SGS Thomson Microelectronics 74LVC125AM, 74LVC125ATTR, 74LVC125AMTR Datasheet
LOW VOLTAGE CMOS QUAD BUS BUFFERS (3-STATE)
■ 5V TOLERANT INPUTS
■ HIGH SPEED:t
■ POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
|=IOL= 24mA (MIN) at VCC=3V
OH
■ PCI BUS LEVELS GUARANTEEDAT 24 mA
■ BALANCED PROPAGATION DELAYS:
t
≅ t
PLH
PHL
■ OPERATING VOLTAGE RANGE:
V
(OPR) = 1.65V to 3.6V (1.2V Data
CC
Retention)
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 125
■ LATCH-UP PERFORMANCE EXCEEDS
500mA (JESD 17)
■ ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The 74LVC125A is a low voltage CMOS QUAD
BUS BUFFER fabricated with sub-micron silicon
gate and double-layer metal wiring C
technology. I t is ideal for 1.65 to 3.6 V
operations and low power and low noise
applications.
= 4. 8ns (MAX.) at VCC=3V
PD
2
MOS
CC
74LVC125A
HIGH PERFORMANCE
TSSOPSOP
ORDER CODES
PACKAGE TUBE T & R
SOP 74LVC125AM 74LVC125AMTR
TSSOP 74LVC125ATTR
It can be interfaced to 5V signal environment for
inputs in mixed 3.3/5V system.
These devices require the sam e 3-STATE control
input G
to the high impedance state.
It has more speed performance at 3.3V than 5V
AC/ACT family, combined with a lower power
consumption.
All inputs and outputs are e quipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
to be taken high to make the output go in
PIN CONNECTION AND IEC LOGIC SYMBOLS
1/9December 2002
74LVC125A
INPUT AND O UTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION TRUTH TABLE
PIN No SYMBOL NAME AND FUNCTION
1, 4, 9, 12 G1 to G4 Output Enable Inputs
2, 5, 10, 13 A1 to A4 Data Inputs
3, 6, 8, 11 Y1 to Y4 Data Outputs
7 GND Ground (0V)
14
V
CC
Positive Supply Voltage
X : Don’tcare
Z : High Impedance
AGY
XHZ
LLL
HLH
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
V
I
I
OK
I
or I
I
CC
T
T
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
absolute maximum rating must be observed
1) I
O
2) VO<GND
Supply Voltage
CC
DC Input Voltage
I
DC Output Voltage (High Impedance or VCC=0V)
O
DC Output Voltage (High or Low State) (note 1) -0.5 to VCC+ 0.5
O
DC Input Diode Current
IK
DC Output Diode Current (note 2)
DC Output Current
O
DC VCCor Ground Current per Supply Pin
GND
Storage Temperature
stg
Lead Temperature (10 sec)
L
-0.5 to +7.0 V
-0.5 to +7.0 V
-0.5 to +7.0 V
V
-50 mA
-50 mA
± 50 mA
± 100 mA
-65 to +150 °C
300 °C
2/9
74LVC125A
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
V
V
I
OH,IOL
I
OH,IOL
I
OH,IOL
I
OH,IOL
T
dt/dv Input Rise and Fall Time (note 2) 0 to 10 ns/V
1) Truth Table guaranteed: 1.2V to 3.6V
2) V
from0.8V to2Vat VCC=3.0V
IN
DC SPECIFICATIONS
Supply Voltage (note 1)
CC
Input Voltage
I
Output Voltage (High Impedance or VCC= 0V)
O
Output Voltage (High or Low State) 0 to V
O
High or Low Level Output Current (VCC= 3.0 to 3.6V)
High or Low Level Output Current (VCC= 2.7 to 3.0V)
High or Low Level Output Current (VCC= 2.3 to 2.7V)
High or Low Level Output Current (VCC= 1.65 to 2.3V)
Operating Temperature
op
Test Condition Value
1.65 to 3.6 V
0 to 5.5 V
0 to 5.5 V
CC
± 24 mA
± 12 mA
± 8mA
± 4mA
-55 to 125 °C
V
Symbol Parameter
V
V
V
V
I
off
I
OZ
High Level Input
IH
Voltage
Low Level Input
IL
Voltage
High Level Output
OH
Voltage
Low Level Output
OL
Voltage
Input Leakage
I
I
Current
Power Off Leakage
Current
High Impedance
Output Leakage
Current
I
CC
∆I
Quiescent Supply
Current
ICCincr. per Input
CC
V
CC
(V)
1.65 to 1.95
-40 to 85 °C -55 to 125 °C
Min. Max. Min. Max.
0.65V
CC
0.65V
CC
2.3to2.7 1.7 1.7
2.7to3.6 2 2
1.65 to 1.95
0.35V
CC
0.35V
2.3 to 2.7 0.7 0.7
2.7 to 3.6 0.8 0.8
1.65 to 3.6
1.65
2.3
2.7
3.0
3.0
1.65 to 3.6
1.65
2.3
2.7
3.0
3.6
0
3.6 VI=VIHorV
IO=-100 µAVCC-0.2 VCC-0.2
=-4 mA
I
O
=-8 mA
I
O
=-12 mA
I
O
=-18 mA
I
O
=-24 mA
I
O
IO=100 µA
=4 mA
I
O
=8 mA
I
O
=12 mA
I
O
I
=24 mA
O
= 0 to 5.5V
V
I
or VO= 5.5V
V
I
IL
1.2 1.2
1.7 1.7
2.2 2.2
2.4 2.4
2.2 2.2
0.2 0.2
0.45 0.45
0.7 0.7
0.4 0.4
0.55 0.55
± 5 ± 5 µA
10 10 µA
±5 ±5 µA
VO=0to5.5V
3.6
2.7to3.6
VI=VCCor GND
or VO= 3.6 to
V
I
5.5V
VIH=VCC-0.6V
10 10
± 10 ± 10
500 500 µA
Unit
V
CC
V
V
V
µA
3/9
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