HYB39S256400T-10 SIEMENS [Siemens Semiconductor Group], HYB39S256400T-10 Datasheet - Page 6

• Manufacturer Part Number: HYB39S256400T-10
• Description: 256 MBit Synchronous DRAM
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Block Diagram for 16 M 16 SDRAM (13/9/2 addressing)
Semiconductor Group
*) on SSTL versions only
Address Counter
Column
Decoder
Memory
Bank 0
8192 x
16 Bit
512 x
Array
Row
Column Addresses
Address Buffer
A0 - A8, AP,
BA0, BA1
Column
Decoder
Memory
8192 x
Bank 1
16 Bit
Array
512 x
Row
Input Buffer
CLK CKE CS RAS CAS WE DQMU DQML V
6
DQ0 - DQ15
Output Buffer
Control Logic & Timing Generator
Row Addresses
256 MBit Synchronous DRAM
Row Address
BA0, BA1
A0 - A12,
Decoder
Memory
Bank 2
8192 x
Buffer
16 Bit
512 x
Array
Row
HYB 39S256400/800/160T
Refresh
Counter
Decoder
Memory
Bank 3
8192 x
16 Bit
512 x
Array
Row
SPB03779
REF
1998-10-01
*)