ST207EB ST207EC
15 kV ESD protected 5 V RS-232 transceiver
Features
ESD protection for RS-232 i/o pins: 15 kV human body model 230kbps data rate Guaranteed slew rate 3 V/ms (min.) Operates from a single 5 V power supply Packaged in SSO-24 and TSSOP24
Description
The ST207E is a 5 driver and 3 receiver devices designed for RS-232 and V.28 communications in harsh environments. Each transmitter output and receiver input is protected against 15 KV electrostatic discharge (ESD) shocks. The drivers and receivers of the ST207E meet all EIA/TIA232E and CCITT V.28 specifications at data rates up to 120 Kbps, when loaded in accordance with the EIA/TIA-232E specification. The ST207E operates with four 0.1 F capacitors. It came in 24-pin SSOP and TSSOP packages.
SSOP
TSSOP
Table 1.
Device summary
Temperature range 0 to 70 C -40 to 85 C 0 to 70 C -40 to 85 C Package SSOP-24 (Tape & Reel) SSOP-24 (Tape & Reel) TSSOP24 (Tape & Reel) TSSOP24 (Tape & Reel) Packaging 1350 parts per reel 1350 parts per reel 2500 parts per reel 2500 parts per reel
Order codes ST207ECPR ST207EBPR ST207ECTR ST207EBTR
August 2007
Rev. 15
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ST207EB - ST207EC
Contents
1 2 3 4 5 6 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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ST207EB - ST207EC
Pin configuration
1
Figure 1.
Pin configuration
Pin connections (top view)
Table 2.
Pin N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Pin description
Symbol T3OUT T1OUT T2OUT R1IN R1OUT T2IN T1IN GND VCC C1+ V+ C1C2+ C2VR3IN R3OUT RS-232 driver output RS-232 driver output RS-232 driver output RS-232 receiver input TTL/CMOS receiver output TTL/CMOS driver input internal pull-up to VCC TTL/CMOS driver input internal pull-up to VCC Ground 4.75V to 5.25V supply voltage Terminal for positive charge-pump capacitor 2VCC generated by the charge-pump Terminal for negative charge-pump capacitor Terminal for positive charge-pump capacitor Terminal for negative charge-pump capacitor -2VCC generated by the charge-pump RS-232 receiver input TTL/CMOS receiver output Note
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Pin configuration Table 2.
Pin N 18 19 20 21 22 23 24
ST207EB - ST207EC
Pin description
Symbol T3IN T4IN T5OUT T5IN R2OUT R2IN T4OUT Note TTL/CMOS driver input internal pull-up to VCC TTL/CMOS driver input internal pull-up to VCC RS-232 driver output TTL/CMOS driver input internal pull-up to VCC TTL/CMOS receiver output RS-232 receiver input RS-232 driver output
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ST207EB - ST207EC
Maximum ratings
2
Table 3.
Symbol VCC V+ VTIN RIN TOUT ROUT TSHORT TSTG
Maximum ratings
Absolute maximum ratings
Parameter Supply voltage Extra positive voltage Extra negative voltage Transmitter input voltage range Receiver input voltage range Transmitter output voltage range Receiver output voltage range Shor t circuit duration on tOUT Storage temperature range Value -0.3 to 6 (VCC - 0.3) to 14 -14 to 0.3 -0.3 to (VCC + 0.3) 30 (V- - 0.3) to (V+ + 0.3) -0.3 to (VCC + 0.3) Continuous -65 to 150 C Unit V V V V V V V
Note:
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.
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Electrical characteristics
ST207EB - ST207EC
3
Table 4.
Symbol ESD ESD
Electrical characteristics
ESD Performance: transmitter outputs, receiver inputs
Parameter ESD protection voltage ESD protection voltage Test condition Human body model IEC-1000-4-2 Contact discharge Min. 15 8 Typ. Max. Unit KV KV
Table 5.
Electrical characteristics (C1 - C4 = 0.1 F, VCC = 5 V 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25C).
Parameter VCC power supply current Test condition No Load, TA = 25C Min. Typ. 2 Max. 5 Unit mA
Symbol ISUPPLY
Table 6.
Transmitter electrical characteristics (C1 - C4 = 0.1 F, VCC = 5V 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25C).
Parameter Output voltage swing Transmitter output resistance Output short circuit current Input pull-up current Input logic threshold low Input logic threshold high 2 TIN = 0V Test condition All Driver loaded with 3K to GND VCC = V+ = V- = 0V VOUT = 2V Min. 5 300 18 15 60 200 0.8 Typ. 8.5 Max. Unit V mA A V V
Symbol VTOUT ROUT ISC IIL VTIL VTIH
Table 7.
