Cypress Semiconductor Perform nvSRAM Especificações descarregar pdf (Página 24)

CY14B256KA

Document Number: 001-55720 Rev. *H Page 24 of 28

Ordering Code Definitions

Truth Table For SRAM Operations

HSB must remain HIGH for SRAM operations.

Table 5. Truth Table

CE WE OE Inputs/Outputs Mode Power

H X X High Z Deselect/Power-down Standby

L H L Data out (DQ

–DQ

) Read Active

L H H High Z Output disabled Active

L L X Data in (DQ

–DQ

) Write Active

Ordering Information

Speed

(ns)

Ordering Code Package Diagram Package Type Operating Range

25 CY14B256KA-SP25XIT 51-85061 48-pin SSOP Industrial

CY14B256KA-SP25XI

45 CY14B256KA-SP45XIT

CY14B256KA-SP45XI

All the above parts are Pb-free.

Option:

T - Tape and Reel

Blank - Std.

Speed:

25 - 25 ns

Data Bus:

K - × 8 + RTC

Density:

256 - 256 Kb

Voltage:

B - 3.0 V

Cypress

CY 14 B 256 K A - SP 25 X I T

14 - nvSRAM

Temperature:

I - Industrial (–40 °C to 85 °C)

Pb-free

Package:

45 - 45 ns

Die revision:

Blank - No Rev

A - 1

Rev

SP - 48-pin SSOP

1 2 ... 19 20 21 22 23 24 25 26 27 28

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