MC68306 Motorola, MC68306 Datasheet - Page 173

• Manufacturer Part Number: MC68306
• Description: Integrated EC000 Processor
• Manufacturer: Motorola

LDS / UDS
FC2–FC0,
(NOTE 1)
CLKOUT
UW, LW
A23–A0
8.8 AC ELECTRICAL SPECIFICATIONS—CHIP SELECTS AND
INTERRUPT ACKNOWLEDGE
Num
V = Boolean OR
MOTOROLA
61A
70A
IACKx
61
62
63
64
65
66
67
68
69
70
DATA
R/W
OE
CS
AS
FC Valid to CS≈ Asserted (Read or Write)
Data-Out Valid to CS≈ Negated (Write)
Address Valid to CS≈ Asserted (Read or Write)
AS V DS to CS≈
AS V R/ W to CS≈
CS≈ Width Asserted
CS≈ Negated to FC, Addess Invalid
CS≈ Negated to R/ W Invalid
CS≈ Negated to Data-Out Invalid (Write)
CS≈ Negated to Data-In High Impedance
CLKOUT High to IACK≈ Asserted
LDS High to IACK≈ Negated
Figure 8-5. Chip Select and Interrupt Acknowledge Timing Diagram
S0
NOTE: THE WRITE CYCLE ILLUSTRATED IS PART OF A TEST AND SET INSTRUCTION.
S1
61
61A
S2
READ
S3
9A
62
Characteristic
S4
MC68306 USER'S MANUAL
64
S5
70
(The electrical specifications in this document are preliminary.)
S6
IN
65
62
S12
12A
69
70A
S13
61
61A
S14
S15
WRITE
Min
120
16.67 MHz
15
45
15
15
90
15
—
9A
0
0
0
0
63
S16
Max
90
30
10
—
—
—
—
—
—
—
5
5
S17
64
OUT
67
Unit
S18
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(NOTE 1)
12A
63
8- 9
65
66
68