Philips Semiconductors Product specification
74LVC125Quad buffer/line driver; 3-State
2
1997 Mar 18 853–1951 17865
FEATURES
• Wide supply voltage range of 1.2 to 3.6 V
• In accordance with JEDEC standard no. 8-1A
• Inputs accept voltages up to 5.5 V
• CMOS lower power consumption
• Direct interface with TTL levels
• Output drive capability 50 transmission lines at 85°C
DESCRIPTION
The 74LVC125 is a high performance, low-power, low-voltage
Si-gate CMOS device and superior to most advanced CMOS
compatible TTL families.
The 74LVC125 consists of four non-inverting buffers/line drivers with
3-State outputs. The 3-State outputs (nY) are controlled by the
output enable input (nOE
). A HIGH at nOE causes the outputs to
assume a high impedance OFF-state.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25°C; t
r
= t
f
≤ 2.5 ns
SYMBOL
PARAMETER CONDITIONS TYPICAL UNIT
t
PHL
/t
PLH
Propagation delay
nA to nY
C
L
= 15 pF;
V
CC
= 3.3 V
3.5 ns
C
I
Input capacitance 5.0 pF
C
PD
Power dissipation capacitance per buffer Notes 1 and 2 22 pF
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in µW)
P
D
= C
PD
× V
CC
2
× f
i
+Σ (C
L
× V
CC
2
× f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
Σ (C
L
× V
CC
2
× f
o
) = sum of the outputs.
2. The condition is V
I
= GND to V
CC
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. #
14-Pin Plastic SO –40°C to +85°C 74LVC125 D 74LVC125 D SOT108-1
14-Pin Plastic SSOP Type II –40°C to +85°C 74LVC125 DB 74LVC125 DB SOT337-1
14-Pin Plastic TSSOP Type I –40°C to +85°C 74LVC125 PW 74LVC125PW DH SOT402-1
PIN CONFIGURATION
SV00455
1
2
3
4
5
6
7
1OE
1A
1Y
2OE
2A
2Y
GND
V
CC
4OE
4A
4Y
3OE
3A
3Y
14
13
12
11
10
9
8
PIN DESCRIPTION
PIN
NUMBER
SYMBOL NAME AND FUNCTION
1, 4, 10, 13 1OE – 4OE Data enable inputs (active LOW)
2, 5, 9, 12 1A – 4A Data inputs
3, 6, 8, 11 1Y – 4Y Data Outputs
7 GND Ground (0 V)
14 V
CC
Positive supply voltage
LOGIC SYMBOL
SV00456
1Y
2Y
3Y
4Y
1
2
3
1OE
1A
4
5
6
2OE
2A
10
9
8
3OE
3A
13
12
11
4OE
4A
