PHILIPS 74LVT2241DB

Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30 series
termination resistors; 3-State
FEATURES
74LVT2241
DESCRIPTION
• 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
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.
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
SYMBOL
CONDITIONS
Tamb = 25°C; GND = 0V
PARAMETER
tPLH
tPHL
Propagation delay
nAx to nYx
CL = 50pF;
VCC = 3.3V
CIN
TYPICAL
UNIT
3.0
3.3
ns
pF
Input capacitance
VI = 0V or 3.0V
4
COUT
Output capacitance
Outputs disabled; VO = 0V or 3.0V
8
pF
ICCZ
Total supply current
Outputs disabled; VCC = 3.6V
0.12
mA
ORDERING INFORMATION
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
20-Pin Plastic SOL
PACKAGES
–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 Plastic TSSOP Type I
–40°C to +85°C
74LVT2241 PW
7LVT2241PW DH
SOT360-1
PIN CONFIGURATION
PIN DESCRIPTION
PIN NUMBER
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
1OE
1
20
VCC
1A0
2
19
2OE
2Y0
3
18
1Y0
1A1
4
17
2A0
3, 5, 7, 9
2Y0 – 2Y3
Data outputs
2Y1
5
16
1Y1
1, 19
1OE, 2OE
Output enables
1A2
6
15
2A1
10
GND
Ground (0V)
2Y2
7
14
1Y2
1A3
8
13
2A2
20
VCC
Positive supply voltage
2Y3
9
12
1Y3
11
2A3
GND 10
SA00038
1996 May 29
1
853-1840 16867
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30 series
termination resistors; 3-State
LOGIC SYMBOL (IEEE/IEC)
74LVT2241
LOGIC SYMBOL
2
1A0
1Y0
1A1
1Y1
1A2
1Y2
1A3
1Y3
18
1
EN
4
2
18
4
16
6
14
8
12
6
8
1
17
19
15
EN
17
3
15
5
13
7
11
9
13
11
19
16
14
12
1OE
2A0
2Y0
2A1
2Y1
2A2
2Y2
2A3
2Y3
3
5
7
9
2OE
SA00039
SA00040
FUNCTION TABLE
SCHEMATIC OF EACH OUTPUT
INPUTS
VCC
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
VCC
H
L
X
Z
22Ω
OUTPUT
20Ω
= High voltage level
= Low voltage level
= Don’t care
= High impedance “off ” state
SW00202
ABSOLUTE MAXIMUM RATINGS1, 2
PARAMETER
RATING
UNIT
DC supply voltage
–0.5 to +4.6
V
voltage3
–0.5 to +7.0
V
Output in Off or High state
–0.5 to +7.0
V
Output in Low state
128
Output in High state
–64
SYMBOL
VCC
VI
DC input
VOUT
DC output voltage3
IOUT
DC output current
CONDITIONS
mA
IIK
DC input diode current
VI < 0
–50
mA
IOK
DC output diode current
VO < 0
–50
mA
Tstg
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.
1996 May 29
2
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30 series
termination resistors; 3-State
74LVT2241
RECOMMENDED OPERATING CONDITIONS
SYMBOL
VCC
LIMITS
PARAMETER
DC supply voltage
UNIT
MIN
MAX
2.7
3.6
V
0
5.5
V
VI
Input voltage
VIH
High-level input voltage
VIL
Low-level Input voltage
0.8
V
IOH
High-level output current
–12
mA
IOL
2.0
V
Low-level output current
12
mA
∆t/∆v
Input transition rise or fall rate; outputs enabled
10
ns/V
Tamb
Operating free-air temperature range
+85
°C
–40
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Tamb = -40°C to +85°C
MIN
VIK
Input clamp voltage
VCC = 2.7V; II = –18mA
VOH
High-level output voltage
VCC = 3V; IOH = –12mA
VOL
Low-level output voltage
VCC = 3V; IOL = 12mA
2
Input leakage current
VCC = 3.6V; VI = VCC or GND
VCC = 3.6V; VI = VCC
IHOLD
Output off current
Bus hold current A inputs
Control pins
Data pins4
VCC = 3.6V; VI = 0
IOFF
MAX
0.9
–1.2
2.2
VCC = 0V; VI or VO = 0 to 4.5V
VCC = 3.0V; VI = 0.8V
A inputs
VCC = 3.0V; VI = 2.0V
1
10
±0.1
±1
0.1
1
–1
-5
1
±100
75
150
-75
–150
UNIT
V
V
0.8
VCC = 0 or 3.6V; VI = 5.5V
II
TYP1
V
µA
µA
µA
Current into an output in the
High state when VO > VCC
VO = 5.5V; VCC = 3.0V
60
125
µA
Power up/down 3-State
output current3
VCC = ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC;
OE/OE = Don’t care
±1
±100
µA
IOZH
3-State output High current
VCC = 3.6V; VO = 3.0V
1
5
µA
IOZL
3-State output Low current
VCC = 3.6V; VO = 0.5V
–1
–5
µA
0.12
0.19
IEX
IPU/PD
ICCH
ICCL
VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0
Quiescent supply current
ICCZ
∆ICC
Additional supply current
per input pin2
VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0
3
12
VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 05
0.12
0.19
VCC = 3.0 to 3.6V; One input at VCC -0.6V;
Other inputs at VCC or GND
0.1
0.25
mA
mA
NOTES:
