Rainbow Electronics W982516CH - Manual (Page 33)

W982516CH
Publication Release Date: Mar 2003
- 33 - Revision A1
Operating Timing Example, continued
PowerDown Mode
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
(CLK = 100 MHz)
RAa CAa RAa CAx
RAa RAa
ax0 ax1 ax2 ax3
t SB
t CKS t CKS t CKS
t SB
t CKS
Active Standby
Power Down mode
Precharge Standby
Power Down mode
Active NOP Precharge NOPActive
Note: The PowerDown Mode is entered by asserting CKE "low".
All Input/Output buffers (except CKE buffers) are turned off in the PowerDown mode.
When CKE goes high, command input must be No operation at next CLK rising edge.
CLK
DQ
CKE
DQM
A0-A9
A11,12
A10
BS
WE
CAS
RAS
CS
Read