CYNSE70064A-66BGC Cypress Semiconductor Corp, CYNSE70064A-66BGC Datasheet - Page 116

• Manufacturer Part Number: CYNSE70064A-66BGC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYNSE70064A-66BGC

• Operating Supply Voltage (typ): 1.8V
• Operating Supply Voltage (min): 1.7V
• Operating Supply Voltage (max): 1.9V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Package Type: BGA
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

12.9
Table 12-2 shows the idle cycle requirements between operations. The operations in the second column represent operations
already performed, and the operations in the first row are to be performed next.
Example calculations:
Document #: 38-02041 Rev. *F
1. Read after Write: The Write takes two 2 cycles, and one 1 idle cycle is required. Thus if the Write is issued in cycle 1, the Read
2. Learn from SRR after Search x288, with TLSZ=10 (binary): The Search takes 2 cycles, and (2+TLSZ) idle cycles are required.
cannot be issued until cycle 4. Note, all cycles after an SRAM Read or an NSE Read (blocking) operation are considered
blocked until the ACK signal is returned.
Thus if the Search is issued in cycle 1, the Learn cannot be issued until cycle 7.
Timing Sequences for Back-to-Back Operations
Figure 12-14. SRAM Write Through Device Number 0 in Bank of 31 CYNSE70064A Devices
SADR[21:0]
CMD[8:2]
CMD[1:0]
PHS_L
CMDV
CLK2X
ACK
ALE_L
OE_L
CE_L
SSV
TLSZ = 10, HLAT = XXX, LRAM = 1, LDEV = 1
WE_L
SSF
DQ
1
1
0
1
0
0
z
Address
cycle
Write
1
A B
01
cycle
(Device Number 30 Timing)
2
x
cycle
3
x
cycle
4
cycle
5
cycle
6
cycle
7
1
cycle
8
z
z
z
z
cycle
9
1
1
1
cycle
10
CYNSE70064A
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