
= –40°C to +85°C
amb
V
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 2.7V
UNIT
= +3.3V ±0.3V
CC
1
MIN
TYP
MAX
MAX
t
t
Propagation delay
nAx to nYx
1
1
3.0
3.3
4.2
4.3
5.0
4.7
PLH
PHL
1
2
ns
ns
Output enable time
to High and Low level,
t
t
t
t
1
1
4.4
4.3
6.2
5.9
8.5
6.8
PZH
t
PZL
1OE to 1Y
n
Output disable time
from High and Low level,
1
1.6
3.4
3.2
5.0
4.5
5.2
4.5
PHZ
t
2
2
2
ns
ns
ns
PLZ
1OE to 1Y
n
Output enable time
to High and Low level,
1
1
4.4
4.1
6.2
5.5
7.9
6.2
PZH
t
PZL
2OE to 2Y
n
Output disable time
from High and Low level,
1
1
3.9
3.8
5.7
5.1
6.4
5.8
PHZ
t
PLZ
2OE to 2Y
n
NOTE:
1. All typical values are at V = 3.3V and T
= 25°C.
amb
CC
AC WAVEFORMS
V
M
= 1.5V, V = GND to 3.0V
IN
OE INPUT
OE INPUT
V
V
M
M
t
V
V
M
M
t
An INPUT
t
PLZ
PZL
3.5V
t
PLH
PHL
Yn OUTPUT
Yn OUTPUT
V
M
V
V
+ 0.3V
OL
OL
V
M
V
M
t
Yn OUTPUT
t
PHZ
PZH
V
OH
SA00028
V
– 0.3V
0V
OH
V
M
Waveform 1. Waveforms Showing the Input (An)
to Output (Yn) Propagation Delays
SA00041
Waveform 2. Waveforms Showing the 3–State Output
Enable and Disable Times
4
1996 May 29
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30W series
termination resistors; 3-State
74LVT2241
TEST CIRCUIT AND WAVEFORMS
6.0V
V
CC
t
W
AMP (V)
90%
Open
GND
90%
NEGATIVE
PULSE
V
V
M
V
V
OUT
M
10%
R
R
IN
L
10%
90%
PULSE
GENERATOR
D.U.T.
0V
t
t
(t
(t
)
t
t
(t
)
R
THL
F
TLH
R
T
C
L
L
)
(t )
F
TLH
R
THL
AMP (V)
90%
M
Test Circuit for 3-State Outputs
POSITIVE
PULSE
V
V
M
10%
10%
t
W
0V
SWITCH POSITION
V
= 1.5V
M
TEST
SWITCH
Open
6V
Input Pulse Definition
t
/t
PLH PHL
t
/t
PLZ PZL
t
/t
GND
PHZ PZH
INPUT PULSE REQUIREMENTS
DEFINITIONS
FAMILY
R = Load resistor; see AC CHARACTERISTICS for value.
L
Amplitude
Rep. Rate
t
t
t
F
W
R
C = Load capacitance includes jig and probe capacitance;
L
see AC CHARACTERISTICS for value.
74LVT
2.7V
v10MHz
500ns v2.5ns v2.5ns
R = Termination resistance should be equal to Z
T
of
OUT
pulse generators.
SV00092
5
1996 May 29
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