MC68HC912D60A MOTOROLA [Motorola, Inc], MC68HC912D60A Datasheet - Page 420

• Manufacturer Part Number: MC68HC912D60A
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Electrical Specifications
Technical Data
420
Num
1. All timings are calculated for normal port drives.
2. Crystal input is required to be within 45% to 55% duty.
3. Reduced drive must be off to meet these timings.
4. Unequalled loading of pins will affect relative timing numbers.
5. This characteristic is affected by clock stretch.
6. Without TAG enabled.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1
2
3
5
7
8
9
Add N × t
Frequency of operation (ECLK frequency)
Cycle timet
Pulse width, E lowPW
Pulse width, E high
Address delay timet
Address valid time to ECLK riset
Multiplexed address hold timet
Address Hold to Data Valid
Data Hold to High Zt
Read data setup time
Read data hold time
Write data delay time
Write data hold time
Write data setup time
Read/write delay timet
Read/write valid time to E riset
Read/write hold time
Low strobe
Low strobe
Low strobe
Address access time
Access time from E rise
DBE delay from ECLK rise
DBE valid timet
DBE hold time from ECLK fall
cyc
where N = 0, 1, 2, or 3, depending on the number of clock stretches.
(6)
(6)
(6)
cyc
delay timet
valid time to E riset
hold time
= 1/f
DBE
V
DD
Table 20-14. Multiplexed Expansion Bus Timing
o
Characteristic
(5)
AD
= PW
= 5.0 Vdc ± 10%, V
DHZ
(5)
(5)
PW
EL
RWD
= t
t
t
ACCA
(5)
Freescale Semiconductor, Inc.
DSW
= t
= t
LSD
EH
EH
cyc
t
For More Information On This Product,
ACCE
(5)
= t
cyc
AD
= t
/4 + delay
− t
= t
t
= PW
= t
DBED
cyc
/2 + delay
MAH
− 20
RWV
cyc
DBED
cyc
cyc
= PW
AV
/4 + delay
LSV
/2 + delay
/4 + delay
(1), (2), (3), (4)
EH
− t
= t
= t
= PW
= PW
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= PW
Electrical Specifications
cyc
AD
SS
cyc
− t
EH
/4 + delay
DDW
/4 + delay
= 0 Vdc, T
− t
EL
EL
− t
EL
DSR
DSR
− t
− t
− t
AD
RWD
LSD
A
= T
L
to T
H
, unless otherwise noted
Delay Symbol
−18
−4
−2
27
18
18
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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8
MC68HC912D60A — Rev 3.0
PW
PW
t
t
t
t
t
t
t
t
t
t
t
t
t
AHDS
t
t
ACCA
ACCE
DBED
t
DBEH
t
t
t
DHW
MAH
DDW
DSW
RWD
RWV
RWH
t
t
DHZ
DSR
DHR
DBE
t
LSD
LSH
LSV
cyc
AD
f
AV
o
EH
EL
0.004 8.0
0.125 250
Min
58
60
13
20
25
20
13
20
20
21
8
0
9
9
0
8 MHz
Max
MOTOROLA
50
30
47
49
49
50
35
39
10
MHz
Unit
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns