CY14E256LA-SZ45XI Cypress Semiconductor Corp, CY14E256LA-SZ45XI Datasheet - Page 15

• 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

Truth Table For SRAM Operations
HSB must remain HIGH for SRAM operations.
Ordering Information
Ordering Code Definition
Document Number: 001-54952 Rev. *F
Table 2. Truth Table
All the mentioned parts are Pb-free.
CY 14 E 256 L A-ZS 25 X I T
Speed
(ns)
CE
25
45
H
L
L
L
CY14E256LA-SZ25XIT
CY14E256LA-SZ25XI
CY14E256LA-SZ45XIT
CY14E256LA-SZ45XI
Cypress
WE
H
H
X
L
Ordering Code
14 – nvSRAM
OE
H
X
X
L
Voltage:
E – 5.0 V
Die revision:
Blank – No rev
A – 1
High Z
Data out (DQ
High Z
Data in (DQ
Pb-Free
st
Rev
Inputs/Outputs
0
–DQ
0
–DQ
7
)
7
Option:
T – Tape and Reel
Blank – Std.
Package:
ZS – 44 TSOP II
SZ – 32 SOIC
)
51-85127
Package
Diagram
Deselect/power-down
Read
Output disabled
Write
32-pin SOIC
Temperature:
I – Industrial (–40 to 85
Package Type
Data Bus:
L – x8
Mode
256 – 256 Kb
Density:
o
C)
Standby
Active
Active
Active
CY14E256LA
Operating
Industrial
Speed:
25 to 25 ns
45 to 45 ns
Range
Power
Page 15 of 19
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