Back to browse

XR21B1424

USB 2.0 up to 12Mbps, Quad Channel USB UART/FIFO, RS485 capability, LQFP-64

Schematic Symbol

XR21B1424RXAGNDVIOVCCVCC_REGGNDGNDVBUS_SENSE~{RESET}GNDRXC~{TEST}VIOGNDRXBRXDGPIOA5/~{RTSA}/RS485AGPIOA4/~{CTSA}GPIOA3/~{DTRA}GPIOA2/~{DSRA}GPIOA1/~{CDA}GPIOA0/~{RIA}/~{RWKA}USB_D+USB_D-USB_STAT2GPIOC9/RXTCGPIOC8/TXTCGPIOC7/RS485CGPIOC6/CLKCTXCUSB_STAT1GPIOC5/~{RTSC}/RS485CGPIOC4/~{CTSC}GPIOC3/~{DTRC}GPIOC2/~{DSRC}GPIOC1/~{CDC}GPIOC0/~{RIC}/~{RWKC}GPIOB9/RXTBGPIOB8/TXTBGPIOB7/RS485BGPIOB6/CLKBTXBGPIOB5/~{RTSB}/RS485BGPIOB4/~{CTSB}GPIOB3/~{DTRB}GPIOB2/~{DSRB}GPIOB1/~{CDB}GPIOB0/~{RIB}/~{RWKB}GPIOD9/RXTDGPIOD8/TXTDGPIOD7/RS485DGPIOD6/CLKDTXDGPIOD5/~{RTSD}/RS485DGPIOD4/~{CTSD}GPIOD3/~{DTRD}GPIOD2/~{DSRD}GPIOD1/~{CDD}GPIOD0/~{RID}/~{RWKD}GPIOA9/RXTAGPIOA8/TXTAGPIOA7/RS485AGPIOA6/CLKATXA

Pin Configuration (64 pins)

PinNameType
1RXAinput
2GPIOA5/~{RTSA}/RS485Abidirectional
3GPIOA4/~{CTSA}bidirectional
4GPIOA3/~{DTRA}bidirectional
5GPIOA2/~{DSRA}bidirectional
6GPIOA1/~{CDA}bidirectional
7GPIOA0/~{RIA}/~{RWKA}bidirectional
8GNDpower_in
9USB_D+bidirectional
10USB_D-bidirectional
11VIOpower_in
12VCCpower_in
13VCC_REGpower_in
14GNDpassive
15GNDpassive
16VBUS_SENSEinput
17~{RESET}passive
18USB_STAT2output
19GPIOC9/RXTCbidirectional
20GPIOC8/TXTCbidirectional
21GNDpassive
22GPIOC7/RS485Cbidirectional
23GPIOC6/CLKCbidirectional
24TXCoutput
25USB_STAT1output
26RXCinput
27GPIOC5/~{RTSC}/RS485Cbidirectional
28GPIOC4/~{CTSC}bidirectional
29GPIOC3/~{DTRC}bidirectional
30GPIOC2/~{DSRC}bidirectional
31GPIOC1/~{CDC}bidirectional
32~{TEST}passive
33GPIOC0/~{RIC}/~{RWKC}bidirectional
34GPIOB9/RXTBbidirectional
35GPIOB8/TXTBbidirectional
36GPIOB7/RS485Bbidirectional
37GPIOB6/CLKBbidirectional
38VIOpassive
39GNDpassive
40TXBoutput
41RXBinput
42GPIOB5/~{RTSB}/RS485Bbidirectional
43GPIOB4/~{CTSB}bidirectional
44GPIOB3/~{DTRB}bidirectional
45GPIOB2/~{DSRB}bidirectional
46GPIOB1/~{CDB}bidirectional
47GPIOB0/~{RIB}/~{RWKB}bidirectional
48GPIOD9/RXTDbidirectional
49GPIOD8/TXTDbidirectional
50GPIOD7/RS485Dbidirectional
51GPIOD6/CLKDbidirectional
52TXDoutput
53RXDinput
54GPIOD5/~{RTSD}/RS485Dbidirectional
55GPIOD4/~{CTSD}bidirectional
56GPIOD3/~{DTRD}bidirectional
57GPIOD2/~{DSRD}bidirectional
58GPIOD1/~{CDD}bidirectional
59GPIOD0/~{RID}/~{RWKD}bidirectional
60GPIOA9/RXTAbidirectional
61GPIOA8/TXTAbidirectional
62GPIOA7/RS485Abidirectional
63GPIOA6/CLKAbidirectional
64TXAoutput

Footprint

Confirmed

Package_QFP/LQFP-64_10x10mm_P0.5mm

Pad Layout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Pads (64)
NumberType
1smd
2smd
3smd
4smd
5smd
6smd
7smd
8smd
9smd
10smd
11smd
12smd
13smd
14smd
15smd
16smd
17smd
18smd
19smd
20smd
21smd
22smd
23smd
24smd
25smd
26smd
27smd
28smd
29smd
30smd
31smd
32smd
33smd
34smd
35smd
36smd
37smd
38smd
39smd
40smd
41smd
42smd
43smd
44smd
45smd
46smd
47smd
48smd
49smd
50smd
51smd
52smd
53smd
54smd
55smd
56smd
57smd
58smd
59smd
60smd
61smd
62smd
63smd
64smd

Comments

Loading comments...

Sign in to leave a comment.

SymbolDownload Library
Footprint

Details

LibraryInterface_USB
Pin Count64
FootprintLQFP-64_10x10mm_P0.5mm
Pad Count64
View Datasheet

Keywords

USBQuadUARTFIFO