MAX3221CAE-T Maxim Integrated, MAX3221CAE-T Datasheet - Page 11

• Manufacturer Part Number: MAX3221CAE-T
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX3221, MAX3223, MAX3243r

Specifications of MAX3221CAE-T

• Data Rate: 120 Kbps
• Operating Supply Voltage: 3 V to 5.5 V
• Supply Current: 1 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Function: Transceiver
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Number Of Drivers: 1
• Number Of I/os: 4
• Number Of Receivers: 1
• Propagation Delay Time Ns: 0.3 us
• Shutdown: Yes

Figure 8. Loopback Test Circuit
Figure 9. Loopback Test Result at 120kbps
C1
C2
T1OUT
R1OUT
V
V
0V
CC
T1IN
CC
V
C1–C4 = 0.1µF
CC
0.1µF
= +3.3V, 120kbps
FORCEOFF
C1+
C1-
C2+
C2-
T_ IN
R_ OUT
EN (MAX3221/3)
RS-232 Transceivers with AutoShutdown
______________________________________________________________________________________
MAX3221
MAX3223
MAX3243
1µA Supply-Current, True +3V to +5.5V
GND
V
5µs/div
CC
T_ OUT
5kΩ
R_ IN
V+
V-
C3
C4
5V/div
5V/div
5V/div
1000pF
Table 3. Required Capacitor Values
Table 4. Logic Family Compatibility with
Various Supply Voltages
Figure 10. Loopback Test Result at 235kbps
VOLTAGE
SYSTEM
POWER-
SUPPLY
3.0 to 3.6
4.5 to 5.5
3.0 to 5.5
3.3
(V)
R1OUT
T1OUT
5
5
V
T1IN
(V)
CC
V
C1–C4 = 0.1µF
CC
= +3.3V, 235kbps
V
CC
VOLTAGE
SUPPLY
(V)
3.3
3.3
5
0.047
(µF)
0.1
0.1
C1
2µs/div
Compatible with all CMOS
families.
Compatible with all TTL and
CMOS-logic families.
Compatible with ACT and
HCT CMOS, and with TTL.
Incompatible with AC, HC,
or CD4000 CMOS.
COMPATIBILITY
C2, C3, C4
(µF)
0.33
0.47
0.1
5V/div
5V/div
5V/div
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