MC68HC711KS2MFN4 Freescale Semiconductor, MC68HC711KS2MFN4 Datasheet - Page 267

• Manufacturer Part Number: MC68HC711KS2MFN4
• Description: 32K EPROM - SLOW MODE
• Manufacturer: Freescale Semiconductor

12.11 Expansion Bus Timing
M68HC11K Family
MOTOROLA
1. V
2. Input clocks with duty cycles other than 50% affect bus performance.
3. This parameter is affected by clock stretching. Add n(t
Num
4A
4B
12
17
18
19
21
29
39
50
51
52
54
55
56
57
11
1
2
3
9
All timing measurements refer to 20% V
written to CSCSTR register or n = 1 for STRCH = 1 on KS parts.
DD
= 5.0
Frequency of operation (E clock)
Cycle time, t
Pulse width, E low, PW
Pulse width, E high
E clock
Address hold time, t
Address delay time, t
Address valid time to E rise
Read data setup time
Read data hold time
Write data delay time
Write data hold time, t
MPU address access time
Write data setup time
E valid chip-select delay time
E valid chip-select access time
Chip select hold time
Address valid chip-select delay time
Address valid chip-select access time
Address valid to chip-select time
Address valid to data three-state time
PW
Rise time
Fall time
t
t
t
t
t
t
AV
ACCA
DSW
ECSA
ACSD
ACSA
= PW
EH
10%, V
= PW
= PW
= t
= t
= 1/4 t
= 1/2 t
cyc
cyc
EL
EH
EH
SS
– t
– t
cyc
– t
cyc
Characteristic
cyc
– t
– t
f
= 0 Vdc, T
AD
f
= 1/f
– t
– t
+ 40 ns
DDW
ECSD
– 25 ns
DSR
DSR
(3)
AH
o
AD
(3)
DHW
– t
– t
– t
= 1/8 t
EL
= 1/8 t
ACSD
A
DSR
AD
= 1/2 t
= 1/8 t
= T
(3)
(3)
(1)
cyc
L
cyc
to T
(3)
DD
– 10 ns
cyc
cyc
(2)
+ 40 ns
and 70% V
H
– 20 ns
, unless otherwise noted
Electrical Characteristics
DD
cyc
, unless otherwise noted.
) to parameter value, where n = 1, 2, or 3 depending on values
Symbol
PW
PW
t
t
t
t
t
t
t
t
t
t
t
t
ACCA
ECSD
ECSA
ACSD
ACSA
AVCS
AVDZ
t
DDW
DHW
DSW
t
t
t
t
DSR
DHR
f
cyc
CH
AH
AD
AV
t
t
o
r
f
EL
EH
Min
500
230
225
128
348
185
155
285
dc
—
—
53
—
30
—
63
—
—
10
—
2.0 MHz
0
0
Max
103
165
2.0
20
20
40
40
20
—
—
—
—
—
—
—
—
—
—
—
—
—
10
Min
333
147
142
203
102
162
dc
32
65
30
42
72
10
—
—
—
—
—
—
—
3.0 MHz
0
0
Max
123
3.0
20
18
82
40
40
20
—
—
—
—
—
—
—
—
—
—
—
—
—
10
Electrical Characteristics
Expansion Bus Timing
Min
250
105
100
144
113
21
34
20
31
60
40
10
dc
—
—
—
—
—
—
—
4.0 MHz
0
0
Technical Data
Max
103
4.0
20
15
71
40
40
20
—
—
—
—
—
—
—
—
—
—
—
—
—
10
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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