RS-485 Interface IC 5kVRMS Isolated 500kbps Half-DuplexRS-485/RS-422 Transceiver with 30kV ESDProtection and Integrated Transformer Driver
+4 images
MAX14949EWE+
Analog Devices / Maxim Integrated
1:
NT$475.73
802 In Stock
Mouser Part # 700-MAX14949EWE+
Analog Devices / Maxim Integrated
RS-485 Interface IC 5kVRMS Isolated 500kbps Half-DuplexRS-485/RS-422 Transceiver with 30kV ESDProtection and Integrated Transformer Driver
Product Comments
802 In Stock
Alternative Packaging
1
NT$475.73
10
NT$372.48
25
NT$347.03
92
NT$318.35
276
View
276
NT$315.12
506
NT$296.48
Buy
Min.: 1 Mult.: 1
Max.: 641
Details
SMD/SMT
SOIC-Wide-16
MAX14949
Transceiver
500 kb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
3 V
4.7 mA, 6.3 mA
- 40 C
+ 85 C
30 kV
RS-485 Transceivers
Tube
RS-485 Interface IC 80V Fault-Protected, Fail-Safe, 1/4-Unit Load, +3.3V RS-485 Transceiver
+2 images
MAX3430CSA+
Analog Devices / Maxim Integrated
1:
NT$375.35
641 In Stock
Mouser Part # 700-MAX3430CSA
Analog Devices / Maxim Integrated
RS-485 Interface IC 80V Fault-Protected, Fail-Safe, 1/4-Unit Load, +3.3V RS-485 Transceiver
Product Comments
641 In Stock
Alternative Packaging
1
NT$375.35
10
NT$291.82
25
NT$271.74
100
NT$230.52
Buy
Min.: 1 Mult.: 1
Max.: 512
Details
SMD/SMT
SOIC-8
MAX3430
Transceiver
250 kb/s
1 Driver
1 Receiver
Half Duplex
3.63 V
2.97 V
3.5 mA
0 C
+ 70 C
12 kV
RS-485 Transceivers
Tube
RS-485 Interface IC 15kV ESD-Protected, 60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers
+2 images
MAX3443EASA+
Analog Devices / Maxim Integrated
1:
NT$505.49
1,034 In Stock
Mouser Part # 700-MAX3443EASA
Analog Devices / Maxim Integrated
RS-485 Interface IC 15kV ESD-Protected, 60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers
Product Comments
1,034 In Stock
Alternative Packaging
1
NT$505.49
10
NT$396.14
25
NT$351.33
100
NT$311.18
300
View
300
NT$309.39
500
NT$297.91
Buy
Min.: 1 Mult.: 1
Max.: 827
Details
SMD/SMT
SOIC-8
MAX3443E
Transceiver
10 Mb/s
1 Driver
1 Receiver
Half Duplex
5.25 V
4.75 V
10 mA
- 40 C
+ 125 C
15 kV
RS-485 Transceivers
Tube
RS-485 Interface IC 5.0 kV, 10 Mbps Isolated Half-Duplex RS-485 Transceiver
SI85835D-IS
Skyworks Solutions, Inc.
1:
NT$196.46
285 In Stock
Mouser Part # 873-SI85835D-IS
Skyworks Solutions, Inc.
RS-485 Interface IC 5.0 kV, 10 Mbps Isolated Half-Duplex RS-485 Transceiver
285 In Stock
1
NT$196.46
10
NT$149.85
25
NT$133.72
92
NT$124.04
276
View
276
NT$122.97
506
NT$115.44
1,012
NT$113.29
2,530
NT$110.78
Buy
Min.: 1 Mult.: 1
Details
SMD/SMT
SOIC-16
SI858x
Transceiver
10 Mb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
2.5 V
92 mA
- 40 C
+ 125 C
RS-485 Transceivers
Tube
RS-485 Interface IC 5.0 kV, 1 Mbps Isolated Full-Duplex RS-485 Transceiver
SI85857D-IS
Skyworks Solutions, Inc.
1:
NT$153.08
355 In Stock
Mouser Part # 873-SI85857D-IS
Skyworks Solutions, Inc.
