DS80C310-MCL DALLAS [Dallas Semiconductor], DS80C310-MCL Datasheet - Page 13

• Manufacturer Part Number: DS80C310-MCL
• Description: High-Speed Micro
• Manufacturer: DALLAS [Dallas Semiconductor]

AC ELECTRICAL CHARACTERISTICS
NOTES FOR AC ELECTRICAL CHARACTERISTICS
All parameters apply to both commercial and ind ustrial temperature range operation unless otherwise
noted. All signals characterized with load capacitance of 80 pF except Port 0, ALE, PSEN , and WR with
100 pF. Interfacing to memory devices with float times (turn off times) over 25 ns may cause contention.
This will not damage the parts, but will cause an increase in operating current. Specifications assume a
50% duty cycle for the oscillator. Port 2 and ALE timing will change in relation to duty cycle variation.
PARAMETER
Oscillator Freq. (Ext. Osc.)
ALe Pulse Width
Port 0 Address Valid to ALE Low
Address Hold after ALE Low
ALE Low to Valid Instruction In
ALE Low to PSEN Low
Input Instruction Hold after PSEN
Input Instruction Float after PSEN
Port 0 Address to Valid Instr. In
Port 2 Address to Valid Instr. In
PSEN Pulse Width
PSEN Low to Valid Instr. In
PSEN Low to Address Float
(Ext. Crystal)
SYMBOL MIN
1/t
t
t
t
t
LLAX1
t
t
t
t
t
t
t
t
AVIV2
LHLL
AVLL
LLPL
PLPH
PLAZ
LLIV
PXIX
PXIZ
AVIV
PLIV
CLCL
13 of 23
40
10
10
10
55
0
1
0
25 MHz
MAX
33
33
56
41
26
71
81
0
1.5t
0.5t
0.5t
0.5t
VARIABLE CLOCK
2t
MIN
CLCL
CLCL
CLCL
CLCL
CLCL
0
1
0
-5
-5
-5
-5
-5
2.5t
3.5t
2t
3t
t
MAX
CLCL
CLCL
CLCL
CLCL
CLCL
33
33
0
-20
-5
-20
-20
-25
NOTES
DS80C310
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns