83C196MC Ver la hoja de datos (PDF) - Intel
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83C196MC Datasheet PDF : 22 Pages
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8XC196MC
EXPLANATION OF AC SYMBOLS
Each symbol is two pairs of letters prefixed by ‘‘T’’ for time The characters in a pair indicate a signal and its
condition respectively Symbols represent the time between the two signal condition points
Conditions
H High
L Low
V Valid
X No Longer Valid
Z Floating
Signals
A Address
B BHE
C CLKOUT
D DATA
G Buswidth
H HOLD
HA HLDA
L ALE ADV
BR BREQ
R RD
W WR WRH WRL
X XTAL1
Y READY
Q Data Out
AC ELECTRICAL CHARACTERISTICS (Over Specified Operating Conditions)
Test Conditions Capacitive load on all pins e 100 pF Rise and fall times e 10 ns FOSC e 16 MHz
The system must meet the following specifications to work with the 87C196MC
Symbol
Parameter
Min
Max
FXTAL
TOSC
TAVYV
TLLYV
TYLYH
TCLYX
TLLYX
TAVGV
TLLGV
TCLGX
TAVDV
TRLDV
TCLDV
TRHDZ
TRXDX
Frequency on XTAL1
1 FXTAL
Address Valid to READY Setup
ALE Low to READY Setup
Not READY Time
READY Hold after CLKOUT Low
READY Hold after ALE Low
Address Valid to BUSWIDTH Setup
ALE Low to BUSWIDTH Setup
Buswidth Hold after CLKOUT Low
Address Valid to Input Data Valid
RD Active to Input Data Valid
CLKOUT Low to Input Data Valid
End of RD to Input Data Float
Data Hold after RD Inactive
8
16
62 5
125
2 TOSC b 75
TOSC b 70
No Upper Limit
0
TOSC b 15
0
TOSC b 30
2 TOSC b 40
2 TOSC b 75
TOSC b 60
3 TOSC b 55
TOSC b 22
TOSC b 50
TOSC
0
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
3
4
1
1
4
2
2
NOTES
1 If Max is exceeded additional wait states will occur
2 If wait states are used add 2 TOSC N where N e number of wait states
3 Testing performed at 8 MHz However the device is static by design and will typically operate below 1 Hz
4 These timings are included for compatibility with older b90 and BH products They should not be used for newer high-
speed designs
11
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