XR16M890 Datasheet, PDF (2/2 Pages) Exar Corporation – Single-Channel UARTs with Selectable Bus Interfaces

8-bit (Intel/Motorola/VLIO) UART with 128-Byte FIFO and Integrated Level Shifters
XR16M890
Single-Channel UARTs with Selectable Bus Interfaces
Simplify Mixed Voltage Designs for Next Generation Systems
BLOCK DIAGRAM
VCC_BUS
A2:A0
D7:D0
(AD7:AD0)
CS#
LLA #
IOR#
IOW# (R/W#)
INT (IRQ#)
RESET
(RESET#)
16/68#
VLIO_EN
EN485#
ENIR#
XTAL1
XTAL2
SLEEP/PWRDN
1.62V-
3.63V
I/O
Buffers
Intel/
Motorola /
VLIO
Bus
Interface
VCC_CORE
128-Byte
UART ^{TX FIFO}
TX
Regs
128-Byte
RX FIFO
RX
Flow Control
Fractional
BRG
GPIOs
Crystal Oscillator/
Buffer
VCC_UART
1.62V-
3.63V
I/O
Buffers
1.62V-
3.63V
I/O
Buffers
TX
RX
RTS#
CTS#
GPIO[3:0]
VCC_GPIO
GPIO[15:4]
TYPICAL APPLICATIONS
• Personal Digital Assistants (PDAs)
• Cellular Phones/Data Devices
• Battery-Operated Devices
ORDERING INFORMATION
Part Number
XR16M890IL32-F
XR16M890IL40-F
XR16M890IM48-F
Package
QFN-32
QFN-40
TQFP-48
• Global Positioning System (GPS)
• Bluetooth
Number of GPIOs
4
8
16
Operating Temperature Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
www.exar.com
EXAR CORPORATION
48720 Kato Road
Fremont, CA 94538
U.S.A.
©2010 EX AR CORPORATION
T. +1.510.668.7000
F. +1.510.668.7001
FLY1110 _ XR16 M 89 0