EM H1344V40DLWS11 Cmos circuit for analog quartz clocks with bipolar stepping motor drive Datasheet

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EM MICROELECTRONIC - MARIN SA
H1344
CMOS Circuit for Analog Quartz Clocks with Bipolar
Stepping Motor Drive
Description
Features
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 48pF. Both
the motor pulse period and the motor pulse width are maskprogrammable. See page 6 for already available options.
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Applications
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! Analog clocks
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Functional Diagram
1.5V
32kHz quartz oscillator
Integrated capacitors, mask selectable
Single battery operation
0.7 µA 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 ALIN pad for oscillator frequency
verification
Fast test function
ESD protected terminals
Pin Assignment
VDD
1
VSS
2
MOT2
3
ALARMIN
4
Motor
VDD
1
M
VSS
2
MOT2
3
ALARMIN
4
C TR
+
1
2
3
8
H1344
V40
V41
V47
4
H1344
V40
V41
V47
V143
8
OSCIN
7
OSCOUT
6
ALARMOUT
5
MOT1
8
OSCOUT
7
OSCIN
6
ALARMOUT
5
MOT1
7
6
Alarm Output
5
Fig. 1
H1344
V38
Fig. 2
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H1344
Absolute Maximum Ratings
Recommended Operating Conditions
Parameter
Symbol
Min.
Max.
Units
Supply voltage range
Input voltage
Storage temperature
VDD –VSS
VIN
TSTOR
-0.3
VSS
-55
+5
VDD
+125
V
V
°C
Table 1
Parameter
Symbol
Value
Units
Ambient temperature
Quartz frequency
Quartz series resistance
Motor coil resistance
Positive supply
Negative supply
T
FQ
RQ
RM
VDD
VSS
25
32768
30
200
1.55
0
°C
Hz
kΩ
Ω
V
V
Table 2
Stresses beyond these listed maximum ratings may cause
permanent damage to the device. Exposure to conditions
beyond specified operating conditions may affect device
reliability or cause malfunction.
Operating Conditions
Handing Procedures
This device contains circuitry to protect the terminals
against damage due to high static voltages or electrical
fields. However, it is advised that normal precautions be
taken to avoid application of any voltage higher than
maximum rated voltages to this circuit.
Parameter
Symbol
Operating temperature
Quartz series resistance
Trimmer capacitance
TOPR
Min.
-20
CTR
1.5
Typ.
Max.
30
+70
50
30
Units
°C
kΩ
pF
Table 3
Electrical and Switching Characteristics
at recommended operating conditions (valid unless otherwise specified)
Parameter
Symbol
Test
Supply voltage
Supply current
VDD IDD
operating
without, ALIN open
+1.1
Motor Output
Current into load
Pulse period
Pulse width
IM
T1
tw
VDD = 1.2V, RM=200Ω
±4.0
Alarm Output
Frequency
Modulation
Cycle time
Pulse duration
Output current for
driving NPN-transistor
Output current for
driving PNP-transistor
fA
fA1
t2
tP
IALOUTN
IALOUTN
IALOUTN
IALOUTN
Alarm Input
Test In/Output
Alarm input delay
Test frequency
Input current (alarm)
Input current
tALD
fT
IIN
IIN
Input at VSS, VDD = 1.4V
Input at VDD
tSTART
VDD = 1.2V
Oscillator
Build-up time
Stability against
voltage variation
Output capacitance
Input capacitance
∗
supply
!f
! VDD xf
Min.
VDD=1.2V, VOL = 0.2V
VDD=1.2V, VOH = 0.7V
VDD=1.2V, VOL = 0.5V
VDD=1.2V, VOH = 1.0V
0.5
0.3
0.3
0.5
Typ.
0.7
1.1V≤VDD≤1.8V
+1.8
2.0
V
µA
mA
s
ms
Mask option∗
Mask option∗
Mask option∗
Mask option∗
Hz
Hz
s
s
µA
mA
mA
µA
570
1024
-5
15
5
Mask option∗
Mask option∗
COUT
CIN
Units
Mask option∗
Mask option∗
125
-1
1
Max.
-10
30
ms
Hz
µA
µA
2
s
12
ppm/V
pF
pF
Table 4
: See “Available options” on page 6.
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H1344
Timing Waveforms
Motor Output Waveform
VDD
MOT1
VSS
tw
VDD
MOT2
VSS
T1
Fig. 3
Alarm Output Waveform
1024 Hz
2048 Hz
ALIN
tALD
ALOUT
1
fA1
tP
T2
Fig. 4
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H1344
Functional Description
Alarm Output
The alarm is activated by connecting ALARMIN to VSS and is
deactivated by opening the connection. A metal mask
option is available to program a continuous activation of the
alarm output.
