XR20M1172IL32-F Exar Corporation, XR20M1172IL32-F Datasheet - Page 15
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XR20M1172IL32-F
Manufacturer Part Number
XR20M1172IL32-F
Description
IC UART FIFO I2C/SPI 64B 32QFN
Manufacturer
Exar Corporation
Datasheet
1.XR20M1172IG28-F.pdf
(58 pages)
Specifications of XR20M1172IL32-F
Number Of Channels
2, DUART
Package / Case
32-VFQFN Exposed Pad
Features
*
Fifo's
64 Byte
Protocol
RS485
Voltage - Supply
1.62 V ~ 3.63 V
With Auto Flow Control
Yes
With Irda Encoder/decoder
Yes
With False Start Bit Detection
Yes
With Modem Control
Yes
With Cmos
Yes
Mounting Type
Surface Mount
Data Rate
16 Mbps
Supply Voltage (max)
3.6 V
Supply Voltage (min)
1.62 V
Supply Current
250 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
No. Of Channels
2
Uart Features
Tx/Rx FIFO Counters
Supply Voltage Range
1.62V To 3.63V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
QFN
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
XR20M1172IL32-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
REV. 1.0.1
The transmitter section comprises of an 8-bit Transmit Shift Register (TSR) and 64 bytes of FIFO which
includes a byte-wide Transmit Holding Register (THR). TSR shifts out every data bit with the 16X/8X/4X
internal clock. A bit time is 16 (8 if 8X or 4 if 4X) clock periods (see DLD[5:4]). The transmitter sends the start-
bit followed by the number of data bits, inserts the proper parity-bit if enabled, and adds the stop-bit(s). The
status of the FIFO and TSR are reported in the Line Status Register (LSR[6:5]).
2.7
Output Data
Required
1000000
100000
115200
153600
200000
225000
230400
250000
300000
400000
460800
500000
750000
921600
10000
19200
25000
28800
38400
50000
57600
75000
Rate
2400
4800
9600
400
Transmitter
T
ABLE
6: T
YPICAL DATA RATES WITH A
D
16x Clock
(Decimal)
IVISOR FOR
52.0833
39.0625
26.0417
13.0208
156.25
78.125
9.7656
6.6667
6.5104
3.2552
1.6276
312.5
3750
3.75
625
150
7.5
1.5
60
30
20
15
6
5
3
2
O
BTAINABLE IN
312 8/16
156 4/16
78 2/16
52 1/16
39 1/16
26 1/16
D
9 12/16
6 11/16
3 12/16
1 10/16
M1172
7 8/16
6 8/16
3 4/16
1 8/16
3750
IVISOR
625
150
60
30
20
15
13
6
5
3
2
24 MH
DLM P
V
ALUE
Z CRYSTAL OR EXTERNAL CLOCK AT
15
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO
ROGRAM
E
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(HEX)
DLL P
V
ALUE
A6
9C
4E
3C
1E
1A
71
38
96
34
27
14
ROGRAM
D
F
9
7
6
6
6
5
3
3
3
2
1
1
(HEX)
DLD P
V
ALUE
ROGRAM
C
B
C
A
16X S
0
0
8
4
0
2
0
1
1
0
1
0
0
0
8
8
0
0
4
0
0
8
(HEX)
XR20M1172
AMPLING
D
ATA
R
ATE
0.04
0.08
0.16
0.16
0.31
0.16
0.16
0.16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
E
RROR
(%)