AUTOMOTIVE DIGITAL CLOCK IC IN7100

TECHNICAL DATA
AUTOMOTIVE DIGITAL CLOCK IC
IN7100
DESCRIPTION
IN7100 is a automotive digital clock, CMOS LSI.
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.
DIP-40
FEATURES
40
1
 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
Power Supply Voltage
Symbol
Specification
Unit
VDD - VSS
 0.5 ~ + 8.0
V
VIN
VSS  0.3 ~ VDD + 0.3
V
VOUT
VDD  30 ~ VDD + 0.3
V
Ta
 40 ~ + 85
C
TSTG
 55 ~ + 125
C
Input Voltage
Output Voltage
Operating Temperature
Storage Temperature
* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those
indicated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DC CHARACTERISTICS (Ta=25C, RH70%, CD=CG=15pF, Xtal=4.194304MHz)
Characteristic
Power Supply Voltage
Power Supply Current
Leakage Current
High Level Output Current(1)
High Level Output Current(2)
Low Level Output Current(3)
High Level Input Current(4)
High Level Input Current(5)
External Clock Duty
OSC. Feedback Resistance
Symbol
VDD-VSS
IDD
IOFF
IOH1
IOH2
IOL
IIH1
IIH2
CLD
RF
Test Conditions
No output loads, VDD=6V
VDD-VSS =5.0V
VDD-VSS=3.0V, VDD-VOUT=0.5V
VDD-VSS=3.0V, VDD-VOUT=0.5V
VDD-VSS=3.0V, VOUT –VSS=0.5V
VIN=VDD=6V
VIN=VDD=6V
VDD=6V
Min
3.0
—
Typ
—
0.3
300
500
500
—
—
40
—
—
—
15
120
50
3
Max
7.0
0.5
5.0
1500
1800
—
30
600
60
Unit
V
mA
A
A
A
A
A
A
%
M
January, 2011, Rev. 03
IN7100
(VDD-VSS=3.0~7.0V, Ta = 40 ~ +85C, RH70%, CD=CG=15pF, Xtal=4.194304MHz)
Characteristic
Power Supply Current
High Level Output Current(1)
High Level Output Current(2)
(1)
(2)
(3)
(4)
(5)
Symbol
IDD
IOH1
IOH2
Test Conditions
No output loads
VDD-VSS=3.0V, VDD-VOUT=0.5V
VDD-VSS=3.0V, VDD-VOUT=0.5V
Min
—
250
400
Typ
—
—
—
Max
0.5
—
—
Unit
mA
A
A
for segment other than bc4, ad2, 1Hz
for segment bc4, ad2, 1Hz and CLOUT
for CLOUT
for DS1, DS2, RES, HS, MS and BLK
for T1, T2, T3 and AC
PIN CONFIGURATION
BLK
40
1
VDD
DS1
DS2
T3
T2
bc4
f3
g3
a3
b3
e3
d3
c3
1HZ
g2
e2
f2
ad2
IN7100
c2
b2
f1
g1
e1
a1
d1
b1
T1
c1
MS
CLK
HS
RES
CLOUT
AC
VSS
OI
20
21
OO
40-DIP MS-011AC
January, 2011, Rev. 03
IN7100
Block Diagram
January, 2011, Rev. 03
IN7100
Block Diagram (for die)
January, 2011, Rev. 03
IN7100
APPLICATION CIRCUITs
Typical Application
D4
IN4007
B
R1
100
+
C3
33uF
ZD1
IN4737A
Cx
(1 pF)
C4
10nF
R8
24
0.5W
C2
13 pF
+
EC1
0.22 uF
~1.0 uF
R6
24
0.5W
4.194303
MHz
11V
VDD OI
ZD2
1N4732A
C5
10uF
C1
15 pF
OO
AC
HS
GRID
MS
+
FIP
RES
R9
56
2W
D2
1N4007
R2
1k
FILAMENT
SEGMENT
R7
33k

BLK
A
+
DS2
C7
33uF
+
T
D1
1N4007
D3
1N4007
R10
18k
DS1
T3
1024 Hz)
CLOUT
T2
T1
CLK
VSS
4.3~4.9V
E
ZD3
1N4732A
or
1N4731A
January, 2011, Rev. 03
IN7100
“Keeping Time” Application
Part List
S/No
IC1
VFD
XT
C1
C2
C3
EC1
EC10
C4
C11
C6~9
R1
R2
PART
IN7100
SVC-01MS01
4194304hz
10pF
15pF
1~12pF ADJ
470uF, 25V
22uF, 10V
104
104
104
68k,1/4w
-
Q’NTY
1
1
1
1
1
1
1
1
1
1
4
1
-
S/No
PART
Q’NTY
R3-1~2
R4
R5
R6
R7
R8-1~2
ZD1
ZD2
ZD3
SW1~3
D1~4
D5
CON1
560, 1/4W
100k, 1/8W
560k, 1/8W
130, 2W
130, 2W
56, 1/4W
1N4735A
1N4732A
1N4729A
Switch(THH-10910)
1N4007
1N4148
Connector(5566-05A)
2
1
1
1
1
2
1
1
1
3
4
1
1
January, 2011, Rev. 03
IN7100
PIN DESCRIPTION
PIN
#
NAME
Н
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
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
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 | VDD | VSS | VDD | VSS |
| DS2 | VDD | VDD | VSS | VSS |
| DUTY | 1/16 | 1/8 | 1/4 |
1 |
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
VDD
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
January, 2011, Rev. 03
IN7100
40-Pin Plastic Dual-in-Line
A
Aı
A2
B
B2
C
D
E
E1
e
e2
L
α
Dimension, mm
max
min
min
max
min
max
min
max
min
max
min
max
min
max
min
max
nom
nom
min
max
min
max
6.35
0.38
3.18
4.95
0.36
0.56
0.77
1.78
0.20
0.38
50.30
53.20
15.24
15.87
12.32
14.73
2.54
15.24
2.92
5.08
0º
10º
January, 2011, Rev. 03