SN75C3223PW ,3-V to 5-V Multichannel RS-232 Compatible Line Driver/Receiver SLLS538B − JUNE 20 ..
SN75C3223PWR ,3-V to 5-V Multichannel RS-232 Compatible Line Driver/Receivermaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SN75C3232 ,3-V To 5.5-V Multichannel RS-232 Compatible Line Driver/Receivermaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SN75C3232D ,3-V To 5.5-V Multichannel RS-232 Compatible Line Driver/Receiverlogic diagram (positive logic)11 14DIN1DOUT110 7DIN2 DOUT212 13ROUT1 RIN19 8ROUT2 RIN22POST OFFICE ..
SN75C3232DBR ,3-V To 5.5-V Multichannel RS-232 Compatible Line Driver/Receiver SLLS540B − JULY 2002 ..
SN75C3232DBRG4 , 3-V TO 5.5-V MULTICHANNEL RS-232 COMPATIBLE LINE DRIVER/RECEIVER
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SN75C3223DBR-SN75C3223DWR-SN75C3223PW-SN75C3223PWR
3-V to 5-V Multichannel RS-232 Compatible Line Driver/Receiver
Accept 5-V Logic Input With 3.3-V Supply Latch-Up Performance Exceeds 100 mA PerJESD 78, Class II RS-232 Bus-Pin ESD Protection Exceeds±15 kV Using Human-Body Model (HBM)
Applications
− Battery-Powered Systems, PDAs,
Notebooks, Laptops, Palmtop PCs, and
Hand-Held Equipment
description/ordering informationThe SN65C3223 and SN75C3223 consist of two line drivers, two line receivers, and a dual charge-pump circuit
with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The devices provide the
electrical interface between an asynchronous communication controller and the serial-port connector. The
charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. The devices
operate at data signaling rates up to 1 Mbit/s and a driver output slew rate of 24 V/µs to 150 V/µs
Flexible control options for power management are available when the serial port is inactive. The
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF
is set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1 µA.
Disconnecting the serial port or turning off the peripheral drivers causes auto-powerdown to occur.
Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown enabled,
the device is activated automatically when a valid signal is applied to any receiver input. The INVALID output
is used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any
receiver input voltage is greater than 2.7 V or less than −2.7 V or has been between −0.3 V and 0.3 V for less
than 30 µs. INVALID is low (invalid data) if the receiver input voltage is between −0.3 V and 0.3 V for more than
30 µs. Refer to Figure 4 for receiver input levels.
ORDERING INFORMATION†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
C1−
C2+
C2−
DOUT2
RIN2
ROUT2
DOUT1
RIN1
ROUT1
FORCEON
DIN1
DIN2
INVALID
