參數(shù)資料
型號： STK16C68-W25
英文描述： NVRAM (EEPROM Based)
中文描述： NVRAM中（EEPROM的基礎(chǔ)）
文件頁數(shù)： 2/9頁
文件大?。?/td> 95K
代理商： STK16C68-W25
STK16C68
July 1999
4-74
ABSOLUTE MAXIMUM RATINGS
a
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 125
°
C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .
–
65
°
C to 150
°
C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1W
DC Output Current (1 output at a time, 1s duration). . . . . . . .15mA
DC CHARACTERISTICS
(V
CC
= 5.0V
±
10%)
b
Note b:
Note c:
Note d:
Note e:
The STK16C68-20 requires V
CC
= 5.0V
±
5%
supply to operate at specified speed.
I
CC1
and I
CC3
are dependent on output loading and cycle rate. The specified values are obtained with outputs unloaded.
I
CC2
and I
CC4
are the average currents required for the duration of the respective
STORE
cycles (t
STORE
).
E
≥
V
IH
will not produce standby current levels until any nonvolatile cycle in progress has timed out.
AC TEST CONDITIONS
CAPACITANCE
f
(T
A
= 25
°
C, f = 1.0MHz)
Note f:
These parameters are guaranteed but not tested.
SYMBOL
PARAMETER
COMMERCIAL
INDUSTRIAL
UNITS
NOTES
MIN
MAX
MIN
MAX
I
CC1
c
Average V
CC
Current
100
90
75
65
N/A
90
75
65
mA
mA
mA
mA
t
AVAV
= 20ns
t
AVAV
= 25ns
t
AVAV
= 35ns
t
AVAV
= 45ns
I
CC2
I
CC3
d
Average V
CC
Current during
STORE
3
3
mA
All Inputs Don
’
t Care, V
CC
= max
c
Average V
CC
Current at t
AVAV
= 200ns
5V, 25
°
C, Typical
10
10
mA
W
≥
(V
CC
–
0.2V)
All Others Cycling, CMOS Levels
I
SB1
e
Average
V
CC
Current
(Standby, Cycling TTL Input Levels)
32
27
23
20
N/A
28
24
21
mA
mA
mA
mA
t
AVAV
= 20ns, E
≥
V
IH
t
AVAV
= 25ns, E
≥
V
IH
t
AVAV
= 35ns, E
≥
V
IH
t
AVAV
= 45ns, E
≥
V
IH
I
SB2
e
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
8
pF
V = 0 to 3V
C
OUT
Output Capacitance
7
pF
V = 0 to 3V
Figure 1: AC Output Loading
480 Ohms
30 pF
INCLUDING
SCOPE AND
FIXTURE
255 Ohms
5.0V
OUTPUT
Note a:
Stresses greater than those listed under
“
Absolute Maximum
Ratings
”
may cause permanent damage to the device. This is a
stress rating only, and functional operation of the device at condi-
tions above those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rat-
ing conditions for extended periods may affect reliability.
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