EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 13

• Manufacturer Part Number: EM636327Q-7
• Description: 512K x 32 High Speed Synchronous Graphics DRAM(SGRAM)
• Manufacturer: Etron Technology Inc.

Preliminary
9
CLK
COM MAND
CAS# latency=1
t CK1 , DQ's
CAS# latency=2
t CK2 , DQ's
CAS# latency=3
t CK3 , DQ's
NOP cycles(m equals (t
command. However, BankActivate or BankPrecharge commands to the other bank are allowed.
When following a Block Write with a BankPrecharge or PrechargeAll command to the same bank,
t
Write and AutoPrecharge command (refer to the following figure)
(RAS# = "H", CAS# = "L", WE# = "L", DSF = "L", BS = Bank, A9 = "H", A0-A7 = Column Address)
the write operation. Once this command is given, any subsequent command can not occur within a
time delay of {(burst length -1) + t
performed in this command and the auto precharge function is ignored.
BPL
Inputs
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ
must be met.
Burst Write with Auto-Precharge
A block write access requires a time period of t
The Write and AutoPrecharge command performs the precharge operation automatically after
t
DAL
=
Activate
Bank A
t
T0
Column Address DQ Planes
WR
A2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
+
t
RP
A1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
T 1
NOP
BWC
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
- t
Controlled
T2
NOP
CK
8~15
8~15
8~15
8~15
8~15
8~15
8~15
8~15
)/t
0~7
0~7
0~7
0~7
0~7
0~7
0~7
0~7
CK
WR
rounded up to the next whole number), after the Block Write
AutoPrecharge
DIN A 0
DIN A 0
DIN A 0
+ t
Write A
T3
RP
13
(min.)}. At full-page burst, only the write operation is
Inputs
(Burst Length = 2, CAS# Latency = 1, 2, 3)
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ
DIN A 1
DIN A 1
DIN A 1
NOP
T4
BWC
Column Address DQ Planes
to execute, so in general, there should be m
A2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
t
DAL
*
*
*
*
T5
NOP
Begin AutoPrecharge
Bank can be reactivated at completion of
A1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
t
DAL
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
T6
NOP
t
DAL
Controlled
16~23
16~23
16~23
16~23
16~23
16~23
16~23
16~23
24~31
24~31
24~31
24~31
24~31
24~31
24~31
24~31
EM636327
T7
NOP
December
t
DAL
NOP
T8
1998