Datasheet

MAX3013
+1.2V to +3.6V, 0.1µA, 100Mbps,
8-Channel Level Translators
12 ______________________________________________________________________________________
Enable Input (EN)
The MAX3013 features an EN input. Pull EN low to set
the MAX3013 I/O on both sides in tristate output mode.
Drive EN to logic high (V
L
) for normal operation.
Applications Information
Power-Supply Decoupling
To reduce ripple and the chance of introducing data
errors, bypass V
L
and V
CC
to ground with a 0.1µF
ceramic capacitor. Place the bypass capacitors as
close to the power-supply input pins as possible.
8-Bit Bus Translation
The MAX3013 level-shifts the data present on the I/O
line between +1.2V to +3.6V, making it ideal for level
translation between a low-voltage ASIC and a higher
voltage system. The Typical Operating Circuit shows
the MAX3013 bidirectional translator in an 8-bit bus
level translation from a 1.8V system to a 3.3V system
and vice versa.
Unidirectional vs. Bidirectional Level
Translator
The MAX3013 bidirectional translator can operate as a
unidirectional device to translate signals without inver-
sion. This device provides the smallest solution (UCSP
package) for unidirectional level translation without inver-
sion.
0V
V
TH_IN
/R
IN
*
-(V
S
- V
TH_IN
)/R
IN
*
I
IN
V
TH_IN
*R
IN
= 4kΩ WHEN DRIVING V
L
SIDE.
R
IN
= 150Ω WHEN DRIVING V
CC
SIDE.
V
S
V
IN
WHERE V
S
= V
CC
OR V
L
.
Figure 6. Typical I
IN
vs. V
IN
MAX3013
+1.8V
+3.3V
+1.8V
SYSTEM
CONTROLLER
+3.3V
SYSTEM
GND
V
L
V
CC
EN
BIT 1
BIT 2
BIT 0
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
BIT 1
BIT 2
BIT 0
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
I/O V
CC
1
I/O V
CC
2
I/O V
CC
3
I/O V
CC
4I/O V
L
4
I/O V
L
3
I/O V
L
2
I/O V
L
1
0.1µF0.1µF
I/O V
CC
5
I/O V
CC
6I/O V
L
6
I/O V
L
5
I/O V
CC
7
I/O V
CC
8I/O V
L
8
I/O V
L
7
Typical Operating Circuit