RS-485 Interface IC 5.0 kV, 1 Mbps Isolated Full-Duplex RS-485 Transceiver
355 In Stock
1
NT$153.08
10
NT$115.80
25
NT$101.81
92
NT$94.29
276
View
276
NT$90.70
506
NT$88.19
1,012
NT$85.68
2,530
NT$83.17
Buy
Min.: 1 Mult.: 1
Details
SMD/SMT
SOIC-16
SI858x
Transceiver
1 Mb/s
1 Driver
1 Receiver
Full Duplex
5.5 V
2.5 V
72 mA
- 40 C
+ 125 C
RS-485 Transceivers
Tube
RS-485 Interface IC Ext Temp Range RS485 Transceiver A 595-S A 595-SN55LBC180RSAT
SN55LBC180RSAR
Texas Instruments
1:
NT$177.10
3,200 In Stock
Mouser Part # 595-SN55LBC180RSAR
Texas Instruments
RS-485 Interface IC Ext Temp Range RS485 Transceiver A 595-S A 595-SN55LBC180RSAT
3,200 In Stock
Alternative Packaging
1
NT$177.10
10
NT$150.57
3,000
NT$107.55
Buy
Min.: 1 Mult.: 1
Reel :3,000
Details
SMD/SMT
QFN-16
SN55LBC180
Transceiver
10 Mb/s
1 Driver
1 Receiver
Full Duplex
5.25 V
4.75 V
4 mA
- 55 C
+ 125 C
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Differential Bus A 5 95-SN65176BD A 595- A 595-SN65176BD
SN65176BDR
Texas Instruments
1:
NT$47.32
6,929 In Stock
35,000 Expected 12/4/2026
Mouser Part # 595-SN65176BDR
Texas Instruments
RS-485 Interface IC Differential Bus A 5 95-SN65176BD A 595- A 595-SN65176BD
6,929 In Stock
35,000 Expected 12/4/2026
Alternative Packaging
1
NT$47.32
10
NT$34.24
25
NT$31.44
100
NT$28.43
2,500
NT$24.52
5,000
View
250
NT$27.00
500
NT$26.13
1,000
NT$25.45
5,000
NT$23.98
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65176B
Transceiver
10 Mb/s
1 Driver
1 Receiver
Half Duplex
5.25 V
4.75 V
70 mA
- 40 C
+ 105 C
Without ESD Protection
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Diff Bus Trans
+1 image
SN65176BP
Texas Instruments
1:
NT$77.44
4,631 In Stock
Mouser Part # 595-SN65176BP
Texas Instruments
RS-485 Interface IC Diff Bus Trans
4,631 In Stock
1
NT$77.44
10
NT$57.36
50
NT$49.11
100
NT$46.61
250
View
250
NT$43.74
500
NT$42.30
1,000
NT$39.79
2,500
NT$38.72
5,000
NT$37.64
Buy
Min.: 1 Mult.: 1
Details
Through Hole
PDIP-8
SN65176B
Transceiver
10 Mb/s
1 Driver
1 Receiver
Half Duplex
5.25 V
4.75 V
70 mA
- 40 C
+ 105 C
Without ESD Protection
RS-485 Transceivers
Tube
RS-485 Interface IC High-Output RS-485 T ransceiver A 595-SN A 595-SN65HVD05D
SN65HVD05DR
Texas Instruments
1:
NT$173.87
1,433 In Stock
2,500 Expected 9/25/2026
Mouser Part # 595-SN65HVD05DR
Texas Instruments
RS-485 Interface IC High-Output RS-485 T ransceiver A 595-SN A 595-SN65HVD05D
1,433 In Stock
2,500 Expected 9/25/2026
Alternative Packaging
1
NT$173.87
10
NT$132.29
25
NT$121.89
100
NT$110.42
250
View
2,500
NT$93.93
250
NT$105.04
1,000
NT$101.46
2,500
NT$93.93
5,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD05
Transceiver
40 Mb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
4.5 V
15 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC 9Ch RS485/RS422 Xcvr A 595-SN65HVD09DGG A 595-SN65HVD09DGG
SN65HVD09DGGR
Texas Instruments
1:
NT$374.63
1,275 In Stock
Mouser Part # 595-SN65HVD09DGGR
Texas Instruments
RS-485 Interface IC 9Ch RS485/RS422 Xcvr A 595-SN65HVD09DGG A 595-SN65HVD09DGG
1,275 In Stock
Alternative Packaging
1
NT$374.63
10
NT$292.54
25
NT$272.10
100
NT$249.52
250
View
2,000
NT$214.38
250
NT$237.69
500
NT$232.67
