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Nonmultiplexed bus, Onmultiplexed, 2 nonmultiplexed bus – Rainbow Electronics DS26503 User Manual

Page 114

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DS26503 T1/E1/J1 BITS Element

114 of 123

19.2 Nonmultiplexed Bus

Table 19-2. AC Characteristics, Non-Mux Parallel Port

(V

DD

= 3.3V

±5%, T

A

= 0°C to +70°C for DS26503L; V

DD

= 3.3V

±5%, T

A

= -40°C to +85°C for

DS26503LN.)

PARAMETER SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Setup Time for A0 to A7, Valid to
CS Active

t1 0 ns

Setup Time for

CS Active to

Either

RD, WR, or DS Active

t2 0 ns

Delay Time from Either

RD or

DS Active to Data Valid

t3

75

ns

Hold Time from Either

RD, WR,

or

DS Inactive to CS Inactive

t4 0 ns

Hold Time from

CS Inactive to

Data Bus Tri-State

t5 5

20

ns

Wait Time from Either

WR or DS

Activate to Latch Data

t6 75 ns

Data Setup Time to Either

WR or

DS Inactive

t7 10 ns

Data Hold Time from Either

WR

or

DS Inactive

t8 10 ns

Address Hold from Either

WR or

DS Inactive

t9 10 ns