GCIXP1250BA 837411 Intel, GCIXP1250BA 837411 Datasheet - Page 123

• Manufacturer Part Number: GCIXP1250BA 837411
• Manufacturer: Intel

Specifications of GCIXP1250BA 837411

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Datasheet
Table 48. SRAM Bus Signal Timing
Table 49. Signal Delay Deratings for T
1. Timing parameters assume that the system uses a zero delay clock buffer for SCLK before it is distributed to SRAM.
2. When used as a rdy input, HIGH_EN_L is asynchronous and can change anywhere relative to SCLK.
3. Capacitive loading effects on signal lines are shown in
4. T
5. Timings are what the tester must measure. Add 0.25 nsec to these numbers to obtain system AC parameter. This
6. Not tested. Guaranteed by design.
T
T
T
T
T
T
T
T
SCLK
SLOW_EN_L
SWE_L
MRD_L
MCE_L
SOE_L
HIGH_EN_L
LOW_EN_L
CE_L[3:0]
A[18:0]
DQ[31:0]
FWE_L
Symbol
ctl
suf
sup
on
off
val
hf
hp
additional 0.25 nsec is needed to allow for SRAM drive derating.
Vddx=3.6, Temp=0 degrees C) at 1.15 nsec with an uncertainty of 0.25 nsec. The parameter specified is guaranteed by design
in a minimally configured system environment.
6
6
val
Signal
(min) and 166 MHz and 200 MHz T
Clock to data output valid delay
Clock to control outputs valid delay
Data input setup time before NA/SACLK
for Flowthru SRAM
Data input setup time before SCLK for
Pipelined SRAM
Input signal hold time from NA/SACLK
for Flowthru SRAM
Input signal hold time from SCLK for
Pipelined SRAM
Float-to-active delay from clock
Active-to-float delay from clock
0.053
0.065
0.065
0.065
0.065
0.065
0.065
0.065
0.065
0.065
0.065
0.065
83 MHz
Maximum Derating (ns/pF)
Parameter
5
(IX Bus Speed)
—
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
1
100 MHz
,
2
ctl
val
(min) parameters are tested under 0 pF load best case conditions (Vdd=2.1,
and T
3,4
3,4
—
0.031
0.031
0.031
0.031
0.031
0.031
0.031
0.031
0.031
0.031
0.031
116 MHz
ctl
Table
1.0
1.25
2
5.5
1
1
1
---
MHz
166
49.
(IXP1250 Core
Minimum
0.025
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
Speed)
5.0
1
---
1.0
1.0
2
1
1
83 MHz
MHz
200
Intel
Minimum Derating (ns/pF)
0.5
0.5
2
3.10
1
0.75
1
---
®
MHz
232
(IX Bus Speed)
IXP1250 Network Processor
—
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
100 MHz
5.0
5.0
---
---
---
---
---
3
MHz
166
(IXP1250 Core
Maximum
Speed)
4.5
4.5
---
---
---
---
---
3
MHz
—
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
200
116 MHz
3.35
3.05
---
---
---
---
---
3
MHz
232
ns
ns
ns
ns
ns
ns
ns
ns
Unit
123