參數(shù)資料
型號: ST16C2451
廠商: Exar Corporation
英文描述: 2.97V TO 5.5V DUART
中文描述: 2.97V至5.5V杜阿爾特
文件頁數(shù): 22/29頁
文件大?。?/td> 315K
代理商: ST16C2451
ST16C2450
2.97V TO 5.5V DUART
á
REV. 4.0.0
22
AC ELECTRICAL CHARACTERISTICS
U
NLESS
OTHERWISE
NOTED
: 0
O
TO
70
O
C (-40
O
TO
+85
O
C
FOR
INDUSTRIAL
GRADE
PACKAGE
), V
CC
IS
2.97V
TO
5.5V, 70
P
F
LOAD
WHERE
APPLICABLE
S
YMBOL
P
ARAMETER
L
IMITS
3.3
M
IN
M
AX
L
IMITS
5.0
M
IN
M
AX
U
NIT
-
Crystal Frequency
16
24
MHz
CLK
External Clock Low/High Time
25
21
ns
OSC
External Clock Frequency
20
24
MHz
T
AS
Address Setup Time
5
0
ns
T
AH
Address Hold Time
10
5
ns
T
CS
Chip Select Width
66
50
ns
T
RD
IOR# Strobe Width
35
25
ns
T
DY
Read Cycle Delay
40
30
ns
T
RDV
Data Access Time
35
25
ns
T
DD
Data Disable Time
0
25
0
15
ns
T
WR
IOW# Strobe Width
40
25
ns
T
DY
Write Cycle Delay
40
30
ns
T
DS
Data Setup Time
20
15
ns
T
DH
Data Hold Time
5
5
ns
T
WDO
Delay From IOW# To Output
50
40
ns
T
MOD
Delay To Set Interrupt From MODEM Input
40
35
ns
T
RSI
Delay To Reset Interrupt From IOR#
40
35
ns
T
SSI
Delay From Stop To Set Interrupt
1
1
Bclk
T
INT
Delay From Initial INT Reset To Transmit Start
8
24
8
24
Bclk
T
WRI
Delay From IOW# To Reset Interrupt
45
40
ns
T
RST
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
Hz
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ST16C2552CJ44 DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs
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