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EM MICROELECTRONIC - MARIN SA
H1137
CMOS circuit for Analog Quartz Watches
Description
The H1137 is a low power 32kHz analog watch chip designed to drive a stepping motor. Motor pulse width is programmable from 0.9765 to 14.65 milliseconds in steps of 0.9765 milliseconds. Motor pulse period is programmable from 2 x 1 to 2 x 60 seconds in steps of 1 second. Motor pulse period is also programmable from 2 x 0.25 to 2 x 15.75 seconds in steps of 0.25 seconds. Input and output capacitors are integrated on the chip. Their values are metal mask selectable. The selection of width, period and capacitance are metal options and do not require additional bonds.
Features
32Hz quartz oscillator Operating voltage range - 1.2V to -1.8V High oscillator stability Integrated capacitors, mask selectable Mask options for pad designation, motor period and motor pulse width Shorted motor coil between motor pulses Fast motor test function ESD protected terminals 512Hz output on TEST pad for quartz frequency measurement Fully debounced TEST input and RESET input
Application
Analog watches
Functional Diagram
CROWN VN VN RESET VP
Pin Assignment
8 10
7
6
5
H1137
2 3 4
VP
MOT1
CTR
H1137 OSCIN MOT2
RL (Stepping Motor)
1
OSCOUT
VP
VP
Operating range of Trimmer Capacitance: 3pF CTR 30 pF
Pad VN VP OSCIN OSCOUT MOT1 MOT2 RESET TEST Fig. 1
Function Negative supply voltage Positive supply voltage Oscillator input Oscillator output Motor drive output 1 Motor drive output 2 Reset input Test input/output
Pad location 1 5 3 4 7 6 2 or 8 2 or 8 or 10 Fig. 2
Copyright (c) 2004, EM Microelectronic-Marin SA
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H1137
Absolute Maximum Ratings
Parameter Symbol Supply voltage VN Voltage applied to other terminals Storage temTSTOR perature Min. -3.6 VN -0.3 -55 Typ. Max. +0.2 VP +0.3 +125 Units V V C
Handling 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.
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.
Recommended Operating Conditions
Parameter Ambient temperature Quartz frequency Quartz series resistance Motor coil resistance Positive supply Negative supply Supply source resistance Symbol T fQ RQ RM VP VN RI Value 25 32768 30 2.0 0 -1.55 10 Units C Hz k k V V
Operating Conditions
Parameter Operating temperature Quartz series resistance Trimmer capacitance Symbol TOPR CTR Min. -10 3 Typ. 30 Max. +60 50 30 Units C k pF
Electrical and Switching Characteristics
at recommended operating conditions unless otherwise specified Parameter Supply voltage range Mean dynamic current Mean current consumption Oscillator Transconductance Starting voltage Starting time Stability df / f*dVN Motors Drivers Voltage across motor Voltage across motor Voltage across motor Short circuit impedance Test Input / Output Amplitude Mean current Reset Input Debounce delay Input current after debounce delay* Symbol VN IDYN IN gm VST TST VMOT VMOT VMOT RCC VTST ITST TS IS Test Conditions Without motor and quartz, 32kHz inverted square wave forced at OSCIN and OSCOUT, TEST open With quartz, without motor, TEST open, CTR = 12 pF VN = 1.2V, VPP = 300mV Within 10 seconds Recommended operating conditions Between -1.4V and -1.6V VN = -1.55V, RM = 2k VN = -1.25V, RM = 2k RI = 300 , TOPR Between motor pulses ZI = 30pF // 1M Pad connected to VP Pad connected to VP 2.5 0.75 2 1.5 1.35 1.0 1.0 1.35 70 7.81 7 250 23.43 50 1.40 1.10 1.20 150 Min. -1.8 Typ. -1.55 90 200 Max. -1.2 150 350 Units V nA nA mho V s ppm/V V V V VPP nA ms nA
300
* Is the average input current, modulated by a frequency of 64 Hz
Copyright (c) 2004, EM Microelectronic-Marin SA
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H1137
Timing Waveforms
Motor drive output in normal operation RESET MOT1 MOT2 VN VP VN
tm TM TM/2
VP VN VP VN
TEST
TTST = 1.953 ms (512Hz output)
Motor drive output and reset
<7.81ms
RESET
debounce delay
>23.43ms
VN VP VN
TM/2
MOT1 MOT2
VP VN VP VN
TEST
TTST = 1.953 ms (512Hz output)
Fast motor test mode, TEST = VP
2.93 ms T 65.43 ms (16 Hz) 2.93 ms T 34.18 ms (32 Hz)
TEST MOT1 MOT2
TM/2 62.50ms or 31.25ms tm
VP VN VP VN VP VN
Fig. 3
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H1137
Block Diagram
P u ls e W id th D iv id e r O s c illa to r In itia l D iv id e r D iv id e r 1 H z
O S C IN
O S C OUT
M o to r L o g ic
P u ls e R e p e titio n D iv id e r
T e s t L o g ic
M o to r D r iv e r
M a s te r R e s e t
TEST
MOT1
MOT2
RESET
Fig. 4
Pin Assignments
Name VN VP OSCIN OSCOUT MOT1 MOT2 RESET TEST Function Negative supply voltage Positive supply voltage Oscillator input Oscillator output Motor drive output 1 Motor drive output 2 Reset input Test input / output
Test mode The TEST pad fulfils two functions: a) For normal operation, the TEST pad is left open. The circuit outputs a square wave signal of 512Hz which can be used for tuning the oscillator. b) If the TEST pad is connected to VP, the period for the motor pulses changes to either 2 x 31.25 ms or 2 x 62.5 ms (mask options), while the motor pulse width remains unchanged (fast motor test). Test
Functional Description
Oscillator The 32'768Hz clock frequency is generated by a crystal oscillator. Input and output capacitors are integrated in the chip. Their values are metal mask selectable. Motor drive output The H1137 contains two push-pull output buffers for driving bipolar stepping motors (see Fig. 3). Between two pulses, the two p-channel devices are active for motor damping. Reset Pulling the RESET input to VP resets the frequency dividers and disables the motor pulses. Motor pulses in progress when the RESET function is applied, will be completed. After releasing the RESET pad from VP, the next motor pulse appears with a delay of one half motor cycle on the drive output MOT1 if the last motor pulse appeared on MOT2 or vice-versa (see Fig. 3). Due to the debounce circuitry on the RESET input, VP must be applied for at least 23.4 ms to be accepted as RESET.
