RS - 232 Transmitters / Receivers Linear Integrated Circuits ICl3232CBNZ

Product Specification

RS - 232 Transmitters / Receivers Linear Integrated Circuits ICl3232CBNZ

ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243

One Microamp Supply-Current, +3V to +5.5V, 250kbps, RS-232 Transmitters/Receivers

The Intersil ICL32XX devices are 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 notebook and laptop computers where the low operational, and even lower standby, power consumption is critical. Efficient on-chip charge pumps, coupled with manual and automatic powerdown functions (except for the ICL3232), reduce 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. This family is fully compatible with 3.3V only systems, mixed 3.3V and 5.0V systems, and 5.0V only systems.

The ICL324X are 3-driver, 5-receiver devices that provide a complete serial port suitable for laptop or notebook computers. Both devices also include noninverting alwaysactive receivers for “wake-up” capability.

The ICL3221, ICL3223 and ICL3243, feature an automatic powerdown function which powers down the on-chip power-supply and driver circuits. This occurs when an attached peripheral device is shut off or the RS-232 cable is removed, conserving system power automatically without changes to the hardware or operating system. These devices power up again when a valid RS-232 voltage is applied to any receiver input.

Features

• Pb-Free Plus Anneal Available as an Option (RoHS Compliant) (See Ordering Info)

• 15kV ESD Protected (Human Body Model)

• Drop in Replacements for MAX3221, MAX3222, MAX3223, MAX3232, MAX3241, MAX3243, SP3243

• ICL3221 is Low Power, Pin Compatible Upgrade for 5V MAX221

• ICL3222 is Low Power, Pin Compatible Upgrade for 5V MAX242, and SP312A

• ICL3232 is Low Power Upgrade for HIN232/ICL232 and Pin Compatible Competitor Devices

• RS-232 Compatible with VCC = 2.7V

• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V

• Latch-Up Free

• On-Chip Voltage Converters Require Only Four External 0.1µF Capacitors

• Manual and Automatic Powerdown Features (Except ICL3232)

• Guaranteed Mouse Driveability (ICL324X Only)

• Receiver Hysteresis For Improved Noise Immunity

• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps

• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/µs

• 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

  - Modems, Printers and other Peripherals

  - Digital Cameras

  - Cellular/Mobile Phones

Absolute Maximum Ratings

VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V

V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V

V- to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V

V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V

Input Voltages

    T_IN, FORCEOFF, FORCEON, EN, SHDN . . . . . . . . . -0.3V to 6V

    R_IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V

Output Voltages

    T_OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±13.2V

    R_OUT, INVALID. . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V_CC +0.3V

Short Circuit Duration

    T_OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous

ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table

Operating Conditions

Temperature Range

    ICL32XXCX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C

    ICL32XXIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C

Thermal Information

Thermal Resistance (Typical, Note 3)                          θ_JA (°C/W)

    16 Ld PDIP Package* . . . . . . . . . . . . . . . . . . . . . . . 90

    18 Ld PDIP Package* . . . . . . . . . . . . . . . . . . . . . . . 80

    20 Ld PDIP Package* . . . . . . . . . . . . . . . . . . . . . . . 77

    16 Ld Wide SOIC Package . . . . . . . . . . . . . . . . . . . 100

    16 Ld Narrow SOIC Package. . . . . . . . . . . . . . . . . . 115

    18 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 75

    28 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 75

    16 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 135

    20 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 122

    16 Ld TSSOP Package . . . . . . . . . . . . . . . . . . . . . . 145

    20 Ld TSSOP Package . . . . . . . . . . . . . . . . . . . . . . 140

    28 Ld SSOP and TSSOP Packages . . . . . . . . . . . . 100

Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C

Maximum Storage Temperature Range. . . . . . . . . . .-65°C to 150°C

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C

    (SOIC, SSOP, TSSOP - Lead Tips Only)

*Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications.

NOTE: 3. θ_JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

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