參數(shù)資料
型號(hào)： STK1744-D45I
廠商： Electronic Theatre Controls, Inc.
英文描述： 32K x 8 AutoStore nvSRAM with Real-Time Clock
中文描述： 32K的× 8自動(dòng)存儲(chǔ)非易失實(shí)時(shí)時(shí)鐘
文件頁(yè)數(shù)： 2/12頁(yè)
文件大?。?/td> 315K
代理商： STK1744-D45I
STK1744
ABSOLUTE MAXIMUM RATINGS
a
January 2003
2
Document Control # ML0020 rev 0.0
Voltage on Input Relative to Ground. . . . . . . . . . . . . .–0.5V to 7.0V
Voltage on Input Relative to V
SS
. . . . . . . . . . –0.6V to (V
CC
+ 0.5V)
Voltage on DQ
0-7
. . . . . . . . . . . . . . . . . . . . . . –0.5V to (V
CC
+ 0.5V)
Temperature under Bias . . . . . . . . . . . . . . . . . . . . . . –55
°
C to 85
°
C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . –65
°
C to 85
°
C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1W
DC Output Current (1 output at a time, 1s duration). . . . . . . .15mA
Note a:
Stresses greater than those listed under “Absolute Maximum Rat-
ings” may cause permanent damage to the device. This is a stress
rating only, and functional operation of the device at conditions
above those indicated in the operational sections of this specifica-
tion is not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect reliability.
DC CHARACTERISTICS
(V
CC
= 5.0V
±
10%)
Note b:
Note c:
I
CC1
and I
are dependent on output loading and cycle rate. The specified values are obtained at minimum cycle with outputs unloaded.
E
V
IH
will not produce standby current levels until any nonvolatile cycle in progress has timed out.
AC TEST CONDITIONS
CAPACITANCE
d
(T
A
= 25
°
C, f = 1.0MHz)
Note d:
These parameters are guaranteed but not tested.
SYMBOL
PARAMETER
COMMERCIAL
INDUSTRIAL
UNITS
NOTES
MIN
MAX
MIN
MAX
I
CC1
b
Average V
CC
Current
97
80
70
100
85
70
mA
mA
mA
t
AVAV
= 25ns
t
AVAV
= 35ns
t
AVAV
= 45ns
I
CC2
Average V
CC
Current during
STORE
3
3
mA
All Inputs Don’t Care, V
CC
= max
I
CC3
b
CC
Current at t
AVAV
= 200ns
Average V
10
10
mA
W
≥
(V
CC
– 0.2V)
All Others Cycling, CMOS Levels
I
SB1
c
Average
V
CC
Current
(Standby, Cycling TTL Input Levels)
30
25
22
31
26
23
mA
mA
mA
t
AVAV
= 25ns, E
≥
V
IH
t
AVAV
= 35ns, E
≥
V
IH
t
AVAV
= 45ns, E
≥
V
IH
I
SB2
c
V
CC
Standby Current
(Standby, Stable CMOS Input Levels)
1.5
1.5
mA
E
≥
(V
CC
– 0.2V)
All Others V
IN
≤
0.2V or
≥
(V
CC
– 0.2V)
I
ILK
Input Leakage Current
±
1
±
1
μ
A
V
CC
= max
V
IN
= V
SS
to V
CC
I
OLK
Off-State Output Leakage Current
±
5
±
5
μ
A
V
CC
= max
V
IN
= V
SS
to V
CC
, E or G
≥
V
IH
V
IH
Input Logic “1” Voltage
2.2
V
CC
+ .5
2.2
V
CC
+ .5
V
All Inputs
V
IL
Input Logic “0” Voltage
V
SS
– .5
0.8
V
SS
– .5
0.8
V
All Inputs
V
OH
Output Logic “1” Voltage
2.4
2.4
V
I
OUT
= –4mA
V
OL
Output Logic “0” Voltage
0.4
0.4
V
I
OUT
= 8mA
T
A
Operating Temperature
0
70
–40
85
°
C
Input Pulse Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 3V
Input Rise and Fall Times
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤
5ns
Input and Output Timing Reference Levels . . . . . . . . . . . . . . . 1.5V
Output Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Figure 1
SYMBOL
PARAMETER
MAX
UNITS
CONDITIONS
C
IN
Input Capacitance
10
pF
V = 0 to 3V
C
OUT
Output Capacitance
12
pF
V = 0 to 3V
Figure 1: AC Output Loading
480 Ohms
30 pF
INCLUDING
SCOPE AND
FIXTURE
255 Ohms
5.0V
OUTPUT
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