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See Technical Specifications

W9725G6JB-25 +BOM

DRAM Chip DDR2 SDRAM 256M-Bit 16Mx16 1.8V 84-Pin WBGA

Power Supply: VDD, VDDQ = 1.8 V0.1V

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

Packaged in WBGA 84 Ball (8X12.5 mm2), using Lead free materials with RoHS compliant

Part Life Cycle Code	Obsolete	Pin Count	84
Reach Compliance Code		ECCN Code	EAR99
HTS Code	8542.32.00.24	Access Mode	MULTI BANK PAGE BURST
Access Time-Max	0.4 ns	Additional Feature	AUTO/SELF REFRESH
Clock Frequency-Max (fCLK)	400 MHz	I/O Type	COMMON
Interleaved Burst Length	4,8	JESD-30 Code	R-PBGA-B84
Length	12.5 mm	Memory Density	268435456 bit
Memory IC Type	DDR2 DRAM	Memory Width	16
Number of Functions	1	Number of Ports	1
Number of Terminals	84	Number of Words	16777216 words
Number of Words Code	16000000	Operating Mode	SYNCHRONOUS
Operating Temperature-Max	85 °C	Operating Temperature-Min
Organization	16MX16	Output Characteristics	3-STATE
Peak Reflow Temperature (Cel)	NOT SPECIFIED	Power Supplies	1.8 V
Qualification Status	Not Qualified	Refresh Cycles	8192
Seated Height-Max	1.2 mm	Self Refresh	YES
Sequential Burst Length	4,8	Standby Current-Max	0.006 A
Supply Current-Max	0.135 mA	Supply Voltage-Max (Vsup)	1.9 V
Supply Voltage-Min (Vsup)	1.7 V	Supply Voltage-Nom (Vsup)	1.8 V
Surface Mount	YES	Technology	CMOS
Temperature Grade	OTHER	Terminal Form	BALL
Terminal Pitch	0.8 mm	Terminal Position	BOTTOM
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED	Width	8 mm