U63764 Datasheet, PDF (7/14 Pages) List of Unclassifed Manufacturers – CapStore 8K x 8 nvSRAM

Nonvolatile Memory Operations
Mode Selection
U63764
E
W
A12 - A0
(hex)
Mode
I/O
H
X
X
Not Selected
Output High Z
L
H
X
Read SRAM
Output Data
L
L
X
Write SRAM
Input Data
L
H
0000
1555
0AAA
1FFF
10F0
0F0F
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile STORE
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
L
H
0000
1555
0AAA
1FFF
10F0
0F0E
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile RECALL
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
Power
Standby
Active
Active
Active
Active
Notes
m
k, l
k, l
k, l
k, l
k, l
k, l
k, l
k, l
k, l
k, l
k, l
k, l
k: The six consecutive addresses must be in order listed. W must be high during all six consecutive cycles. See STORE cycle and RECALL
cycle tables and diagrams for further details.
The following six-address sequence is used for testing purposes and should not be used: 0000, 1555, 0AAA, 1FFF, 10F0, 139C.
l: Activation of nonvolatile cycles does not depend on the state of G.
m: I/O state assumes that G ≤ V_IL.
No.
PowerStore
Power Up RECALL
Symbol
Alt.
IEC
24 Power Up RECALL Durationⁿ
t_RESTORE
25 STORE Cycle Duration^{f, e}
t_PDSTORE
26 Time allowed to Complete SRAM Cycle^f t_DELAY
Low Voltage Trigger Level
V_SWITCH
n: t_RESTORE starts from the time V_CC rises above V_SWITCH.
Conditions
Min. Max. Unit
650 μs
10 ms
1
μs
4.0 4.5 V
March 31, 2006
STK Control #ML0055
7
Rev 1.0