TOIM4232
VISHAY
Vishay Semiconductors
SIR Endec for IrDA Applications
Integrated Interface Circuit
ULC Technology: High performance gate array
package using multiple metal layer CMOS technology
featuring sub-micron channel lengths (0.35 µm).
Description
The TOIM4232 Endec IC provides proper pulse shaping for the SIR IrDA® front end infrared transceivers
as of the 4000-series. For transmitting the TOIM4232
shortens the RS232 output signal to IrDA compatible
electrical pulses to drive the infrared transmitter. In
the receive mode, the TOIM4232 stretches the
received infrared pulses to the proper bit width
depending on the operating bit rate. The IrDA bit rate
varies from 2.4 kbit/s to 115.2 kbit/s.
The TOIM4232 is using a crystal clock 3.6864 MHz
for its pulse stretching and shortening. The clock can
be generated by the internal oscillator. An external
clock can be used, too. The TOIM4232 is programmable to operate from 1200 bit/s to 115.2 kbit/s by the
communication software through the RS232 port. The
output pulses are software programmable as either
1.627 µs or 3/16 of bit time. The typical power consumption is very low with about 10 mW in operational
state and in the order of a few microwatts in standby
mode.
18080
Features
• Pulse shaping function (shortening and stretching)
used in SIR IrDA® applications
• Directly interfaces the SIR transceiver TFD..series to an RS232 port
• Programmable baud clock generator (1200 Hz to
115.2 kHz), 13 baud rates
• 3/16 bit pulse duration or 1.627 µs pulse selectable
• SO16 - package
• 2.7 V to 3.6 V operation voltage, 5 V tolerant inputs
• Low operating current
Block Diagram
Vcc
TD_IR
TD_232
Endec
RD_232
RD_IR
Baud
Generator
BR/D
TD_LED
RD_LED
S1
S2
Logic
RESET
Vcc_SD
Osci llator
GND
X1
X2
18079
Document Number 82546
Rev. 1.4, 01-Dec-03
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1
TOIM4232
VISHAY
Vishay Semiconductors
Pin Assignment and Description
Pin Number
Symbol
Description
1
RESET
Resets all internal registers. Initially must be HIGH ("1") to reset internal
registers. When HIGH, the TOIM4232 sets the IrDA default bit rate of 9600
bit/s, sets pulse width to 1.627 µs. The VCC_SD output is simply an inverted
reset signal which allows to shut down of a TFDx4x00 transceiver when
applying the reset signal to the TOIM4232. When using devices with
external SD like TFDS4203, the reset line can be used directly as shut
down signal. RESET pin can be controlled by either the RTS or DTR line
through RS232 level converter. Minimum hold time for resetting is 1 µs.
Disables the oscillator when active.
I/O
Active
2
BR/ D
Baud Rate control/ Data.
BR/ D = 0, data communication mode:
RS232 TXD data line is connected (via a level shifter) to TD_232 input pin.
The TXD - signal is appropriately shortened and applied to the output
TD_IR, driving the TXD input of the IR transceiver. The RXD line of the
transceiver is connected to the RD_IR input. This signal is stretched to the
correct bit length according the programmed bit rate and is routed to the
RS232 RXD line at the RD_232 pin.
BR/ D = 1, Programming mode:
Data received from the RS232 port is interpreted as Control Word. The
Control Word programs the baud rate width will be effective as soon as BR/
D return to LOW.
3
RD_232
Received signal data output of stretched signal to the RS232 RXD line
(using level converter).
O
HIGH
4
TD_232
Input of the signal to be transmitted from the RS232 port TXD line (passing
the level converter).
I
HIGH
5
VCC_SD
Outputs an inverted RESET signal. Can be used to shut down the power
supply of a 4000 series transceiver (e.g., TFDU4100). VCC shutdown
output function. This pin can be used to shut down a transceiver (e.g.,
TFDx4xxx). Output polarity: Inverted RESET input.
