MAX244C/D Maxim Integrated, MAX244C/D Datasheet - Page 3

• Manufacturer Part Number: MAX244C/D
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX220, MAX222, MAX223, MAX225, MAX230, MAX231, MAX232, MAX232A, MAX233, MAX233A, MAX234, MAX235, MAX236, MAX237, MAX238, MAX239, MAX240, MAX241, MAX242, MAX243, MAX244, MAX245, MAX246, MAX247, MAX248, MAX249r

Specifications of MAX244C/D

• Data Rate: 120 Kbps
• Operating Supply Voltage: 5 V
• Supply Current: 30 mA
• Operating Temperature Range: - 40 C to + 85 C
• Function: Transceiver
• Number Of Drivers: 8
• Number Of I/os: 36
• Number Of Receivers: 10
• Propagation Delay Time Ns: 3.5 us, 1.5 us
• Shutdown: No

Maxim Integrated
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(V
RS-232 Input Hysteresis
RS-232 Input Resistance
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
TTL/CMOS Output Short-Circuit Current
TTL/CMOS Output Leakage Current
EN Input Threshold Low
EN Input Threshold High
Supply Voltage Range
V
Figures 5, 6, 11, 19
Shutdown Supply Current
Transition Slew Rate
Transmitter Propagation Delay TLL to
RS-232 (Normal Operation)
CC
CC
Supply Current (V
= +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, T
Input Leakage Current
Threshold Low
Threshold High
PARAMETER
= V
CC
),
+5V-Powered, Multichannel RS-232
All except MAX220/MAX243, V
hysteresis in shutdown
MAX220
MAX243
T
I
I
I
Sourcing V
Sinking V
V
MAX222), 0V
MAX242
MAX242
No load
3k
both inputs
MAX222/
MAX242
MAX222/MAX242
MAX222/MAX242
MAX222/MAX242
C
R
V
+25°C, measured
from +3V to -3V or
-3V to +3V
t
t
OUT
OUT
OUT
PHLT
PLHT
A
CC
L
L
= 50pF to 2500pF,
= +25°C (MAX220)
= 3k
= +5V, T
load
= 3.2mA
= 1.6mA (MAX220)
= -1.0mA
, Figure 1
, Figure 1
= V
OUT
to 7k ,
CC
OUT
A
or V
= V
=
= V
V
MAX220
MAX222/MAX232A/MAX233A/
MAX242/MAX243
MAX220
MAX222/MAX232A/MAX233A/
MAX242/MAX243
T
T
T
T
OUT
A
A
A
A
CC
CONDITIONS
GND
= +25°C
= 0°C to +70°C
= -40°C to +85°C
= -55°C to +125°C
= V
MAX222/MAX232A/
MAX233/MAX242/MAX243
MAX220
MAX222/MAX232A/
MAX233/MAX242/MAX243
MAX220
MAX222/MAX232A/
MAX233/MAX242/MAX243
MAX220
V
CC
CC
(V
CC
= +5V, no
= 0V for
A
= T
MAX220–MAX249
MAX220–MAX249
Drivers/Receivers
MIN
to T
MAX
MIN
‚ unless otherwise noted.) (Note 3)
0.2
3.5
2.0
4.5
2.0
1.5
10
-2
3
3
6
±0.05
V
TYP
-10
0.5
0.3
0.2
CC
1.4
1.4
0.5
0.1
1.4
1.4
1.3
1.5
30
12
15
35
12
1
5
5
4
2
2
3
4
5
- 0.2
MAX
30.0
±10
100
1.0
0.4
0.4
0.8
5.5
0.8
3.5
3.5
±1
10
10
50
50
30
10
10
7
7
2
UNITS
V/μs
mA
mA
k
μA
μA
μA
μs
V
V
V
V
V
V
V
V
3