The JM488Q643A-6 is a 128M x 64bits DDR2-667 SO-DIMM. The JM488Q643A-6 consists of 16pcs 64Mx8its DDR2 SDRAMs in 60 ball FBGA packages and a 2048 bits serial EEPROM on a 200-pin printed circuit board. The JM488Q643A-5 is a Dual In-Line Memory Module and is intended for mounting into 200-pin edge connector sockets.
Synchronous design allows precise cycle control with the use of system clock. Data I/O transactions are possible on both edges of DQS. Range of operation frequencies, programmable latencies allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.

Features

• Internal memory: 1 GB
• Internal memory type: DDR2
• Memory clock speed: 667 MHz
• Memory form factor: 200-pin SO-DIMM
• ECC: Y
• CAS latency: 4
• Memory bus: 64 bit
• Check width: 8 bit
• Memory voltage: 1.8 V
• Lead plating: Gold