k4d263238a-gc50 Samsung Semiconductor, Inc., k4d263238a-gc50 Datasheet - Page 7

• Manufacturer Part Number: k4d263238a-gc50
• Description: 1m X 32bit X 4 Banks Double Data Rate Synchronous Ram With Bi-directional Data Strobe And Dll
• Manufacturer: Samsung Semiconductor, Inc.

K4D26323RA-GC
BLOCK DIAGRAM
CK,CK
ADDR
LCKE
CK,CK
LRAS LCBR
Bank Select
(1Mbit x 32I/O x 4 Bank)
CKE
LWE
CS
CK, CK
* VDD / VDDQ=2.8V *
LCAS
RAS
Timing Register
CAS
Latency & Burst Length
Programming Register
Data Input Register
- 7 -
Column Decoder
Serial to parallel
1Mx32
1Mx32
1Mx32
1Mx32
64
WE
Intput Buffer
32
LWCBR
DMi
64
CK,CK
DLL
32
128M DDR SDRAM
LDMi
DQi
Rev. 2.0 (Jan. 2003)
LWE
LDMi
x32
Data Strobe
(DQS0~DQS3)