參數(shù)資料
型號: XR16L2450
廠商: Exar Corporation
英文描述: 2.25V TO 5.5V DUART
中文描述: 2.25V至5.5V的杜阿爾特
文件頁數(shù): 5/30頁
文件大?。?/td> 511K
代理商: XR16L2450
xr
REV. 1.1.0
XR16L2450
2.25V TO 5.5V DUART
5
Pin type: I=Input, O=Output, IO= Input/output, OD=Output Open Drain.
OP2B#
15
9
O
Output Port 2 Channel B - The output state is defined by the user and
through the software setting of MCR[3]. INTB is set to the active mode
and OP2B# output to a logic 0 when MCR[3] is set to a logic 1. INTB is
set to the three state mode and OP2B# to a logic 1 when MCR[3] is set
to a logic 0. This output should not be used as a general output else it
will disturb the INTB output functionality. If it is not used, leave it uncon-
nected.
ANCILLARY SIGNALS
XTAL1
18
13
I
Crystal or external clock input.
XTAL2
19
14
O
Crystal or buffered clock output.
RESET
39
36
I
Reset (active high) - A longer than 40 ns logic 1 pulse on this pin will
reset the internal registers and all outputs. The UART transmitter output
will be held at logic 1, the receiver input will be ignored and outputs are
reset during reset period.
VCC
44
42
Pwr
2.25V to 5.5V power supply. All inputs are 5V tolerant.
GND
22
17
Pwr
Power supply common, ground.
N.C.
1, 12, 23,
34
6, 12, 18,
24, 25, 31,
37, 43
-
No Connection. These pins are not connected internally.
PIN DESCRIPTIONS
N
AME
44-PLCC
P
IN
#
48-TQFP
P
IN
#
T
YPE
D
ESCRIPTION
相關(guān)PDF資料
PDF描述
XR16L2450IJ 97-3108A20-29S-KIT
XR16L2450IM 2.25V TO 5.5V DUART
XR16L2550IJ LOW VOLTAGE DUART WITH 16-BYTE FIFO
XR16L2550IL LOW VOLTAGE DUART WITH 16-BYTE FIFO
XR16L2550IM LOW VOLTAGE DUART WITH 16-BYTE FIFO
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