1,000
NT$227.29
2,000
NT$214.38
Buy
Min.: 1 Mult.: 1
Reel :2,000
Details
SMD/SMT
TSSOP-56
SN65HVD09
Transceiver
20 Mb/s
9 Driver
9 Receiver
Half Duplex
5 V
5 V
60 mA
- 40 C
+ 85 C
12 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC 3.3V Differential Tr ansceivers A 595-SN A 595-SN65HVD10D
SN65HVD10DR
Texas Instruments
1:
NT$178.17
2,357 In Stock
37,500 On Order
Mouser Part # 595-SN65HVD10DR
Texas Instruments
RS-485 Interface IC 3.3V Differential Tr ansceivers A 595-SN A 595-SN65HVD10D
2,357 In Stock
37,500 On Order
View Dates
Alternative Packaging
Stock:
2,357 Can Ship Immediately
On Order:
17,500 Expected 4/5/2027
20,000 Expected 4/29/2027
Factory Lead-Time:
16 Weeks
1
NT$178.17
10
NT$134.44
25
NT$123.32
100
NT$111.14
250
View
2,500
NT$96.44
250
NT$105.40
500
NT$104.68
1,000
NT$98.59
2,500
NT$96.44
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD10
Transceiver
32 Mb/s
1 Driver
1 Receiver
Half Duplex
3.6 V
3 V
15.5 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC 3.3V Differential Tr ansceivers ALT 595- ALT 595-SN65HVD10DR
SN65HVD10DRG4
Texas Instruments
1:
NT$178.53
1,526 In Stock
Mouser Part # 595-SN65HVD10DRG4
Texas Instruments
RS-485 Interface IC 3.3V Differential Tr ansceivers ALT 595- ALT 595-SN65HVD10DR
Product Comments
1,526 In Stock
Alternative Packaging
1
NT$178.53
10
NT$134.44
25
NT$123.68
100
NT$111.49
2,500
NT$84.96
5,000
View
250
NT$105.76
500
NT$105.04
1,000
NT$98.95
5,000
NT$84.61
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD10
Transceiver
32 Mb/s
1 Driver
1 Receiver
Half Duplex
3.6 V
3 V
15.5 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC 3.3V Differential Tr ansceivers A 595-SN A 595-SN65HVD10QD
SN65HVD10QDR
Texas Instruments
1:
NT$173.87
3,197 In Stock
Mouser Part # 595-SN65HVD10QDR
Texas Instruments
RS-485 Interface IC 3.3V Differential Tr ansceivers A 595-SN A 595-SN65HVD10QD
3,197 In Stock
Alternative Packaging
1
NT$173.87
10
NT$132.29
25
NT$121.89
100
NT$110.42
250
View
2,500
NT$95.72
250
NT$105.04
1,000
NT$101.46
2,500
NT$95.72
5,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD10
Transceiver
32 Mb/s
1 Driver
1 Receiver
Half Duplex
3.6 V
3 V
15.5 mA
- 40 C
+ 125 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Mil Enhance 3.3V RS- 485 Xcvr
SN65HVD10QDREP
Texas Instruments
1:
NT$531.66
492 In Stock
Mouser Part # 595-SN65HVD10QDREP
Texas Instruments
RS-485 Interface IC Mil Enhance 3.3V RS- 485 Xcvr
Product Comments
492 In Stock
1
NT$531.66
10
NT$420.16
25
NT$392.20
100
NT$361.37
500
View
2,500
NT$318.35
500
NT$349.54
1,000
NT$342.37
2,500
NT$318.35
5,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD10
Transceiver
25 Mb/s
1 Driver
1 Receiver
Half Duplex
3.6 V
3 V
15.5 mA
- 55 C
+ 125 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC 3.3V Differential Tr ansceivers A 595-SN A 595-SN65HVD12D
SN65HVD12DR
Texas Instruments
1:
NT$173.87
53 In Stock
12,500 Expected 12/17/2026
Mouser Part # 595-SN65HVD12DR
Texas Instruments
RS-485 Interface IC 3.3V Differential Tr ansceivers A 595-SN A 595-SN65HVD12D
53 In Stock
12,500 Expected 12/17/2026
Alternative Packaging
1
NT$173.87
10
NT$132.29
25
NT$121.89
100
NT$110.42
250
View
