km416s1120d ETC-unknow, km416s1120d Datasheet - Page 42

• Manufacturer Part Number: km416s1120d
• Description: 512k X 16bit X 2 Banks Synchronous Dram Lvttl
• Manufacturer: ETC-unknow

CLOCK
KM416S1120D
ADDR
DQM
CKE
RAS
CAS
WE
DQ
CS
Mode Register Set Cycle
* Both banks precharge should be completed before Mode Register Set cycle and auto refresh cycle.
*Note :
0
1
1. CS, RAS, CAS, & WE activation at the same clock cycle with address key will set internal mode register.
2. Minimum 2 clock cycles should be met before new RAS activation.
3. Please refer to Mode Register Set table.
MODE REGISTER SET CYCLE
MRS
Key
*Note 3
*Note 2
*Note 1
2
HIGH
Hi-Z
3
Command
New
Ra
4
5
6
7
8
- 42
Auto Refresh Cycle
0
9
Auto Refresh
1
10
2
11
HIGH
12
3
Hi-Z
13
4
5
tRC
14
15
6
CMOS SDRAM
Rev. 1.4 (Jun. 1999)
16
7
17
8
New Command
18
9
: Don't care
10
19