參數資料
型號： ICM7170
廠商： Intersil Corporation
英文描述： Microprocessor-Compatible, Real-Time Clock
中文描述： 微處理器兼容，實時時鐘
文件頁數： 4/13頁
文件大小： 77K
代理商： ICM7170
12-8
Leakage Current INTERRUPT, I
OL
(2)
V
O
= V
DD
INT SOURCE
Connected to V
SS
-
0.5
10
μ
A
Capacitance D0 - D7, C
I/O
-
8
-
pF
Capacitance A0 - A4,
C
ADDRESS
-
6
-
pF
AC Electrical Specifications
T
A
= -40
o
C to 85
o
C, V
DD
= +5V
±
10%, V
BACKUP
= V
DD
,
D0 - D7 Load Capacitance = 150pF, V
IL
= 0.4V, V
lH
= 2.8V, Unless Otherwise Specified
PARAMETER
MIN
MAX
UNITS
READ CYCLE TIMING
READ to DATA Valid, t
RD
-
250
ns
ADDRESS Valid to DATA Valid, t
ACC
-
300
ns
READ Cycle Time, t
CYC
400
-
ns
Read High Time, t
RH
150
-
ns
RD High to Bus Three-State, t
RH
-
25
ns
ADDRESS to READ Set Up Time, t
AS
50
-
ns
ADDRESS HOLD Time After READ, t
AR
0
-
ns
WRITE CYCLE TIMING
ADDRESS Valid to WRITE Strobe, t
AD
50
-
ns
ADDRESS Hold Time for WRITE, t
WA
0
-
ns
WRITE Pulse Width, Low, t
WL
100
-
ns
WRITE High Time, t
WH
300
-
ns
DATA IN to WRITE Set Up Time, t
DW
100
-
ns
DATA IN Hold Time After WRITE, t
WD
30
-
ns
WRITE Cycle Time, t
CYC
400
-
ns
MULTIPLEXED MODE TIMING
ALE Pulse Width, High, t
LL
50
-
ns
ADDRESS to ALE Set Up Time, t
AL
30
-
ns
ADDRESS Hold Time After ALE, t
LA
30
-
ns
DC Electrical Specifications
T
A
= -40
o
C to 85
o
C, V
DD
+5V
±
10%, V
BACKUP
V
DD
, V
SS
= 0V Unless Otherwise Specified
All I
DD
specifications include all input and output leakages (ICM7170 and ICM7170A)
(Contin-
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ICM7170
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