MAX3225ECPP+ Maxim Integrated, MAX3225ECPP+ Datasheet - Page 15

• Manufacturer Part Number: MAX3225ECPP+
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX3224E, MAX3225E, MAX3226E, MAX3227E, MAX3244E, MAX3245Er

Specifications of MAX3225ECPP+

• Data Rate: 1 Mbps
• Operating Supply Voltage: 3 V to 5.5 V
• Supply Current: 1 mA
• Operating Temperature Range: 0 C to + 70 C
• Function: Transceiver
• Number Of Drivers: 2
• Number Of I/os: 8
• Number Of Receivers: 2
• Propagation Delay Time Ns: 0.15 us
• Shutdown: Yes

Maxim Integrated
drove all serial mice tested and met their respective
current and voltage requirements. The MAX3244/
MAX3245 dual charge pump ensures the transmitters
will supply at least ±5V during worst-case conditions.
Figure 11a shows the transmitter output voltages under
increasing load current. Figure 11b shows a typical
mouse connection.
Table 4. Logic Family Compatibility with Various Supply Voltages
Table 5. 3.0V to 5.5V Powered RS-232 Transceivers from Maxim
POWER-SUPPLY
MAX3241
MAX3243
MAX3244
MAX3245
MAX3232
MAX3222
MAX3223
MAX3224
MAX3225
MAX3221
MAX3226
MAX3227
RS-232 Transceivers with AutoShutdown Plus
VOLTAGE (V)
PART
SYSTEM
3.3
5
5
MAX3224–MAX3227/MAX3244/MAX3245
1µA Supply Current, 1Mbps, 3.0V to 5.5V,
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
+3.0 to +5.5
VOLTAGE
SUPPLY
RANGE
(V)
V
CC
VOLTAGE
SUPPLY
(V)
3.3
3.3
5
Tx/Rx
NO.
OF
3/5
3/5
3/5
3/5
2/2
2/2
2/2
2/2
2/2
1/1
1/1
1/1
Compatible with all CMOS families
Compatible with all TTL and CMOS families
Compatible with ACT and HCT CMOS, and with AC, HC, or CD4000 CMOS
CURRENT
SUPPLY
(µA)
300
300
300
1
1
1
1
1
1
1
1
1
The MAX3224–MAX3227/MAX3244/MAX3245 can
directly interface with various 5V logic families, includ-
ing ACT and HCT CMOS. See Table 4 for more informa-
tion on possible combinations of interconnections.
Table 5 lists other Maxim 3.0V to 5.5V powered trans-
ceivers.
Interconnection with 3V and 5V Logic
Shutdown
Auto-
Plus
Yes
Yes
Yes
Yes
Yes
Yes
COMPATIBILITY
—
—
—
—
—
—
Shutdown
Auto-
Yes
Yes
Yes
—
—
—
—
—
—
—
—
—
GUARANTEED
DATA RATE
(bps)
120k
120k
250k
120k
120k
120k
250k
120k
250k
1M
1M
1M
15