xr20m1170 Exar Corporation, xr20m1170 Datasheet - Page 2

• Manufacturer Part Number: xr20m1170
• Description: I2c/spi Uart With 64-byte Fifo
• Manufacturer: Exar Corporation

XR20M1170
I2C/SPI UART WITH 64-BYTE FIFO
F
IGURE
GPIO6/CD#
GPIO7/RI#
G PIO 6/C D#
G PIO 7/R I#
A0/CS#
2. P
A0/C S#
CTS#
A1/SI
VCC
C TS#
A1/SI
SO
VC C
IN
A0/CS#
CTS#
O
A1/SI
VCC
22
23
24
25
26
27
28
UT
19
20
21
22
23
24
21 20 19 18 17 16 15
1
18 17 16 15 14 13
A
1
13
14
15
16
SSIGNMENT
2
12 11 10 9
28-Pin QFN
24-Pin Q FN
2
1 2 3 4
3
16-Pin
QFN
3
4
4
5
5
6
8
7 GND
6
5
12
11
10
6
SDA
XTAL2
XTAL1
7
9
8
7
14
13
12
11
10
9
8
S DA
G N D
G PIO 3
X TAL2
X TAL1
G PIO 2
SCL
SDA
GND
GPIO3
XTAL2
XTAL1
NC
2
I2C/SPI#
I2C/SPI#
A0/CS#
A0/CS#
XTAL1
XTAL2
GPIO0
GPIO1
GPIO2
XTAL1
XTAL2
A1/SI
A1/SI
VCC
SO
RX
TX
SO
RX
TX
1
2
3
4
5
6
7
8
10
12
11
1
2
3
4
5
6
7
8
9
TSSOP
16-Pin
TSSOP
24-Pin
11
10
16 VCC
15
14
13
12
9
19
18
17
16
15
14
13
CTS#
24
23
22
21
20
RESET#
RTS#
IRQ#
SCL
SDA
GND
GPIO7/RI#
GPIO6/CD#
CTS#
RESET#
GPIO4/DSR#
GPIO5/DTR#
RTS#
IRQ#
SCL
SDA
GND
GPIO3
REV. 1.0.0