參數(shù)資料
型號: XRT16C854
廠商: Exar Corporation
英文描述: 2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
中文描述: 2.97V至5.5V四路UART的128字節(jié)FIFO
文件頁數(shù): 43/54頁
文件大?。?/td> 485K
代理商: XRT16C854
xr
REV. 3.0.1
XR16C854/854D
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
43
TSI
Delay From Stop To Interrupt
45
40
ns
TINT
Delay From Initial INT Reset To Transmit Start
8
24
8
24
Bclk
TWRI
Delay From IOW# To Reset Interrupt
45
40
ns
TSSR
Delay From Stop To Set RXRDY#
1
1
Bclk
TRR
Delay From IOR# To Reset RXRDY#
45
40
ns
TWT
Delay From IOW# To Set TXRDY#
45
40
ns
TSRT
Delay From Center of Start To Reset TXRDY#
8
8
Bclk
TRST
Reset Pulse Width
40
40
ns
N
Baud Rate Divisor
1
2
16
-1
1
2
16
-1
-
Bclk
Baud Clock
16X of data rate
bps
F
IGURE
14. C
LOCK
T
IMING
F
IGURE
15. M
ODEM
I
NPUT
/O
UTPUT
T
IMING
F
OR
C
HANNELS
A-D
AC ELECTRICAL CHARACTERISTICS
TA=0
O
TO
70
O
C (-40
O
TO
+85
O
C
FOR
INDUSTRIAL
GRADE
PACKAGE
), V
CC
IS
2.97
TO
5.5V
S
YMBOL
P
ARAMETER
L
IMITS
3.3
M
IN
M
AX
L
IMITS
5.0
M
IN
M
AX
U
NIT
C
ONDITIONS
OSC
CLK
CLK
EXTERNAL
CLOCK
IO W #
IO W
R T S #
D T R #
C D #
C T S #
D S R #
IN T
IO R #
R I#
T
W D O
T
M O D
T
M O D
T
R S I
T
M O D
A c tive
A c tive
C h a n g e o f s ta te
C h a n g e o f s ta te
A c tive
A c tive
A c tive
C h a n g e o f s ta te
C h a n g e o f s ta te
C h a n g e o f s ta te
A c tive
A c tive
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