Datasheet

DON'T CARE
NOTE 1. BL = 8, AL = 0, CL = 11, Preamble = 1tCK, t
CCD_S/L
= 5
NOTE 2. Dout n (or b) = data-out from column n (or column b).
NOTE 3. DES commands are shown for ease of illustration; other commands may be valid at these times.
NOTE 4. BL8 setting activated by either MR0[A1:A0 = 0:0] or MR0[A1:A0 = 0:1] and A12 = 1 during READ command at T0 and T5.
NOTE 5. CA Parity = Disable, CS to CA Latency = Disable, Read DBI = Disable
T0 T1 T5 T10 T11 T12 T13 T14
T15
T16
TRANSITIONING DATA
t
RPRE
t
RPST
Dout
n
Dout
n+1
Dout
n+2
Dout
n+3
Dout
n+4
Dout
n+5
Dout
n+6
Dout
b+7
RL = 11
CK#
CK
DQ
ADDR
CMD
T17
DESREAD READ DES DES DES DES DES DES DES DES
DES
Bank,
Col n
BG a
Bank Group
ADDR
DES
DQS, DQS#
T18 T19
RL = 11
BG a
or BG b
DES
DES
T20 T21
Bank,
Col b
Dout
b+1
Dout
b+2
Dout
b+3
Dout
b+4
Dout
b+5
Dout
b+6
t
CCD_S/L = 5
Dout
n+7
Dout
b
Figure 93. Nonconsecutive READ (BL8) with 1t
CK
Preamble in Same or Different Bank Group
DON'T CARE
NOTE 1. BL = 8, AL = 0, CL = 11, Preamble = 2tCK, t
CCD_S/L
= 6
NOTE 2. Dout n (or b) = data-out from column n (or column b).
NOTE 3. DES commands are shown for ease of illustration; other commands may be valid at these times.
NOTE 4. BL8 setting activated by either MR0[A1:A0 = 0:0] or MR0[A1:A0 = 0:1] and A12 = 1 during READ command at T0 and T6.
NOTE 5. CA Parity = Disable, CS to CA Latency = Disable, Read DBI = Disable
NOTE 6. t
CCD_S/L
=5 isn’t allowed in 2t
CK
preamble mode.
T0 T1 T6 T9 T10 T11 T12 T13
T14
T15
TRANSITIONING DATA
t
RPRE
t
RPST
Dout
n
Dout
n+1
Dout
n+2
Dout
n+3
Dout
n+4
Dout
n+5
Dout
n+6
Dout
b+7
RL = 11
CK#
CK
DQ
ADDR
CMD
T16
DESREAD READ DES DES DES DES DES DES DES DES
DES
Bank,
Col n
BG a
Bank Group
ADDR
DES
DQS, DQS#
T17 T18
RL = 11
BG a or
BG b
DES
DES
T19 T20
Bank,
Col b
Dout
b+1
Dout
b+2
Dout
b+3
Dout
b+4
Dout
b+5
Dout
b+6
t
CCD_S/L = 6
DES
T21
t
RPRE
Dout
n+7
Dout
b
Figure 94. Nonconsecutive READ (BL8) with 2t
CK
Preamble in Same or Different Bank Group
AS4C256M16D4
Confidential
- 96 of 201 -
Rev.1.0 Aug.2019