Datasheet

Functional Block Diagram
CK#
DLL
CLOCK
BUFFER
COLUMN
COUNTER
CKE
CS#
RAS#/A16
CAS#/A15
WE#/A14
RESET#
PAR
TEN
ACT#
A10/AP
A12/BC#
A0~A9
A11
A13
A14
CK
LDQS
LDQS#
UDQS
UDQS#
DQ
Buffer
LDM#/LDBI#
UDM#/UDBI#
DQ0~DQ15
ODT
32M x 16
CELL ARRAY
(BANK #0)
Row
Decoder
Column Decoder
32M x 16
CELL ARRAY
(BANK #1)
Row
Decoder
Column Decoder
32M x 16
CELL ARRAY
(BANK #2)
Row
Decoder
Column Decoder
32M x 16
CELL ARRAY
(BANK #3)
Row
Decoder
Column Decoder
32M x 16
CELL ARRAY
(BANK #0)
Row
Decoder
Column Decoder
32M x 16
CELL ARRAY
(BANK #1)
Row
Decoder
Column Decoder
32M x 16
CELL ARRAY
(BANK #2)
Row
Decoder
Column Decoder
32M x 16
CELL ARRAY
(BANK #3)
Row
Decoder
Column Decoder
REFRESH
COUNTER
DATA
STROBE
BUFFER
VSSQ
RZQ
BG & BA
Control
BG0
BA0~BA1
Bank Group 0
Bank Group 1
MODE
REGISTER
COMMAND
DECODER
BG and BA
CONTROL
ZQ CAL
ADDRESS
BUFFER
CONTROL
SIGNAL
GENERATOR
ALERT#
CRC and
parity Control
Figure 2. Block Diagram
AS4C256M16D4
Confidential
- 4 of 201 -
Rev.1.0 Aug.2019