Page 86 - Interface - Drivers, Receivers, Transceivers | Integrated Circuits (ICs) | Heisener Electronics
Contact Us
SalesDept@heisener.com 86-755-83210559-817
Login/Register
Language Translation

* Please refer to the English Version as our Official Version.

BOM
Cart 0

Interface - Drivers, Receivers, Transceivers

Records 16,516
Page  86/551
Image
Part Number
Manufacturer
Description
Package
Stock
Quantity
Protocol
Number of Drivers/Receivers
Duplex
Receiver Hysteresis
Data Rate
Voltage - Supply
Operating Temperature
Mounting Type
Package / Case
Supplier Device Package
AS1151-T
ams

IC LVDS RECEIVER QUAD 16-TSSOP

  • Type: Receiver
  • Protocol: LVDS
  • Number of Drivers/Receivers: 0/4
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: 500Mbps (Up to)
  • Voltage - Supply: 3 V ~ 3.6 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 16-TSSOP (0.173", 4.40mm Width)
  • Supplier Device Package: 16-TSSOP
Package: 16-TSSOP (0.173", 4.40mm Width)
Stock7,024
LVDS
0/4
-
-
500Mbps (Up to)
3 V ~ 3.6 V
-40°C ~ 85°C
Surface Mount
16-TSSOP (0.173", 4.40mm Width)
16-TSSOP
hot TRS202CDWR
Texas Instruments

IC DVR/RCVR RS232 ESD DL 16SOIC

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 2/2
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 120Kbps
  • Voltage - Supply: 4.5 V ~ 5.5 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Surface Mount
  • Package / Case: 16-SOIC (0.295", 7.50mm Width)
  • Supplier Device Package: 16-SOIC
Package: 16-SOIC (0.295", 7.50mm Width)
Stock117,900
RS232
2/2
Full
500mV
120Kbps
4.5 V ~ 5.5 V
0°C ~ 70°C
Surface Mount
16-SOIC (0.295", 7.50mm Width)
16-SOIC
TJA1050T/V,118
NXP

IC TXRX CAN HS 5.25V 8-SOIC

  • Type: Transceiver
  • Protocol: CAN
  • Number of Drivers/Receivers: 1/1
  • Duplex: Half
  • Receiver Hysteresis: 70mV
  • Data Rate: -
  • Voltage - Supply: 4.75 V ~ 5.25 V
  • Operating Temperature: -40°C ~ 150°C
  • Mounting Type: Surface Mount
  • Package / Case: 8-SOIC (0.154", 3.90mm Width)
  • Supplier Device Package: 8-SO
Package: 8-SOIC (0.154", 3.90mm Width)
Stock6,480
CAN
1/1
Half
70mV
-
4.75 V ~ 5.25 V
-40°C ~ 150°C
Surface Mount
8-SOIC (0.154", 3.90mm Width)
8-SO
TRSF3222ECDW
Texas Instruments

IC DVR/RCVR RS232 ESD 20SOIC

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 2/2
  • Duplex: Full
  • Receiver Hysteresis: 300mV
  • Data Rate: 500kbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Surface Mount
  • Package / Case: 20-SOIC (0.295", 7.50mm Width)
  • Supplier Device Package: 20-SOIC
Package: 20-SOIC (0.295", 7.50mm Width)
Stock4,064
RS232
2/2
Full
300mV
500kbps
3 V ~ 5.5 V
0°C ~ 70°C
Surface Mount
20-SOIC (0.295", 7.50mm Width)
20-SOIC
hot CY7B923-JXCT
Cypress Semiconductor Corp

IC TRANSMITTER HOTLINK 28-PLCC

  • Type: Driver
  • Protocol: Fibre Channel
  • Number of Drivers/Receivers: -
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: -
  • Voltage - Supply: 4.5 V ~ 5.5 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Surface Mount
  • Package / Case: 28-LCC (J-Lead)
  • Supplier Device Package: 28-PLCC (11.51x11.51)
Package: 28-LCC (J-Lead)
Stock10,152
Fibre Channel
-
-
-
-
4.5 V ~ 5.5 V
0°C ~ 70°C
Surface Mount
28-LCC (J-Lead)
28-PLCC (11.51x11.51)
ICL3241EIBZ
Intersil

