H1344 Datasheet, PDF (2/6 Pages) EM Microelectronic - MARIN SA – CMOS Circuit for Analog Quartz Clocks with Bipolar Stepping Motor Drive

R
H1344
Absolute Maximum Ratings
Parameter
Symbol
Min.
Max. Units
Supply voltage range
V_DD –V_SS
-0.3
+5
V
Input voltage
V_IN
V_SS
V_DD
V
Storage temperature
T_STOR
-55
+125 °C
Table 1
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.
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.
Recommended Operating Conditions
Parameter
Ambient temperature
Quartz frequency
Quartz series resistance
Motor coil resistance
Positive supply
Negative supply
Symbol
T
F_Q
R_Q
R_M
V_DD
V_SS
Value
25
32768
30
200
1.55
0
Units
°C
Hz
kΩ
Ω
V
V
Table 2
Operating Conditions
Parameter
Symbol Min. Typ. Max. Units
Operating temperature T_OPR
Quartz series resistance
Trimmer capacitance
C_TR
-20 ₃₀ +70 °C
50 kΩ
1.5
30 pF
Table 3
Electrical and Switching Characteristics
at recommended operating conditions (valid unless otherwise specified)
Parameter
Symbol
Supply voltage
Supply current
V_DD I_DD
Motor Output
Current into load
I_M
Pulse period
T₁
Pulse width
t_w
Alarm Output
Frequency
Modulation
Cycle time
Pulse duration
Output current for
driving NPN-transistor
Output current for
driving PNP-transistor
f_A
f_A1
t₂
t_P
I_ALOUTN
I_ALOUTN
I_ALOUTN
I_ALOUTN
Alarm Input
Test In/Output
Alarm input delay
t_ALD
Test frequency
f_T
Input current (alarm)
I_IN
Input current
I_IN
Oscillator
Build-up time
Stability against
voltage variation
Output capacitance
Input capacitance
supply
t_START
!f
! V_DD xf
C_OUT
C_IN
∗_{: See “Available options” on page 6.}
Test
operating
without, AL_IN open
V_DD = 1.2V, R_M=200Ω
V_DD=1.2V, V_OL = 0.2V
V_DD=1.2V, V_OH = 0.7V
V_DD=1.2V, V_OL = 0.5V
V_DD=1.2V, V_OH = 1.0V
Min.
+1.1
Typ.
0.7
Max.
+1.8
2.0
Units
V
µA
±4.0
Mask option^∗
mA
s
Mask option^∗
ms
Mask option^∗
Hz
Mask option^∗
Hz
Mask option^∗
s
Mask option^∗
s
0.5
µA
0.3
mA
0.3
mA
0.5
µA
125
Input at V_SS, V_DD = 1.4V
-1
Input at V_DD
1
1024
-5
15
570
ms
Hz
-10
µA
30
µA
V_DD = 1.2V
1.1V≤V_DD≤1.8V
5
Mask option^∗
Mask option^∗
2
s
12
ppm/V
pF
pF
Table 4
Copyright © 2004, EM Microelectronic-Marin SA
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