MAX221EEUE+ Maxim Integrated Products, MAX221EEUE+ Datasheet - Page 4

• Manufacturer Part Number: MAX221EEUE+
• Description: IC TXRX RS-232 5V 16-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX221EEUE+

• Number Of Drivers/receivers: 1/1
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

+5V, 1µA, Single RS-232 Transceiver
with AutoShutdown
(V
4
CC
PIN
10
11
12
13
14
15
16
_______________________________________________________________________________________
-10
1
2
3
4
5
6
7
8
9
10
-2
-4
-6
-8
= +5V, 250kbps data rate, 0.1µF capacitors, transmitter loaded with 3k and C
8
6
4
2
0
0
VOLTAGE vs. LOAD CAPACITANCE
1000
FORCEOFF
TRANSMITTER OUTPUT
FORCEON
LOAD CAPACITANCE (pF)
INVALID
NAME
ROUT
TOUT
GND
20kbps
20kbps
C1+
C2+
V
C1-
C2-
RIN
TIN
EN
V+
V-
2000
CC
120kbps
120kbps
3000
250kbps
4000
250kbps
Receiver Enable Control. Drive low for normal operation. Drive high to force the receiver output
(ROUT) into a high-impedance state.
Positive Terminal of the Voltage Doubler Charge-Pump Capacitor
Positive Voltage Generated by the Charge Pump
Negative Terminal of the Voltage Doubler Charge-Pump Capacitor
Positive Terminal of the Inverting Charge-Pump Capacitor
Negative Terminal of the Inverting Charge-Pump Capacitor
Negative Voltage Generated by the Charge Pump
RS-232 Receiver Input
TTL/CMOS Receiver Output
Output of the Invalid Signal Detector. INVALID is pulled low if no valid RS-232 level is present on
the receiver input.
TTL/CMOS Transmitter Input
Drive high to override automatic circuitry, keeping transmitter and charge pump on.
FORCEOFF must be high (Table 1).
RS-232 Transmitter Output
Ground
+4.5V to +5.5V Supply Voltage
Force-Off Input, active low. Drive low to shut down transmitter, receiver, and on-board charge
pump. This overrides all automatic circuitry and FORCEON (Table 1).
5000
10
50
40
30
20
0
0
+SLEW
1000
-SLEW
LOAD CAPACITANCE
LOAD CAPACITANCE (pF)
SLEW RATE vs.
2000
3000
Typical Operating Characteristics
4000
FUNCTION
5000
L
, T
A
= +25°C, unless otherwise noted.)
50
40
30
20
10
0
0
CURRENT vs. LOAD CAPACITANCE
1000
OPERATING SUPPLY
LOAD CAPACITANCE (pF)
Pin Description
120kbps
2000
250kbps
3000
20kbps
4000
5000