MAX3320ACAP+T Maxim Integrated Products, MAX3320ACAP+T Datasheet - Page 5

• Manufacturer Part Number: MAX3320ACAP+T
• Description: IC TXRX RS232 250KBPS 20-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3320ACAP+T

• Number Of Drivers/receivers: 2/2
• Protocol: RS232
• Voltage - Supply: 3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

______________________________________________________________Pin Description
13, 14
15, 16
____________________________Typical Operating Characteristics (continued)
(V
otherwise noted.)
PIN
5, 6
7, 8
10
11
12
17
18
19
20
CC
1
2
3
4
9
3V to 5.5V, up to 250kbps True RS-232 Transceiver
with 4µA AutoShutdown Plus and Power-On Reset
= 3.3V, 250kbps data rate, C1–C4 = 0.1µF, all transmitters loaded with 3k . Typical values are at T
150
250
200
300
100
50
0
10
FORCEOFF
FORCEON
vs. RESET COMPARATOR OVERDRIVE
INVALID
SHUTDOWN
R_OUT
NAME
T_OUT
RESET
MAXIMUM TRANSIENT DURATION
SHUTDOWN MODE
C
GND
T_IN
R_IN
C2+
V
C1+
NOT IN
C2-
C1-
MODE
BYPASS
RESET COMPARATOR OVERDRIVE (mV)
V+
V-
CC
_______________________________________________________________________________________
= 0.1 F
100
5.5V generated by the charge pump
Positive terminal of inverting charge-pump capacitor
Negative terminal of inverting charge-pump capacitor
-5.5V generated by the charge pump
TTL/CMOS Transmitter Inputs (T1IN and T2IN)
TTL/CMOS Receiver Outputs (R1OUT and R2OUT)
Output of the Valid Signal Detector. Asserts when no valid RS-232 levels are present on any of
the receiver inputs for 90µs.
RESET Output. RESET remains low while V
after V
Force-Off Input. Drive FORCEOFF low to shut down transmitters and on-board power supply.
This overrides AutoShutdown Plus and FORCEON (Table 1).
Force-On Input. Drive FORCEON high to override AutoShutdown Plus, keeping transmitters on
(FORCEOFF must be high) (Table 1).
RS-232 Receiver Inputs (R2IN and R1IN)
RS-232 Transmitter Outputs (T2OUT and T1OUT)
Ground
Negative terminal of voltage-doubler charge-pump capacitor
+3V to +5.5V Supply Voltage
Positive terminal of voltage-doubler charge-pump capacitor
CC
rises above the reset threshold.
1000
FUNCTION
CC
is below the reset threshold, and for 280ms (max)
1.040
1.030
1.020
1.010
1.000
0.990
0.980
0.970
0.960
-40
NORMALIZED POWER-UP RESET
-20
DELAY vs. TEMPERATURE
TEMPERATURE (°C)
0
20
40
A
60
= +25°C, unless
80
5