Datasheet
MAX1840/MAX1841
Low-Voltage SIM/Smart Card
Level Translators in µMAX
4 _______________________________________________________________________________________
Typical Operating Characteristics
(Circuit of Figure 1, DV
CC
= 3.0V, V
CC
= +5.0V, DDRV or DATA = DV
CC
, RIN = CIN = GND, T
A
= +25°C, unless otherwise noted.)
0
1.0
0.5
2.0
1.5
2.5
3.0
0426810
TOTAL OPERATING SUPPLY CURRENT
vs. CLOCK FREQUENCY (DATA STATIC)
MAX1840/1-01
FREQUENCY (MHz)
SUPPLY CURRENT, I
VCC
+ I
DVCC
(mA)
DATA OR DDRV = DV
CC
CIN CLOCKED WITH A
0 TO DV
CC
SQUARE WAVE
V
CC
= 5V
V
CC
= 3V
V
CC
= 1.8V
0
0.4
1.2
0.8
1.6
2.0
TOTAL OPERATING SUPPLY CURRENT
vs. CARD-SIDE SUPPLY VOLTAGE
(DATA STATIC)
MAX1840/1-02
V
CC
(V)
SUPPLY CURRENT, I
VCC
+ I
DVCC
(mA)
1.5 3.52.5 4.5 5.5
DATA OR DDRV = DV
CC
CIN CLOCKED WITH A
0 TO DV
CC
SQUARE WAVE
f
CIN
= 5MHz
f
CIN
= 3.25MHz
f
CIN
= 1.625MHz
1.6
1.2
0.8
0.4
0
-40 10-15 35 60 85
TOTAL OPERATING SUPPLY CURRENT
vs. TEMPERATURE (DATA STATIC)
MAX1840/1-03
TEMPERATURE (°C)
SUPPLY CURRENT, I
VCC
+ I
DVCC
(mA)
DATA OR DDRV = DV
CC
CIN CLOCKED WITH A
0 TO DV
CC
SQUARE WAVE
V
CC
= 5V
V
CC
= 3V
V
CC
= 1.8V
f
CIN
= 5MHz
0
1.0
0.5
2.0
1.5
2.5
3.0
0426810
TOTAL OPERATING SUPPLY CURRENT
vs. CLOCK FREQUENCY (DATA ACTIVE)
MAX1840/1-04
FREQUENCY (MHz)
SUPPLY CURRENT, I
VCC
+ I
DVCC
(mA)
f
DATA
OR f
DDRV
= f
CIN
/372
CIN CLOCKED WITH A
0 TO DV
CC
SQUARE WAVE
V
CC
= 5V
V
CC
= 3V
V
CC
= 1.8V
0
0.4
1.2
0.8
1.6
2.0
TOTAL OPERATING SUPPLY CURRENT
vs. CARD-SIDE SUPPLY VOLTAGE
(DATA ACTIVE)
MAX1840/1-05
V
CC
(V)
SUPPLY CURRENT, I
VCC
+ I
DVCC
(mA)
1.5 3.52.5 4.5 5.5
f
DATA
OR f
DDRV
= f
CIN
/372
CIN CLOCKED WITH A
0 TO DV
CC
SQUARE WAVE
f
CIN
= 5MHz
f
CIN
= 3.25MHz
f
CIN
= 1.625MHz
0
0.4
1.2
0.8
1.6
2.0
-40 10-15 35 60 85
TOTAL OPERATING SUPPLY CURRENT
vs. TEMPERATURE (DATA ACTIVE)
MAX1840/1-06
TEMPERATURE (°C)
SUPPLY CURRENT, I
VCC
+ I
DVCC
(mA)
f
DATA
OR f
DDRV
= f
CIN
/372
CIN CLOCKED WITH A
0 TO DV
CC
SQUARE WAVE
V
CC
= 5V
V
CC
= 3V
V
CC
= 1.8V
f
CIN
= 5MHz
CIN TO CLK OR RIN TO RST
WAVEFORM (3V TO 5V)
MAX1840/1-07
20ns/div
CIN OR RIN
2V/div
f
CIN
= 5MHz
0
0
3V
5V
CLK OR RST
2V/div
CIN TO CLK OR RIN TO RST
WAVEFORM (3V TO 1.8V)
MAX1840/1-08
20ns/div
CIN OR RIN
2V/div
f
CIN
= 5MHz
0
3V
1.8V
CLK OR RST
1V/div
0
CIN TO CLK OR RIN TO RST
WAVEFORM (1.8V TO 1.8V)
MAX1840/1-09
20ns/div
CIN OR RIN
1V/div
0
1.8V
1.8V
CLK OR RST
1V/div
0
f
CIN
= 5MHz