KMSC7119VM1200 Freescale Semiconductor, KMSC7119VM1200 Datasheet - Page 54

• Manufacturer Part Number: KMSC7119VM1200
• Description: DSP 16BIT W/DDR CTRLR 400-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MSC711x StarCorer
• Type: Fixed Pointr

Specifications of KMSC7119VM1200

• Interface: Host Interface, I²C, UART
• Clock Rate: 300MHz
• Non-volatile Memory: ROM (8 kB)
• On-chip Ram: 464kB
• Voltage - I/o: 3.30V
• Voltage - Core: 1.20V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: *
• Package / Case: 400-MAPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Hardware Design Considerations
3.5
MSC7119 devices contain a memory controller that provides a glueless interface to external double data rate (DDR) SDRAM
memory modules with Class 2 Series Stub Termination Logic 2.5 V (SSTL_2). There are two termination techniques, as shown
in
Figure 37
54
Figure
•
•
Technique A
Technique B
RS = 22 Ω
RT = 24 Ω
36. Technique B is the most popular termination technique.
illustrates the power wattage for the resistors. Typical values for the resistors are as follows:
DDR Memory System Guidelines
Chip Selects
Chip Selects
Controller
Controller
Command
Command
Address
Strobes
Address
Strobes
VREF
Mask
Mask
Data
Data
Figure 36. SSTL Termination Techniques
SSTL_2
SSTL_2
SSTL_2
SSTL_2
SSTL_2
SSTL_2
MSC7119 Data Sheet, Rev. 8
RS
RS
RS
RS
V
TT
Bank
DDR
Bank
DDR
Bank
DDR
Bank
DDR
Freescale Semiconductor
Generator
Generator
V
RT
RT
V
RT
RT
TT
TT