DSP56303AG100 Freescale Semiconductor, DSP56303AG100 Datasheet - Page 35

• Manufacturer Part Number: DSP56303AG100
• Description: IC DSP 24BIT 100MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: DSP563xxr
• Type: Fixed Pointr

Specifications of DSP56303AG100

• Interface: Host Interface, SSI, SCI
• Clock Rate: 100MHz
• Non-volatile Memory: ROM (576 B)
• On-chip Ram: 24kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: -40°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Package: 144LQFP
• Maximum Speed: 100 MHz
• Ram Size: 24 KB
• Device Million Instructions Per Second: 100 MIPS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.5.5.2 DRAM Timing
The selection guides in Figure 2-14 and Figure 2-17 are for primary selection only. Final selection should be based
on the timing in the following tables. For example, the selection guide suggests that four wait states must be used
for 100 MHz operation with Page Mode DRAM. However, consulting the appropriate table, a designer can evaluate
whether fewer wait states might suffice by determining which timing prevents operation at 100 MHz, running the
chip at a slightly lower frequency (for example, 95 MHz), using faster DRAM (if it becomes available), and
manipulating control factors such as capacitive and resistive load to improve overall system performance.
Freescale Semiconductor
DRAM type
(tRAC ns)
100
80
70
60
Figure 2-14.
50
1 Wait states
2 Wait states
40
DSP56303 Technical Data, Rev. 11
DRAM Page Mode Wait State Selection Guide
Note:
66
This figure should be used for primary selection. For exact
and detailed timings, see the following tables.
80
100
3 Wait states
4 Wait states
120
Chip frequency
(MHz)
AC Electrical Characteristics
2-15