Specifications

Technical data sheets

Legislation and Compliance

Product Details

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Select all	Attribute	Value
	Brand	Winbond
	Product Type	SDRAM
	Memory Size	256MB
	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
	Length	22.35mm
	Width	10.29 mm
	Series	W9425G6KH
	Height	1.05mm
	Standards/Approvals	RoHS
	Minimum Supply Voltage	2.3V
	Automotive Standard	No
	Maximum Supply Voltage	2.7V

	Select all
	Brand Winbond
	Product Type SDRAM
	Memory Size 256MB
	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
	Length 22.35mm
	Width 10.29 mm
	Series W9425G6KH
	Height 1.05mm
	Standards/Approvals RoHS
	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

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