The alarm output driver contains a push-pull output buffer
to drive an external sound source by means of an external
bipolar transistor. A metal mask option is available to allow
the use of NPN or PNP-transistors.
The tone frequency, modulation frequency, modulation
frequency and cycle time (ON/OFF time) are metal mask
selectable.
Oscillator and Frequency Divider
The quartz oscillator consists of an inverter, internal
feedback resistance to bias the input and integrated
capacitors. The values of the integrated capacitors are
selectable by metal mask. The oscillator is designed for
32768Hz.
Motor Drive Output
The circuit contains two push-pull output buffers for driving
bipolar stepping motors. Between two pulses, both Pchannel transistor of the other buffer are conducting. The
outputs are protected against inductive voltage spikes with
diodes to both supply pins.
Both the motor pulse period and motor pulse width are
programmable by metal mask over a wide range of values
(see page 6 for available options).
Test Mode
The ALARMIN pin fulfills three functions:
a) For normal operation, the ALARMIN pin is left open.
The circuit provides a square wave signal of 1024Hz,
which can be used to tune the oscillator.
b) If the pin is connected to VSS, the alarm signal is
provided at pin 6.
c) If the ALARMIN pin is connected to VDD, all output
frequencies are increased by a factor of 64, the alarm
modulation of fA1 = 8Hz and fA = 2kHz are suppressed.
Test configuration
1.5V
C TR
+
1
Test
8
H1344
2 V40
V41
3 V47
4
7
6
Alarm Output
5
RM
Operating range of trimmer
Capacitance: 1.5 pF ≤ CTR ≤ 30 pF
Fig. 5
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H1344
Pad Location Diagram
0
All dimensions in µm
1000
795
VDD
OSCIN
VSS
OSCOUT
978
702
231
1499
H1344
v40
v41
v47
0
304
ALOUT
MOT2
ALIN
28
MOT1
276
905
0
192
0
1270
1000
795
VDD
OSCOUT
VSS
OSCIN
978
702
231
1499
H1344
v05
v56
v38
0
304
ALOUT
MOT2
ALIN
28
MOT1
276
Chip size:
905
0
192
1270
1270 x 1499 microns
50 x 59 mils
Fig. 6
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H1344
Ordering Information
Versions
The versions below are considered standards. For the other delivery form, please contact EM Microelectronic-Marin S.A. Please
make sure to give the complete part number when ordering.
Modulation
(fA1)
Cycle time
(T2)
Pulse
duration (tP)
(CIN)
(COUT)
Alarm Output
Transistor
2s
46.8ms
2048Hz
8Hz
4s
1s
3pF
28pF
NPN
V40
2s
46.8ms
2048Hz
8Hz
4s
1s
3pF
20pF
NPN
V41
2s
23.4ms
2048Hz
8Hz
4s
1s
3pF
20pF
NPN
V47
2s
31.24ms
2048Hz
8Hz
1s
0.5s
3pF
20pF
NPN
V143
*)
2s
46.8ms
--
--
4s
1s
17pF
25pF
--
Delivery Form
Frequency
(FA)
V38
Package
Pulse width
(tw)
H1344V143SO8B
Period (T1)
H1344V38DL8A
H1344V38DLWS11
H1344V40DL8A
H1344V40DLWS11
H1344V41DL8A
H1344V41DLWS11
H1344V47DL8A
H1344V47DLWS11
H1344V143DL8A
H1344V143SO8A
Integrated
Capacitance
Alarm Output
Version
Part Number
Motor
DIL8
Dice
DIL8
Dice
DIL8
Dice
DIL8
Dice
DIL8
8 pin SOIC
8 pin SOIC
Stick
Sawn wafer
Stick
Sawn wafer
Stick
Sawn wafer
Stick
Sawn wafer
Stick
Stick
Tape &
Reel
*) Supply voltage range of 1.4V – 2.8V
EM Microelectronic-Marin SA cannot assume responsibility for use of any circuitry described other than circuitry
entirely embodied in an EM Microelectronic-Marin SA product. EM Microelectronic-Marin SA reserves the right to
change the circuitry and specifications without notice at any time. You are strongly urged to ensure that the
information given has not been superseded by a more up-to-date version.
© EM Microelectronic-Marin SA, 12/04, Rev. C
Copyright © 2004, EM Microelectronic-Marin SA
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