CY14E256LA-SZ45XI Cypress Semiconductor Corp, CY14E256LA-SZ45XI Datasheet - Page 13

• Manufacturer Part Number: CY14E256LA-SZ45XI
• Description: IC NVSRAM 256KBIT 45NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of CY14E256LA-SZ45XI

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 256K (32K x 8)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOIC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -40C to 85C
• Pin Count: 32
• Mounting: Surface Mount
• Supply Current: 52mA
• Memory Configuration: 32K X 8
• Access Time: 45ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 32
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Software Controlled STORE/RECALL Cycle
Switching Waveforms
Document Number: 001-54952 Rev. *F
t
t
t
t
t
Notes
RC
SA
CW
HA
RECALL
27. The software sequence is clocked with CE controlled or OE controlled reads.
28. The six consecutive addresses must be read in the order listed in
29. DQ output data at the sixth read may be invalid since the output is disabled at t
Parameter
HSB (STORE only)
[27, 28]
DQ (DATA)
DQ (DATA)
Address
Address
OE
CE
RWI
STORE/RECALL initiation cycle time
Address setup time
Clock pulse width
Address hold time
RECALL duration
OE
CE
t
SA
t
SA
Figure 9. CE and OE Controlled Software STORE/RECALL Cycle
t
t
LZCE
LZCE
t
t
SA
SA
Address #1
Address #1
t
t
Figure 10. AutoStore Enable / Disable Cycle
RC
t
CW
RC
Description
t
CW
t
HZCE
t
t
Table 1
HA
HA
t
HZCE
t
t
HA
HA
on page 5. WE must be HIGH during all six consecutive cycles.
DELAY
t
DELAY
time.
Address #6
Note
t
RC
t
CW
29
Min
25
20
t
Address #6
0
0
–
HA
Note
25 ns
High Impedance
t
RC
t
CW
29
t
STORE
t
HA
Max
200
t
t
HA
DELAY
–
–
–
–
/t
t
RECALL
SS
[28]
t
HA
Min
45
30
0
0
–
45 ns
CY14E256LA
Max
200
t
HHHD
–
–
–
–
t
LZHSB
Page 13 of 19
Unit
ns
ns
ns
ns
µs
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