Datasheet

MAX1840/MAX1841
Low-Voltage SIM/Smart Card
Level Translators in µMAX
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(Figure 1, DV
CC
= +1.8V; V
CC
= +1.8V, +3.0V, or +5.0V; SHDN = DV
CC
, CIN = RIN = GND or DV
CC
, IO = V
CC
, DATA = DDRV = DV
CC
,
C
IO
= C
CLK
= C
RST
= C
DATA
= 30pF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note1)
UNITSCONDITIONS MIN TYP MAXSYMBOLPARAMETER
Output Low Level V
OL(DATA)
IO = GND, I
SINK
= 100µA
0.4
V
DV
CC
= 3.0V, IO = GND, I
SINK
= 200µA
0.4
Output High Level
I
SOURCE
= 10µA
0.7
✕
DV
CC
V
DV
CC
= 3.0V, I
SOURCE
= 20µA
0.7
✕
DV
CC
V
OH(DATA)
IO Pullup Resistance R
IO
Between IO and V
CC
6.5 10 14
kΩ
Input Low Threshold V
IL(IO)
I
IL(MAX)
= 1mA (Note 2)
0.3
V
Input High Threshold V
IH(IO)
I
IH(MAX)
= ±20µA (Note 3)
0.7
✕
V
CC
V
Input Low Current I
IL
1
mA
Input High Current I
IH
20
µA
Output Low Level V
OL(IO)
DATA = GND or DDRV = GND,
I
SINK
= 200µA
0.4
V
Output High Level V
OH(IO)
I
SOURCE
= 20µA
0.8
✕
V
CC
V
Shutdown Output Levels
(IO, CLK, RST)
I
SINK
= 200µA, SHDN = GND, DATA = CIN =
RIN = DV
CC
(MAX1840 only)
0.4
V
I
SINK
= 200µA, DV
CC
= GND, SHDN
(MAX1840) = DDRV (MAX1841) = DATA =
CIN = RIN = DV
CC
0.4
V
I
SINK
= 200µA, V
CC
= GND, SHDN
(MAX1840) = DDRV (MAX1841) = DATA =
CIN = RIN = DV
CC
0.4
V
Maximum CLK Frequency
(Notes 4, 5)
f
CLK
V
CC
= 2.7V to 5.5V, DV
CC
= 1.4V to 2.7V
520
MHz
V
CC
= 1.7V to 3.6V, DV
CC
= 1.4V to 2.25V
515
IO (INPUT/OUTPUT)
SHUTDOWN OUTPUT LEVELS
TIMING
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
Note 2: V
IL
is defined as the voltage at which the output (DATA/IO) voltage equals 0.5V.
Note 3: V
IH
is defined as the voltage at which the output (DATA/IO) voltage exceeds the input (IO/DATA) voltage by 100mV.
Note 4: Timing specifications are guaranteed by design, not production tested.
Note 5: The maximum CLK frequency is defined as the output duty cycle remaining in the 40% to 60% range when the 50% CIN is
applied. CIN has 5ns rise and fall times; levels are GND to DV
CC
. Input and output levels are measured at 50% of the waveform.