IC42S8200 Datasheet, PDF (17/76 Pages) Integrated Circuit Solution Inc – 1Meg x 8 Bits x 2 Banks (16-MBIT) SYNCHRONOUS DYNAMIC RAM

1+" 5& 
CKE RELATED COMMAND TRUTH TABLE⁽¹⁾
Current State
Operation
CKE
n-1 n CS RAS CAS WE A11 A10 A9-A0
Self-Refresh
Self-Refresh Recovery
Power-Down
Both Banks Idle
Other States
Undefined
Self-Refresh Recovery⁽²⁾
Self-Refresh Recovery⁽²⁾
Illegal⁽²⁾
Illegal⁽²⁾
Self-Refresh
Idle State After tRC Has Elapsed
Idle State After tRC Has Elapsed
Illegal
Illegal
Power-Down on the Next Cycle
Power-Down on the Next Cycle
Illegal
Illegal
Clock Suspend Termination on the Next Cycle ⁽²⁾
Clock Suspend
Undefined
Power-Down Mode Termination, Idle After
That Termination⁽²⁾
Power-Down Mode
No Operation
See the Operation Command Table
Bank Active Or Precharge
Auto-Refresh
Mode Register Set
See the Operation Command Table
See the Operation Command Table
See the Operation Command Table
Self-Refresh⁽³⁾
See the Operation Command Table
Power-Down Mode⁽³⁾
See the Operation Command Table
Clock Suspend on the Next Cycle⁽⁴⁾
Clock Suspend Termination on the Next Cycle
Clock Suspend Termination on the Next Cycle
HXXXXXXXX
L HHX X X X X X
L H L HHX X X X
LHLHLXXXX
LHL L XXXXX
L L XXXXXXX
HHHXXXXXX
HH L HHX X X X
HH L H L XXXX
HHL LXXXXX
HLHXXXXXX
HL LHHXXXX
HL LHL XXXX
HL L L XXXXX
LHXXXXXXX
L L XXXXXXX
HXXXXXXXX
LHXXXXXXX
L L XXXXXXX
HHHXXXXXX
HH L HX X X X X
HHL LHXXXX
HHL L LHXXX
HHL L L L
OP CODE
HLHXXXXXX
HL LHXXXXX
HL L LHXXXX
HL L L LHXXX
HL L L L L
OP CODE
LXXXXXXXX
HHXXXXXXX
HLXXXXXXX
LHXXXXXXX
L LXXXXXXX
Notes:
1. H: HIGH level input, L: LOW level input, X: HIGH or LOW level input
2. The CLK pin and the other input are reactivated asynchronously by the transition of the CKE level from LOW to HIGH. The
minimum setup time (tCKA) required before all commands other than mode termination must be satisfied.
3. Both banks must be set to the inactive (idle) state in advance to switch to power-down mode or self-refresh mode.
4. The input must be command defined in the operation command table.
Integrated Circuit Solution Inc.
17
DR018-0A 07/10/2001