January 2009 Rev 3 1/16
16
STLV3243EB
± 15 kV ESD protected 2.3 to 5.5 V, 400 kbps,
RS-232 transceiver with auto-power-down
Features
■ ESD protection for RS-232 I/O pins:
– ± 8 kV IEC 1000-4-2 contact discharge
– ± 15 kV human body model
■ 1 mA supply current achieved when in auto-
power-down
■ 250 kbps minimum guaranteed data rate
■ Guaranteed 6 V/ms slew rate range
■ Guaranteed mouse drive ability
■ 0.1 µF external capacitors
■ Meet EIA/TIA-562 specifications
■ Available in Flip-Chip28 package
Description
The STLV3243EB device consists of 3 drivers, 5
receivers and a dual charge-pump circuit. All
transmitter outputs and receiver inputs are
protected up to ±8 kV USING IEC 1000-4-2
contact discharge and ±15 kV using the human
body model. The receiver R2 is always active to
implement a wake-up feature for serial port. The
device is guaranteed to run at data rates of 250
kbps while maintaining RS-562 output levels.
The auto-power-down feature operates when
FORCEON is low and FORCEOFF
is high. During
this operation mode, if the device does not sense
a valid RS-562 signal, the driver outputs are
disabled. If FORCEOFF
is set low, both drivers
and receivers (expert R2B) are shut off, and
supply current is reduced to 1 µA. Disconnecting
the serial port or turning off the peripheral drives
causes the auto-power-down condition to occur.
Auto-power-down can be disabled when
FORCEON and FORCEOFF
are high, and this
should be done when driving a serial mouse. With
auto-power-down enabled, the device is
automatically activated when a valid signal is
applied to any receiver input.
Typical applications are notebooks, PDAs, smart-
phones, hand-held equipment, palmtop
computers, peripherals, battery-powered
equipment, and printers.
Flip-Chip28
Table 1. Device summary
Order code Temperature range Package Packaging
STLV3243EBJR - 40 to 85 °C Flip-Chip28 (6x5 mm) 2500 parts per reel
www.st.com
Obsolete Product(s) - Obsolete Product(s)
Obsolete Product(s) - Obsolete Product(s)
