ICL3237E

±15KV ESD, 1µA Supply-Current, +3V to +5.5V, 250kbps or 1000kbps, RS-232 Transmitters/Receivers

Product Status: 量産中

OVERVIEW

The ICL3237E contains 3.0V to 5.5V powered RS-232 transmitters/receivers that meet 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 cell phones, PDAs, Palmtops, and notebook and laptop computers where the low operational power and even lower standby power consumption is critical. Efficient on-chip charge pumps coupled with the manual powerdown function reduce the standby supply current to a 10nA trickle. Small footprint packaging and the use of small, low value capacitors ensure board space savings. Data rates greater than 1Mbps (MBAUD = VCC) are ensured at worst case load conditions. The ICL3237E is fully compatible with 3.3V only systems, mixed 3.3V and 5.0V systems, and 5.0V only systems.

The ICL3237E is a 5 driver, 3 receiver device that also includes a noninverting always-active receiver for “wake-up” capability.

Table 1 summarizes the features of the ICL3237E. Application Note AN9863 summarizes the features of each device comprising the ICL32xx RS-232 3V family.

KEY FEATURES

    • Pb-free (RoHS compliant)
    • ESD protection for RS-232 I/O pins to ±15kV (IEC61000)
    • Pin compatible replacement for MAX3237E
    • Pin selectable, ensured data rate: 250kbps/1Mbps
    • Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
    • RS-232 compatible with VCC = 2.7V
    • Latch-up free
    • On-chip voltage converters require only four external capacitors
    • Manual powerdown feature
    • Flow through pinout
    • Rx and Tx hysteresis for improved noise immunity
    • Rx active in powerdown; separate Rx Enable pin
    • Guaranteed minimum slew rate: 6V/µs or 24V/µs
    • Wide power supply range: Single +3V to +5.5V
    • Low supply current in powerdown state: 10nA

PARAMETRICS

Parameters
ICL3237E
Basic Information
Production Status
量産中
Rx数
3
Tx数
5
高ESD保護
Yes
データレート
0.5/1.0 Mbps
電源電圧Vcc (V) (min)
3
電源電圧Vcc (V) (max)
5.5
手動シャットダウン
Yes
自動シャットダウン
No
Rxディセーブル
Yes
容量値
0.1 µF
ISイネーブル (mA)
0.3
ISディセーブル
0.01 µA
認定レベル
Standard
電源電圧Vcc範囲 (V)
3 to 5.5
サンプル提供
YES
温度範囲
-40 to +85

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