DSPB56366AG120 Freescale Semiconductor, DSPB56366AG120 Datasheet - Page 42

• Manufacturer Part Number: DSPB56366AG120
• Description: IC DSP 24BIT AUD 120MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: Symphony™r
• Type: Audio Processorr

Specifications of DSPB56366AG120

• Interface: Host Interface, I²C, SAI, SPI
• Clock Rate: 120MHz
• Non-volatile Memory: ROM (240 kB)
• On-chip Ram: 69kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: -40°C ~ 110°C
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.10.2
The selection guides provided in
Final selection should be based on the timing provided in the following tables. As an example, the selection
guide suggests that 4 wait states must be used for 100 MHz operation when using Page Mode DRAM.
However, by using the information in the appropriate table, a designer may choose to evaluate whether
fewer wait states might be used by determining which timing prevents operation at 100 MHz, running the
chip at a slightly lower frequency (e.g., 95 MHz), using faster DRAM (if it becomes available), and control
factors such as capacitive and resistive load to improve overall system performance.
3-16
DRAM Type
DRAM Timing
(tRAC ns)
100
80
70
60
50
Figure 3-11 DRAM Page Mode Wait States Selection Guide
1 Wait States
2 Wait States
40
Notes This figure should be use for primary selection. For
Figure 3-11
66
DSP56366 Technical Data, Rev. 3.1
exact and detailed timings see the following tables.
80
and
Figure 3-14
100
3 Wait States
4 Wait States
120
should be used for primary selection only.
Chip Frequency
(MHz)
Freescale Semiconductor
AA0472