MAX3110EEWI-T Maxim Integrated, MAX3110EEWI-T Datasheet - Page 26

• Manufacturer Part Number: MAX3110EEWI-T
• Description: UART Interface IC
• Manufacturer: Maxim Integrated
• Type: SPI/MICROWIRE-Compatible UART with Integrated ESD-Protected RS-232 Transceiverr

Specifications of MAX3110EEWI-T

• Number Of Channels: 1
• Data Rate: 250 Kbps
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 4.5 V
• Supply Current: 0.6 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: SOIC-28 Wide
• Description/function: SPI/MICROWIRE-Compatible UART with integrated ESD-protected RS-232 transceiver
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Propagation Delay Time Ns: 150 ns

MAX3110E/MAX3111E
26
SPI/MICROWIRE-Compatible UART and ±15kV ESD-
Protected RS-232 Transceivers with Internal Capacitors
Table 9. Logic-Family Compatibility with
Various Supply Voltages
Figure 14. IR and RS-232 Typical Operating Circuit
POWER-SUPPLY
(MAX3110E)
(MAX3111E)
(MAX3111E)
VOLTAGE
LOGIC
(V)
3.3
5
5
V
CC
VOLTAGE
SUPPLY
(V)
3.3
3.3
5
μP
NON-IrDA
UART
232 SHUTDOWN
CTS
RTS
RX
TX
Compatible with all
TTL and CMOS fami-
lies
Compatible with all
CMOS families
Compatible with ACT
and HCT CMOS, and
with AC, HC, or
CD4000 CMOS
100k
COMPATIBILITY
232 ACTIVE
V
CC
IRQ
V
SHDN
DIN
DOUT
SCLK
CS
T1IN
R1OUT
R2OUT
T2IN
C1+
C1-
CC
GND
MAX3110E
MAX3111E
MODE
UART
IrDA
IN
T1OUT
T2OUT
R1IN
R2IN
C2+
C2-
RX
X1
X2
TX
V+
V-
An IR and RS-232 typical operating circuit is shown in
Figure 14. Since the MAX3110E/MAX3111E’s internal
UART has IrDA capability, a standard IR transceiver
(the MAX3120) can be used to provide the IrDA com-
munication. The two-driver/two-receiver RS-232 trans-
ceiver can be used with a software UART to provide
RS-232 communication.
The MAX3110E/MAX3111E support a common multi-
drop communication technique referred to as 9-bit
mode. In this mode, the parity bit is set to indicate a
message that contains a header with a destination
address. The MAX3110E/MAX3111E’s parity mask can
be set to generate interrupts for this condition.
Operating a network in this mode reduces the process-
ing overhead of all nodes by enabling the slave con-
trollers to ignore most message traffic. This relieves the
remote processor to handle more useful tasks.
RS-232 I/O
RXD
MAX3120
TXD
IrDA
I/O
9-Bit Networks
Maxim Integrated