CY14B256L-SZ45XIT Cypress Semiconductor Corp, CY14B256L-SZ45XIT Datasheet - Page 3

• Manufacturer Part Number: CY14B256L-SZ45XIT
• Description: IC NVSRAM 256KBIT 45NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of CY14B256L-SZ45XIT

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 256K (32K x 8)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°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): 3.3V
• Package Type: SOIC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 2.7V
• Operating Temp Range: -40C to 85C
• Pin Count: 32
• Mounting: Surface Mount
• Supply Current: 55mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Configurations
Pin Definitions
Document Number: 001-06422 Rev. *I
Pin Name
DQ
A
V
HSB
0
V
V
WE
CE
OE
NC
0
–A
CAP
SS
CC
-DQ
14
7
Alt
W
E
G
No Connect
Input or Output Bidirectional Data IO Lines. Used as input or output lines depending on operation.
Input or Output Hardware Store Busy (HSB). When LOW, this output indicates a Hardware Store is in progress.
Power Supply Power Supply Inputs to the Device.
Power Supply AutoStore Capacitor. Supplies power to nvSRAM during power loss to store data from SRAM
IO Type
Ground
Input
Input
Input
Input
Figure 1. Pin Diagram - 32-Pin SOIC and 48-Pin SSOP
Address Inputs. Used to select one of the 32,768 bytes of the nvSRAM.
Write Enable Input, Active LOW. When the chip is enabled and WE is LOW, data on the IO
pins is written to the specific address location.
Chip Enable Input, Active LOW. When LOW, selects the chip. When HIGH, deselects the chip.
Output Enable, Active LOW. The active LOW OE input enables the data output buffers during
read cycles. Deasserting OE HIGH causes the IO pins to tri-state.
Ground for the Device. The device is connected to ground of the system.
When pulled low external to the chip, it initiates a nonvolatile STORE operation. A weak internal
pull up resistor keeps this pin high if not connected (connection optional).
to nonvolatile elements.
No Connect. This pin is not connected to the die.
Description
CY14B256L
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