6.4210
IDT71V3577YS_79YS, IDT71V3577YSA_79YSA, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
3.3V I/O, Flow-Through Outputs, Burst Counter, Single Cycle Deselect Commercial and Industrial Temperature Ranges
Synchronous Truth Table
(1,3)
NOTES:
1. L = VIL, H = VIH, X = Don’t Care.
2. OE is an asynchronous input.
3. ZZ - low for the table.
Operation Address
Used
CE
CS
0
CS
1
ADSP ADSC A DV GW BWE BWx OE
(2 )
CLK I/O
Deselected Cycle, Power Down None H X X X L X X X X X
↑
HI-Z
Deselected Cycle, Power Down None L X H L X X X X X X ↑ HI-Z
Deselected Cycle, Power Down None L L X L X X X X X X ↑ HI-Z
Deselected Cycle, Power Down None L X H X L X X X X X ↑ HI-Z
Deselected Cycle, Power Down None L L X X L X X X X X ↑ HI-Z
Read Cycle, Begin Burst External L H L L X X X X X L ↑ D
OUT
Read Cycle, Begin Burst External L H L L X X X X X H ↑ HI-Z
Read Cycle, Begin Burst External L H L H L X H H X L ↑ D
OUT
Read Cycle, Begin Burst External L H L H L X H L H L ↑ D
OUT
Read Cycle, Begin Burst External L H L H L X H L H H ↑ HI-Z
Write Cycle, Begin Burst External L H L H L X H L L X ↑ D
IN
Write Cycle, Begin Burst External L H L H L X L X X X
↑
D
IN
Read Cycle, Continue Burst Next X X X H H L H H X L ↑ D
OUT
Read Cycle, Continue Burst Next X X X H H L H H X H ↑ HI-Z
Read Cycle, Continue Burst Next X X X H H L H X H L
↑
D
OUT
Read Cycle, Continue Burst Next X X X H H L H X H H ↑ HI-Z
Read Cycle, Continue Burst Next H X X X H L H H X L ↑ D
OUT
Read Cycle, Continue Burst Next H X X X H L H H X H ↑ HI-Z
Read Cycle, Continue Burst Next H X X X H L H X H L ↑ D
OUT
Read Cycle, Continue Burst Next H X X X H L H X H H ↑ HI-Z
Write Cycle, Continue Burst Next X X X H H L H L L X ↑ D
IN
Write Cycle, Continue Burst Next X X X H H L L X X X ↑ D
IN
Write Cycle, Continue Burst Next H X X X H L H L L X
↑
D
IN
Write Cycle, Continue Burst Next H X X X H L L X X X ↑ D
IN
Read Cycle, Suspend Burst Current X X X H H H H H X L ↑ D
OUT
Read Cycle, Suspend Burst Current X X X H H H H H X H
↑
HI-Z
Read Cycle, Suspend Burst Current X X X H H H H X H L ↑ D
OUT
Read Cycle, Suspend Burst Current X X X H H H H X H H ↑ HI-Z
Read Cycle, Suspend Burst Current H X X X H H H H X L ↑ D
OUT
Read Cycle, Suspend Burst Current H X X X H H H H X H ↑ HI-Z
Read Cycle, Suspend Burst Current H X X X H H H X H L ↑ D
OUT
Read Cycle, Suspend Burst Current H X X X H H H X H H ↑ HI-Z
Write Cycle, Suspend Burst Current X X X H H H H L L X ↑ D
IN
Write Cycle, Suspend Burst Current X X X H H H L X X X ↑ D
IN
Write Cycle, Suspend Burst Current H X X X H H H L L X ↑ D
IN
Write Cycle, Suspend Burst Current H X X X H H L X X X ↑ D
IN
6450 tbl 11