74LVC1G157
Single 2-input multiplexer
Rev. 01 — 25 April 2005
Product data sheet
1. General description
The 74LVC1G157 is a high-performance, low-voltage, Si-gate CMOS device, superior
to most advanced CMOS compatible TTL families.
The input can be driven from either 3.3 V or 5 V devices. This feature allows the use of
this device in a mixed 3.3 V and 5 V environment.
This device is fully specified for partial power-down applications using I
off
. The I
off
circuitry
disables the output, preventing the damaging backflow current through the device when
it is powered down.
The 74LVC1G157 is a single 2-input multiplexer which select data from two data inputs (I0
and I1) under control of a common data select input (S). The state of the common data
select input determines the particular register from which the data comes. The output (Y)
presents the selected data in the true (non-inverted) form.
Schmitt-trigger action at all inputs makes the circuit highly tolerant to slower input rise and
fall times.
2. Features
s
s
s
s
Wide supply voltage range from 1.65 V to 5.5 V
5 V tolerant inputs for interfacing with 5 V logic
High noise immunity
Complies with JEDEC standard:
x
JESD8-7 (1.65 V to 1.95 V)
x
JESD8-5 (2.3 V to 2.7 V)
x
JESD8B/JESD36 (2.7 V to 3.6 V)
±24
mA output drive (V
CC
= 3.0 V)
ESD protection:
x
HBM EIA/JESD22-A114-B exceeds 2000 V
x
MM EIA/JESD22-A115-A exceeds 200 V
CMOS low power consumption
Latch-up performance exceeds 250 mA
Direct interface with TTL levels
Inputs accept voltages up to 5 V
Multiple package options
Specified from
−40 °C
to +85
°C
and
−40 °C
to +125
°C
s
s
s
s
s
s
s
s
Philips Semiconductors
74LVC1G157
Single 2-input multiplexer
3. Quick reference data
Table 1:
Quick reference data
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
≤
2.5 ns.
Symbol
Parameter
Conditions
C
L
= 50 pF; V
CC
= 3.3 V
C
L
= 50 pF; V
CC
= 3.3 V
Min
-
-
-
V
CC
= 3.3 V
[1] [2]
Typ
2.7
2.9
2.5
18
Max
-
-
-
-
Unit
ns
ns
pF
pF
t
PHL
, t
PLH
propagation delay
I0, I1 to Y
propagation delay
S to Y
C
I
C
PD
[1]
input capacitance
power dissipation
capacitance
-
C
PD
is used to determine the dynamic power dissipation (P
D
in
µW).
P
D
= C
PD
×
V
CC2
×
f
i
×
N +
Σ(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in Volts;
N = number of inputs switching;
Σ(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
The condition is V
I
= GND to V
CC
.
[2]
4. Ordering information
Table 2:
Ordering information
Package
Temperature range Name
74LVC1G157GW
74LVC1G157GV
74LVC1G157GM
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
SC-88
SC-74
XSON6
Description
plastic surface mounted package; 6 leads
plastic surface mounted package; 6 leads
plastic extremely thin small outline package; no
leads; 6 terminals; body 1
×
1.45
×
0.5 mm
Version
SOT363
SOT457
SOT886
Type number
5. Functional diagram
1
I1
S
Y
1
4
001aac652
001aac653
3
I0
6
G1
6
3
1 MUX
1
4
Fig 1. Logic symbol
Fig 2. IEC logic symbol
9397 750 14854
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 25 April 2005
2 of 15
Philips Semiconductors
74LVC1G157
Single 2-input multiplexer
I1
I0
1
3
SELECTOR
MULTIPLEXER
OUTPUT S
4
Y
6
S
001aac655
Fig 3. Functional diagram
S
I1
Y
I0
001aac654
Fig 4. Logic diagram
6. Pinning information
6.1 Pinning
157
I1
I1
1
6
S
GND
GND
2
2
5
V
CC
1
6
S
157
5
V
CC
I0
3
4
Y
I0
3
001aac656
4
Y
001aac657
Transparent top view
Fig 5. Pin configuration SC-88 and SC-74
Fig 6. Pin configuration XSON6
9397 750 14854
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 25 April 2005
3 of 15
Philips Semiconductors
74LVC1G157
Single 2-input multiplexer
6.2 Pin description
Table 3:
Symbol
I1
GND
I0
Y
V
CC
S
Pin description
Pin
1
2
3
4
5
6
Description
data input from source 1
ground (0 V)
data input from source 0
multiplexer output
supply voltage
common data select input
7. Functional description
7.1 Function table
Table 4:
Inputs
S
L
L
H
H
[1]
Function table
[1]
Output
I1
X
X
L
H
I0
L
H
X
X
Y
L
H
L
H
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care.
