Product Info I could find:

Part Description 512MB DDR2-533 PC-4200 SODIMM Memory
Part Number HYMP564S64BP6-C4
Info 2R X 16 PC2-4200S-444-12

Description
This Hynix unbuffered Slim Outline Dual In-Line Memory Module(DIMM) series consists of 512Mb B ver. DDR2 SDRAMsin Fine Ball Grid Array(FBGA) packages on a 200pin glass-epoxy substrate.
This Hynix 512Mb B ver. based UnbufferedDDR2 SO-DIMM series provide a high performance 8 byte interface in 67.60mm width form factor of industry standard.
It is suitable for easy interchange and addition.

Features
JEDEC standard Double Data Rate2 Synchronous DRAMs (DDR2 SDRAMs)
with 1.8V +/- 0.1V Power Supply
All inputs and outputs are compatible with SSTL_1.8 interface
Posted CAS
Programmable CAS Latency 3 ,4 ,5
OCD (Off-Chip Driver Impedance Adjustment) and ODT (On-Die Termination)
Fully differential clock operations (CK & /CK)
Programmable Burst Length 4 / 8 with both sequential and interleave mode
Auto refresh and self refresh supported
8192 refresh cycles / 64ms
Serial presence detect with EEPROM
DDR2 SDRAM Package: 60ball(x8), 84ball(x16) FBGA
67.60 x 30.00 mm form factor
Lead-free Products are RoHS compliant