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ST3222E
15KV ESD-PROTECTED, 3 TO 5.5V, LOW POWER, UP TO 250KBPS, RS-232 DRIVERS AND RECEIVERS
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s s
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ESD PROTECTIO FOR RS-232 I/O PINS 15KV HUMAN BODY MODEL 8KV IEC 1000-4-2 CONTACT DISCHARGE 300A 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
SOP
SSOP
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 1A 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
Type ST3222ECD ST3222EBD ST3222ECDR ST3222EBDR ST3222ECPR ST3222EBPR ST3222ECTR ST3222EBTR Temperature Range 0 to 70 C -40 to 85 C 0 to 70 C -40 to 85 C 0 to 70 C -40 to 85 C 0 to 70 C -40 to 85 C Package
TSSOP
devices such as modems to be monitored using only 1A 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 Palmtop Computers, Battery Powered Equipment, Hand-Held Equipment, Peripherals and Printers.
Comments 50parts per tube / 20tube per box 50parts per tube / 20tube per box 1000 parts per reel 1000 parts per reel 1350 parts per reel 1350 parts per reel 2500 parts per reel 2500 parts per reel
SO-18 (Tube) SO-18 (Tube) SO-18 (Tape & Reel) SO-18 (Tape & Reel) SSOP20 (Tape & Reel) SSOP20 (Tape & Reel) TSSOP20 (Tape & Reel) TSSOP20 (Tape & Reel)
March 2003
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ST3222E
PIN CONFIGURATION
SO-18 SSOP20/TSSOP20
PIN DESCRIPTION
PlN N (SO-18) 1 PlN N (SSOP20 TSSP20) 1 SYMBOL EN NAME AND FUNCTION Receiver Enable Control. Drive low for normal operation. Drive high to force the receivers outputs (R_OUT) into a high-impedance state. Positive Terminal for the first Charge Pump Capacitor 5.5V Generated By The Charge Pump. Negative Terminal for the first Charge Pump Capacitor Positive Terminal for the second Charge Pump Capacitor Negative Terminal for the second Charge Pump Capacitor -5.5V Generated By The Charge Pump. Second Transmitter Output Voltage Second Receiver Input Voltage Second Receiver Output Voltage Not Connected Second Transmitter Input Voltage First Transmitter Input Voltage Not Connected First Receiver Output Voltage First Receiver Input Voltage First Transmitter Output Voltage Ground Supply Voltage Active Low Shutdown Control Input. Drive Low To Shut-down Transmittes And Charge Pump
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
C1+ V+ C1C2+ C2VT2OUT R2IN R2OUT NC T2IN T1IN NC R1OUT R1IN T1OUT GND VCC SHDN
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ST3222E
ABSOLUTE MAXIMUM RATINGS
Symbol VCC V+ VV+ +|V-| TIN SHDN RIN TOUT ROUT tSHORT Supply Voltage Doubled Voltage Terminal Inverted Voltage Terminal Transmitter Input Voltage Range Transmitter Input Voltage Range Receiver Input Voltage Range Transmitter Output Voltage Range Receiver Output Voltage Range Transmitter Output Short to GND Time Parameter Value -0.3 to 6 (VCC - 0.3) to 7 0.3 to -7 13 -0.3 to 6 -0.3 to 6 25 13.2 -0.3 to (VCC + 0.3) Continuous Unit V V V V V V V V V
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. V+ and V- can have a maximum magnitude of +7V, but their absolute addition can not exceed 13 V.
