80C251TA Просмотр технического описания (PDF) - Intel
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80C251TA Datasheet PDF : 34 Pages
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8xC251TA/TB/TP/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Symbol
TRHLH2
TRHLH2A
TRHLH1
TRHLH1A
TWHLH
TWHLHA
TAVDV1
TAVDV1A
TAVDV2
TAVDV3
TAVRL
TAVRLA
Table 11. AC Characteristics (Sheet 3 of 4)
Parameter
RD# or PSEN# High to ALE
High (data)
@ 16MHz
@ 24MHz
RD# or PSEN# High to ALE
High (data)
@ 16MHz
@ 24MHz
RD# or PSEN# High to ALE
High (Instruction)
@ 16MHz
@ 24MHz
RD# or PSEN# High to ALE
High (Instruction)
@ 16MHz
@ 24MHz
WR# High to ALE Low
@ 16MHz
@ 24MHz
WR# High to ALE Low
@ 16MHz
@ 24MHz
Address (mux’d) valid to
Valid Data/ Instruction In
@ 16MHz
@ 24MHz
Address (mux’d) valid to
Valid Data/ Instruction In
@ 16MHz
@ 24MHz
Address (demux’d) valid to
Valid Data/Instruction In
@ 16MHz
@ 24MHz
Address (P0)Valid to Valid
Instruction In
@ 16MHz
@ 24MHz
Address Valid to RD# or
PSEN# Low
@ 16MHz
@ 24MHz
Address Valid to RD# or
PSEN# Low
@ 16MHz
@ 24MHz
@ Max FOSC (1)
Min
Max
135
93.4
180.5
118.1
10
10
55.5
34.7
135
93.4
180.5
118.1
190
106.8
159.5
97.1
212
128.8
65
23.4
85
43.4
72.5
51.7
FOSC Variable
Min
Max
2TOSC+10
3TOSC-7
10
TOSC-7
2TOSC+10
3TOSC-7
(2+M+N)
2TOSC-60
(1.5+M+N)
2TOSC-28
(2+M+N)
2TOSC-38
(1+N)
2TOSC-60
(1+M)
2TOSC-40
(0.5+M)
2TOSC+10
Units
ns (4)
ns (5)
ns (4)
ns (5)
ns (4)
ns (5)
ns (3,4)
ns (3,4)
ns (3)
ns (3)
ns (3,4)
ns (3,5)
16
ADVANCE INFORMATION
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