ISL83386E Datasheet, PDF (1/10 Pages) Intersil Corporation – ±15kV ESD Protected, +3V to +5.5V, 1 Microamp, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply

®
Data Sheet
January 2003
ISL83386E
FN6034
±15kV ESD Protected, +3V to +5.5V,
1 Microamp, 250kbps, RS-232
Transmitters/Receivers with Separate
Logic Supply
The ISL83386E contains 3.0V to 5.5V powered RS-232
transmitters/receivers which meet ElA/TIA-232 and
V.28/V.24 specifications, even at V_CC = 3.0V. Targeted
applications are PDAs, Palmtops, and cell phones 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 1µA 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.
The ISL83386E features a V_L pin that adjusts the logic pin
(see Pin Descriptions table) output levels and input
thresholds to values compatible with the V_CC powering the
external logic (e.g., a UART).
The single pin powerdown function (SHDN = 0) disables all
the receiver and transmitter outputs, while shutting down the
charge pump to minimize supply current drain.
Table 1 summarizes the features of the ISL83386E, while
Application Note AN9863 summarizes the features of each
device comprising the 3V RS-232 family.
Ordering Information
PART
NUMBER
(BRAND)
TEMP.
RANGE (^oC)
ISL83386EIV
(83386EIV)
-40 to 85
ISL83386EIV-T
(83386EIV)
-40 to 85
PACKAGE
20 Ld TSSOP
Tape and Reel
PKG. NO.
M20.173
M20.173
Features
• V_L Pin for Compatibility with Mixed Voltage Systems
• ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)
• Low Power, Pin Compatible Upgrade for MAX3386E and
SP3203E
• Single SHDN Pin Disables Transmitters and Receivers
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• On-Chip Charge Pumps Require Only Four External
0.1µF Capacitors
• Receiver Hysteresis For Improved Noise Immunity
• Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 300µA
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
• Wide Power Supply Range. . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State . . . . . . . . . < 1µA
Applications
• Any System Requiring RS-232 Communication Ports
- Battery Powered, Hand-Held, and Portable Equipment
- Laptop Computers, Notebooks, Palmtops
- Digital Cameras
- PDA’s and PDA Cradles
- Cellular/Mobile Phones
PART
NUMBER
ISL83386E
TABLE 1. SUMMARY OF FEATURES
NO. OF NO. OF DATA RATE Rx. ENABLE
Tx.
Rx.
(kbps) FUNCTION?
V_L LOGIC
SUPPLY PIN?
MANUAL
AUTOMATIC
POWER- DOWN? POWERDOWN FUNCTION?
3
2
250
NO
YES
YES
NO
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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