XR88C92_05 Datasheet, PDF (25/32 Pages) Exar Corporation – DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER

XR88C92/192
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
TCSL
TCSH
T9s
T9h
T10d
T11d
TR
N
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
Limits
3.3
Min Max
17
8
0
0
0
0
51
20
1
30
100
100
0
0
110
100
2
1
2¹⁶-1
Limits
Units
5.0
Min Max
17
ns
24 MHz
0
ns
0
ns
0
ns
0
ns
32 ns
10
ns
1
ns
20 ns
70
ns
70
ns
0
ns
0
ns
110 ns
100 ns
2
clks
1
2¹⁶-1 clks
Conditions
Rev. 1.33
25