MAX3225EETP-T Maxim Integrated, MAX3225EETP-T Datasheet - Page 8

• Manufacturer Part Number: MAX3225EETP-T
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX3224E, MAX3225E, MAX3226E, MAX3227E, MAX3244E, MAX3245Er

Specifications of MAX3225EETP-T

• 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
• Mounting Style: SMD/SMT
• Function: Transceiver
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 2
• Number Of I/os: 8
• Number Of Receivers: 2
• Propagation Delay Time Ns: 0.15 us
• Shutdown: Yes

MAX3226E/MAX3227E/MAX3244E/MAX3245E
8
The MAX3224E–MAX3227E/MAX3244E/MAX3245E’s
internal power supply consists of a regulated dual
charge pump that provides output voltages of +5.5V
(doubling charge pump) and -5.5V (inverting charge
pump), over the +3.0V to +5.5V range. The charge
pump operates in discontinuous mode: if the output
voltages are less than 5.5V, the charge pump is
±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
_______________Detailed Description
TQFN
12
16
17
18
—
—
—
MAX3224E
MAX3225E
Dual Charge-Pump Voltage Converter
TSSOP
SSOP/
DIP/
14
18
19
20
—
—
—
TQFN
11
12
13
—
—
—
9
MAX3226E
MAX3227E
TSSOP
SSOP/
12
14
15
16
—
—
—
PIN
SO/ SSOP/ TSSOP
MAX3244E
MAX3245E
23
25
26
22
20
—
—
enabled; if the output voltages exceed 5.5V, the
charge-pump is disabled. Each charge pump requires
a flying capacitor (C1, C2) and a reservoir capacitor
(C3, C4) to generate the V+ and V- supplies.
The READY output (MAX3224E–MAX3227E) is low
when the charge pumps are disabled in shutdown
mode. The READY signal asserts high when V- goes
below -4V.
MAX3245E
18, 22, 28,
6, 10, 14,
32, 36
TQFN
25
27
29
24
21
—
Pin Description (continued)
FORCEON
R2OUTB
NAME
GND
V CC
N.C.
EP
Force-On Input, Active High.
Drive high to override
AutoShutdown Plus, keeping
transmitters and receivers on
(
(Table 1).
Ground
+3.0V to +5.5V Single Supply
Voltage
Force-Off Input, Active Low.
Drive low to shut down
transmitters, receivers
(except R2OUTB), and
charge pump. This overrides
AutoShutdown Plus and
FORCEON (Table 1).
TTL/CMOS Noninverting
Complementary Receiver
Outputs. Always active.
No Connection. Not internally
connected.
Exposed Pad. Solder the
exposed pad to the ground
plane or leave unconnected.
FUNCTION
must be high)
Maxim Integrated