|
|
Schnittstelle - I/O-Erweiterer 16B I/O Expander I2C interface
- MCP23018T-E/MJ
- Microchip Technology
-
1:
CHF 1.65
-
9'772Auf Lager
|
Mouser-Teilenr.
579-MCP23018T-E/MJ
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16B I/O Expander I2C interface
|
|
9'772Auf Lager
|
|
|
CHF 1.65
|
|
|
CHF 1.37
|
|
|
CHF 1.24
|
|
|
CHF 1.24
|
|
Min.: 1
Mult.: 1
|
|
|
|
SMD/SMT
|
QFN-24
|
I2C, Serial
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
3.4 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
Without ESD Protection
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp I2C interface
- MCP23017T-E/ML
- Microchip Technology
-
1:
CHF 1.54
-
19'888Auf Lager
|
Mouser-Teilenr.
579-MCP23017T-E/ML
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp I2C interface
|
|
19'888Auf Lager
|
|
|
CHF 1.54
|
|
|
CHF 1.29
|
|
|
CHF 1.17
|
|
|
CHF 1.17
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23017
|
SMD/SMT
|
QFN-28
|
I2C, Serial
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
1.7 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
- MCP23S17T-E/SS
- Microchip Technology
-
1:
CHF 1.44
-
11'730Auf Lager
|
Mouser-Teilenr.
579-MCP23S17T-E/SS
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
|
|
11'730Auf Lager
|
|
|
CHF 1.44
|
|
|
CHF 1.21
|
|
|
CHF 1.09
|
|
|
CHF 1.09
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23S17
|
SMD/SMT
|
SSOP-28
|
Serial, SPI
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
- MCP23S17T-E/SO
- Microchip Technology
-
1:
CHF 1.37
-
17'259Auf Lager
|
Mouser-Teilenr.
579-MCP23S17T-E/SO
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
|
|
17'259Auf Lager
|
|
|
CHF 1.37
|
|
|
CHF 1.13
|
|
|
CHF 1.04
|
|
|
CHF 1.04
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23S17
|
SMD/SMT
|
SOIC-28
|
Serial, SPI
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer Remote 4-Bit I² C and SMBus I/O exp
- TCA9536CDTMR
- Texas Instruments
-
1:
CHF 1.14
-
2'839Auf Lager
|
Mouser-Teilenr.
595-TCA9536CDTMR
|
Texas Instruments
|
Schnittstelle - I/O-Erweiterer Remote 4-Bit I² C and SMBus I/O exp
|
|
2'839Auf Lager
|
|
|
CHF 1.14
|
|
|
CHF 0.826
|
|
|
CHF 0.754
|
|
|
CHF 0.667
|
|
|
Anzeigen
|
|
|
CHF 0.595
|
|
|
CHF 0.625
|
|
|
CHF 0.60
|
|
|
CHF 0.595
|
|
|
CHF 0.595
|
|
Min.: 1
Mult.: 1
|
|
|
TCA9536
|
SMD/SMT
|
X2SON-8
|
|
|
|
|
|
|
|
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp I2C interface
- MCP23017-E/SO
- Microchip Technology
-
1:
CHF 1.31
-
47'912Auf Lager
|
Mouser-Teilenr.
579-MCP23017-E/SO
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp I2C interface
|
|
47'912Auf Lager
|
|
|
CHF 1.31
|
|
|
CHF 1.09
|
|
|
CHF 1.01
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23017
|
SMD/SMT
|
SOIC-28
|
I2C, Serial
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
1.7 MHz
|
- 40 C
|
+ 125 C
|
|
Tube
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
- MCP23S17-E/SS
- Microchip Technology
-
1:
CHF 1.44
-
17'825Auf Lager
|
Mouser-Teilenr.
579-MCP23S17-E/SS
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
|
|
17'825Auf Lager
|
|
|
CHF 1.44
|
|
|
CHF 1.21
|
|
|
CHF 1.09
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23S17
|
SMD/SMT
|
SSOP-28
|
Serial, SPI
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Tube
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
- MCP23S17T-E/ML
- Microchip Technology
-
1:
CHF 1.65
-
19'055Auf Lager
|
Mouser-Teilenr.
579-MCP23S17T-E/ML
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
|
|
19'055Auf Lager
|
|
|
CHF 1.65
|
|
|
CHF 1.37
|
|
|
CHF 1.24
|
|
|
CHF 1.24
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23S17
|
SMD/SMT
|
QFN-28
|
Serial, SPI
|
16 I/O
|
With Interrupt
|
4.5 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
- MCP23S17-E/SO
- Microchip Technology
-
1:
CHF 1.37
-
39'915Auf Lager
|
Mouser-Teilenr.
