TECHNICAL DATA
AUTOMOTIVE DIGITAL CLOCK IC
DESCRIPTION
IN7100 is a automotive digital clock, CMOS LSI.
IN7100
DIP-40
40
1
It drives fluorescent indicator panel directly. It can
be driven by a 4.194304 MHz crystal oscillator or
an external clock signal (1024 Hz). It has 4-ways
display brightness control function and its display
format is 12 hours.
FEATURES
4.194304 MHz crystal oscillator
4-ways display brightness control
( Segment signal duty: 1, 1/4, 1/8, 1/16 )
Hours and Minutes Setting
30 seconds auto correction
1024 Hz external clock drive
1024 Hz SIGNAL output
Segment Output: P-channel open drain
40 DIP package MS-011AC
ABSOLUTE MAXIMUM RATINGS
(Ta = 25
C)
Parameter Symbol
Specification
Unit
Power Supply Voltage
V
DD
- V
SS
-
0.5 ~ + 8.0
V
Input Voltage
V
IN
V
SS
-
0.3 ~ V
DD
+ 0.3
V
Output Voltage
V
OUT
V
DD
-
30 ~ V
DD
+ 0.3
V
Operating Temperature
T
a
-
40 ~ + 85
C
Storage Temperature
T
STG
-
55 ~ + 125
C
DC CHARACTERISTICS (Ta=25
C, RH70%, CD=CG=15pF, Xtal=4.194304MHz)
Characteristic
Symbol Test
Conditions Min
Typ
Max
Unit
Power Supply Voltage
V
DD
-V
SS
3.0
--
7.0
V
Power Supply Current
I
DD
No output loads, V
DD
=6V --
0.3
0.5
mA
Leakage Current
I
OFF
V
DD
-V
SS
=5.0V
5.0
A
High Level Output Current
(1)
I
OH1
V
DD
-V
SS
=3.0V, V
DD
-V
OUT
=0.5V 300 -- 1500
A
High Level Output Current
(2)
I
OH2
V
DD
-V
SS
=3.0V, V
DD
-V
OUT
=0.5V 500 -- 1800
A
Low Level Output Current
(3)
I
OL
V
DD
-V
SS
=3.0V, V
OUT
-V
SS
=0.5V 500 -- --
A
High Level Input Current
(4)
I
IH1
V
IN
=V
DD
=6V --
15
30
A
High Level Input Current
(5)
I
IH2
V
IN
=V
DD
=6V --
120
600
A
External Clock Duty
C
LD
40
50
60
%
OSC. Feedback Resistance
R
F
V
DD
=6V
3
M
(VDD-VSS=3.0~7.0V, Ta =
-40 ~ +85C, RH70%, CD=CG=15pF, Xtal=4.194304MHz)
1
IN7100
Characteristic Symbol Test
Conditions Min
Typ
Max
Unit
Power Supply Current
I
DD
No output loads
--
--
0.5
mA
High Level Output Current
(1)
I
OH1
V
DD
-V
SS
=3.0V, V
DD
-V
OUT
=0.5V 250 -- --
A
High Level Output Current
(2)
I
OH2
V
DD
-V
SS
=3.0V, V
DD
-V
OUT
=0.5V 400 -- --
A
(1) for segment other than bc4, ad2, 1Hz
(2) for segment bc4, ad2, 1Hz and CLOUT
(3) for CLOUT
(4) for DS1, DS2, RES, HS, MS and BLK
(5) for T1, T2, T3 and AC
PIN CONFIGURATION
BLK
DS1
DS2
bc4
g3
e3
d3
c3
g2
e2
c2
g1
e1
d1
c1
21
20
40
1
IN7100
V
SS
AC
CLOUT
CLK
V
DD
T3
T2
f3
a3
b3
1HZ
f2
ad2
b2
f1
a1
b1
T1
MS
HS
RES
OI
OO
40-DIP MS-011AC
2