ELECTRICAL CHARACTERISTICS
M68HC16 Z SERIES
A-42
USER’S MANUAL
Table A-25 20.97-MHz ECLK Bus Timing
(V
DD
and V
DDSYN
= 5.0 Vdc
±
5%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
)
1
NOTES:
1. Refer to notes in
.
Num
Characteristic
Symbol
Min
Max
Unit
E1
ECLK Low to Address Valid
2
t
EAD
—
48
ns
E2
ECLK Low to Address Hold
t
EAH
10
—
ns
E3
ECLK Low to CS Valid (CS Delay)
t
ECSD
—
120
ns
E4
ECLK Low to CS Hold
t
ECSH
10
—
ns
E5
CS Negated Width
t
ECSN
25
—
ns
E6
Read Data Setup Time
t
EDSR
25
—
ns
E7
Read Data Hold Time
t
EDHR
5
—
ns
E8
ECLK Low to Data High Impedance
t
EDHZ
—
48
ns
E9
CS Negated to Data Hold (Read)
t
ECDH
0
—
ns
E10
CS Negated to Data High Impedance
t
ECDZ
—
1
t
cyc
E11
ECLK Low to Data Valid (Write)
t
EDDW
—
2
t
cyc
E12
ECLK Low to Data Hold (Write)
t
EDHW
10
—
ns
E13
CS Negated to Data Hold (Write)
t
ECHW
0
—
ns
E14
Address Access Time (Read)
3
t
EACC
308
—
ns
E15
Chip-Select Access Time (Read)
4
t
EACS
236
—
ns
E16
Address Setup Time
t
EAS
1/2
—
t
cyc
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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