XR20M1172G28-0B Datasheet, PDF (2/55 Pages) Exar Corporation – TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO

XR20M1172
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO
FIGURE 2. PIN OUT ASSIGNMENT
REV. 1.2.0
24 23 22 21 20 19 18 17
CTSA# 25
GPIO4/DSRA# 26
GPIO6/CDA# ₂₇
GPIO7/RIA# ₂₈
VCC 29
A0/CS# ³⁰
A1/SI ³¹
SEL_I2C_SPI# 32
32-pin QFN
16 CTSB#
15 RTSB#
14 GPIO3/RIB#
13 _GPIO0/DSRB#
12 GND
11 GPIO2/CDB#
10 XTAL2
9 XTAL1
12345678
VCC 1
A0/CS# 2
A1/ SI 3
I2C/SPI# 4
SO 5
SDA 6
RXB 7
RXA 8
TXA 9
TXB 10
XTAL1 11
XTAL2 12
GPIO2/CDB# 13
GND 14
28-Pin TSSOP
28 GPIO7/RIA#
27 GPIO6/CDA#
26 GPIO4/DSRA#
25 CTSA#
24 RESET#
23 GPIO1/DTRB#
22 GPIO5/DTRA#
21 RTSA#
20 IRQ#
19 SCK
18 CTSB#
17 RTSB#
16 GPIO3/RIB#
15 GPIO0/DSRB#
ORDERING INFORMATION
PART NUMBER
XR20M1172IL32-F
XR20M1172IL32TR-F
XR20M1172IG28-F
XR20M1172IG28TR-F
PACKAGE
32-pin QFN
32-pin QFN
28-Lead TSSOP
28-Lead TSSOP
NOTE: TR = Tape and Reel, F = Green / RoHS
OPERATING TEMPERATURE RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
DEVICE STATUS
Active
Active
Active
Active
2