NAD T748 Service Manual page 31

BLOCK DIAGRAM
A3S56D40FTP
DLL
Memory
Array
Bank #0
Mode Register
Address Buffer
A0-12
BA0,1
DQ0 - 15
I/O Buffer
Memory Memory
Array Array
Bank #1 Bank #2
Control Circuitry
Clock Buffer
CLK /CLK CKE
2-19
UDQS, LDQS
DQS Buffer
Memory
Array
Bank #3
Control Signal Buffer
/CS /RAS /CAS /WE UDM,
LDM