파트넘버.co.kr SC3788 데이터시트 PDF


SC3788 반도체 회로 부품 판매점

SIX DIGITS MULTIPLEXED LCD WATCH CMOS IC



Silan Semiconductors 로고
Silan Semiconductors
SC3788 데이터시트, 핀배열, 회로
Silan
Semiconductors
SIX DIGITS MULTIPLEXED LCD WATCH
CMOS IC WITH ALARM AND
CHRONOGRAPH
DESCRIPTION
The SC3788 is a 6 digits and 6 functions watch CMOS LCD circuit
with an alarm and chronograph function. It can directly drive 6 digits
1/2 duty multiplexed LCD and display Hours, Minutes, Seconds,
Month, Data and Day of the Week. The user’s option enables 12
hour or 24 hour format. The SC3788 is typically used in wristwatch
and suitable for many other watch applications.
FEATURES
* Power supply voltage: 3V
* 32768 Hz quartz crystal frequency
* On-chip oscillator
* On-chip voltage reducer
* 3 buttons operation
* Alarm output drive external melody
* Piezo direct drive
* Direct interface to 1/2-duty multiplexed LCD with 6 digits and
11 flags (7 days flags, AM/PM flag, chime and alarm flag)
* Colon display
* Low power dissipation
SC3788
40 39 38 37 36 35 34 33 32 31 30 29 28 27
41
42
43 26
44 25
45 24
46 23
47 22
48 21
49 20
50 19
51 18
52 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
chip topography
ABSOLUTE MAXIMUM RATINGS (Ta = 25°C, VDD = 0V)
Characteristic
Symbol
Value
Supply Voltage (1) Vss1
VSS1
-2.0 ~ 0.2
Supply Voltage (2) Vss2
VSS2
-4.0 ~ 0.2
Input Voltage range
VIN VSS2 - 0.3 ~ VDD + 0.3
Operating Temperature range
Topr
-20 ~ 60
Storage Temperature range
Tstg
-40 ~ 70
Unit
V
V
V
°C
°C
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
1


SC3788 데이터시트, 핀배열, 회로
Silan
Semiconductors
PAD ASSIGNMENT
SC3788
MS1
Dcarry
BD
ALO
BD
VDD
φ2
φ1
Vss2
S3
S2
S1
40 39 38 37 36 35 34 33 32 31 30 29 28 27
41
42
43 26
44 25
45 24
46
SC3788
47
23
22
48 21
49 20
50 19
51 18
52 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
AC
S1
S3
VDD
XO
XI
CG
T4
T3
S2
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Ta=25°C, VDD=0V, Vss2=-3.0V, Fosc=32768Hz)
Parameter
Symbol
Test conditions
Operating Voltage (1)
Vss1
Operating Voltage (2)
Vss2
Current consumption
ISUP
Time mode and load
Output current (1)
(COM1, COM2)
IOH1
IOL1
Vss2= -3.0V
VOH1=-0.05V
VOL1=-2.95V
Output current (2)
(Segment)
IOH2
IOL2
Vss2= -3.0V
VOH2=-0.05V
VOL2=-2.95V
Output current (3)
(φ1)
IOH3
Vss2= -1.25V
IOL3
VOH3=-0.10V
VOL3=-1.15V
Output current (4)
(Dcarry, MSI)
IOH
Vss2= -3.0V
IOL
VOH4=-1.50V
VOL4=-1.50V
Min
-1.25
-2.4
--
--
3.0
--
0.15
--
12
--
10
Typ Max Unit
-1.55 -1.8
V
-3.0 -3.5
V
-- 1.3 µA
-- -3.0
µA
-- --
-- -0.15
µA
--
-- -12
µA
--
-- -70
µA
--
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
2




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SC3788

SIX DIGITS MULTIPLEXED LCD WATCH CMOS IC - Silan Semiconductors