Sony S-Series Disassembled (NW-S745)
I stumbled onto a blog that disassembled a Sony S745 back in March of this year. The website used a Japanese S-Series, NW-S745, but there shouldn’t be any difference in hardware between the NW-S745 and NWZ-S745. The blog states that the CPU is the NEC MC-10118A (EMMA Mobile1-D512). According the Renesas website which manufactures the chip, both the CPU and DSP run at 500Mhz. More information and photos after the break.
Images courtesy of Here
I should point out, none of the photos show the cpu, but I do believe that the blog is correct when it states the CPU is the EM1-D512. From a Renesas PDF, here is a description of the chip found inside the S-Series:
MC-10118A (EMMA Mobile1-D512) is a multimedia processor for mobile applications that integrates a logic chip incorporating a CPU and DSP, and a Mobile DDR SDRAM chip, in one package.
Here are the specifications from the Renesas website.
Here is the block diagram:
So there you have it, a 500Mhz CPU and DSP with 512Mbit of RAM. Not bad for a little walkman if you ask me. According to an AV Watch article, the CPU can output 720x480 which is what the S-Series is capable of using the TV-out. Additionally the CPU can output also 800x480 which is half the resolution of the A-Series OLED screen interestingly enough. If anyone discovers more information with regards to the chip and from the images, please do contact me at firstname.lastname@example.org