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
IN7100
PIN DESCRIPTION
PIN
#
NAME
I/O DESCRIPTION
1 BLK I
BLANCKING INPUT; When this pin is low state, FIP is off and the operation of HS, MS, RES, switch
is blocking, or vice versa
2 DS1 I
3 DS2 I
DIMMER INPUT1, DIMMER INPUT2; This PIN control the brightness of FIP. Duty of segment output
is determined depend on the level of DS1, DS2
| DS1 | V
DD
| V
SS
| V
DD
| V
SS
|
| DS2 | V
DD
| V
DD
| V
SS
| V
SS
|
| DUTY | 1/16 | 1/8 | 1/4 | 1 |
4 bc4 O
SEGMENT
OUTPUT
5 g3 O
SEGMENT
OUTPUT
6 e3 O
SEGMENT
OUTPUT
7 d3 O
SEGMENT
OUTPUT
8 c3 O
SEGMENT
OUTPUT
9 g2 O
SEGMENT
OUTPUT
10 e2 O
SEGMENT
OUTPUT
11 c2 O
SEGMENT
OUTPUT
12 g1 O
SEGMENT
OUTPUT
13 e1 O
SEGMENT
OUTPUT
14 d1 O
SEGMENT
OUTPUT
15 c1 O
SEGMENT
OUTPUT
16 -- --
NO CONNECTION
17
CLK
I
EXTERNAL CLOCK INPUT; External clock of 1024 Hz frequency can drive the IC operation
18
CLOUT
O
CLOCK OUTPUT; Clock of 1024 Hz frequency is generated when using 4.194304 MHz crystal
19
AC
I
CLEAR INPUT (power on reset input pin)
20 VSS I GROUND
21
OO
O
OSCILLATOR OUTPUT (4.194304 MHz crystal output)
22
OI
I
OSCILLATOR INPUT (4.194304 MHz crystal input)
23 RES I RES INPUT (
30 minutes auto correction Input)
24
HS
I
HOUR ADJUST INPUT
25
MS
I
MINUTE ADJUST INPUT
26 T1 I
TEST
PIN1
27 b1 O
SEGMENT
OUTPUT
28 a1 O
SEGMENT
OUTPUT
29 f1 O
SEGMENT
OUTPUT
30 b2 O
SEGMENT
OUTPUT
31 ad2 O
SEGMENT
OUTPUT
32 f2 O
SEGMENT
OUTPUT
33 1HZ O
SEGMENT
OUTPUT
(colon)
34 -- --
NO CONNECTION
35 b3 O
SEGMENT
OUTPUT
36 a3 O
SEGMENT
OUTPUT
37 f3 O
SEGMENT
OUTPUT
38 T2 I
TEST
PIN2
39 T3 I
TEST
PIN3
40 V
DD
I POWER
SUPPLY
INTERNAL STATE
pull down: BLK, DS1, DS2, AC, RES, HS, MS, TE1, TE2, TE3
P-ch OPEN DRAIN: bc4, g3, e3, d3, c3, g2, e2, c2, g1, e1, d1, c1, b1, a1, f1, b2, ad2, f2, 1Hz, b3, a3, f3
6
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