dsp56001a Freescale Semiconductor, Inc, dsp56001a Datasheet - Page 50

• Manufacturer Part Number: dsp56001a
• Description: 24-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

DSP56001A
Bus Strobe / Wait Timing
BUS STROBE / WAIT TIMING
V
T
2-32
J
CC
= –40 to 105˚ C; C
No.
150 First CKOUT transition to BS
151 WT Assertion to first CKOUT
152 First CKOUT transition to WT
153 WT Deassertion to first CKOUT
154 Second CKOUT transition to
155 BS Assertion to Address Valid
156 BS Assertion to WT Assertion
157 BS Assertion to WT Deassertion
158 WT Deassertion to BS
159 Minimum BS Deassertion
160 BS Deassertion to Address
= 5.0 V 10% for 27 MHz; V
Assertion
transition (setup time)
Deassertion for Minimum Timing
transition for Maximum Timing
(2 wait states)
BS Deassertion
(See Note 1)
(See Note 1 and Note 3)
Deassertion
Width for Consecutive
External Accesses
Invalid (See Note 2)
•
•
Characteristics
WS < 2
WS > 2
L
= 50 pF + 2 TTL loads
Freescale Semiconductor, Inc.
Table 2-15 Bus Strobe / Wait Timing
For More Information On This Product,
CC
DSP56001A/D, Rev. 1
= 5.0 V 5% for 33 MHz;
(WS - 1) T
Go to: www.freescale.com
T
T
T
C
Min
H
H
T
11
-2
+ T
3
3
6
3
0
C
- 6
- 8
L
27 MHz
C
2 T
WS T
2 T
T
T
Max
C
C
C
19
—
—
20
17
—
8
C
- 11
+ T
- 6
C
– 11
- 11
L
+
(WS - 1) T
T
T
T
T
H
H
C
Min
C
+ 4
2.5
2.5
12
-2
+ T
5
3
0
- 4.5
- 6.5
+ 4
L
33 MHz
C
2 T
WS T
T
T
Max
C
T
C
C
6.5
19
—
—
19
15
—
—
– 10
C
+ T
MOTOROLA
– 5
C
– 10
- 10
L
+
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns