MB84VD23481FJ-70 Datasheet, PDF (34/55 Pages) SPANSION – 64 M (×16) FLASH MEMORY & 32 M (×16) Mobile FCRAM

MB84VD23481FJ-70
s 32M FCRAM CHARACTERISTICS for MCP
1. FCRAM Power Down Program Key Table*¹
Basic Key Table
Definition
KEY
A16
A17
Mode Select
A18
A19
A20
Area Select
Available Key Table
MODE
NAP
8M Partial
SLEEP
A16
A17
Mode Select
L
L
H
L
H
L
H
H
A18 A19 A20
LLL
LHX
HLX
HHH
AREA
BOTTOM *³
RESERVED
RESERVED
TOP *²
A16
A17
MODE
L
L
NAP *⁴
L
H
RESERVED
H
L
8M Partial
H
H
SLEEP *^4, *⁵
A18
A19
A20
Area Select
X
X
X
L
L
L
H
H
H
X
X
X
Data Retention
Area
None
Bottom 8M only
Top 8M only
None
*1 : The Power Down Program can be performed one time after compliance of Power-up timings and it
should not be re-programmed after regular Read or Write.
Unspecified addresses, A15 to A0, can be either High or Low during the programming.
The RESERVED key should not be used.
*2 : TOP area is from the lowest address location. (i.e., A20 to A0 = L)
*3 : BOTTOM area is from the highest address location. (i.e., A20 to A0 = H)
*4 : NAP and SLEEP do not retain the data and Area Select is ignored.
*5 : Default state. Power Down Program to this SLEEP mode can be omitted.
34