ISL83220E

±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers

Product Status: Mass Production

OVERVIEW

The ISL83220E is a 3.0V to 5.5V powered RS-232 transmitter/receiver that meets ElA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. It provides ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). Targeted applications are PDAs, Palmtops, and notebook and laptop computers in which the low operational power consumption and even lower standby power consumption is critical. Efficient on-chip charge pumps, coupled with a manual powerdown function, reduce the standby supply current to a µA trickle. Small footprint packaging and the use of small, low value capacitors ensure board space savings. Data rates greater than 250kbps are ensured at worst case load conditions. The ISL83220E is fully compatible with 3.3V only systems, mixed 3.3V and 5.0V systems, and 5.0V only systems.

KEY FEATURES

    • Pb-free (RoHS compliant)
    • ESD protection for RS-232 I/O pins to ±15kV (IEC61000)
    • Drop-in replacement for SP3220E
    • Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
    • RS-232 compatible outputs at 2.7V
    • Latch-up free
    • On-chip voltage converters require only four external 0.1µF capacitors
    • Manual powerdown feature with receivers active
    • Separate receiver enable pin
    • RX and TX hysteresis for improved noise immunity
    • Ensured minimum data rate: 250kbps
    • Ensured minimum slew rate: 6V/µs
    • Wide power supply range: Single +3V to +5.5V
    • Low supply current in powerdown state: 1µA

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL83220E
Basic Information
Production Status
Mass Production
# of Rx
1
# of Tx
1
High ESD Protection
Yes
Data Rate
0.5 Mbps
Supply Voltage Vcc (Min) (V)
3
Supply Voltage Vcc (Max) (V)
5.5
Manual Shutdown
Yes
Auto Shutdown
No
Rx Disable
Yes
Capacitance Value
0.1 µF
IS Enabled (mA)
0.3
IS Disabled
1 µA
Qualification Level
Standard
Supply Voltage Vcc Range (V)
3 to 5.5
Can Sample
YES
Temperature Range
-40 to +85

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