CYNSE10512A-133FGC Cypress Semiconductor Corp, CYNSE10512A-133FGC Datasheet - Page 99

• Manufacturer Part Number: CYNSE10512A-133FGC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYNSE10512A-133FGC

• Operating Supply Voltage (typ): 1.2V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Document #: 38-02110 Rev. *B
The MultiSearch Enable (MSE) bit in the Command Register must be set HIGH when the Command Register is programmed.
The same with the Enhanced Mode (EMODE) bit.
The sample operation shown is for 8-device-cascade, with devices 0 and 1 containing x72 tables (NES = 00 (binary) in all blocks),
devices 2 and 3 containing x144 tables (NES = 01 (binary) in all blocks), and devices 4 to 7 containing x288 tables (NES = 10
(binary) in all blocks). The following figures show three sequential searches:
The hardware connection of the 8 cascaded devices is shown in Figure 6-43. A graphical representation of the tables is shown
in Figure 6-44 using CYNSE10512As as an example.
Table 6-13. Hit/Miss Assumptions in MultiSearchMode
1. A 72-bit - 72-bit MultiSearch
2. A144-bit - 144-bit MultiSearch
3. A288-bit - 288-bit MultiSearch.
• LHI_1_L signals are active LOW while LHI_0 are active HIGH.
• The timing diagrams below correspond to the Hit/Miss assumptions defined in Table 6-13.
Search Number
Device 3 to 6
Devices 0 and 1, 256K total entries in each array
Devices 2 and 3, 128K total entries in each array
Device 0
Device 1
Device 2
Device 7
Devices 4 to 7, 128K total entries in each array
Figure 6-44. Multiwidth Configurations Example for MultiSearch with CYNSE10512As
Miss
Miss
Miss
Miss
Miss
#1 (x72–x72)
CONFIDENTIAL
Miss
Miss
Miss
Hit
Hit
72
Array 0
144
Miss
Miss
Miss
Miss
Miss
#2 (x144–x144)
288
NES = 00
NES = 01
NES = 10
Miss
Miss
Miss
Miss
Hit
72
144
Array 1
288
Miss
Miss
Miss
Miss
Hit
CYNSE10512A
CYNSE10256A
CYNSE10128A
#3 (x288–x288)
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Miss
Miss
Miss
Miss
Miss