XR68C192 Datasheet, PDF (24/32 Pages) Exar Corporation – DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER

XR68C92/192
AC ELECTRICAL CHARACTERISTICS
T_A=0° - 70°C (-40° - +85°C for Industrial grade packages), Vcc=3.3 - 5.0 V ± 10% unless otherwise specified.
Symbol
Parameter
T1w,T2w
T3w
TAS
TAH
TRWS
TRWH
TDD
TDS
TDH
TDF
TAKL
TAKH
TAKT
TCSL
TCSH
T9s
T9h
T10d
T11d
TR
N
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
Limits
3.3
Min Max
17
8
0
0
0
0
51
20
1
30
70
45
70
100
100
0
0
110
100
2
1
2¹⁶-1
Limits
5.0
Min Max
17
24
0
ns
0
0
0
32
10
1
20
42
27
43
70
70
0
0
110
100
2
1
2¹⁶-1
Units
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
clks
clks
Conditions
Rev. P1.10
24