Autostore/power up recall, Switching waveforms – Cypress Perform nvSRAM User Manual
Page 12
PRELIMINARY
CY14B102L, CY14B102N
Document #: 001-45754 Rev. *B
Page 12 of 24
AutoStore/Power Up RECALL
Parameters
Description
20 ns
25 ns
45 ns
Unit
Min
Max
Min
Max
Min
Max
t
HRECALL
Power Up RECALL Duration
20
20
20
ms
t
STORE
STORE Cycle Duration
8
8
8
ms
t
DELAY
Time Allowed to Complete SRAM Cycle
20
25
25
ns
V
SWITCH
Low Voltage Trigger Level
2.65
2.65
2.65
V
t
VCCRISE
VCC Rise Time
150
150
150
μs
V
HDIS
HSB Output Driver Disable Voltage
1.9
1.9
1.9
V
t
LZHSB
HSB To Output Active Time
5
5
5
μs
t
HHHD
HSB High Active Time
500
500
500
ns
Switching Waveforms
Figure 11. AutoStore or Power Up RECALL
9
6:,7&+
9
+',6
9
9&&5,6(
W
6725(
W
6725(
W
+++'
W
+++'
W
'(/$<
W
'(/$<
W
/=+6%
W
/=+6%
W
+5(&$//
W
+5(&$//
+6%287
$XWRVWRUH
32:(5
83
5(&$//
5HDG :ULWH
,QKLELWHG
5:,
32:(583
5(&$//
5HDG :ULWH
%52:1
287
$XWRVWRUH
32:(583
5(&$//
5HDG :ULWH
32:(5
'2:1
$XWRVWRUH
1RWH
1RWH
1RWH
Notes
21. t
HRECALL
starts from the time V
CC
rises above V
SWITCH.
22. If an SRAM write has not taken place since the last nonvolatile cycle, no AutoStore or Hardware Store takes place.
23. On a Hardware STORE, Software Store / Recall, AutoStore Enable / Disable and AutoStore initiation, SRAM operation continues to be enabled for time t
DELAY
.
24. Read and Write cycles are ignored during STORE, RECALL, and while VCC is below V
SWITCH.
25. HSB pin is driven HIGH to VCC only by internal 100kOhm resistor, HSB driver is disabled.