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80296SA View Datasheet(PDF) - Intel

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80296SA Datasheet PDF : 40 Pages
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80296SA COMMERCIAL CHMOS 16-BIT MICROCONTROLLER
6.2.5 HOLD#, HLDA# TIMINGS
Table 12. HOLD#, HLDA# Timings
Symbol
Parameter
Min
THVCH
HOLD# Setup time (to guarantee recognition at next clock)
30
TCLHAL
CLKOUT Low to HLDA# Low
–15
TCLBRL
CLKOUT Low to BREQ# Low
–15
THALAZ
HLDA# Low to Address Float
THALBZ
HLDA# Low to BHE#, INST, RD#, WR# Weakly Driven
TCLHAH
CLKOUT Low to HLDA# High
–25
TCLBRH
CLKOUT Low to BREQ# High
–25
THAHAX
HLDA# High to Address No Longer Float
–20
THAHBV
HLDA# High to BHE#, INST, RD#, WR# Valid
–20
Max
15
15
33
25
15
25
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
CLKOUT
HOLD#
HLDA#
BREQ#
A19:0, AD15:0
CSx#, BHE#,
INST, RD#, WR#
WRL#, WRH#
ALE
THVCH
TCLHAL
TCLBRL
THALAZ
THALBZ
THVCH
Hold Latency
TCLHAH
TCLBRH
THAHAX
THAHBV
Weakly held inactive
TCLLH
Start of strongly driven ALE
A2460-03
Figure 11. HOLD#, HLDA# Timing Diagram
PRELIMINARY
29
 

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