8. Limiting values
Table 5:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to
GND (ground = 0 V).
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
, I
GND
T
stg
P
tot
[1]
[2]
Parameter
supply voltage
input diode current
input voltage
output diode current
output voltage
output diode current
V
CC
or GND current
storage temperature
power dissipation
Conditions
V
I
< 0 V
[1]
Min
−0.5
-
−0.5
-
[1] [2]
[1] [2]
Max
+6.5
−50
+6.5
±50
+6.5
±50
±100
+150
250
Unit
V
mA
V
mA
V
mA
mA
°C
mW
V
O
> V
CC
or V
O
< 0 V
active mode
Power-down mode
V
O
= 0 V to V
CC
−0.5
−0.5
-
-
−65
V
CC
+ 0.5 V
T
amb
=
−40 °C
to +125
°C
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
When V
CC
= 0 V (Power-down mode), the output voltage can be 5.5 V in normal operation.
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
9397 750 14854
Product data sheet
Rev. 01 — 25 April 2005
4 of 15
Philips Semiconductors
74LVC1G157
Single 2-input multiplexer
9. Recommended operating conditions
Table 6:
Symbol
V
CC
V
I
V
O
T
amb
t
r
, t
f
Recommended operating conditions
Parameter
supply voltage
input voltage
output voltage
ambient temperature
input rise and fall times
V
CC
= 1.65 V to 2.7 V
V
CC
= 2.7 V to 5.5 V
active mode
Power-down mode; V
CC
= 0 V
Conditions
Min
1.65
0
0
0
−40
0
0
Max
5.5
5.5
V
CC
5.5
+125
20
10
Unit
V
V
V
V
°C
ns/V
ns/V
10. Static characteristics
Table 7:
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
T
amb
=
−40 °C
to +85
°C
[1]
V
IH
HIGH-level input voltage V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
CC
= 4.5 V to 5.5 V
V
IL
LOW-level input voltage
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
CC
= 4.5 V to 5.5 V
V
OH
HIGH-level output
voltage
V
I
= V
IH
or V
IL
I
O
=
−100 µA;
V
CC
= 1.65 V to 5.5 V
I
O
=
−4
mA; V
CC
= 1.65 V
I
O
=
−8
mA; V
CC
= 2.3 V
I
O
=
−12
mA; V
CC
= 2.7 V
I
O
=
−24
mA; V
CC
= 3.0 V
I
O
=
−32
mA; V
CC
= 4.5 V
V
OL
LOW-level output
voltage
V
I
= V
IH
or V
IL
I
O
= 100
µA;
V
CC
= 1.65 V to 5.5 V
I
O
= 4 mA; V
CC
= 1.65 V
I
O
= 8 mA; V
CC
= 2.3 V
I
O
= 12 mA; V
CC
= 2.7 V
I
O
= 24 mA; V
CC
= 3.0 V
I
O
= 32 mA; V
CC
= 4.5 V
I
LI
I
off
input leakage current
power OFF leakage
current
V
I
= 5.5 V or GND; V
CC
= 5.5 V
V
I
or V
O
= 5.5 V; V
CC
= 0 V
-
-
-
-
-
-
-
-
-
0.07
0.12
0.17
0.33
0.39
±0.1
±0.1
0.10
0.45
0.30
0.40
0.55
0.55
±5
±10
V
V
V
V
V
V
µA
µA
V
CC
−
0.1
1.2
1.9
2.2
2.3
3.8
-
1.54
2.15
2.50
2.62
4.11
-
-
-
-
-
-
V
V
V
V
V
V
0.65
×
V
CC
-
1.7
2.0
0.7
×
V
CC
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.7
0.8
0.3
×
V
CC
V
V
V
V
V
V
V
Conditions
Min
Typ
Max
Unit
0.35
×
V
CC
V
9397 750 14854
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 25 April 2005
5 of 15
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