SP3222EB
SP3222EB is True +3.0V to +5.5V RS-232 Transceiver manufactured by MaxLinear.
SP3222EB/SP3232EB
Data Sheet True +3.0V to +5.5V RS-232 Transceivers
General Description
The SP3222EB and SP3232EB series are RS-232 transceiver solutions intended for portable or hand-held applications such as notebook or laptop puters. The SP3222EB / SP3232EB series has a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump allows the SP3222EB / SP3232EB series to deliver true RS-232 performance from a single power supply ranging from 3.0V to 5.5V. The SP3222EB / SP3232EB are 2-driver / 2-receiver devices. The ESD tolerance of the SP3222EB / SP3232E devices is over ±15k V for both Human Body Model and IEC61000-4-2 Air discharge test methods. The SP3222EB device has a low-power shutdown mode where the devices’ driver outputs and charge pumps are disabled. During shutdown, the supply current falls to less than 1µA.
Features
- Meets true EIA / TIA-232-F standards from a 3.0V to
5.5V power supply
- 250kbps transmission rate under load
- 1μA low power shutdown with receivers active
(SP3222EB)
- Interoperable with RS-232 down to a 2.7V power source
- Enhanced ESD specifications:
±15k V Human Body Model ±15k V IEC61000-4-2 Air Discharge ±8k V IEC61000-4-2 Contact Discharge
Ordering Information
- page 18
Selection Table
Table 1: Selection Table
Device SP3222EB SP3232EB
Power Supplies 3.0V to 5.5V 3.0V to 5.5V
RS-232 Drivers
2 2
RS-232 Receivers
2 2
External ponents 4 Capacitors 4 Capacitors
Shutdown Yes No
TTL 3-State
Yes No
# of Pins 20 16
Pinouts
EN 1 C1+...
