ST207E
15KV ESD PROTECTED
5V RS-232 TRANSCEIVER
PRELIMINARY DATA
June 2000
s
ESD PROTECTION FOR RS-232 I/O PINS:
15 KV HUMAN BODY MODEL
s
GUARANTEED 120kbpsDATE RATE -
LapLink
TM
COMPATIBLE
s
GUARANTEED SLEW RATE 3V/
s (Min)
s
OPERATE FROM A SINGLE 5V POWER
SUPPLY
s
PACKAGED IN SO-24, SSO-24 AND TSSOP24
PACKAGES
DESCRIPTION
The ST207E is a 5 driver and 3 receiver devices
designed for RS-232 and V.28 communications in
harsh enviroments. Each transmitter output and
receiver
input
is
protected against
15KV
electrostatic discharge (ESD) shocks. The drivers
and
receivers
of
the
ST207E
meet
all
EIA/TIA-232E and CCITT V.28 specifications at
data rates up to 120Kbps, when loaded in
accordance with the EIA/TIA-232E specification.
The ST207E operates with four 0.1
F capacitors.
It cames in 24-pin SO and TSSOP packages.
D
(Micro Package Large)
T
(TSSOP Package)
ORDER CODES
T ype
Temperature
Range
Packag e
Co mmen ts
ST207ECD
0 to 70
o
C
SO-24 (Tube)
33 parts per tube / 25 tube per box
ST207EBD
-40 to 85
o
C
SO-24 (Tube)
33 parts per tube / 25 tube per box
ST207ECDR
0 to 70
o
C
SO-24 (Tape & Reel)
1000 parts per reel
ST207EBDR
-40 to 85
o
C
SO-24 (Tape & Reel)
1000 parts per reel
ST207ECTR
0 to 70
o
C
TSSOP24 (Tape & Reel)
2500 parts per reel
ST207EBTR
-40 to 85
o
C
TSSOP24 (Tape & Reel)
2500 parts per reel
ST207ECPR
0 to 70
o
C
SSOP24 (Tape & Reel)
ST207EBPR
-40 to 85
o
C
SSOP24 (Tape & Reel)
P
(SSOP Package)
1/9
PIN CONFIGURATION
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND F UNCTION
1
T3
OUT
RS-232 Driver Output
2
T1
OUT
RS-232 Driver Output
3
T2
OUT
RS-232 Driver Output
4
R1
IN
RS-232 Receiver Input
5
R1
OUT
TTL/CMOS Receiver Outputs. All The Receivers Are Inactive In Sutdown
6
T2
IN
TTL/CMOS Driver Inputs. Internal Pull-up to V
CC
7
T1
IN
TTL/CMOS Driver Inputs. Internal Pull-up to V
CC
8
GND
Ground
9
V
CC
4.75V to 5.25V Supply Voltage
10
C
1
+
Terminal For Positive Charge-pump Capacitor
11
V+
2V
CC
Generated By The Charge Pump
12
C
1
-
Terminal For Positive Charge-pump Capacitor
13
C
2
+
Terminal For Negative Charge-pump Capacitor
14
C
2
+
Terminal For Negative Charge-pump Capacitor
15
V-
-2V
CC
Generated By The Charge Pump
16
R3
IN
RS-232 Receiver Input
17
R3
OUT
TTL/CMOS Receiver Outputs. All The Receivers Are Inactive In Sutdown
18
T3
IN
TTL/CMOS Driver Inputs. Internal Pull-up to V
CC
19
T4
IN
TTL/CMOS Driver Inputs. Internal Pull-up to V
CC
20
T5
OUT
RS-232 Driver Output
21
T5
IN
TTL/CMOS Driver Inputs. Internal Pull-up to V
CC
22
R2
OUT
TTL/CMOS Receiver Outputs. All The Receivers Are Inactive In Sutdown
23
R2
IN
RS-232 Receiver Input
ST207E
2/9
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
ESD
ESD Protection Voltage
Human Body Model
15
kV
ABSOLUTE MAXIMUM RATINGS (Note 1)
Symbol
Parameter
Val ue
Unit
V
CC
Supply Voltage
