ICM7170 Intersil Corporation, ICM7170 Datasheet - Page 4

• Manufacturer Part Number: ICM7170
• Description: Microprocessor-compatible, Real-time Clock
• Manufacturer: Intersil Corporation

DC Electrical Specifications
AC Electrical Specifications
Leakage Current INTERRUPT, I
Capacitance D0 - D7, C
Capacitance A0 - A4,
C
READ CYCLE TIMING
READ to DATA Valid, t
ADDRESS Valid to DATA Valid, t
READ Cycle Time, t
Read High Time, t
RD High to Bus Three-State, t
ADDRESS to READ Set Up Time, t
ADDRESS HOLD Time After READ, t
WRITE CYCLE TIMING
ADDRESS Valid to WRITE Strobe, t
ADDRESS Hold Time for WRITE, t
WRITE Pulse Width, Low, t
WRITE High Time, t
DATA IN to WRITE Set Up Time, t
DATA IN Hold Time After WRITE, t
WRITE Cycle Time, t
MULTIPLEXED MODE TIMING
ALE Pulse Width, High, t
ADDRESS to ALE Set Up Time, t
ADDRESS Hold Time After ALE, t
ADDRESS
PARAMETER
RH
CYC
WH
CYC
RD
I/O
LL
WL
PARAMETER
RH
OL
ACC
AL
LA
(2)
DW
WA
WD
AS
AD
AR
T
T
All I
D0 - D7 Load Capacitance = 150pF, V
A
A
= -40
= -40
DD
V
O
specifications include all input and output leakages (ICM7170 and ICM7170A) (Contin-
= V
o
o
C to 85
C to 85
DD
o
o
C, V
C, V
TEST CONDITIONS
DD
ICM7170
DD
= +5V
+5V 10%, V
12-8
10%, V
IL
INT SOURCE
Connected to V
BACKUP
= 0.4V, V
BACKUP
MIN
400
150
100
300
100
400
50
50
30
50
30
30
0
0
-
-
-
V
lH
DD
= V
= 2.8V, Unless Otherwise Specified
, V
DD
SS
SS
,
= 0V Unless Otherwise Specified
MIN
-
-
-
MAX
250
300
25
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP
0.5
8
6
MAX
10
-
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNITS
pF
pF
A