MAX3228AE MAXIM [Maxim Integrated Products], MAX3228AE Datasheet - Page 5

• Manufacturer Part Number: MAX3228AE
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
MAX3228AE
MAX3228E/
C2, C3, C4,
D2, D3, D4,
B2, B3, B4,
CC
A6, B6
20
18
16
14
12
10
8
6
4
2
0
= +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ and C
D5
C1
A1
A2
A3
A4
A5
B1
B5
—
2.5
vs. SUPPLY VOLTAGE (MAX3229E)
OPERATING SUPPLY CURRENT
3.0
PIN
MAX3229AE
MAX3229E/
C2, C3, C4,
D2, D3, D4,
B2, B3, B4,
SUPPLY VOLTAGE (V)
B6, D6,
3.5
E4, E6
A2
A3
A4
D5
C1
A1
A5
A6
B1
B5
_______________________________________________________________________________________
4.0
RS-232 Transceivers in UCSP and WLP
4.5
FORCEON
±15kV ESD-Protected +2.5V to +5.5V
NAME
T_IN
V
C2+
N.C.
N.C.
C1+
C2-
5.0
V+
V
V-
CC
L
5.5
Supply Voltage. +2.5V to +5.5V supply voltage
Inverting Charge-Pump Capacitor Positive Terminal
Inverting Charge-Pump Capacitor Negative Terminal
Negative Charge-Pump Output. -5.5V/-4.0V generated by charge pump.
Logic Voltage Input. Logic-level input for receiver outputs and transmitter inputs.
Connect V
Transmitter Input(s)
Positive Charge-Pump Output. +5.5V/+4.0V generated by charge pump. If charge
pump is generating +4.0V, the device has switched from RS-232 compliant to RS-232
compatible mode.
No Connection. The MAX3228AE/MAX3229AE are not populated with solder bumps at
these locations. The MAX3228AE/MAX3229AE are populated with electrically isolated
bumps at these locations.
Active-High FORCEON Input. Drive FORCEON high to override automatic circuitry,
keeping transmitters and charge pumps on. Pulls itself high internally if not connected.
No Connection. These locations are populated with solder bumps, but are electrically
isolated.
Positive Regulated Charge-Pump Capacitor Positive Terminal
Typical Operating Characteristics (continued)
10
-2
-4
-6
-8
8
6
4
2
0
2.5
TRANSMITTER OUTPUT VOLTAGE vs.
L
SUPPLY VOLTAGE (V
to the system logic supply voltage or V
3.0
SUPPLY VOLTAGE (V)
3.5
V
OL
4.0
V
OH
CC
4.5
RISING)
5.0
FUNCTION
5.5
L
, T
A
10
-2
-4
-6
-8
8
6
4
2
0
CC
= +25°C, unless otherwise noted.)
2.5
TRANSMITTER OUTPUT VOLTAGE vs.
if no logic supply is required.
SUPPLY VOLTAGE (V
3.0
Pin Description
SUPPLY VOLTAGE (V)
3.5
V
OL
4.0
V
OH
CC
4.5
FALLING)
5.0
5.5
5