O
LOW
6
X1
Crystal input clock, 3.6864 MHz nominal. Input for external clock *)
I
7
X2
Crystal *)
I
8
GND
Ground in common with the RS232 port and IrDA transceiver ground
9
TD_LED
Transmit LED indicator driver. Use 180 Ω current limiting resistor in.series
to LED to connect to VCC. (VCC = 3.3 V)
O
LOW
10
RD_LED
Receive LED indicator driver. Use 180 Ω current limiting resistor in series
to LED to connect to VCC. (VCC = 3.3 V)
O
LOW
11
NC
No connection
12
S1
User Programmable Bit. Can be used to turn ON/ OFF a front-end infrared
transceiver (e.g., an infrared module at the adapter front)
O
LOW
13
S2
User Programmable Bit. Can be used to turn ON/ OFF a front-end infrared
transceiver (e.g., an infrared module at the adapter back)
O
LOW
HIGH
14
TD_IR
Data output of shortened signal to the infrared transceiver
O
HIGH
15
RD_IR
Data input from the infrared transceiver, min. pulse duration 1.63 µs **)
I
LOW
16
VCC
Supply voltage
I
*) Crystal should be connected as shown in figure 2. In addition connect a 100 kΩ resistor from Pin 6 to Pin 7 and from Pin 6 and Pin 7 a
22 pF capacitor to ground, respectively. When an external clock is available connect it to Pin 6 leaving Pin 7 open. The external resistor
of 100 kΩ is used to accelerate the start of oscillation after reset or power - on. The value depends on the "Q" of the resonator. With low
Q resonators it is not necessary. The start - up time of the oscillator is between 30 µs (with piezo resonators) and above 2 ms with high Q
quartzes.
**) All Vishay Semiconductor SIR transceivers fulfill this condition
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2
Document Number 82546
Rev. 1.4, 01-Dec-03
TOIM4232
VISHAY
Vishay Semiconductors
Block diagram of application circuit
DTR
RESET VCC_SD
VCC
RTS
BR/D
TD_IR
TxD
TxD
TD_232
RD_IR
RxD
RxD
RD_232
RS232 9 pin
connector
Level
converter
Operating the interface circuit at a PC COM - port.
When operating directly with an UART with 3 V - or
5 V - logic, in the application circuit no level converter
is necessary.
TOIM4232
R1
X1
X2
100 kΩ
TFDU4100
TFDS420x
TFDU4300
3.6864 MHz
C1
C2
2 x 22 pF
18081
Table 1.
Recommended Application Circuit Components
Component
Recommended Value
Vishay Part Number
C1
22 pF
VJ 1206 A 220 J XAMT
C2
22 pF
VJ 1206 A 220 J XAMT
R1
100 kΩ
CRCW-1206-1003-F-RT1
Quartz Crystal
3.686400 MHz
XT49S - 20 - 3.686400M
Absolute Maximum Ratings
Parameter
Test Conditions
Supply voltage
Symbol
Min
Max
Unit
VCC
- 0.5
Typ.
3.6
V
Input voltage
all pins
- 0.5
5.5
V
Output voltage
all pins
- 0.5
VCC + 0.5
V
Output sinking current, max
all pins
IO
8
mA
TJ
125
°C
85
°C
Junction temperature, max
Ambient temperature
(operating)
Storage temperature
Soldering temperature
t = 20 s @ 215 °C
Tamb
- 25
Tstg
- 25
Tsldr
85
°C
215
230
°C
DC Characteristics
Parameter
Test Conditions
Symbol
Min
Typ.
Max
Unit
VCC
2.7
3.3
3.6
V
Test Conditions
Symbol
Min
Typ.
Max
Unit
inputs tolerate levels as high as
5.5 V max. all inputs are Schmitt
trigger inputs
VIH
1.7
2.0
V
Operating voltage
VCC = 3.3 V ± 5 %, operating temperature = - 55 °C to + 125 °C
Parameter
Input HIGH voltage
Input LOW voltage
Input Schmitt trigger hysteresis
Document Number 82546
Rev. 1.4, 01-Dec-03
VIL
Vhyst
0.8
1.1
V
0.6
V
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3
TOIM4232
VISHAY
Vishay Semiconductors
Parameter
Test Conditions
Symbol
Min
Typ.