1. All typical values are at Tamb = 25°C.
2. This is the increase in supply current for each input at VCC –0.6V.
3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 10% a
transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only.
4. Unused pins at VCC or GND
5. ICCZ is measured with outputs pulled to VCC or GND.
1996 May 29
3
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30 series
termination resistors; 3-State
74LVT2241
AC CHARACTERISTICS
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω;Tamb = –40°C to +85°C.
LIMITS
SYMBOL
PARAMETER
Tamb = –40°C to +85°C
VCC = +3.3V ±0.3V
VCC = 2.7V
MIN
TYP1
MAX
MAX
WAVEFORM
UNIT
tPLH
tPHL
Propagation delay
nAx to nYx
1
1
1
3.0
3.3
4.2
4.3
5.0
4.7
ns
tPZH
tPZL
Output enable time
to High and Low level,
1OE to 1Yn
2
1
1
4.4
4.3
6.2
5.9
8.5
6.8
ns
tPHZ
tPLZ
Output disable time
from High and Low level,
1OE to 1Yn
2
1
1.6
3.4
3.2
5.0
4.5
5.2
4.5
ns
tPZH
tPZL
Output enable time
to High and Low level,
2OE to 2Yn
2
1
1
4.4
4.1
6.2
5.5
7.9
6.2
ns
tPHZ
tPLZ
Output disable time
from High and Low level,
2OE to 2Yn
2
1
1
3.9
3.8
5.7
5.1
6.4
5.8
ns
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
OE INPUT
VM
VM
OE INPUT
VM
VM
An INPUT
tPLZ
tPZL
tPLH
tPHL
Yn OUTPUT
VM
VM
VOL + 0.3V
VM
Yn OUTPUT
tPHZ
tPZH
Yn OUTPUT
VOL
VOH
VOH – 0.3V
SA00028
Waveform 1. Waveforms Showing the Input (An)
to Output (Yn) Propagation Delays
3.5V
VM
0V
SA00041
Waveform 2. Waveforms Showing the 3–State Output
Enable and Disable Times
1996 May 29
4
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver with 30 series
termination resistors; 3-State
74LVT2241
TEST CIRCUIT AND WAVEFORMS
6.0V
VCC
Open
VIN
VOUT
PULSE
GENERATOR
RL
GND
tW
90%
NEGATIVE
PULSE
90%
VM
VM
10%
10%
D.U.T.
RT
0V
CL
tTHL (tF)
RL
tTLH (tR)
tTLH (tR)
tTHL (tF)
90%
Test Circuit for 3-State Outputs
POSITIVE
PULSE
AMP (V)
90%
VM
VM
10%
10%
tW
SWITCH POSITION
TEST
SWITCH
tPLH/tPHL
Open
tPLZ/tPZL
6V
tPHZ/tPZH
GND
AMP (V)
0V
VM = 1.5V
Input Pulse Definition
INPUT PULSE REQUIREMENTS
DEFINITIONS
FAMILY
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
74LVT
Amplitude
Rep. Rate
2.7V
10MHz
tW
tR
tF
500ns 2.5ns 2.5ns
RT = Termination resistance should be equal to ZOUT of
pulse generators.
SV00092
1996 May 29
5