RPIXP2800BB Intel, RPIXP2800BB Datasheet - Page 59

• Manufacturer Part Number: RPIXP2800BB
• Manufacturer: Intel

Specifications of RPIXP2800BB

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Operating Supply Voltage (max): 1.575/2.7/3.465V
• Operating Supply Voltage (min): 1.235/2.3/3.135V
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

Figure 23.
Hardware Design Guide
Topologies for Using x9 Versus x18 QDR SRAM Parts
When it is necessary to use more than one SRAM device to achieve a certain memory size capacity,
the SRAMs can be arranged in either a Width-Expansion configuration or a Depth-Expansion
configuration. Clamshelling — that is, locating two devices on opposite sides of the PCB — is
possible with either width-expansion or depth-expansion.
Entire DATA us
18 bits wide
Half DATA Bus
Half DATA Bus
9 bits wide
9 bits wide
On-die Termination
Receiver
IXP2800
On-die Termination
On-die Termination
Intel
50
®
Receiver
Receiver
IXP2800
IXP2800
Intel
Intel
50
50
®
®
A
B
B
READ Topology Using
Four x18 SRAM Parts
READ Topology Using
Two x9 SRAM Parts
C
Stub
Stub
Stub
Stub
IXP28XX Network Processor
Stub
Stub
Stub
Stub
Top
SRAM
Bottom
SRAM
Top
SRAM
Bottom
SRAM
QDR SRAM
Top
SRAM
SRAM
Top
SRAM
SRAM
ottom
ottom
B3950-01
3949-01
59