DS1225Y Dallas, DS1225Y Datasheet - Page 4

• Manufacturer Part Number: DS1225Y
• Description: 64k Nonvolatile SRAM
• Manufacturer: Dallas

AC ELECTRICAL CHARACTERISTICS
CAPACITANCE
DS1225Y
021998 4/8
PARAMETER
PARAMETER
Read Cycle Time
Access Time
OE to Output Valid
CE to Output Valid
OE or CE to
Output Active
Output High Z from De-
selection
Output Hold from Ad-
dress Change
Write Cycle Time
Write Pulse Width
Address Setup Time
Write Recovery Time
Output High Z from WE
Output Active from WE
Data Setup Time
Data Hold Time
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
ODW
t
t
t
WR1
WR2
OEW
t
ACC
t
t
COE
t
t
t
DH1
DH2
WC
WP
RC
OE
CO
OD
OH
AW
DS
SYMBOL
C
C
I/O
IN
DS1225Y-150
MIN
150
150
100
10
60
10
5
5
0
0
5
0
MAX
150
150
MIN
70
35
35
DS1225Y-170
MIN
170
170
120
10
70
10
5
5
0
0
5
0
TYP
MAX
170
170
80
35
35
(t
A
: See Note 10; V
DS1225Y-200
MIN
200
200
150
MAX
10
80
10
5
5
0
0
5
0
10
10
MAX
200
100
200
35
35
UNITS
pF
pF
UNITS NOTES
UNITS NOTES
CC
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
=5.0V
(t
A
NOTES
= 25 C)
12
13
12
13
5
5
3
5
5
4
10%)