Siemens EF 88H Series Manual do Utilizador descarregar pdf (Página 132)

Device Specification

Semiconductor Group 7-70

AC Characteristics (cont’d)

System Clock Timing

Parameter Symbol Limit values Unit

18 MHz clock

Variable clock

1/t

CLCL

= 3.5 MHz to 18 MHz

min. max. min. max.

System Clock Timing

ALE to CLKOUT t

LLSH

349 –7 t

CLCL

– 40 – ns

CLKOUT high time t

SHSL

71 – 2 t

CLCL

– 40 – ns

CLKOUT low time t

SLSH

516 – 10 t

CLCL

– 40 – ns

CLKOUT low to ALE

high

t

SLLH

16 96 t

CLCL

– 40 t

CLCL

+40 ns

1 2 ... 127 128 129 130 131 132 133 134 135 136 137

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