MAX3325CAI-T Maxim Integrated, MAX3325CAI-T Datasheet - Page 4

• Manufacturer Part Number: MAX3325CAI-T
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX3325r

Specifications of MAX3325CAI-T

• Data Rate: 250 Kbps
• Operating Supply Voltage: 3 V to 3.6 V
• Supply Current: 2 mA
• Operating Temperature Range: - 40 C to + 85 C
• Number Of I/os: 2 / 2
• Propagation Delay Time Ns: 300 ns

TIMING CHARACTERISTICS
(V
are at V
3V Dual RS-232 Transceiver with
LCD Supply and Contrast Controller
Note 2: Guaranteed by design and not production tested.
Note 3: No load on REG or transmitter outputs.
4
(V
Maximum Data Rate
Receiver Propagation Delay
Receiver Skew
Transmitter Skew
Transition-Region Slew Rate
DD
DD
_______________________________________________________________________________________
-2
-4
-6
-1
-3
-5
6
5
4
3
2
1
0
= +3.0V to +3.6V, V
= V
0
DD
TRANSMITTER OUTPUT VOLTAGE vs.
L
T1 TRANSMITTING AT 250kbps
T2 TRANSMITTING AT 15.6kbps
= +3.3V, circuit and components of Figure 1, all transmitters loaded with 3kΩ, T
= +3.3V, T
PARAMETER
1000
LOAD CAPACITANCE
LOAD CAPACITANCE (pF)
2000
A
= +25°C.)
L
3000
= +3.3V, circuit and components of Figure 1, T
4000
V
V
OUT+
OUT-
| t
| t
5000
SYMBOL
PLH
PLH
t
t
PHL
PLH
- t
- t
PHL
PHL
14
12
10
|
|
8
6
4
2
0
0
R
switching
Receiver input to receiver output,
C
V
7kΩ, C
from +3V to -3V or -3V to +3V
FOR DATA RATES
UP TO 250kbps
SLEW RATE vs. LOAD CAPACITANCE
DD
L
L
= 3kΩ, C
= 150pF
1000
= 3.3V, T
L
LOAD CAPACITANCE (pF)
= 150pF to 1000pF, measured
2000
L
CONDITIONS
A
= 1000pF, one transmitter
= +25°C, R
Typical Operating Characteristics
3000
A
= T
4000
MIN
L
= 3kΩ to
5000
to T
A
MAX
= +25°C, unless otherwise noted.)
, unless otherwise noted. Typical values
50
40
30
20
10
0
0
MIN
250
6
CAPACITANCE (T1 = 20kbps)
SUPPLY CURRENT vs. LOAD
1000
LOAD CAPACITANCE (pF)
TYP
300
300
300
200
2000
3000
T2 = 250kbps
T2 = 120kbps
T2 = 20kbps
MAX
30
4000
UNITS
kbps
V/µs
ns
ns
ns
5000