579-MCP23S17-E/SO
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
|
|
39'915Auf Lager
|
|
|
CHF 1.37
|
|
|
CHF 1.13
|
|
|
CHF 1.04
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23S17
|
SMD/SMT
|
SOIC-28
|
Serial, SPI
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Tube
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16-bit translating I C-bus/SMBus I/O exp
- TCAL6416DGSR
- Texas Instruments
-
1:
CHF 2.29
-
7'479Auf Lager
-
Neues Produkt
|
Mouser-Teilenr.
595-TCAL6416DGSR
Neues Produkt
|
Texas Instruments
|
Schnittstelle - I/O-Erweiterer 16-bit translating I C-bus/SMBus I/O exp
|
|
7'479Auf Lager
|
|
|
CHF 2.29
|
|
|
CHF 1.48
|
|
|
CHF 1.35
|
|
|
CHF 1.13
|
|
|
Anzeigen
|
|
|
CHF 0.788
|
|
|
CHF 1.07
|
|
|
CHF 0.932
|
|
|
CHF 0.795
|
|
|
CHF 0.788
|
|
|
CHF 0.788
|
|
Min.: 1
Mult.: 1
|
|
|
TCAL6416
|
SMD/SMT
|
VSSOP-24
|
I2C, Serial
|
16 I/O
|
With Interrupt
|
1.08 V
|
3.6 V
|
1 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape
|
With ESD Protection
|
|
|
|
Schnittstelle - I/O-Erweiterer Interface IO Expander TSSOP-24 T&R 3K
- PI4IOE5V6416ALEX
- Diodes Incorporated
-
1:
CHF 1.15
-
2'833Auf Lager
|
Mouser-Teilenr.
621-PI4IOE5V6416ALEX
|
Diodes Incorporated
|
Schnittstelle - I/O-Erweiterer Interface IO Expander TSSOP-24 T&R 3K
|
|
2'833Auf Lager
|
|
|
CHF 1.15
|
|
|
CHF 0.842
|
|
|
CHF 0.761
|
|
|
CHF 0.674
|
|
|
Anzeigen
|
|
|
CHF 0.527
|
|
|
CHF 0.634
|
|
|
CHF 0.609
|
|
|
CHF 0.527
|
|
|
CHF 0.527
|
|
Min.: 1
Mult.: 1
|
|
|
|
SMD/SMT
|
TSSOP-24
|
I2C, Serial
|
16 I/O
|
With Interrupt
|
1.65 V
|
5.5 V
|
1 MHz
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
2 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer Interface IO Expander V-QFN4040-24 T&R 3.5K
- PI4IOE5V6416AZDEX
- Diodes Incorporated
-
1:
CHF 0.951
-
4'643Auf Lager
|
Mouser-Teilenr.
621-PI4IOE5V6416AZDE
|
Diodes Incorporated
|
Schnittstelle - I/O-Erweiterer Interface IO Expander V-QFN4040-24 T&R 3.5K
|
|
4'643Auf Lager
|
|
|
CHF 0.951
|
|
|
CHF 0.684
|
|
|
CHF 0.619
|
|
|
CHF 0.547
|
|
|
CHF 0.426
|
|
|
Anzeigen
|
|
|
CHF 0.512
|
|
|
CHF 0.492
|
|
|
CHF 0.437
|
|
|
CHF 0.421
|
|
Min.: 1
Mult.: 1
|
|
|
|
SMD/SMT
|
TQFN-24
|
I2C, Serial
|
16 I/O
|
With Interrupt
|
1.65 V
|
5.5 V
|
400 kHz
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
2 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16-bit translating I C-bus/SMBus I/O exp
- TCAL6416RDTOR
- Texas Instruments
-
1:
CHF 2.36
-
1'340Auf Lager
-
Neues Produkt
|
Mouser-Teilenr.
595-TCAL6416RDTOR
Neues Produkt
|
Texas Instruments
|
Schnittstelle - I/O-Erweiterer 16-bit translating I C-bus/SMBus I/O exp
|
|
1'340Auf Lager
|
|
|
CHF 2.36
|
|
|
CHF 1.75
|
|
|
CHF 1.60
|
|
|
CHF 1.43
|
|
|
Anzeigen
|
|
|
CHF 1.36
|
|
|
CHF 1.24
|
|
|
CHF 1.15
|
|
|
CHF 0.999
|
|
|
CHF 0.989
|
|
Min.: 1
Mult.: 1
|
|
|
TCAL6416R
|
SMD/SMT
|
X2QFN-24
|
I2C, Serial, SMBus
|
|
With Interrupt
|
1.08 V
|
3.6 V
|
1 MHz
|
- 40 C
|
+ 125 C
|
|
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp I2C interface
- MCP23017-E/SP
- Microchip Technology
-
1:
CHF 1.37
-
5'640Auf Lager
|
Mouser-Teilenr.
