NOT RECOMMENDED FOR NEW DESIGNS
RECOMMENDED REPLACEMENT PART
ICL3222EIVZ
ISL83385E
DATASHEET
FN6001
Rev 4.00
January 16, 2005
±15kV ESD Protected, +3V to +5.5V, 1 Microamp, 250kbps,
RS-232 Transmitters/Receivers
The Intersil ISL83385E contains 3.0V to 5.5V powered
RS-232 transmitters/receivers which meet ElA/TIA-232 and
V.28/V.24 specifications, even at VCC = 3.0V. Targeted
applications are PDAs, Palmtops, and notebook and laptop
computers where the low operational, and even lower
standby, power consumption is critical. Efficient on-chip
charge pumps, coupled with a manual powerdown function
reduces the standby supply current to a 1A trickle. Small
footprint packaging, and the use of small, low value
capacitors ensure board space savings as well. Data rates
greater than 250kbps are guaranteed at worst case load
conditions. This device is fully compatible with 3.3V only
systems, mixed 3.3V and 5.0V systems, and 5.0V only
systems.
The single pin powerdown function (SHDN = 0) disables all
the transmitters, while shutting down the charge pump to
minimize supply current drain.
Table 1 summarizes the features of the ISL83385E, while
Application Note AN9863 summarizes the features of each
device comprising the 3V RS-232 family.
ISL83385ECA
PART
MARKING
PACKAGE
PKG.
DWG. #
0 to 70
20 Ld SSOP
M20.209
0 to 70
20 Ld SSOP
(Pb-free)
M20.209
ISL83385ECAZ 83385ECAZ
(See Note)
• Low Power, Pin Compatible Upgrade for MAX3385E
• Single SHDN Pin Disables Transmitters
• RS-232 Compatible Outputs at 2.7V
• Receivers Active in Powerdown
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• Latch-Up Free
• On-Chip Voltage Converters Require Only Four External
0.1F Capacitors
• Receiver Hysteresis For Improved Noise Immunity
• Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 0.3mA
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/s
• Wide Power Supply Range . . . . . . . Single +3V to +5.5V
• Pb-Free Plus Anneal Available (RoHS Compliant)
TEMP.
RANGE
(°C)
83385ECA
• ESD Protection for RS-232 I/O Pins to 15kV (IEC61000)
• Low Supply Current in Powerdown State. . . . . . . . . .
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