XR68C192 EXAR [Exar Corporation], XR68C192 Datasheet - Page 24

• Manufacturer Part Number: XR68C192
• Description: DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER
• Manufacturer: EXAR [Exar Corporation]

XR68C92/192
AC ELECTRICAL CHARACTERISTICS
T
A
Symbol
=0° - 70°C (-40° - +85°C for Industrial grade packages), Vcc=3.3 - 5.0 V ± 10% unless otherwise specified.
Rev. P1.10
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
N
R
1w,
3w
AH
RWS
RWH
DD
DS
DH
DF
CSL
CSH
9h
10d
11d
AS
AKL
AKH
AKT
9s
T
2w
Clock pulse duration
Oscillator/Clock frequency
Address Valid to -CS Low
-CS High to Address Invalid
R/-W Setup Time to -CS Low
R/-W 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 to -DACK Low
-CS High to -DACK High
-CS High to -DACK Hi-Z
-CS Low Pulse Width
-CS High Pulse Width
Port input setup time
Port input hold time
Delay from R/-W to output
Delay to reset interrupt from R/-W
Reset pulse width
Baud rate divisor
Parameter
24
Min
100
100
17
20
0
0
0
1
0
0
2
1
0
Limits
3.3
Max
2
110
100
51
30
70
45
70
16
8
-1
Min
17
10
70
70
0
0
0
0
1
0
0
2
1
Limits
5.0
Max
2
110
100
24
ns
32
20
42
27
43
16
-1
Units
MHz
clks
clks
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Conditions