579-MCP23017-E/SP
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp I2C interface
|
|
5'640Auf Lager
|
|
|
CHF 1.37
|
|
|
CHF 1.13
|
|
|
CHF 1.04
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23017
|
Through Hole
|
SPDIP-28
|
I2C, Serial
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
1.7 MHz
|
- 40 C
|
+ 125 C
|
|
Tube
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 8B I/O Expander SPI interface
- MCP23S09T-E/MG
- Microchip Technology
-
1:
CHF 1.38
-
1'242Auf Lager
-
2'500erwartet ab 05.03.2026
|
Mouser-Teilenr.
579-MCP23S09T-E/MG
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 8B I/O Expander SPI interface
|
|
1'242Auf Lager
2'500erwartet ab 05.03.2026
|
|
|
CHF 1.38
|
|
|
CHF 1.16
|
|
|
CHF 1.05
|
|
|
CHF 1.05
|
|
Min.: 1
Mult.: 1
|
|
|
|
SMD/SMT
|
QFN-16
|
Serial, SPI
|
8 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
- MCP23S17-E/SP
- Microchip Technology
-
1:
CHF 1.44
-
7'819Auf Lager
|
Mouser-Teilenr.
579-MCP23S17-E/SP
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 16bit Input/Output Exp SPI interface
|
|
7'819Auf Lager
|
|
|
CHF 1.44
|
|
|
CHF 1.21
|
|
|
CHF 1.09
|
|
Min.: 1
Mult.: 1
|
|
|
MCP23S17
|
Through Hole
|
SPDIP-28
|
Serial, SPI
|
16 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Tube
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9535DW
- PCA9535DWR
- Texas Instruments
-
1:
CHF 4.09
-
11'132Auf Lager
|
Mouser-Teilenr.
595-PCA9535DWR
|
Texas Instruments
|
Schnittstelle - I/O-Erweiterer 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9535DW
|
|
11'132Auf Lager
|
|
|
CHF 4.09
|
|
|
CHF 2.76
|
|
|
CHF 2.57
|
|
|
CHF 2.27
|
|
|
CHF 1.57
|
|
|
Anzeigen
|
|
|
CHF 2.15
|
|
|
CHF 1.93
|
|
|
CHF 1.85
|
|
|
CHF 1.54
|
|
Min.: 1
Mult.: 1
|
|
|
PCA9535
|
SMD/SMT
|
SOIC-24
|
I2C, Serial, SMBus
|
|
With Interrupt
|
2.3 V
|
5.5 V
|
400 kHz
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
2 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 1-Wire 8-Channel Addressable Switch
- DS2408S+T&R
- Analog Devices / Maxim Integrated
-
1:
CHF 10.39
-
2'901Auf Lager
|
Mouser-Teilenr.
700-DS2408S+T&R
|
Analog Devices / Maxim Integrated
|
Schnittstelle - I/O-Erweiterer 1-Wire 8-Channel Addressable Switch
|
|
2'901Auf Lager
|
|
|
CHF 10.39
|
|
|
CHF 7.89
|
|
|
CHF 7.56
|
|
|
CHF 6.67
|
|
|
Anzeigen
|
|
|
CHF 5.53
|
|
|
CHF 6.34
|
|
|
CHF 5.93
|
|
|
CHF 5.53
|
|
|
CHF 5.53
|
|
Min.: 1
Mult.: 1
|
|
|
DS2408S
|
SMD/SMT
|
SOIC-16
|
1-Wire
|
8 I/O
|
Without Interrupt
|
2.8 V
|
5.25 V
|
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
Without ESD Protection
|
|
|
|
Schnittstelle - I/O-Erweiterer 8bit Input/Output Exp SPI interface
- MCP23S08T-E/ML
- Microchip Technology
-
1:
CHF 1.34
-
2'926Auf Lager
|
Mouser-Teilenr.
579-MCP23S08T-E/ML
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 8bit Input/Output Exp SPI interface
|
|
2'926Auf Lager
|
|
|
CHF 1.34
|
|
|
CHF 1.12
|
|
|
CHF 1.12
|
|
Min.: 1
Mult.: 1
|
|
|
|
SMD/SMT
|
QFN-20
|
Serial, SPI
|
8 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
Without ESD Protection
|
|
|
|
Schnittstelle - I/O-Erweiterer Remote 4-Bit I² C and SMBus I/O exp
- TCA9537DGSR
- Texas Instruments
-
1:
CHF 1.21
-
2'713Auf Lager
|
Mouser-Teilenr.