SHUTDOWN AND ENABLE CONTROL TRUTH TABLE
SHDN 0 0 1 1 EN 0 1 0 1 T-OUT High Z High Z Active Active R-OUT Active High Z Active High Z
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
Symbol ESD ESD Parameter ESD Protection Voltage ESD Protection Voltage Test Conditions Human Body Model IEC-1000-4-2 Min. 15 8 Typ. Max. Unit kV kV
ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1F, VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C)
Symbol ISHDN Parameter No Load No Load SHUTDOWN Supply Current Test Conditions SHDN=VCCTA = 25C SHDN=VCCTA = 25C Min. Typ. 0.3 1 Max. 1 10 Unit mA A ISUPPLY VCC Power Supply Current
LOGIC INPUT ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1F, VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C)
Symbol VIL VIH VHYS IIL Parameter Input Logic Threshold Low Input Logic Threshold High Transmitter Input Histeresys Input Leakage Current VCC = 3.3V VCC = 5V Test Conditions T-IN, EN, SHDN (Note 1) 2 2.4 0.25 T-IN, EN, SHDN 0.01 1 V A Min. Typ. Max. 0.8 Unit V V
Note 1: Transmitter input hysteresis is typically 250mV
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ST3222E
TRANSMITTER ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1F VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C)
Symbol VTOUT RTOUT ITSC ITOL Parameter Output Voltage Swing Transmitter Output Resistance Output Short Circuit Current Output Leakage Current Test Conditions All Transmitter outputs are loaded with 3K to GND VCC = V+ = V- = 0V VOUT = 2V Min. 5 300 Typ. 5.4 10M 60 VCC = 0V or 3V to 3.6V Transmitters Disable VOUT = 12V 25 Max. Unit V mA A
RECEIVER ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1F VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C)
Symbol IOL VRIN VRIL VRIH Parameter Output Leakage Current Receiver Input Voltage Operating Range Input Threshold Low Input Threshold High Test Conditions R-OUT, EN = VCC, Receiver Disabled -25 TA = 25C TA = 25C TA = 25C TA = 25C VRIHYS Input Hysteresis RRIN VROL VROH Input Resistance Output Voltage Low Output Voltage High TA = 25C IOUT = 1.6mA IOUT = -1mA VCC-0.6 VCC-0.1 3 VCC = 3.3V VCC = 5V VCC = 3.3V VCC = 5V 0.6 0.8 1.2 1.5 1.5 1.8 0.5 5 7 0.4 2.4 2.4 V K V V V Min. Typ. 0.05 Max. 10 25 Unit A V V
TIMING CHARACTERISTICS (C1 - C4 = 0.1F, VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C)
Symbol DR tPHLR tPLHR |tPHLT - tTHL| tOER tODR |tPHLR - tTHR| SRT Parameter Data Transfer Rate Propagation Delay Input to Output Transmitter Propagation Delay Difference Test Conditions RL = 3K CL2= 1000pF one trasmitter switching RXIN to RXOUT CL = 150pF (Note 1) Min. 250 0.15 200 50 50 50 Typ. Max. Unit Kbps s ns ns ns ns
Receiver Output Enable Normal Operation Time Receiver Output Disable Normal Operation Time Receiver Propagation Delay Difference Trnasition Slew Rate TA = 25C RL = 3K to 7K VCC = 3.3V measured from +3V to -3V or -3V to +3V CL = 150pF to 1000pF CL = 150pF to 2500pF
6 4
30 30
V/s V/s
(Note 1) Transmitter Skew is measured at the transmitter zero cross points
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ST3222E
APPLICATION CIRCUITS
CAPACITANCE VALUE (F)
VCC 3.0 to 3.6 4.5 to 5.5 3.0 to 5.5 C1 0.1 0.047 0.1 C2 0.1 0.33 0.47 C3 0.1 0.33 0.47 C4 0.1 0.33 0.47 Cbypass 0.1 0.1 0.1
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ST3222E
TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specified Tj = 25C) Figure 1 : Output Current vs Output High Voltage Figure 4 : Output Current vs Output Low Voltage
Figure 2 : Output Current vs Output High Voltage
Figure 5 : Voltage Transfer Characteristics for Trasmitter Inputs
Figure 3 : Output Current vs Output Low Voltage
Figure 6 : Receiver Input Resistance
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ST3222E
SO-18 MECHANICAL DATA
mm. DIM. MIN. TYP MAX. MIN. TYP. MAX. inch
A A1 A2 B C D E e H h k L
2.35 0.1
2.65 0.3 2.55
0.092 0.004
0.104 0.012 0.100
0.33 0.23 11.35 7.4 1.27 10.00 0.25 8 0.4
0.51 0.32 11.75 7.6
0.013 0.009 0.447 0.291 0.050
0.020 0.012 0.462 0.299
10.65 0.75 (max.) 1.27
0.393 0.010
0.419 0.029
0.016
0.050
h x 45u A2
A K L H
B
0.10mm .004 Seating Plane
e
A1
C
D
18
10
1
9
SO18
E
0070768
7/10
ST3222E
SSOP20 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.55 0.05 1.65 0.22 0.09 6.9 7.4 5 7.2 7.8 5.3 0.65 BSC 4 0.75 8 0.95 0 0.022 1.75 1.85 0.38 0.25 7.5 8.2 5.6 TYP MAX. 2 0.002 0.065 0.009 0.004 0.272 0.291 0.197 0.283 0.307 0.209 0.0256 BSC 4 0.030 8 0.037 0.069 0.073 0.015 0.010 0.295 0.323 0.220 MIN. TYP. MAX. 0.079 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0061436C
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ST3222E
TSSOP20 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 6.4 6.2 4.3 6.5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 6.6 6.6 4.48 0.002 0.031 0.007 0.004 0.252 0.244 0.169 0.256 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0079 0.260 0.260 0.176 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0087225C
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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. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2003 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. (c) http://www.st.com
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