ST3222E ST Microelectronics, ST3222E Datasheet

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ST3222E

Manufacturer Part Number
ST3222E
Description
RS-232 DRIVERS AND RECEIVERS
Manufacturer
ST Microelectronics
Datasheet

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DESCRIPTION
The ST3222E is a 3V powered EIA/TIA-232 and
V.28/V.24 communications interface with low
power requirements, high data-rate capabilities
and enhanced electrostatic discharge (ESD)
protection to ±8kV using IEC1000-4-2 Contact
Discharge and ±15kV using the Human Body
Model. ST3222E has a proprietary low dropout
transmitter output stage providing true RS-232
performance from 3 to 5V supplies with a dual
charge pump. The charge pump requires only four
small 0.1mF external capacitors for operation form
3V supply.
The device has two receivers and two drivers. The
ST3222E features a 1 A shutdown mode that
reduces power consumption and extends battery
life in portable systems. Its receivers can remain
active in shutdown mode, allowing external
ORDERING CODES
March 2003
ST3222ECDR
ST3222EBDR
ST3222ECPR
ST3222EBPR
ST3222ECTR
ST3222EBTR
ST3222ECD
ST3222EBD
ESD PROTECTIO FOR RS-232 I/O PINS
±15KV HUMAN BODY MODEL
±8KV IEC 1000-4-2 CONTACT DISCHARGE
300 A SUPPLY CURRENT
250Kbps MINIMUM GUARENTEED DATA
RATE
6V/ s MINIMUM GUARANTEED SLEW RATE
MEET EIA/TIA-232 SPECIFICATIONS DOWN
TO 3V
AVAILABLE IN SO-18, SSOP20 AND
TSSOP20
Type
UP TO 250KBPS, RS-232 DRIVERS AND RECEIVERS
±15KV ESD-PROTECTED, 3 TO 5.5V, LOW POWER,
Temperature
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
0 to 70 °C
0 to 70 °C
0 to 70 °C
0 to 70 °C
Range
TSSOP20 (Tape & Reel)
TSSOP20 (Tape & Reel)
SSOP20 (Tape & Reel)
SSOP20 (Tape & Reel)
SO-18 (Tape & Reel)
SO-18 (Tape & Reel)
SO-18 (Tube)
SO-18 (Tube)
Package
devices such as modems to be monitored using
only 1 A supply current.
The device is guaranteed to run at data rates of
250Kbps while maintaining RS-232 output levels.
Typical applications are Notebook, Subnotebook
and
Equipment, Hand-Held Equipment, Peripherals
and Printers.
Palmtop
SOP
Computers,
50parts per tube / 20tube per box
50parts per tube / 20tube per box
TSSOP
1000 parts per reel
1000 parts per reel
1350 parts per reel
1350 parts per reel
2500 parts per reel
2500 parts per reel
Comments
ST3222E
Battery
SSOP
Powered
1/10

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ST3222E Summary of contents

Page 1

... MEET EIA/TIA-232 SPECIFICATIONS DOWN TO 3V AVAILABLE IN SO-18, SSOP20 AND TSSOP20 DESCRIPTION The ST3222E powered EIA/TIA-232 and V.28/V.24 communications interface with low power requirements, high data-rate capabilities and enhanced electrostatic discharge (ESD) protection to ±8kV using IEC1000-4-2 Contact Discharge and ±15kV using the Human Body Model ...

Page 2

... ST3222E PIN CONFIGURATION SO-18 PIN DESCRIPTION PlN N° PlN N° (SO-18) (SSOP20 TSSP20 2/10 SSOP20/TSSOP20 SYMBOL NAME AND FUNCTION EN Receiver Enable Control. Drive low for normal operation ...

Page 3

... 13.2 -0 0.3) CC Continuous T-OUT R-OUT High Z Active High Z High Z Active Active Active High Z Min. Typ. Max Min. Typ. Max. 0 Min. Typ. Max. 0.8 2 2.4 0.25 0.01 ST3222E Unit Unit kV kV Unit mA A Unit 3/10 ...

Page 4

... ST3222E TRANSMITTER ELECTRICAL CHARACTERISTICS ( 0 5.5V Typical values are referred to T Symbol Parameter V Output Voltage Swing TOUT R Transmitter Output TOUT Resistance I Output Short Circuit Current TSC I Output Leakage Current TOL RECEIVER ELECTRICAL CHARACTERISTICS ( 0 5.5V ...

Page 5

... APPLICATION CIRCUITS CAPACITANCE VALUE ( 3.0 to 3.6 0.1 4.5 to 5.5 0.047 3.0 to 5.5 0 0.1 0.1 0.33 0.33 0.47 0.47 ST3222E C4 Cbypass 0.1 0.1 0.33 0.1 0.47 0.1 5/10 ...

Page 6

... ST3222E TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specified T Figure 1 : Output Current vs Output High Voltage Figure 2 : Output Current vs Output High Voltage Figure 3 : Output Current vs Output Low Voltage 6/10 = 25°C) j Figure 4 : Output Current vs Output Low Voltage Figure 5 : Voltage Transfer Characteristics for Trasmitter Inputs Figure 6 : Receiver Input Resistance ...

Page 7

... Seating Plane TYP MAX. MIN. 2.65 0.092 0.3 0.004 2.55 0.51 0.013 0.32 0.009 11.75 0.447 7.6 0.291 1.27 10.65 0.393 0.75 0.010 ˚ (max.) 1.27 0.016 K 10 ST3222E inch TYP. MAX. 0.104 0.012 0.100 0.020 0.012 0.462 0.299 0.050 0.419 0.029 0.050 h x 45û SO18 0070768 7/10 ...

Page 8

... ST3222E DIM. MIN 0.05 A2 1.65 b 0.22 c 0.09 D 6 0˚ PIN 1 IDENTIFICATION 1 8/10 SSOP20 MECHANICAL DATA mm. TYP MAX. 2 1.75 1.85 0.38 0.25 7.2 7.5 7.8 8.2 5.3 5.6 0.65 BSC 4˚ 8˚ 0.75 0. inch MIN. TYP. 0.002 0.065 0.069 0.009 0.004 0.272 0.283 0.291 0.307 0.197 0.209 0.0256 BSC 0˚ 4˚ ...

Page 9

... PIN 1 IDENTIFICATION 1 mm. TYP MAX. MIN. 1.2 0.15 0.002 1 1.05 0.031 0.30 0.007 0.20 0.004 6.5 6.6 0.252 6.4 6.6 0.244 4.4 4.48 0.169 8˚ 0.60 0.75 0.018 ST3222E inch TYP. MAX. 0.047 0.004 0.006 0.039 0.041 0.012 0.0079 0.256 0.260 0.252 0.260 0.173 0.176 0.0256 BSC 0˚ 8˚ 0.024 0.030 0087225C 9/10 ...

Page 10

... ST3222E Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...

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