Receiver electrical characteristics (C1 - C4 = 0.1 F, VCC = 5 V 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25C).
Parameter Receiver input voltage operating range Input threshold low Input threshold high Input hysteresis Input resistance Output voltage low Output voltage high IOUT = -1mA 3.5 VCC-0.4 TA = 25C VCC = 5V TA = 25C VCC = 5V VCC = 5V, no hysteresis in shutdown TA = 25C VCC = 5V 0.2 3 Test condition Min. -30 0.8 1.2 1.7 0.5 5 2.4 1 7 0.4 Typ. Max. 30 Unit V V V V K V V
Symbol VRIN VRIL VRIH VRIHYS RRIN VOL VOH
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ST207EB - ST207EC Table 8.
Electrical characteristics
Timing characteristics (C1 - C4 = 0.1 F, VCC = 5V 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25C).
Parameter Test condition RL = 3k to 7k CL= 50pF to 1000pF one transmitter switching RL = 3k to 7k CL= 50pF to 150pF one transmitter switching Min. 150 Typ. 240 Max. Unit Kbps
Symbol
DR
Maximum data rate
230
300 0.2 2 10 3
Kbps s s
tPHLR tPLHR tPHLT tPLHT SR
Receiver propagation delay Transmitter propagation delay Transition-region slew rate
All drivers loaded with 3K to GND RL = 3k CL= 2500pF All transmitter loaded TA = 25C RL = 3 to 7 k VCC = 5 V CL = 50pF to 1000pF measured from +3V to -3V or -3V to +3V 3
7
30
V/s
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Typical application
ST207EB - ST207EC
4
Figure 2.
Typical application
Application circuit
Table 9.
C1 0.1 8/15
Capacitance value (F)
C2 0.1 C3 0.1 C4 0.1 C5 0.1
ST207EB - ST207EC
Package mechanical data
5
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
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Package mechanical data
ST207EB - ST207EC
SSOP24 mechanical data
mm. Dim. Min. A A1 A2 b c D E E1 e K L 0 0.55 0.75 0.05 1.65 0.22 0.09 7.9 7.4 5.00 8.2 7.8 5.3 0.65 BSC 8 0.95 0 0.022 0.030 1.75 1.85 0.38 0.25 8.5 8.2 5.6 Typ. Max. 2 0.002 0.065 0.009 0.004 0.311 0.291 0.197 0.323 0.307 0.209 0.0256 BSC 8 0.037 0.069 0.073 0.015 0.010 0.335 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
0053237/C
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ST207EB - ST207EC
Package mechanical data
TSSOP24 mechanical data
mm. Dim. Min. A A1 A2 b c D E e H K L 6 .25 0 0.50 0.19 0.09 7.7 4.3 0.65 BSC 6.5 8 0.70 0.246 0 0.020 0.05 0.9 0.30 0.20 7.9 4.5 0.0075 0.0035 0.303 0.169 0.0256 BSC 0.256 8 0.028 Typ. Max. 1 .1 0.15 0.002 0.035 0.0118 0.0079 0.311 0.177 Min. Typ. Max. 0.043 0.006 inch.
A
A2 A1 b e K c L H
D
E
PIN 1 IDENTIFICATION
1
7047476B
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Package mechanical data
ST207EB - ST207EC
Tape & reel SSOP24 mechanical data
mm. Dim. Min. A C D N T Ao Bo Ko Po P 8.4 8.7 2.9 3.9 11.9 12.8 20.2 60 22.4 8 .6 8 .9 3 .1 4.1 12.1 0.331 0.343 0.114 0.153 0.468 Typ. Max. 330 13.2 0.504 0.795 2 .362 0.882 0.339 0.351 0.122 0.161 0.476 Min. Typ. Max. 12.992 0.519 inch.
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ST207EB - ST207EC
Package mechanical data
Tape & reel TSSOP24 mechanical data
mm. Dim. Min. A C D N T Ao Bo Ko Po P 6.8 8.2 1.7 3.9 11.9 12.8 20.2 60 22.4 7 8 .4 1.9 4.1 12.1 0.268 0.323 0.067 0.153 0.468 Typ. Max. 330 13.2 0.504 0.795 2 .362 0.882 0.276 0.331 0.075 0.161 0.476 Min. Typ. Max. 12.992 0.519 inch.
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Revision history
ST207EB - ST207EC
6
Table 10.
Date
Revision history
Revision history
Revision 13 14 15 Mistake on Table 1. Order codes has been updated and new template. Added Table 1. in cover page. Changes
09-Feb-2005 14-Mar-2006 22-Aug-2007
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ST207EB - ST207EC
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