T80C251TB データシートの表示（PDF） - Intel
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T80C251TB Datasheet PDF : 36 Pages
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8xC251TB/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Symbol
TLLRL
TLLRLA
TLHAX
TLHAXA
TRLDV
TRLDVA
TRHDX
TRLAZ
TRHDZ1
TRHDZ1A
TRHDZ2
TRHDZ2A
Table 11. AC Characteristics (Sheet 2 of 4)
Parameter
ALE Low to RD# or PSEN#
Low
@ 16MHz
@ 24MHz
ALE Low to RD# or PSEN#
Low
@ 16MHz
@ 24MHz
ALE High to Address Hold
@ 16MHz
@ 24MHz
ALE High to Address Hold
@ 16MHz
@ 24MHz
RD# or PSEN# Low to Valid
Data/Instruction In
@ 16MHz
@ 24MHz
RD# or PSEN# Low to Valid
Data/Instruction In
@ 16MHz
@ 24MHz
Data/Instruction Hold after
RD# or PSEN# High
@ 16MHz
@ 24MHz
RD#/PSEN# Low to
Address Float
@ 16MHz
@ 24MHz
Instruction Float after
PSEN# or RD# high
@ 16MHz
@ 24MHz
Instruction Float after
PSEN# or RD# high
@ 16MHz
@ 24MHz
Data Float after PSEN# or
RD# high
@ 16MHz
@ 24MHz
Data Float after PSEN# or
RD# high
@ 16MHz
@ 24MHz
@ Max FOSC (1)
Min
Max
10
10
20
20
98
56.4
77.5
56.7
95
53.4
75
33.4
0
0
10
10
10
10
57.5
36.7
135
93.4
182.5
120.1
FOSC Variable
Min
Max
10
20
(1+M)
2TOSC-27
(0.5+M)
2TOSC+15
(1+N)
2TOSC-30
(1+N)
2TOSC-50
0
10
10
TOSC-5
2TOSC+10
3TOSC-5
Units
ns (4)
ns (5)
ns (3,4)
ns (3,5)
ns (3,4)
ns (3,5)
ns
ns
ns (4)
ns (5)
ns (4)
ns (5)
15
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