dsp56001a Freescale Semiconductor, Inc, dsp56001a Datasheet - Page 22

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

DSP56001A
AC Electrical Characteristics
AC ELECTRICAL CHARACTERISTICS
The timing waveforms in the AC Electrical Characteristics are tested with a V
0.5 V and a V
pins are tested using the input levels set forth in the DC electrical characteristics. AC timing
specifications that are referenced to a device input signal are measured in production with
respect to the 50% point of the respective input signal’s transition. DSP56001A output levels are
measured with the production test machine V
respectively.
INTERNAL CLOCKS
For each occurrence of T
2-4
Note:
Internal Operation Frequency
Internal Clock High Period
Internal Clock Low Period
Internal Clock Cycle Time
Instruction Cycle Time
Signal
Input
The midpoint is V
IH
minimum of 2.4 V for all pins, except EXTAL,
Characteristics
Fall Time
H
Midpoint1
, T
Figure 2-1 Signal Measurement Reference
IL
L
+ (V
Freescale Semiconductor, Inc.
V
, T
IH
For More Information On This Product,
C
IH
or I
– V
Table 2-6 Internal Clocks
DSP56001A/D, Rev. 1
CYC
IL
)/2.
Go to: www.freescale.com
, substitute with the numbers in Table 2-6.
Low
V
OL
IL
and V
Pulse Width
OH
Symbol
reference levels set at 0.8 V and 2.0 V,
I
T
CYC
T
T
RESET
f
H
C
L
Rise Time
High
, MODA, and MODB. These
Expression
IL
2
maximum of
ET
ET
ET
90%
MOTOROLA
T
50%
H
L
C
10%
C
AA0179