X25401 Datasheet, PDF (10/14 Pages) Xicor Inc. – SPI Serial AUTOSTORE™ NOVRAM

X25401
NONVOLATILE OPERATIONS
Operation
Hardware Recall
Software Recall
Software Store
RECALL
0
1
1
Software
Instruction
NOP⁽⁵⁾
RCL
STO
ARRAY RECALL LIMITS
Symbol
t_RCC
t_RCP
t_RCZ
Parameter
Recall Cycle Time
Recall Pulse Width⁽⁶⁾
Recall to Output in High Z
Min.
2
500
Recall Timing
RECALL
tRCC
tRCP
Write Enable
Latch State
X
X
SET
Max.
500
Previous
Recall Latch
State
X
X
SET
2051 PGM T10
Units
µs
ns
ns
2051 PGM T11
tRCZ
SO
HIGH Z
2051 FHD F06
SOFTWARE STORE CYCLE LIMITS
Symbol
Parameter
t_ST
Store Time After Clock 8 of STO Command
Min.
Typ.⁽⁷⁾
2
Notes: (5) NOP designates when the X25401 is not currently executing an instruction.
(6) Recall rise time must be <10µs.
(7) Typical values are for T_A = 25°C and nominal supply voltage.
Max.
5
Units
ms
2051 PGM T12.1
10