RPIXP2850BB Intel, RPIXP2850BB Datasheet - Page 57

• Manufacturer Part Number: RPIXP2850BB
• Manufacturer: Intel

Specifications of RPIXP2850BB

• 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

4.3
Figure 22.
4.4
Hardware Design Guide
QDR SRAM Connections
Figure 22
QDR SRAM Connections
QDR SRAM Interface
The IXP28XX network processor has four independent SRAM subsystems, each of which supports
pipelined QDRII-synchronous static RAM (QDRII SRAM). There may also be – in addition to or
as a replacement for the pipelined QDR SRAM – a coprocessor with QDR signaling capability.
1.5 V
0 Ohms
50 Ohms
50 Ohms
illustrates the QDR SRAM connections.
C/C#0
Q[17:0]
ZQ[0]
ZQ[1]
C/C#1 K/K#1 CIN/CIN#1
IXP2800
Channe
K/K#0
Intel
QDR
Used
®
Not
CIN/CIN#0
l
W#0/R#0
SA[21:0]
BW[1:0]
W#/R#1
D[17:0]
D[17:0]
SA[21:0]
BW#[1:0]
NW#[1:0]
W#/R#
NW#[1:0]
D[17:0]
SA[21:0]
BW#[1:0]
W#/R#
C/C# K/K# CQ/CQ#
C/C# K/K# CQ/CQ#
IXP28XX Network Processor
Not Used
Clamshelled
Clamshelled
QDR-II
QDR-II
SRAM
SRAM
1 of 2
2 of 2
Q[17:0]
Q[17:0]
ZQ
ZQ
QDR SRAM
250 Ohms
250 Ohms
B3414-01
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