MC68HC58 Motorola, MC68HC58 Datasheet - Page 84

• Manufacturer Part Number: MC68HC58
• Description: Data Link Controller
• Manufacturer: Motorola

A-4
MOTOROLA
NOTES:
Symbol
t
t
t
t
t
RWSU
t
t
t
t
t
t
ASSU
t
CSSU
t
CSDB
t
t
CSST
RWH
DSUI
t
WEH
t
DHO
1. Within double-byte reads and writes.
2. Between successive commands; also between consecutive “auto-finishes” of data in
3. Needed between successive status byte reads to properly update status.
CYC
WEL
ASH
CSH
DVO
DTO
R,F
DHI
DLC parallel mode.
E-clock cycle time
E-clock pulse width low
E-clock pulse width high
E-clock rise and fall time
Address select setup time
Address select hold time
Chip-select setup time
Chip-select hold time
Chip-select double
Chip-select status time
R/W setup time
R/W hold time
Data in setup time
Data in hold time
Data out valid time
Data out hold time
Data out three-state time
Table A-4 Parallel Interface Parameters
Description
ELECTRICAL CHARACTERISTICS
1
2, 3
D0–D7
D0–D7
D0–D7
D0–D7
D0–D7
R/W
R/W
Pin
EC
EC
EC
EC
CS
CS
CS
CS
A0
A0
Min
238
105
100
20
20
25
20
45
15
—
—
0
5
5
0
3
5
Max
20
60
75
40
—
—
—
—
—
—
—
—
—
—
—
—
—
Units
TECHNICAL DATA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
MC68HC58