IC 3DRVR/5RCVR RS232 3V 28-SOIC

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 3/5
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 250kbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 28-SOIC (0.295", 7.50mm Width)
  • Supplier Device Package: 28-SOIC
Package: 28-SOIC (0.295", 7.50mm Width)
Stock6,752
RS232
3/5
Full
500mV
250kbps
3 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
28-SOIC (0.295", 7.50mm Width)
28-SOIC
ICL3221EIV
Intersil

IC TXRX SGL RS232 3-5.5V 16TSSOP

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 1/1
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 250kbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 16-TSSOP (0.173", 4.40mm Width)
  • Supplier Device Package: 16-TSSOP
Package: 16-TSSOP (0.173", 4.40mm Width)
Stock7,088
RS232
1/1
Full
500mV
250kbps
3 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
16-TSSOP (0.173", 4.40mm Width)
16-TSSOP
EL9111IL-T13
Intersil

IC DIFF RCVR/EQUALZR TRPL 28-QFN

  • Type: Receiver
  • Protocol: -
  • Number of Drivers/Receivers: 0/3
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: -
  • Voltage - Supply: 5V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 28-VFQFN Exposed Pad
  • Supplier Device Package: -
Package: 28-VFQFN Exposed Pad
Stock6,032
-
0/3
-
-
-
5V
-40°C ~ 85°C
Surface Mount
28-VFQFN Exposed Pad
-
MAX331CPE
Maxim Integrated

IC SW ANLG CMOS SPST N/C 16-DIP

  • Type: -
  • Protocol: -
  • Number of Drivers/Receivers: -
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: -
  • Voltage - Supply: -
  • Operating Temperature: -
  • Mounting Type: -
  • Package / Case: -
  • Supplier Device Package: -
Package: -
Stock4,448
-
-
-
-
-
-
-
-
-
-
hot MAX3212CWI
Maxim Integrated

IC TXRX RS232 3DVR 5RCVR 28-SOIC

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 3/5
  • Duplex: Full
  • Receiver Hysteresis: 700mV
  • Data Rate: 235Kbps
  • Voltage - Supply: 2.7 V ~ 3.6 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Surface Mount
  • Package / Case: 28-SOIC (0.295", 7.50mm Width)
  • Supplier Device Package: 28-SO
Package: 28-SOIC (0.295", 7.50mm Width)
Stock24,180
RS232
3/5
Full
700mV
235Kbps
2.7 V ~ 3.6 V
0°C ~ 70°C
Surface Mount
28-SOIC (0.295", 7.50mm Width)
28-SO
TSB41BA3APFPG4
Texas Instruments

IC 3PRT CABLE TXRX/ARBIT 80HTQFP

  • Type: Transceiver
  • Protocol: IEEE 1394
  • Number of Drivers/Receivers: -
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: -
  • Voltage - Supply: 1.65 V ~ 3.6 V
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 80-TQFP Exposed Pad
  • Supplier Device Package: 80-HTQFP (12x12)
Package: 80-TQFP Exposed Pad
Stock4,112
IEEE 1394
-
-
-
-
1.65 V ~ 3.6 V
-
Surface Mount
80-TQFP Exposed Pad
80-HTQFP (12x12)
MAX3241ECWI+T
Maxim Integrated

IC TXRX RS-232 LP 28-SOIC

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 3/5
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 250kbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Surface Mount
  • Package / Case: 28-SOIC (0.295", 7.50mm Width)
  • Supplier Device Package: 28-SOIC
Package: 28-SOIC (0.295", 7.50mm Width)
Stock5,072
RS232
3/5
Full
500mV
250kbps
3 V ~ 5.5 V
0°C ~ 70°C
Surface Mount
28-SOIC (0.295", 7.50mm Width)
28-SOIC
hot MAX3157EAI+T
Maxim Integrated

