xr88c92 Exar Corporation, xr88c92 Datasheet - Page 25

• Manufacturer Part Number: xr88c92
• Description: Xr88c92 -dual Uart With 8 Bytes Transmit And Receive Fifo
• Manufacturer: Exar Corporation

T
A
AC ELECTRICAL CHARACTERISTICS
Symbol
=0° - 70°C (-40° - +85°C for Industrial grade packages), Vcc=3.3 - 5.0 V ± 10% unless otherwise specified.
Rev. 1.33
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
N
DD
DH
DF
R
1w,
3w
AS
AH
RWS
RWH
DS
CSL
CSH
9s
9h
10d
11d
T
2w
Clock pulse duration
Oscillator/Clock frequency
Address Valid to -CS Low
-CS High to Address Invalid
-IOR/-IOW Setup Time to -CS Low
-IOR/-IOW Hold Time from -CS High
-CS Low to Data Valid (Read)
Data Valid to -CS High (Write)
-CS High to Data Invalid (Write)
-CS High to Data Hi-Z (Read)
-CS Low Pulse Width
-CS High Pulse Width
Port input setup time
Port input hold time
Delay from -IOW to output
Delay to reset interrupt from -IOR/-IOW
Reset pulse width
Baud rate divisor
Parameter
25
Min
100
100
17
20
0
0
0
0
1
0
0
2
1
Limits
3.3
Max
2
110
100
51
30
16
8
-1
Min
17
10
70
70
0
0
0
0
1
0
0
2
1
Limits
XR88C92/192
5.0
Max
2
110
100
24
32
20
16
-1
Units
MHz
clks
clks
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Conditions