2,500
NT$98.59
250
NT$105.04
1,000
NT$101.46
2,500
NT$98.59
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD12
Transceiver
1 Mb/s
1 Driver
1 Receiver
Half Duplex
3.6 V
3 V
15.5 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC 3.3V Differential Tr ansceivers ALT 595- ALT 595-SN65HVD12DR
SN65HVD12DRG4
Texas Instruments
1:
NT$135.15
1,221 In Stock
Mouser Part # 595-SN65HVD12DRG4
Texas Instruments
RS-485 Interface IC 3.3V Differential Tr ansceivers ALT 595- ALT 595-SN65HVD12DR
Product Comments
1,221 In Stock
Alternative Packaging
1
NT$135.15
10
NT$102.17
25
NT$93.57
100
NT$86.04
2,500
NT$83.17
5,000
NT$82.46
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD12
Transceiver
1 Mb/s
1 Driver
1 Receiver
Half Duplex
3.6 V
3 V
15.5 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC 3.3V RS485
+1 image
SN65HVD12P
Texas Instruments
1:
NT$290.74
309 In Stock
Mouser Part # 595-SN65HVD12P
Texas Instruments
RS-485 Interface IC 3.3V RS485
309 In Stock
1
NT$290.74
10
NT$230.87
50
NT$195.74
100
NT$188.93
250
View
250
NT$188.57
500
NT$177.46
1,000
NT$172.80
2,500
NT$166.34
Buy
Min.: 1 Mult.: 1
Details
Through Hole
PDIP-8
SN65HVD12
Transceiver
1 Mb/s
1 Driver
1 Receiver
Half Duplex
3.6 V
3 V
15.5 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Tube
RS-485 Interface IC RS-485 Transceiver A 595-SN65HVD1471DGK A 595-SN65HVD1471DGK
+1 image
SN65HVD1471DGKR
Texas Instruments
1:
NT$111.49
2,736 In Stock
Mouser Part # 595-SN65HVD1471DGKR
Texas Instruments
RS-485 Interface IC RS-485 Transceiver A 595-SN65HVD1471DGK A 595-SN65HVD1471DGK
2,736 In Stock
Alternative Packaging
1
NT$111.49
10
NT$81.38
25
NT$73.85
100
NT$65.61
2,500
NT$59.51
5,000
View
250
NT$62.02
500
NT$60.95
1,000
NT$59.87
5,000
NT$58.79
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
VSSOP-8
SN65HVD1471
Transceiver
400 kb/s
1 Driver
1 Receiver
Full Duplex
3.6 V
3 V
1.1 mA
- 40 C
+ 125 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Extended Common-mode Transceiver A 595-S A 595-SN65HVD21D
SN65HVD21DR
Texas Instruments
1:
NT$153.80
5,958 In Stock
Mouser Part # 595-SN65HVD21DR
Texas Instruments
RS-485 Interface IC Extended Common-mode Transceiver A 595-S A 595-SN65HVD21D
5,958 In Stock
Alternative Packaging
1
NT$153.80
10
NT$116.51
25
NT$107.19
100
NT$96.80
250
View
2,500
NT$83.89
250
NT$92.13
500
NT$91.78
1,000
NT$86.04
2,500
NT$83.89
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD21
Transceiver
5 Mb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
4.5 V
12 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Extended Common-mode Transceiver A 595-S A 595-SN65HVD22D
SN65HVD22DR
Texas Instruments
1:
NT$148.78
2,334 In Stock
Mouser Part # 595-SN65HVD22DR
Texas Instruments
RS-485 Interface IC Extended Common-mode Transceiver A 595-S A 595-SN65HVD22D
2,334 In Stock
Alternative Packaging
1
NT$148.78
10
NT$112.57
25
NT$103.61
100
NT$93.57
2,500
NT$82.81
5,000
View
250
NT$88.91
500
NT$88.55
1,000
NT$85.68
5,000
NT$80.66
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD22
Transceiver
500 kb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
4.5 V
9 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Extended Common-mode Transceiver A 595-S A 595-SN65HVD24D
