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ICL3221

Renesas
Part Number ICL3221
Manufacturer Renesas
Description RS-232 Transmitters/Receivers
Published Apr 3, 2018
Detailed Description Datasheet ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243 One Microamp Supply-Current, +3V to +5.5V, 250kbps, RS-2...
Datasheet PDF File ICL3221 PDF File

ICL3221
ICL3221

Overview
Datasheet ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243 One Microamp Supply-Current, +3V to +5.
5V, 250kbps, RS-232 Transmitters/Receivers The ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243 (ISL32xx) devices are 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.
Targeted applications are PDAs, notebook, and laptop computers where the low operational power consumption and even lower standby power consumption are critical.
Efficient on-chip charge pumps, coupled with manual and automatic power-down 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 ensured 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 always-active receivers for “wake-up” capability.
The ICL3221, ICL3223 and ICL3243 feature an automatic powerdown function that powers down the on-chip power-supply and driver circuits.
Power-down 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.
Table 1 on page 6 summarizes the features of the devices represented by this datasheet, while Application Note AN9863 summarizes the features of each device comprising the ICL32xx 3V family.
Related Literature For a full list of related documents, visit our website: • ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, and ICL3243 device pages Features • RoHS Compliant • 15kV ESD protected (Human Body Model) •...


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