IS42S32160A-75BL-TR ISSI, Integrated Silicon Solution Inc, IS42S32160A-75BL-TR Datasheet - Page 14

• Manufacturer Part Number: IS42S32160A-75BL-TR
• Description: IC SDRAM 512MBIT 133MHZ 90BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S32160A-75BL-TR

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 512M (16M x 32)
• Speed: 133MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 90-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IS42S32160A
14
7
Mode Register Set command
(RAS#=”L”,CAS#=”L”,WE#=”L”,BS0,1 and A12-A0 =Register Data)
The mode register stores the data for controlling the various operating modes of SDRAM.The Mode Register Set
command programs the values of CAS#latency,Addressing Mode and Burst Length in the Mode register to make
SDRAM useful for a variety of different applications.The default values of the Mode Register after power-up are
undefined;therefore this command must be issued at the power-up sequence.The state of pins BS0,1 and
A12~A0 in the same cycle is the data written to the mode register.One clock cycle is required to complete the write
in the mode register (refer to the following figure).The contents of the mode register can be changed using the
same command and the clock cycle requirements during operation as long as all banks are in the idle state.
Integrated Silicon Solution, Inc.
Rev. 00E
07/21/09