Philips Semiconductors Product specification
74LVT2241
3.3V Octal buffer/line driver with 30 series
termination resistors; 3-State
1
1996 May 29 853-1840 16867
FEATURES
•Octal bus interface
•3-State buffers
•Output capability: +12mA/-12mA
•TTL input and output switching levels
•Input and output interface capability to systems at 5V supply
•Bus-hold data inputs eliminate the need for external pull-up
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.
DESCRIPTION
The 74LVT2241 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
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.
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.
QUICK REFERENCE DATA
SYMBOL PARAMETER
CONDITIONS
T
amb
= 25°C; GND = 0V
TYPICAL UNIT
t
PLH
t
PHL
Propagation delay
nAx to nYx
CL = 50pF;
V
CC
= 3.3V
3.0
3.3
ns
C
IN
Input capacitance VI = 0V or 3.0V 4 pF
C
OUT
Output capacitance Outputs disabled; VO = 0V or 3.0V 8 pF
I
CCZ
Total supply current Outputs disabled; VCC = 3.6V 0.12 mA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
20-Pin Plastic SOL –40°C to +85°C 74LVT2241 D 74LVT2241 D SOT163-1
20-Pin Plastic SSOP Type II –40°C to +85°C 74LVT2241 DB 74LVT2241 DB SOT339-1
20-Pin PlasticTSSOP Type I –40°C to +85°C 74LVT2241 PW 7LVT2241PW DH SOT360-1
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
1OE
1A0
2Y0
1A1
2Y1
1A2
2Y2
1A3
2Y3 1Y3
GND
2A2
1Y2
2A1
1Y1
2A0
1Y0
2OE
V
CC
2A3
SA00038
SYMBOL NAME AND FUNCTION
2, 4, 6, 8 1A0 – 1A3 Data inputs
17, 15, 13, 11 2A0 – 2A3 Data inputs
18, 16, 14, 12 1Y0 – 1Y3 Data outputs
3, 5, 7, 9 2Y0 – 2Y3 Data outputs
1, 19 1OE, 2OE Output enables
10 GND Ground (0V)
20 V
CC
Positive supply voltage
PIN DESCRIPTION
PIN NUMBER
Philips Semiconductors Product specification
74LVT2241
3.3V Octal buffer/line driver with 30 series
termination resistors; 3-State
1996 May 29
2
LOGIC SYMBOL (IEEE/IEC)
1
2 18
4 16
6 14
8 12
19
17 3
15 5
13 7
11 9
EN
EN
SA00040
SCHEMATIC OF EACH OUTPUT
V
CC
V
CC
OUTPUT
22Ω
20Ω
SW00202
LOGIC SYMBOL
1OE
1
1A0
2
1A1
4
1A2
6
1A3
8
2OE
19
2A0
17
2A1
18
15
2A2
13
16
2A3
11
14
12
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
3
5
7
9
SA00039
FUNCTION TABLE
INPUTS OUTPUTS
1OE 1An 2OE 2An 1Yn 2Yn
L L H L L L
L H H H H H
H X L X Z Z
H =High voltage level
L =Low voltage level
X = Don’t care
Z =High impedance “off” state
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
PARAMETER CONDITIONS RATING UNIT
V
CC
DC supply voltage –0.5 to +4.6 V
V
I
DC input voltage
3
–0.5 to +7.0 V
V
OUT
DC output voltage
3
Output in Off or High state –0.5 to +7.0 V
I
IK
DC input diode current VI < 0 –50 mA
I
OK
DC output diode current VO < 0 –50 mA
T
stg
Storage temperature range –65 to 150 °C
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.