Max
Unit
IL
- 10
±1
10
µA
IOH = - 2.0 mA
VOH
2.0
V
IOH = - 0.5 mA
VOH
2.4
V
Input leakage no pull-up/down
VIN = VDD or GND
Output HIGH voltage
Output LOW voltage
IOL = + 2.0 mA
VOL
0.4
V
Consumption current standby
inputs grounded, no output load
VCC = 3.3 V, T = 25 °C
ISB
1
µA
Consumption current dynamic
inputs grounded, no output load
VCC = 3.3 V, T = 25 °C
ICC
Operation Description
Figure 2 shows a typical example of an RS232 port
interface. The TOIM4232 connects to an RS232 level
converter on one side, and an infrared transceiver on
the other. The internal TOIM4232 baud rate generator
can be software controlled.
When BR/D = 0, the TOIM4232 interprets the channels TD_232 to TD_IR and RD_IR to RD_232 as data
channels.
On the other hand, whenever BR/D = 1, the
TOIM4232 interprets TD_232 as Control Word for
setting the Baud rate. The Baud rate can be programmed to operate from 1200 bit/s to 115.2 kbit/s.
As RS232 level converter, EIA232 or MAX232 or
equivalent are recommended.
When using the TOIM4232 directly connected to an
UART it is compatible to 5 V TTL and 3.3 V CMOS
logic.
Typical external resistors and capacitors are needed
as shown in the TFDx4xxx references.
The output pulse duration can also be programmed,
see chapter "Operation Description". It is strongly recommended using 1.627 µs output pulses to save bat-
Control Byte (8 bit)
First Character
X
S2
S1
Second Character
S0
B3
B2
B1
B0
LSB
X: Do not care
S1, S2: User programmble bit to program the outputs
S1 and S2
S0: Irda pulse select
S0 = (1): 1.627 µs pulses
S0 = (0): 3/16 bit time pulses, not recommended
B0 .. B3: Baud rate select words
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2
mA
tery power. As frequency determining component a
Vishay XT49M Crystal is recommended, when no
external clock is available.
We strongly recommend not to use this 3/16 mode
because 3/16 pulse length at lower bit rates consumes more power than the shorter pulse. At a
data rate of 9600 bit/s, the ratio of power consumption of both modes is a factor of 12 (!).
Programming the TOIM4232
For correct, data rate dependent timing the
TOIM4232 is using a built-in baud rate generator.
This is used when no external clock is not available as
in RS232 IR-dongle applications. For programming
the BR/D pin has to be set active, BR/D = 1.
In this case the TOIM4232 interprets the 7 LSBs at
the TD_232 input as a Control Word. The operating
baud rate will change to its supposedly new baud rate
when the BR/D returns back to LOW ("0") Set the
UART to 8 bit, no parity, 1 stop bit.
Example:
To set TOIM4232 at COM2 port (2F8) to 9600 bit/s
with 3/16 bit time pulse duration send to the
TOIM4232 in programming mode in e.g. "Basic"
OUT &H2F8, (&H6)
For same port, 9600 bit/s and 1.627 µs pulse duration
send
OUT &H2F8, (&H16)
For additionally activating S1 send
OUT &H2F8, (&H36)
Document Number 82546
Rev. 1.4, 01-Dec-03
TOIM4232
VISHAY
Vishay Semiconductors
Baud Rate Select Words
B3
B2
B1
B0
2nd
Char
Baud Rate
0
0
0
0
0
115.2 k
0
0
0
1
1
57.6 k
0
0
1
0
2
38.4 k
0
0
1
1
3
19.2 k
0
1
0
0
4
14.4 k
0
1
0
1
5
12.8 k
0
1
1
0
6
9.6 k
0
1
1
1
7
7.2 k
1
0
0
0
8
4.8 k
1
0
0
1
9
3.6 k
1
0
1
0
A
2.4 k
1
0
1
1
B
1.8 k
1
1
0
0
C
1.2 k
1
1
0
1
D
forbidden
1
1
1
0
E
forbidden
1
1
1
1
F
forbidden
Note: IrDA standard only supports 2.4, 9.6, 19.2, 57.6, and 115.2 kbit/s.
Software for the TOIM4232
UART Programming
For proper operation, the RS232 must be programmed (using 8bit, 1stop, no parity) to send a two character control word, YZ. The control
word YZ is composed of two characters, written in hexadecimal, in format: YZ. The transfer rate for programming must be identical with
the formerly programmed data rate, or after resetting the TOIM4232, the default rate of 9600 bit/s is used.
