Philips TPM1.3E Service Manual page 73

Circuit Descriptions, Abbreviation List, and IC Data Sheets
FUNCTIONAL BLOCK DIAGRAM (32Mx16)
4Banks x 8Mbit x 16 I/O Double Data Rate Synchronous DRAM
CLK
/CLK
CKE
/CS
Command
/RAS
Decoder
/CAS
/WE
UDQM
LDQM
A0
A1
Address
Buffer
max
A
BA0
BA1
Bank
Control
Mode Row
Register Decoder
Column Address
Counter
CLK,
/CLK
Figure 9-4 HY5DU121622DTP-D43 512Mb Block Diagram
TPM1.3E LA
Write Data Register
16
Mode
2-bit Prefetch Unit
Register
32
8Mx16 BANK 3
8Mx16 BANK 2
8Mx16 BANK 1
8Mx16 BANK 0
32
Memory
Cell
Array
Column
Decoder
CLK_DLL
UDQS,
LDQS
DLL
Block
Mode
Register
9. EN 73
DS
DQ0
16
DQ15
UDQS,
LDQS
Data Strobe
Transmitter
Data Strobe
Receiver