Document
ST3241EB ST3241EC
±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down
Features
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ESD protection for RS-232 I/O pins: ±8 kV IEC 1000-4-2 contact discharge ±15 kV human body model 1 µA supply current achieved when in autopower-down 250 kbps minimum guaranteed data rate Guaranteed 6 V/ms slew rate range Guaranteed mouse drive ability 0.1 µF external capacitors Meets EIA/TIA-232 specifications down to 3 V Available in SSOP-28 package It is a complete serial port (3 drivers, 5 receivers) intended for notebook or sub-notebook computers. Receivers R1 and R2 have extra outputs in addition to their standard outputs. These extra outputs are always active.
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SSOP-28
Description
The ST3241E device consists of 3 drivers, 5 receivers and a dual charge-pump circuit. The device meets the requirements of EIA/TIA and V.28/V.24 communication standards providing high data rate capability and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±8 kV using IEC 1000-4-2 contact discharge and ±15 kV using the human body model. The receiver R2 is always active to implement a wake-up feature for serial port. The ST3241E has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0 V to 5.5 V supply with a dual charge pump. The device is guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels. Table 1. Device summary
Temperature range 0 to 70°C –40 to 85°C
Typical applications are in notebooks, subnotebooks, palmtop computers, battery-powered equipment, hand-held equipment, peripherals and printers.
Order code ST3241ECPR ST3241EBPR
Package SSOP-28 (tape and reel) SSOP-28 (tape and reel)
Packaging 1350 parts per reel 1350 parts per reel
September 2010
Doc ID 9066 Rev 5
1/13
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Datasheet pdf - http://www.DataSheet4U.co.kr/
Contents
ST3241EB - ST3241EC
Contents
1 2 3 4 5 6 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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Doc ID 9066 Rev 5
Datasheet pdf - http://www.DataSheet4U.co.kr/
ST3241EB - ST3241EC
Pin configuration
1
Pin configuration
Figure 1. Pin configuration
CS10800
Table 2.
Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Pin description
Symbol
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Name and function Positive terminal of inverting charge pump capacitor Negative termi.