1/12July 2004
HIGH SPEED:
t
PD
= 5 ns (TYP.) at V
CC
= 3.3 V
COMPATIBLE WITH TTL OUTPUTS
LOW POWER DISSIPATION:
I
CC
= 4 µA (MAX.) at T
A
=25°C
LOW NOISE:
V
OLP
= 0.3V (TYP.) at V
CC
= 3.3V
75 TRANSMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 12mA (MIN) at V
CC
= 3.0 V
PCI BUS LEVELS GUARANTEED AT 24 mA
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 3.6V (1.2V Data Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 125
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LVQ125 is a low voltage CMOS QUAD
BUS BUFFERS fabricated with sub-micron silicon
gate and double-layer metal wiring C
2
MOS
technology. It is ideal for low power and low noise
3.3V applications.
The device requires the same 3-STATE control
input G
to be set high to place the output in to the
high impedance state.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
74LVQ125
LOW VOLTAGE QUAD BUS BUFFERS (3-STATE)
Figure 1: Pin Connection And IEC Logic Symbols
Table 1: Order Codes
PACKAGE T & R
SOP 74LVQ125MTR
TSSOP 74LVQ125TTR
TSSOPSOP
Rev. 5
74LVQ125
2/12
Figure 2: Input And Output Equivalent Circuit Table 2: Pin Description
Table 3: Truth Table
X : Don‘t Care
Z : High Impedance
Table 4: Absolute Maximum Ratings
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
Table 5: Recommended Operating Conditions
1) Truth Table guaranteed: 1.2V to 3.6V
2) V
IN
from 0.8V to 2V
PIN N° SYMBOL NAME AND FUNCTION
1, 4, 10, 13 1G
to 4G Output Enable Inputs
2, 5, 9, 12 1A to 4A Data Inputs
3, 6, 8, 11 1Y to 4Y Data Outputs
7 GND Ground (0V)
14
V
CC
Positive Supply Voltage
AG
Y
XHZ
LLL
HLH
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.5 to +7 V
V
I
DC Input Voltage -0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage -0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
± 20 mA
I
OK
DC Output Diode Current
± 20 mA
I
O
DC Output Current
± 50 mA
I
CC
or I
GND
DC V
CC
or Ground Current
± 200 mA
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Symbol Parameter Value Unit
V
CC
Supply Voltage (note 1)
2 to 3.6 V
V
I
Input Voltage 0 to V
CC
V
V
O
Output Voltage 0 to V
CC
V
T
op
Operating Temperature
-55 to 125 °C
dt/dv
Input Rise and Fall Time V
CC
= 3.0V (note 2)
0 to 10 ns/V
74LVQ125
3/12
Table 6: DC Specifications
1) Maximum test duration 2ms, one output loaded at time
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 75
Table 7: Dynamic Switching Characteristics
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (V
ILD
), 0V to threshold
(V
IHD
), f=1MHz.
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
V
IH
High Level Input
Voltage
3.0 to
3.6
2.0 2.0 2.0 V
V
IL
Low Level Input
Voltage
0.8 0.8 0.8 V
V
OH
High Level Output
Voltage
3.0
I
O
=-50 µA
2.9 2.99 2.9 2.9
V
I
O
=-12 mA
2.58 2.48 2.48
I
O
=-24 mA
2.2 2.2
V
OL
Low Level Output
Voltage
3.0
I
O
=50 µA
0.002 0.1 0.1 0.1
V
I
O
=12 mA
0 0.36 0.44 0.44
I
O
=24 mA
0.55 0.55
I
I
Input Leakage
Current
3.6
V
I
= V
CC
or GND
± 0.1 ± 1 ± 1 µA
I
OZ
High Impedance
Output Leakage
Current
3.6
V
I
= V
IH
or V
IL
V
O
= V
CC
or GND
±0.25 ± 2.5 ± 5.0 µA
I
CC
Quiescent Supply
Current
3.6
V
I
= V
CC
or GND
44040µA
I
OLD
Dynamic Output
Current (note 1, 2)
3.6
V
OLD
= 0.8 V max
36 25 mA
I
OHD
V
OHD
= 2 V min
-25 -25 mA
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
V
OLP
Dynamic Low
Voltage Quiet
Output (note 1, 2)
3.3
C
L
= 50 pF
0.3 0.8
V
V
OLV
-0.8 -0.3
V
IHD
Dynamic High
Voltage Input (note
1, 3)
3.3 2
V
ILD
Dynamic Low
Voltage Input (note
1, 3)
3.3 0.8

74LVQ125MTR

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Buffers & Line Drivers Quad Bus Buffer
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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