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H1344V40DL8A Datasheet

  • H1344V40DL8A

  • CMOS Circuit for Analog Quartz Clocks with Bipolar Stepping ...

  • 6頁

  • EMMICRO

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R
EM MICROELECTRONIC -
MARIN SA
H1344
CMOS Circuit for Analog Quartz Clocks with Bipolar
Stepping Motor Drive
Description
The H 1344 is a low power 32Khz analog clock integrated
circuit designed in HCMOS technology to drive a bipolar
stepping motor. A set of capacitors is provided on chip to be
connected, in any combination, to the two oscillator
terminals, with a maximum total capacitance of 48
p
F. Both
the motor pulse period and the motor pulse width are mask-
programmable.
See page 6 for already available options.
Features
!
!
!
!
!
!
!
!
!
!
!
32kHz quartz oscillator
Integrated capacitors, mask selectable
Single battery operation
0.7
碌A(chǔ)
typical current consumption
Low resistance outputs for bipolar stepping motor
Mask options for pad designation, motor period and
pulse width, alarm frequency, modulation and duty
cycle
Alarm output function compatible with either NPN or
PNP-driver transistors
Alarm input function
1024Hz output on AL
IN
pad for oscillator frequency
verification
Fast test function
ESD protected terminals
Applications
!
Analog clocks
Functional Diagram
Pin Assignment
V
DD
1
2
3
4
8
7
6
5
1.5V
+
C
TR
1
2
3
4
Motor
M
H1344
V40
V41
V47
V143
OSC
IN
OSC
OUT
ALARM
OUT
MOT
1
V
SS
MOT
2
8
H1344
V40
V41
V47
ALARM
IN
7
6
5
V
DD
V
SS
MOT
2
Fig. 1
1
2
3
4
8
Alarm Output
OSC
OUT
OSC
IN
ALARM
OUT
MOT
1
H1344
V38
7
6
5
ALARM
IN
Fig. 2
Copyright 漏 2004, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com

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