Step.
RESET
BR/ D
TD_UART
RD_UART
RD_IR
TD_IR
Description and Comments
1
High
X
X
X
X
X
Resets all internal registers. Resets to
IrDA default data rate of 9600 bit/s
2
Low
X
X
X
X
X
Wait at least 2 ms, to allow start-up of
internal clock. When external clock is
used: Wait at least 7 µs.
3
Low
High
X
X
X
X
Wait at least 7 µs. TOIM4232 now is set
to the Control Word programming mode
4
Low
High
YZ
with Y = 1
for 1.627 µs
Y=0
3/16 bit
length
X
X
X
DATA
DATA
5
Low
Low
Sending the Control Word YZ.
Examples: Send "1Z" if 1.627 µs pulses are
intended to be used. Otherwise send "0Z" for 3/16
bit period pulses. "Y6" keeps the 9.6 kbit/s data
rate. Z = 0 sets to 115.2 kbit/s, see programming
table.
Wait at least 1 µs for hold-time.
DATA
DATA
With BR/D = 0, TOIM4232 is in the data
communication mode. Both RESET
and BR/D must be kept LOW ("0")
during data transmission.
Reprogramming to a new data rate can
be resumed by restarting from step 3.
The UART itself also must set to the
correct data rate *).
*) For programming the UART, refer to e.g., National Semiconductor’s data sheet of PC 16550 UART
Document Number 82546
Rev. 1.4, 01-Dec-03
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5
TOIM4232
VISHAY
Vishay Semiconductors
VCC
R3
MAX3232CSE
1
+ C3
3
4
C+
VCC
1
U1
C1-
V+
C2+
V-
2
C5
+
6
+ C4
5
TOIMx232
16
C7
+
2
3
C6
4
+
C2-
GND
15
5
6
11
10
12
9
T1IN
T2IN
R1OUT
R2OUT
T1OUT
T2OUT
R1IN
R2IN
14
7
13
8
7
8
Reset
BR/Data
U2
Vcc
RD IR
RD 232
TD IR
TD 232
S2
Vcc SD
S1
X1
NC
X2
RD LED
GND
TD LED
C10
2
+
15
R6
TFDU4100
C11
16
R4
4
14
6
13
8
IRED
Cathode
RxD
VCC1
GND
IRED
Anode
U4
TxD
NC
SC
1
3
5
7
12
11
10
9
J1
1
6
2
7
3
8
4
9
5
RxD
RTS (BR/D)
TxD
R1
DTR (Reset)
VCC
Y1
Application circuit using TFDU4100 with integrated
level shifter MAX3232E. When used directly with
3 Vlogic, this one can be omitted
Z2
J2
CON9
ext.
input max
3.3 V DC
1
2
C1
R2
+ C2
C8
CON2
C9
16527
Table 1.
Recommended Application Circuit Components
Component
Recommended Value
Vishay Part Number
1
C1
100 nF
VJ 1206 Y 104 J XXMT
2
C2
10 µF, 16 V
293D106X9016B2T
3
C3
100 nF
VJ 1206 Y 104 J XXMT
4
C4
100 nF
VJ 1206 Y 104 J XXMT
5
C5
100 nF
VJ 1206 Y 104 J XXMT
6
C6
100 nF
VJ 1206 Y 104 J XXMT
7
C7
1 µF. 16 V
293D105X9016A2T
8
C8
22 pF
VJ 1206 A 220 J XAMT
VJ 1206 A 220 J XAMT
9
C9
22 pF
10
C10
6.8 µF, 16 V
293D 685X9 016B 2T
11
C11
100 nF
VJ 1206 Y 104 J XXMT
12
Z2
3.6 V
BZT55C3V6
13
R1
5.6 Ω
CRCW-1206-5601-F-RT1
14
R2
100 kΩ (up to 1 MΩ, or omitted)
CRCW-1206-1003-F-RT1
15
R3
47 Ω
CRCW-1206-47R0-F-RT1
16
R4
20 Ω
CRCW-1206-20R0-F-RT1
17
R6
20 Ω
CRCW-1206-20R0-F-RT1
18
Y1
3.686400 MHz
XT49S - 20 - 3.686400M
19
U1
MAXIM MAX 3232E
20
U2
TOIM4232
21
U3
TFDU4100
22
J1
9 Pin - D - Sub
23
J2
Power connector
24
PCB
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Cannon
VISHAY Dongle_4
Document Number 82546
Rev. 1.4, 01-Dec-03
TOIM4232
VISHAY
Vishay Semiconductors
R3
TOIMx232
MAX3232CSE
1
C+
+ C3
3
4
VCC
16
1
U1
C1-
V+
C2+
V-
2
C5
+
6
C7
+
2
3
C6
+ C4
5
4
C2-
GND
15
+
5
6
11
10
12
9
T1IN
T2IN
R1OUT
R2OUT
T1OUT
T2OUT
R1IN
R2IN
14
7
13
8
7
8
Reset
BR/Data
U2
Vcc
RD IR
RD 232
TD IR
TD 232
S2
Vcc SD
S1
X1
NC
X2
RD LED
GND
TD LED
TFDU4300
C11
16
15
R4
opt.