SN65HVD24DR
Texas Instruments
1:
NT$186.06
1,637 In Stock
Mouser Part # 595-SN65HVD24DR
Texas Instruments
RS-485 Interface IC Extended Common-mode Transceiver A 595-S A 595-SN65HVD24D
1,637 In Stock
Alternative Packaging
1
NT$186.06
10
NT$141.97
25
NT$130.85
100
NT$118.66
250
View
2,500
NT$103.97
250
NT$112.93
500
NT$111.14
1,000
NT$110.42
2,500
NT$103.97
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
SOIC-8
SN65HVD24
Transceiver
3 Mb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
4.5 V
14 mA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC RS-485 Full-Duplex D rivers/Receivers A A 595-SN65HVD3080EDGS
SN65HVD3080EDGSR
Texas Instruments
1:
NT$69.55
4,094 In Stock
Mouser Part # 595-SN65HVD3080EDGSR
Texas Instruments
RS-485 Interface IC RS-485 Full-Duplex D rivers/Receivers A A 595-SN65HVD3080EDGS
4,094 In Stock
Alternative Packaging
1
NT$69.55
10
NT$51.27
25
NT$46.96
100
NT$41.94
2,500
NT$36.21
5,000
View
250
NT$39.44
500
NT$38.00
5,000
NT$34.02
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
MSOP-10
SN65HVD3080E
Transceiver
200 kb/s
1 Driver
1 Receiver
Full Duplex
5.5 V
4.5 V
750 uA
- 40 C
+ 85 C
16 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Low-Power RS-485 Tra nsceiver A 595-SN65 A 595-SN65HVD3082EDGK
+1 image
SN65HVD3082EDGKR
Texas Instruments
1:
NT$45.89
4,574 In Stock
7,500 Expected 1/25/2027
Mouser Part # 595-SN65HVD3082EDGKR
Texas Instruments
RS-485 Interface IC Low-Power RS-485 Tra nsceiver A 595-SN65 A 595-SN65HVD3082EDGK
4,574 In Stock
7,500 Expected 1/25/2027
Alternative Packaging
1
NT$45.89
10
NT$33.30
25
NT$30.15
100
NT$26.67
2,500
NT$22.30
5,000
View
250
NT$25.02
500
NT$24.02
1,000
NT$23.02
5,000
NT$21.80
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
VSSOP-8
SN65HVD3082E
Transceiver
200 kb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
4.5 V
900 uA
- 40 C
+ 85 C
15 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
RS-485 Interface IC Low-Power RS-485 Tra nsceiver
+1 image
SN65HVD3082EP
Texas Instruments
1:
NT$151.65
874 In Stock
Mouser Part # 595-SN65HVD3082EP
Texas Instruments
RS-485 Interface IC Low-Power RS-485 Tra nsceiver
874 In Stock
1
NT$151.65
10
NT$114.36
50
NT$102.17
100
NT$94.64
250
View
250
NT$89.63
500
NT$88.19
1,000
NT$83.89
2,500
NT$81.74
Buy
Min.: 1 Mult.: 1
Details
Through Hole
PDIP-8
SN65HVD3082E
Transceiver
200 kb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
4.5 V
900 uA
- 40 C
+ 85 C
15 kV
RS-485 Transceivers
Tube
RS-485 Interface IC Low-power Half-dplx Transceiver A 595-SN A 595-SN65HVD3085EDGK
+1 image
SN65HVD3085EDGKR
Texas Instruments
1:
NT$43.74
8,971 In Stock
Mouser Part # 595-SN65HVD3085EDGKR
Texas Instruments
RS-485 Interface IC Low-power Half-dplx Transceiver A 595-SN A 595-SN65HVD3085EDGK
8,971 In Stock
Alternative Packaging
1
NT$43.74
100
NT$40.87
250
NT$38.00
500
NT$37.28
2,500
NT$33.27
5,000
View
1,000
NT$36.93
5,000
NT$28.43
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
SMD/SMT
VSSOP-8
SN65HVD3085E
Transceiver
1 Mb/s
1 Driver
1 Receiver
Half Duplex
5.5 V
4.5 V
900 uA
- 40 C
+ 85 C
15 kV
RS-485 Transceivers
Reel, Cut Tape, MouseReel
Taiwan