-0.3 to 6
V
V
+
Extra Positive Voltage
(V
CC
- 0.3) to 14
V
V
-
Extra Negative Voltage
-14 to 0.3
V
T
IN
Transmitter Input Voltage Range
-0.3 to (V
CC
+ 0.3)
V
R
IN
Receiver Input Voltage Range
30
V
T
OUT
Transmitter Output Voltage Range
(V- - 0.3) to (V+ + 0.3)
V
R
OUT
Receiver Output Voltage Range
-0.3 to (V
CC
+ 0.3)
V
T
SCTOUT
Short Circuit Duration on T
OUT
Continuous
T
stg
Storage Temperature Range
-65 to +150
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
ELECTRICAL CHARACTERISTICS (C
1
-C
4
= 0.1
F, V
CC
= 5V
5% T
A
= Min to Max, unless
otherwise specified. Typical Valus are referred to T
A
= 25
o
C)
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
I
SUPPLY
V
CC
Power Supply Current
No Load,
T
A
= 25
o
C
2
5
mA
RECEIVER ELECTRICAL CHARACTERISTICS (C
1
-C
4
= 0.1
F, V
CC
= 5V
5% T
A
= Min to Max,
unless otherwise specified. Typical Valus are referred to T
A
= 25
o
C)
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
V
RIN
Receiver Input Voltage
Operating Range
-30
30
V
V
RIL
Input Threshold Low
T
A
= 25
o
C, V
CC
= 5 V
0.8
1.2
V
V
RIH
Input Threshold High
T
A
= 25
o
C, V
CC
= 5 V
1.7
2.4
V
V
RIHYS
Input Hysteresis
V
CC
= 5 V, no hysteresis in shutdown
0.2
0.5
1
V
R
RIN
Input Resistance
T
A
= 25
o
C, V
CC
= 5 V
3
5
7
K
V
OL
Output Voltage Low
0.4
V
V
OH
Output Voltage High
I
OUT
= -1mA
3.5
V
CC
-0.4
V
ST207E
3/9
TRANSMITTER ELECTRICAL CHARACTERISTICS (C
1
-C
4
= 0.1
F, V
CC
= 5V
5% T
A
= Min to
Max, unless otherwise specified. Typical Valus are referred to T
A
= 25
o
C)
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
V
TOUT
Output Voltage Swing
All drivers loaded with 3K
to GND
5
8.5
V
R
OUT
Transmitter Output Resistance V
CC
= V+ = V- = 0V
V
OUT
=
2 V
300
I
SC
Transmitter Output Short
Circuit Current
18
60
mA
I
IL
Input Pull-Up Current
T
IN
= 0 V
15
200
A
V
TIL
Input Logic Threshold Low
0.8
V
V
TIH
Input Logic Threshold High
2
V
TIMING CHARACTERISTICS (C
1
-C
4
= 0.1
F, V
CC
= 5V
5% T
A
= Min to Max, unless otherwise
specified. Typical Valus are referred to T
A
= 25
o
C)
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
DR
Maximum Data Rate
R
L
= 3K
to 7 K
,
C
L
= 50pF to 1000pF
one transmitter switching
120
kbps
t
PLHR
t
PHLR
Receiver Propagation Delay
All drivers loaded with 3K
to GND
0.2
10
s
t
PLHT
t
PHLT
Transmitter Propagation Delay R
L
= 3K
, C
L
= 2500pF
all transmitters loaded
2
s
SR
Transition-Region Slew Rate
T
A
=25
o
C V
CC
= 5V
R
L
= 3K
to 7 K
,
C
L
= 50pF to 1000pF
measure from -3V to 3V or 3V to -3V
3
7
30
V/
s
ST207E
4/9
APPLICATION CIRCUITS (note 1, note 2)
Capacitance Value (
F)
DEVICES
C1
C2
C3
C4
C5
ST207E
0.1
0.1
0.1
0.1
0.1
Note 1: C
1-4
capacitors can even be 1
F ones.
Note 2: C
1-4
canbe common or biased capacitors.
ST207E
5/9
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