ST16C2550CQ48 EXAR [Exar Corporation], ST16C2550CQ48 Datasheet - Page 27

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ST16C2550CQ48

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

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xr
REV. 4.4.0
AC ELECTRICAL CHARACTERISTICS
TA=0
70
S
T
T
T
T
T
P
OSC
T
YMBOL
CLK
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WDO
MOD
T
RDV
SSR
F
WRI
SRT
WR
RSI
RRI
SSI
INT
WT
AS
AH
CS
RD
DY
DD
DS
DH
RR
-
SI
O
LOAD WHERE APPLICABLE
TO
70
Crystal Frequency
Clock Pulse Duration
External Clock Frequency
Address Setup Time
Address Hold Time
Chip Select Width
IOR# Strobe Width
Read or Write Cycle Delay
Data Access Time
Data Disable Time
IOW# Strobe Width
Data Setup Time
Data Hold Time
Delay From IOW# To Output
Delay To Set Interrupt From
MODEM Input
Delay To Reset Interrupt From IOR#
Delay From Stop To Set Interrupt
Delay From IOR# To Reset Interrupt
Delay From Start To Interrupt
Delay From Initial INT Reset To
Transmit Start
Delay From IOW# To Reset Inter-
rupt
Delay From Stop To Set RXRDY#
Delay From IOR# To Reset
RXRDY#
Delay From IOW# To Set TXRDY#
Delay From Center of Start To
Reset TXRDY#
O
C (-40
O
TO
P
ARAMETER
+85
O
C
FOR INDUSTRIAL GRADE PACKAGE
M
70*
70*
70*
17
10
40
20
5
0
5
8
IN
L
IMITS
3.3
27
M
20
30
35
25
50
40
40
45
45
24
45
45
45
1
1
8
AX
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
), V
M
40
40
40
25
15
8
0
5
0
5
8
IN
CC
L
5.0
IMITS
= 3.3V
M
24
64
25
15
40
35
35
40
40
24
40
40
40
1
1
8
AX
OR
U
MHz
Bclk
Bclk
Bclk
Bclk
5.0V (±10%)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NIT
3.3V +10%/-5% and
* 55ns if VCC =
(See Figure 12)
TA = 0 to 70
C
OMMENTS
ST16C2550
o
C

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