IC TXRX RS485/422 250KBPS 28SSOP

  • Type: Transceiver
  • Protocol: RS422, RS485
  • Number of Drivers/Receivers: 1/1
  • Duplex: Full
  • Receiver Hysteresis: 25mV
  • Data Rate: 250kbps
  • Voltage - Supply: 4.75 V ~ 5.25 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 28-SSOP (0.209", 5.30mm Width)
  • Supplier Device Package: 28-SSOP
Package: 28-SSOP (0.209", 5.30mm Width)
Stock9,204
RS422, RS485
1/1
Full
25mV
250kbps
4.75 V ~ 5.25 V
-40°C ~ 85°C
Surface Mount
28-SSOP (0.209", 5.30mm Width)
28-SSOP
MAX14821ETG+T
Maxim Integrated

IC IO-LINK 24-TQFN

  • Type: Transceiver
  • Protocol: IO-Link
  • Number of Drivers/Receivers: 1/1
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: 230.4Kbps
  • Voltage - Supply: 9 V ~ 36 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 24-WFQFN Exposed Pad
  • Supplier Device Package: 24-TQFN
Package: 24-WFQFN Exposed Pad
Stock2,992
IO-Link
1/1
-
-
230.4Kbps
9 V ~ 36 V
-40°C ~ 85°C
Surface Mount
24-WFQFN Exposed Pad
24-TQFN
MAX3318EIDBG4
Texas Instruments

IC RS232 2.5V IEC ESD 20-SSOP

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 2/2
  • Duplex: Full
  • Receiver Hysteresis: 300mV
  • Data Rate: 460Kbps
  • Voltage - Supply: 2.25 V ~ 3 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 20-SSOP (0.209", 5.30mm Width)
  • Supplier Device Package: 20-SSOP
Package: 20-SSOP (0.209", 5.30mm Width)
Stock5,280
RS232
2/2
Full
300mV
460Kbps
2.25 V ~ 3 V
-40°C ~ 85°C
Surface Mount
20-SSOP (0.209", 5.30mm Width)
20-SSOP
ICL3226IAZ
Intersil

IC 1DRVR/1RCVR RS232 3V 16-SSOP

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 1/1
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 250kbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 16-SSOP (0.209", 5.30mm Width)
  • Supplier Device Package: 16-SSOP
Package: 16-SSOP (0.209", 5.30mm Width)
Stock2,880
RS232
1/1
Full
500mV
250kbps
3 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
16-SSOP (0.209", 5.30mm Width)
16-SSOP
hot ICL3207ECAZ
Intersil

IC 5DRVR/3RCVR RS232 3V 24-SSOP

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 5/3
  • Duplex: Full
  • Receiver Hysteresis: 300mV
  • Data Rate: 250kbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Surface Mount
  • Package / Case: 24-SSOP (0.209", 5.30mm Width)
  • Supplier Device Package: 24-SSOP
Package: 24-SSOP (0.209", 5.30mm Width)
Stock60,600
RS232
5/3
Full
300mV
250kbps
3 V ~ 5.5 V
0°C ~ 70°C
Surface Mount
24-SSOP (0.209", 5.30mm Width)
24-SSOP
ISL83082EIBZ
Intersil

IC TXRX RS485/422 5V ESD 8SOIC

  • Type: Transceiver
  • Protocol: RS422, RS485
  • Number of Drivers/Receivers: 1/1
  • Duplex: Half
  • Receiver Hysteresis: 20mV
  • Data Rate: 115Kbps
  • Voltage - Supply: 4.5 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 8-SOIC (0.154", 3.90mm Width)
  • Supplier Device Package: 8-SOIC
Package: 8-SOIC (0.154", 3.90mm Width)
Stock15,156
RS422, RS485
1/1
Half
20mV
115Kbps
4.5 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
8-SOIC (0.154", 3.90mm Width)
8-SOIC
hot FIN1048MX
Fairchild/ON Semiconductor

