XR16L580_07 EXAR [Exar Corporation], XR16L580_07 Datasheet - Page 6
![no-image](/images/no-image-200.jpg)
XR16L580_07
Manufacturer Part Number
XR16L580_07
Description
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
Manufacturer
EXAR [Exar Corporation]
Datasheet
1.XR16L580_07.pdf
(52 pages)
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XR16L580
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
N
Pin Descriptions
(RESET#)
OTE
RESET
N
GND
GND
VCC
NC
AME
: Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain.
Center
QFN
P
Pad
24-
18
19
12
IN
-
#
Center
14, 15 15, 16 5, 6, 9,
QFN
P
Pad
28-
21
23
12
IN
#
Center
QFN
P
Pad
32-
23
28
13
IN
#
10, 12,
17, 20-
25, 29,
31, 34,
36, 37,
TQFP
PIN#
N/A
48-
35
42
18
48
T
Pwr 2.25V to 5.5V power supply. All input pins, except XTAL1, are 5V
Pwr Power supply common, ground.
Pwr The center pad on the backside of the QFN package is metallic and
YPE
I
-
When 16/68# pin is at logic 1 for Intel bus interface, this input
becomes RESET (active high). When 16/68# pin is at logic 0 for
Motorola bus interface, this input becomes RESET# (active low).
A 40 ns minimum active pulse on this pin will reset the internal reg-
isters and all outputs of the UART. The UART transmitter output will
be held at logic 1, the receiver input will be ignored and outputs are
reset during reset period (see UART Reset Conditions).
tolerant.
should be connected to GND on the PCB. The thermal pad size on
the PCB should be the approximate size of this center pad and
should be solder mask defined. The solder mask opening should be
at least 0.0025" inwards from the edge of the PCB thermal pad.
No Connects. Note that in Motorola mode, the IOR# pin becomes
an NC pin.
6
D
ESCRIPTION
REV. 1.4.1
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