Specifications

Technical Reference

Legislation and Compliance

Product Details

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Select all	Attribute	Value
	Brand	Winbond
	Memory Size	2Gbit
	SDRAM Class	DDR2
	Organisation	256M x 8 bit
	Data Rate	800MHz
	Data Bus Width	16bit
	Address Bus Width	17bit
	Number of Bits per Word	8bit
	Maximum Random Access Time	0.4ns
	Number of Words	256M
	Mounting Type	Surface Mount
	Package Type	WBGA
	Pin Count	84
	Dimensions	12.6 x 8.1 x 0.6mm
	Height	0.6mm
	Length	12.6mm
	Maximum Operating Temperature	+95 °C
	Maximum Operating Supply Voltage	1.9 V
	Minimum Operating Supply Voltage	1.7 V
	Width	8.1mm
	Minimum Operating Temperature	-40 °C

	Select all
	Brand Winbond
	Memory Size 2Gbit
	SDRAM Class DDR2
	Organisation 256M x 8 bit
	Data Rate 800MHz
	Data Bus Width 16bit
	Address Bus Width 17bit
	Number of Bits per Word 8bit
	Maximum Random Access Time 0.4ns
	Number of Words 256M
	Mounting Type Surface Mount
	Package Type WBGA
	Pin Count 84
	Dimensions 12.6 x 8.1 x 0.6mm
	Height 0.6mm
	Length 12.6mm
	Maximum Operating Temperature +95 °C
	Maximum Operating Supply Voltage 1.9 V
	Minimum Operating Supply Voltage 1.7 V
	Width 8.1mm
	Minimum Operating Temperature -40 °C

The W972GG6KB is a 2G bits DDR2 SDRAM, and speed involving -18, -25/25I, and -3/-3I.

Double Data Rate architecture: two data transfers per clock cycle

CAS Latency: 3, 4, 5, 6 and 7

Burst Length: 4 and 8

Bi-directional, differential data strobes (DQS and /DQS ) are transmitted / received with data

Edge-aligned with Read data and center-aligned with Write data

DLL aligns DQ and DQS transitions with clock

Differential clock inputs (CLK and /CLK)

Data masks (DM) for write data

Commands entered on each positive CLK edge, data and data mask are referenced to both edges of /DQS

Posted /CAS programmable additive latency supported to make command and data bus efficiency

Read Latency = Additive Latency plus CAS Latency (RL = AL + CL)

Off-Chip-Driver impedance adjustment (OCD) and On-Die-Termination (ODT) for better signal quality

Auto-precharge operation for read and write bursts

Auto Refresh and Self Refresh modes

Precharged Power Down and Active Power Down

Write Data Mask

Write Latency = Read Latency - 1 (WL = RL - 1)

Interface: SSTL_18

Winbond W972GG6KB25I, SDRAM 2Gbit Surface Mount, 800MHz, 1.7 V to 1.9 V, 84-Pin WBGA

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