DS276 Maxim Integrated Products, DS276 Datasheet - Page 4

• Manufacturer Part Number: DS276
• Description: IC TXRX LO-PWR DPLX RS232 8-DIP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of DS276

• Number Of Drivers/receivers: 1/1
• Protocol: RS232
• Voltage - Supply: 2.7 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

two similar devices over short distances, and into larger loads than the 3 k =RS-232 standard (Figure 2).
If V
devices is possible, although of course the output voltage swing of the DS276 remains below the RS-232
specification. The V
5V OPERATION
The use of a single 5V supply for V
produce reliable communication with standard RS-232 devices, although the DS276 output voltage
swings are below the RS-232 minimum (Figure 3).
Increasing the magnitude of the voltage to V
voltage levels.
SINGLE 3V OPERATION Figure 2
SINGLE 5V OPERATION Figure 3
(not true RS-232)
"STEALING" NEGATIVE SUPPLY Figure 4
drv+
(See Note 3)
(See Note 1 and 3)
(See Note 2)
is increased to 5V, and V
drv-
supply can be derived using the “stealing” technique shown in Figure 4.
drv-
decreased (to less than -2V) communication with standard RS-232
CC
and V
drv+
drv+
4 of 11
to 10 volts or more will result in “true” RS-232 output
, and V
drv-
derived using the circuit in Figure 4 can
DS276