C10
2
+
Cathode
4
14
6
13
8
RxD
VCC1
GND
Anode
U4
TxD
SD
Vlog
1
3
5
7
12
11
10
9
J1
1
6
2
7
3
8
4
9
5
RxD
DTS (BR/D)
TxD
R1
DTS (Reset)
VCC
Y1
Z2
CON9
J2
ext.
input max
3,6V DC
1
2
C1
R2
+ C2
CON2
C8
C9
Application circuit using TFDU4300 with an integrated
level shifter MAX3232E. When used directly with
3 Vlogic, this one can be omitted
18240
Table 2.
Recommended Application Circuit Components
Component
Recommended Value
Vishay Part Number
1
C1
100 nF
VJ 1206 Y 104 J XXMT
2
C2
10 µF, 16 V
293D106X9016B2T
3
C3
100 nF
VJ 1206 Y 104 J XXMT
4
C4
100 nF
VJ 1206 Y 104 J XXMT
5
C5
100 nF
VJ 1206 Y 104 J XXMT
6
C6
100 nF
VJ 1206 Y 104 J XXMT
7
C7
1 µF, 16 V
293D105X9016A2T
8
C8
22 pF
VJ 1206 A 220 J XAMT
VJ 1206 A 220 J XAMT
9
C9
22 pF
10
C10
6.8 µF, 16 V
293D 685X9 016B 2T
11
C11
100 nF
VJ 1206 Y 104 J XXMT
12
Z2
3.6 V
BZT55C3V6
13
R1
5.6 kΩ
CRCW-1206-5601-F-RT1
14
R2
100 kΩ (up to 1 MΩ, or omitted)
CRCW-1206-1003-F-RT1
15
R3
47 Ω
CRCW-1206-47R0-F-RT1
16
R4
20 Ω
CRCW-1206-20R0-F-RT1
17
Y1
3.686400 MHz
XT49S - 20 - 3.686400M
18
U1
MAXIM MAX 3232E
19
U2
TOIM4232
20
U3
TFDU4300
21
J1
9 Pin - D-Sub
22
J2
Power connector
23
PCB
Document Number 82546
Rev. 1.4, 01-Dec-03
Cannon
VISHAY Dongle_4
www.vishay.com
7
TOIM4232
VISHAY
Vishay Semiconductors
Vcc
3
C1
+
R13
+3,3V
2
Q4
1
Q2
+ C2
R2
R6
RxD
RTS
1
3
Q1
D6
VB1
TxD
3
Q3
1
D5
D4
1
D7
R5
3
2
R1
2
R3
1
6
2
7
3
8
4
9
5
D1
D2
RXD
RTS
TXD
DTR
R20
SUB-D 9
3
R9
Reset
1
Q1
2
D3
+3.3 V
TD232 RD232 BR/D Reset
Vcc
R12/1
R11
1
2
3
4
5
QZ1
6
R10
7
8
C3
TOIM4232
Reset
R12/2
Vcc
BR/Data
RD IR
RD 232
TD IR
TD 232
S2
Vcc SD
S1
X1
IRED1
U1
NC
X2
RD LED
GND
TD LED
16
15
14
13
12
2
11
4
10
6
9
8
C4
IRED cathode
Rxd
C5
Txd
Vcc
NC
Gnd
SC
U2
+
Jumper
IRED anode
1
3
5
7
TFDU4100
C6
18082
Install Jumper connection only when VCC SD supplies
U2. In that case leave R11 off.
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Document Number 82546
Rev. 1.4, 01-Dec-03
TOIM4232
VISHAY
Vishay Semiconductors
Table 3.
Recommended Application Circuit Components
Component
Recommended Value
Vishay Part Number
1
C1
22 µF, 16 V
293D 226X9 016C 2T
2
C2
47 µF, 16 V
293D 476X9 016D 2T
3
C3
22 pF
VJ 1206 A 220 J XAMT
4
C4
22 pF
VJ 1206 A 220 J XAMT
5
C5
100 nF
VJ 1206 Y 104 J XXMT
6
C6
6.8 µF, 16 V
293D 685X9 016B 2T
7
D1
8
D2
1N4148
9
D4
BZT55C4V7
10
D5
1N4148
11
D6
1N4145
12
D7
BZT55C3V9
1N4148
13
IRED1
TSHF5400
14
Jumper
CRCW-1206-000-F-RT1
15
LED1
TLLY4401
16
LED2
TLLG4401
17
Q1
BC817-25
18
Q2
VP 0610 0T
19
Q3
BC817-25
20
Q4
21
QZ1
3.686400 MHz
XT49S - 20 - 3.686400M
22
R1
22 kΩ
CRCW-1206-2202-F-RT1
23
R2
10 kΩ
CRCW-1206-1002-F-RT1
24
R3
22 kΩ
CRCW-1206-2202-F-RT1
25
R5
1 kΩ
CRCW-1206-1001-F-RT1
26
R6
47 kΩ
CRCW-1206-4702-F-RT1
27
R9
5.6 kΩ
CRCW-1206-5601-F-RT1
28
R10
100 kΩ
CRCW-1206-1003-F-RT1
29
R11
100 Ω
CRCW-1206-1000-F-RT1
30
R12
20 Ω
CRCW-1206-20R0-F-RT1
BC817-25
21
R13
1 kΩ
CRCW-1206-1001-F-RT1
32
R17
750 Ω
CRCW-1206-7500-F-RT1
33
R18
750 Ω
CRCW-1206-750-F-RT1
34
VB1
9 Pin - D- Sub
35
PCB
Cannon
VISHAY Dongle_3
36
U1
TOIM4232
37
U2
TFDU4100
Document Number 82546
Rev. 1.4, 01-Dec-03
www.vishay.com
9
TOIM4232
VISHAY
Vishay Semiconductors
Package Dimensions in mm
Package SO16L
10.5
10.1
9.25
8.75
7.5
7.3
2.45
2.25
1.27
0.25
0.10
0.49
0.35
8.89
16
10.56
10.15
0.3
0.2
9
technical drawings
according to DIN
specifications
13011
1
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10
8
Document Number 82546
Rev. 1.4, 01-Dec-03
TOIM4232
VISHAY
Vishay Semiconductors
Reel Dimensions
W1
Reel Hub
W2
14017
Tape Width
A max.
N
W1 min.
W2 max.
W3 min.
mm
mm
mm
mm
mm
mm
mm
16
330
50
16.4
22.4
15.9
19.4
Document Number 82546
Rev. 1.4, 01-Dec-03
W3 max.
www.vishay.com
11
TOIM4232
VISHAY
Vishay Semiconductors
Tape Dimensions in mm
18241
www.vishay.com
12
Document Number 82546
Rev. 1.4, 01-Dec-03
TOIM4232
VISHAY
Vishay Semiconductors
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and
operatingsystems with respect to their impact on the health and safety of our employees and the public, as
well as their impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are
known as ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs
and forbid their use within the next ten years. Various national and international initiatives are pressing for an
earlier ban on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the
use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments
respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design
and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each
customer application by the customer. Should the buyer use Vishay Semiconductors products for any
unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all
claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal
damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
Document Number 82546
Rev. 1.4, 01-Dec-03
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