Specification

Technical data sheets

Legislation and Compliance

Product Details

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Select all	Attribute	Value
	Brand	Winbond
	Memory Size	256MB
	Product Type	SDRAM
	Organisation	32M x 8 Bit
	Data Bus Width	16bit
	Address Bus Width	15bit
	Number of Bits per Word	8
	Maximum Random Access Time	55ns
	Number of Words	32M
	Mount Type	Surface
	Package Type	TSOP
	Minimum Operating Temperature	-40°C
	Pin Count	66
	Maximum Operating Temperature	85°C
	Series	W9425G6KH
	Standards/Approvals	RoHS
	Length	22.35mm
	Height	1.05mm
	Width	10.29 mm
	Minimum Supply Voltage	2.3V
	Automotive Standard	No
	Maximum Supply Voltage	2.7V

	Select all
	Brand Winbond
	Memory Size 256MB
	Product Type SDRAM
	Organisation 32M x 8 Bit
	Data Bus Width 16bit
	Address Bus Width 15bit
	Number of Bits per Word 8
	Maximum Random Access Time 55ns
	Number of Words 32M
	Mount Type Surface
	Package Type TSOP
	Minimum Operating Temperature -40°C
	Pin Count 66
	Maximum Operating Temperature 85°C
	Series W9425G6KH
	Standards/Approvals RoHS
	Length 22.35mm
	Height 1.05mm
	Width 10.29 mm
	Minimum Supply Voltage 2.3V
	Automotive Standard No
	Maximum Supply Voltage 2.7V

The W9425G6KH is a 256M DDR SDRAM and speed involving -4/-5/-5I/-5A.

Up to 250 MHz Clock Frequency

Double Data Rate architecture, two data transfers per clock cycle

Differential clock inputs (CLK and /CLK)

DQS is edge-aligned with data for Read, center-aligned with data for Write

CAS Latency: 2, 2.5, and 3

Burst Length: 2, 4 and 8

Auto Refresh and Self Refresh

Precharged Power Down and Active Power Down

Write Data Mask

Write Latency = 1

7.8μS refresh interval (8K/64 mS refresh)

Maximum burst refresh cycle: 8

Interface: SSTL_2

Winbond SDRAM 256 MB Surface, 66-Pin 16 bit TSOP