N80C151SA 查看數據表（PDF） - Intel
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N80C151SA Datasheet PDF : 33 Pages
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8XC151SA SB HIGH-PERFORMANCE CHMOS MICROCONTROLLER
AC Characteristics
Table 8 lists AC timing parameters for the
8XC151SA SB with no wait states External wait
states can be added by extending PSEN RD
WR and or by extending ALE In the table Notes
3 and 5 mark parameters affected by an ALE wait
state and Notes 4 and 5 mark parameters affected
by a PSEN RD WR wait state
Figures 5 – 11 show the bus cycles with the timing
parameters
Table 9 AC Characteristics (Capacitive Loading e 50 pF)
Symbol
Parameter
FOSC
TOSC
TLHLL
XTAL1 Frequency
1 FOSC
12 MHz
16 MHz
ALE Pulse Width
12 MHz
16 MHz
TAVLL
Address Valid to ALE Low
12 MHz
16 MHz
TLLAX
TRLRH (2)
Address Hold after ALE Low
12 MHz
16 MHz
RD or PSEN Pulse Width
12 MHz
16 MHz
TWLWH
WR Pulse Width
12 MHz
16 MHz
TLLRL (2)
TLHAX
ALE Low to RD or PSEN Low
12 MHz
16 MHz
ALE High to Address Hold
12 MHz
16 MHz
Max FOSC (1)
Min
Max
NA
NA
NA
NA
68 3
47 5
58 3
37 5
10
10
151 6
110
151 6
110
58 3
37 5
83 3
62 5
FOSC Variable
Min
Max
0
16
83 3
62 5
(1a2M)
TOSC b 15
(1a2M)
TOSC b 25
10
2(1aN)
TOSC b 15
2(1aN)
TOSC b 15
Tosc b 25
(1a2M)
TOSC
NOTES
1 16 MHz
2 Specifications for PSEN are identical to those for RD
3 In the formula MeNumber of wait states (0 or 1) for ALE
4 In the formula NeNumber of wait states (0 1 2 or 3) for RD PSEN WR
5 ‘‘Typical’’ specifications are untested and not guaranteed
Units
MHz
ns
ns
(3)
ns
(3)
ns
ns
(4)
ns
(4)
ns
ns
(3)
16
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