595-TCA9537DGSR
|
Texas Instruments
|
Schnittstelle - I/O-Erweiterer Remote 4-Bit I² C and SMBus I/O exp
|
|
2'713Auf Lager
|
|
|
CHF 1.21
|
|
|
CHF 0.883
|
|
|
CHF 0.798
|
|
|
CHF 0.707
|
|
|
Anzeigen
|
|
|
CHF 0.595
|
|
|
CHF 0.664
|
|
|
CHF 0.639
|
|
|
CHF 0.617
|
|
|
CHF 0.595
|
|
Min.: 1
Mult.: 1
|
|
|
TCA9537
|
SMD/SMT
|
VSSOP-10
|
I2C, Serial
|
4 I/O
|
With Interrupt
|
1.65 V
|
5.5 V
|
1 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
2 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer 8-bit I2C-bus I/O Expander
- PI4IOE5V6408ZTAEX
- Diodes Incorporated
-
1:
CHF 0.624
-
8'690Auf Lager
|
Mouser-Teilenr.
729-I4IOE5V6408ZTAEX
|
Diodes Incorporated
|
Schnittstelle - I/O-Erweiterer 8-bit I2C-bus I/O Expander
|
|
8'690Auf Lager
|
|
|
CHF 0.624
|
|
|
CHF 0.446
|
|
|
CHF 0.401
|
|
|
CHF 0.351
|
|
|
CHF 0.28
|
|
|
Anzeigen
|
|
|
CHF 0.328
|
|
|
CHF 0.314
|
|
|
CHF 0.287
|
|
|
CHF 0.267
|
|
Min.: 1
Mult.: 1
|
|
|
PIO4IO
|
SMD/SMT
|
UQFN-16
|
I2C, Serial
|
8 I/O
|
With Interrupt
|
1.65 V
|
3.6 V
|
1 MHz
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape, MouseReel
|
2 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer In/Out I2C int
- MCP23008-E/P
- Microchip Technology
-
1:
CHF 1.24
-
1'396Auf Lager
|
Mouser-Teilenr.
579-MCP23008-E/P
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer In/Out I2C int
|
|
1'396Auf Lager
|
|
Min.: 1
Mult.: 1
|
|
|
|
Through Hole
|
PDIP-18
|
I2C, Serial
|
8 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
1.7 MHz
|
- 40 C
|
+ 125 C
|
|
Tube
|
Without ESD Protection
|
|
|
|
Schnittstelle - I/O-Erweiterer 8B I/O Expander SPI interface
- MCP23009T-E/MG
- Microchip Technology
-
1:
CHF 1.32
-
2'166Auf Lager
-
6'600erwartet ab 02.03.2026
|
Mouser-Teilenr.
579-MCP23009T-E/MG
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer 8B I/O Expander SPI interface
|
|
2'166Auf Lager
6'600erwartet ab 02.03.2026
|
|
|
CHF 1.32
|
|
|
CHF 1.10
|
|
|
CHF 1.02
|
|
|
CHF 1.02
|
|
Min.: 1
Mult.: 1
|
|
|
|
SMD/SMT
|
QFN-16
|
I2C, Serial
|
8 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
3.4 MHz
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
4 kV
|
|
|
|
Schnittstelle - I/O-Erweiterer In/Out SPI int
- MCP23S08-E/P
- Microchip Technology
-
1:
CHF 1.30
-
1'325Auf Lager
|
Mouser-Teilenr.
579-MCP23S08-E/P
|
Microchip Technology
|
Schnittstelle - I/O-Erweiterer In/Out SPI int
|
|
1'325Auf Lager
|
|
|
CHF 1.30
|
|
|
CHF 1.09
|
|
|
CHF 1.07
|
|
Min.: 1
Mult.: 1
|
|
|
|
Through Hole
|
PDIP-18
|
Serial, SPI
|
8 I/O
|
With Interrupt
|
1.8 V
|
5.5 V
|
10 MHz
|
- 40 C
|
+ 125 C
|
|
Tube
|
Without ESD Protection
|
|
|
|
Schnittstelle - I/O-Erweiterer Interface IO Expander TSSOP-16 T&R 2.5K
- PI4IOE5V9538LEX
- Diodes Incorporated
-
1:
CHF 0.923
-
2'149Auf Lager
|
Mouser-Teilenr.
729-PI4IOE5V9538LEX
|
Diodes Incorporated
|
Schnittstelle - I/O-Erweiterer Interface IO Expander TSSOP-16 T&R 2.5K
|
|
2'149Auf Lager
|
|
|
CHF 0.923
|
|
|
CHF 0.669
|
|
|
CHF 0.605
|
|
|
CHF 0.534
|
|
|
CHF 0.43
|
|
|
Anzeigen
|
|
|
CHF 0.50
|
|
|
CHF 0.483
|
|
|
CHF 0.446
|
|
|
CHF 0.422
|
|
Min.: 1
Mult.: 1
|
|
|
PIO4IO
|
SMD/SMT
|
TSSOP-16
|
|
|
|
|
|
|
|
|
|
Reel, Cut Tape
|
|
|
Liechtenstein