IC RCVR QUAD 3.3V HS LVDS 16SOIC

  • Type: Receiver
  • Protocol: LVDS
  • Number of Drivers/Receivers: 0/4
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: 400Mbps
  • Voltage - Supply: 3 V ~ 3.6 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 16-SOIC (0.154", 3.90mm Width)
  • Supplier Device Package: 16-SOIC
Package: 16-SOIC (0.154", 3.90mm Width)
Stock112,560
LVDS
0/4
-
-
400Mbps
3 V ~ 3.6 V
-40°C ~ 85°C
Surface Mount
16-SOIC (0.154", 3.90mm Width)
16-SOIC
hot USB1T1103MPX
Fairchild/ON Semiconductor

IC TXRX USB VOLT REG 2.5MM 14MLP

  • Type: Transceiver
  • Protocol: USB 2.0
  • Number of Drivers/Receivers: 1/1
  • Duplex: Half
  • Receiver Hysteresis: 450mV
  • Data Rate: 12Mbps
  • Voltage - Supply: 4 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 14-WFQFN Exposed Pad
  • Supplier Device Package: 14-MLP (2.5x2.5)
Package: 14-WFQFN Exposed Pad
Stock586,440
USB 2.0
1/1
Half
450mV
12Mbps
4 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
14-WFQFN Exposed Pad
14-MLP (2.5x2.5)
MAX3080ECPD+
Maxim Integrated

IC TXRX RS485/422 10MBPS 14-DIP

  • Type: Transceiver
  • Protocol: RS422, RS485
  • Number of Drivers/Receivers: 1/1
  • Duplex: Full
  • Receiver Hysteresis: 100mV
  • Data Rate: 115Kbps
  • Voltage - Supply: 4.75 V ~ 5.25 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Through Hole
  • Package / Case: 14-DIP (0.300", 7.62mm)
  • Supplier Device Package: 14-PDIP
Package: 14-DIP (0.300", 7.62mm)
Stock6,396
RS422, RS485
1/1
Full
100mV
115Kbps
4.75 V ~ 5.25 V
0°C ~ 70°C
Through Hole
14-DIP (0.300", 7.62mm)
14-PDIP
hot MAX232EEWE+
Maxim Integrated

IC RS-232 DRVR/RCVR 16-SOIC

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 2/2
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 120Kbps
  • Voltage - Supply: 4.5 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 16-SOIC (0.295", 7.50mm Width)
  • Supplier Device Package: 16-SOIC
Package: 16-SOIC (0.295", 7.50mm Width)
Stock7,536
RS232
2/2
Full
500mV
120Kbps
4.5 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
16-SOIC (0.295", 7.50mm Width)
16-SOIC
hot DS90LV047ATMTC
Texas Instruments

IC LINE DRIVER QUAD CMOS 16TSSOP

  • Type: Driver
  • Protocol: LVDS
  • Number of Drivers/Receivers: 4/0
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: 400Mbps
  • Voltage - Supply: 3 V ~ 3.6 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 16-TSSOP (0.173", 4.40mm Width)
  • Supplier Device Package: -
Package: 16-TSSOP (0.173", 4.40mm Width)
Stock148,896
LVDS
4/0
-
-
400Mbps
3 V ~ 3.6 V
-40°C ~ 85°C
Surface Mount
16-TSSOP (0.173", 4.40mm Width)
-
LTC1686IS8#PBF
Linear Technology

IC TXRX RS485 PREC DELAY 8-SOIC

  • Type: Transceiver
  • Protocol: RS422, RS485
  • Number of Drivers/Receivers: 1/1
  • Duplex: Full
  • Receiver Hysteresis: 25mV
  • Data Rate: 52Mbps
  • Voltage - Supply: 4.75 V ~ 5.25 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 8-SOIC (0.154", 3.90mm Width)
  • Supplier Device Package: 8-SOIC
Package: 8-SOIC (0.154", 3.90mm Width)
Stock7,056
RS422, RS485
1/1
Full
25mV
52Mbps
4.75 V ~ 5.25 V
-40°C ~ 85°C
Surface Mount
8-SOIC (0.154", 3.90mm Width)
8-SOIC
ADM3066EARMZ
Analog Devices Inc.

IC TXRX RS485/422 3->5V WITH VIO

  • Type: Transceiver
  • Protocol: RS485
  • Number of Drivers/Receivers: 1/1
  • Duplex: Half
  • Receiver Hysteresis: 30mV
  • Data Rate: 50Mbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
  • Supplier Device Package: 10-MSOP
Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Stock9,780
RS485
1/1
Half
30mV
50Mbps
3 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
10-MSOP
MAX9112EKA+G035
Maxim Integrated

INTEGRATED CIRCUIT

  • Type: -
  • Protocol: -
  • Number of Drivers/Receivers: -
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: -
  • Voltage - Supply: -
  • Operating Temperature: -
  • Mounting Type: -
  • Package / Case: -
  • Supplier Device Package: -
Package: -
Stock7,552
-
-
-
-
-
-
-
-
-
-
TLIN1024RGYTQ1
Texas Instruments

INTERFACE TX/RX/TXRX MISC

  • Type: -
  • Protocol: -
  • Number of Drivers/Receivers: -
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: -
  • Voltage - Supply: -
  • Operating Temperature: -
  • Mounting Type: -
  • Package / Case: -
  • Supplier Device Package: -
Package: -
Stock4,192
-
-
-
-
-
-
-
-
-
-
HIN208EIAZ-T
Renesas Electronics America

IC TXRX 4/4 RS232 FULL 24SSOP

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 4/4
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 230kbps
  • Voltage - Supply: 4.5 V ~ 5.5 V
  • Operating Temperature: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • Package / Case: 24-SSOP (0.209", 5.30mm Width)
  • Supplier Device Package: 24-SSOP
Package: 24-SSOP (0.209", 5.30mm Width)
Stock3,056
RS232
4/4
Full
500mV
230kbps
4.5 V ~ 5.5 V
-40°C ~ 85°C
Surface Mount
24-SSOP (0.209", 5.30mm Width)
24-SSOP
hot ICL3222ECVZ
Renesas Electronics America

IC TXRX 2/2 FULL RS232 20TSSOP

  • Type: Transceiver
  • Protocol: RS232
  • Number of Drivers/Receivers: 2/2
  • Duplex: Full
  • Receiver Hysteresis: 500mV
  • Data Rate: 250kbps
  • Voltage - Supply: 3 V ~ 5.5 V
  • Operating Temperature: 0°C ~ 70°C
  • Mounting Type: Surface Mount
  • Package / Case: 20-TSSOP (0.173", 4.40mm Width)
  • Supplier Device Package: 20-TSSOP
Package: 20-TSSOP (0.173", 4.40mm Width)
Stock8,328
RS232
2/2
Full
500mV
250kbps
3 V ~ 5.5 V
0°C ~ 70°C
Surface Mount
20-TSSOP (0.173", 4.40mm Width)
20-TSSOP
LE87401NQCT
Microchip Technology

IC DRIVER 2/0 16QFN

  • Type: Driver
  • Protocol: -
  • Number of Drivers/Receivers: 2/0
  • Duplex: -
  • Receiver Hysteresis: -
  • Data Rate: -
  • Voltage - Supply: 12V
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 16-VQFN Exposed Pad
  • Supplier Device Package: 16-QFN (4x4)
Package: 16-VQFN Exposed Pad
Stock3,680
-
2/0
-
-
-
12V
-
Surface Mount
16-VQFN Exposed Pad
16-QFN (4x4)