MAX3316CAE-T Maxim Integrated, MAX3316CAE-T Datasheet - Page 11

• Manufacturer Part Number: MAX3316CAE-T
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX3316, MAX3317, MAX3318, MAX3319r

Specifications of MAX3316CAE-T

• Data Rate: 460 Kbps
• Operating Supply Voltage: 2.5 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: 2
• Number Of I/os: 8
• Number Of Receivers: 2
• Propagation Delay Time Ns: 0.175 us
• Shutdown: No

Figure 4b. AutoShutdown Plus, INVALID , and READY Timing Diagram
Figure 5. AutoShutdown Plus Initial Turn-On to Wake Up a
Mouse or Another System
MANAGEMENT
OUTPUT
OUTPUT
INVALID
*MAX3318/MAX3319
TRANSMITTER
TRANSMITTER
READY
POWER-
UNIT
RECEIVER
OUTPUTS
INPUTS
INPUTS
*V
V
V
CC
CC
V+
CC
V-
0
0
0
t
INVL
MASTER SHDN LINE
______________________________________________________________________________________
FORCEOFF
MAX3318
MAX3319
0.1µF
t
INVH
FORCEON
RS-232-Compatible Transceivers
1MΩ
t
AUTOSHDN
t
C2, C3, C4, and C
(C1 to other capacitors).
When using the minimum-required capacitor values,
make sure the capacitor value does not degrade exces-
sively with temperature. If in doubt, use capacitors with
a higher nominal value. The capacitor’s equivalent
series resistance (ESR), which usually rises at low tem-
peratures, influences the amount of ripple on V+ and V-.
In most circumstances, a 0.1µF bypass capacitor is
adequate. In applications that are sensitive to power-
supply noise, decouple V
of the same value as charge pump capacitor C1.
Connect bypass capacitors as close to the IC as possible.
Figure 2 shows two transmitter outputs when exiting
shutdown mode. As they become active, the two trans-
mitter outputs are shown going to opposite RS-232-
compatible levels (one transmitter input is high, the
other is low). Each transmitter is loaded with 3kΩ in par-
WU
2.5V, 1µA, 460kbps,
t
AUTOSHDN
BYPASS
Transmitter Outputs when
Power-Supply Decoupling
CC
to maintain proper ratios
to ground with a capacitor
Exiting Shutdown
t
WU
}
INVALID
REGION
11