ST16C2550CQ48 EXAR [Exar Corporation], ST16C2550CQ48 Datasheet - Page 11

• Manufacturer Part Number: ST16C2550CQ48
• Description: 2.97V TO 5.5V DUART WITH 16-BYTE FIFO
• Manufacturer: EXAR [Exar Corporation]

xr
REV. 4.4.0
To obtain maximum data rate, it is necessary to use full rail swing on the clock input. See external clock
operating frequency over power supply voltage chart in
F
Requires a 2K ohms pull-up resistor on XTAL2 pin to increase operating speed
IGURE
F
IGURE
8 0
7 0
6 0
5 0
4 0
3 0
6. O
O p e ra tin g fre q u e n cy fo r S T 1 6 C 2 5 5 0
vcc
gnd
w ith e x te rn a l clo ck a n d a 2 K o h m s
p u ll-u p re sisto r o n X T A L 2 p in .
PERATING
5. E
External Clock
3 .0
XTERNAL
3 .5 4 .0
R1
2K
F
S u p p y V o lta g e
REQUENCY VERSUS
VCC
11
C
Figure
LOCK
4 .5
XTAL1
XTAL2
6.
C
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
ONNECTION FOR
5 .0
5 .5
P
OWER
-4 0
2 5
8 5
o
o
o
C
C
C
S
UPPLY
E
XTENDED
C
HART
D
ATA
.
ST16C2550
R
ATE