CY14E256L-SZ45XC Cypress Semiconductor Corp, CY14E256L-SZ45XC Datasheet - Page 10

• Manufacturer Part Number: CY14E256L-SZ45XC
• Description: IC NVSRAM 256KBIT 45NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of CY14E256L-SZ45XC

• 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: 0°C ~ 70°C
• Package / Case: 32-SOIC (7.5mm Width)
• 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: Commercial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 70C
• Pin Count: 32
• Mounting: Surface Mount
• Supply Current: 70mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC Switching Characteristics
SRAM Read Cycle
Switching Waveforms
Notes
Document Number: 001-06968 Rev. *H
t
t
t
t
t
t
t
t
t
t
t
9. WE and HSB must be HIGH during SRAM Read cycles.
10. Device is continuously selected with CE and OE both Low.
11. Measured ±200 mV from steady state output voltage.
ACE
RC
AA
DOE
OHA
LZCE
HZCE
LZOE
HZOE
PU
PD
Parameter
Cypress
[10]
[9]
[8]
[8]
[10]
[11]
[11]
[11]
[11]
Parameter
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t
t
t
t
t
t
t
t
t
t
ELQV
AVAV,
AVQV
GLQV
AXQX
ELQX
EHQZ
GLQX
GHQZ
ELICCH
EHICCL
t
ELEH
Alt
Chip Enable Access Time
Read Cycle Time
Address Access Time
Output Enable to Data Valid
Output Hold After Address Change
Chip Enable to Output Active
Chip Disable to Output Inactive
Output Enable to Output Active
Output Disable to Output Inactive
Chip Enable to Power Active
Chip Disable to Power Standby
Figure 7. SRAM Read Cycle 1: Address Controlled
Figure 8. SRAM Read Cycle 2: CE and OE Controlled
Description
Min
25
5
5
0
0
25 ns
Max
25
10
10
25
25
10
[9, 10]
Min
35
[9]
5
5
0
0
35 ns
Max
35
35
15
13
13
35
Min
45
5
5
0
0
CY14E256L
45 ns
Page 10 of 19
Max
45
45
20
15
15
45
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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