Test Pad Connected to VP Open
Function Fast motor test Normal operation
Description Increase the frequency for the motor pulses to 16Hz (32Hz) Output of square wave signal (512Hz)
Test configuration
VP RL Reset RESET MOT1 MOT2 VP OSCOUT VP
H1137 Test TEST
VN
CTR
VN VP Operating range of Trimmer Capacitance: 3pF CTR 30 pF
OSCIN
Fig. 5
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H1137
Metal Mask Option Possibilities
Motor pulse and capacitance
Symbol TM TM tm CIN COUT Range Range Range min. max. resolut. Description Motor pulse period 1.00s 2x1.00s 2x60.00s Fast motor TEST 2x31.25ms 2x62.50ms Motor pulse width 0.9765ms 14.65ms 0.9765ms Oscillator input capacity 1pF 2pF CIN + COUT =35pF Oscillator output capac. 1pF 2.7pF
Pad options
SymDescription bol TEST Pad TEST RESET Pad RESET Pad Layout 1 Pad 10 Pad 8 Pad 2 not used Pad Layout 2 Pad 2 Pad 8 Pad 10 not used Pad Layout 3 Pad 8 Pad 2 Pad 10 not used
Possible versions
Motor Output Period s H1137V01 H1137V02 H1137V03 H1137V04 H1137V05 H1137V07 H1137V08 H1137V09 H1137V10 H1137V11 H1137V12 H1137V13 H1137V14 H1137V15 H1137V16 H1137V17 H1137V19 H1137V20 H1137V21 H1137V22 H1137V23 H1137V24 H1137V25 H1137V26 H1137V27 H1137V28 H1137V51 H1137V52 H1137V53 H1137V54 H1137V58 2x12 2x1 2x10 2x12 2x1 2x10 2x12 2x1 2x1 2x12 2x1 2x12 2x1 2x1 2x1 2x5 2x20 2x20 2x1 2x1 2x1 2x10 2x5 2x20 2x0.5 2x40 2x5 2x5 2x1 2x20 2x10 Pulse Width ms 6.8 3.9 7.8 5.9 6.8 5.9 6.8 7.8 3.9 5.9 6.8 6.8 4.9 6.8 5.9 5.9 7.8 5.9 4.9 3.9 5.9 6.8 7.8 6.8 4.9 5.9 4.9 7.8 3.9 4.9 4.9
Option list (supply voltage -1.55V)
Options Integrated capacitor Fast Mode ms 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x31.25 2x62.5 2x62.5 2x31.25 2x31.25 2x31.25 2x31.25 2x31.25 OSCIN pF 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 OSCOUT pF 18 14 22 14 14 16 14 20 14 14 14 14 16 20 14 14 14 14 14 20 20 14 20 14 14 14 23 23 23 23 25 Pad 1 VN Vn VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN VN Pad 2 TEST RESET TEST TEST RESET TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST RESET Pad 3 OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN OSC IN Designation pad Pad 4 OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT OSCOUT Pad 5 VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP VP Pad 6 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 MOT2 Pad 7 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 MOT1 Pad 8 RESET RESET TEST RESET RESET TEST RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET RESET TEST Pad 10 TEST TEST TEST TEST TEST Compatible EUROSIL E1208 A B C D E G H IS K L M N O P S T V WA WB WD WE WF WG WH
Version
Ordering Information
For other versions, please contact EM Microelectronic-Marin S.A. Please make sure to give the complete part number when ordering.
H1137 WW 11 - %%%
Customer Version: customer-specific number given by EM Microelectronic
Thickness: 11 = 11 mils (280um) 27 = 27 mils (686um) (for other thickness, contact EM)
Die form: WW = Wafer WS = Sawn Wafer/Frame WP = Waffle Pack
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H1137
Chip Information
1165 836 456 74
8
7
6
5
327
H1137 V nn 1) 1 2 3 4
219
48 298 905 162 1177 1549
All dimensions in microns
1)
nn stands for the version
1245
Fig. 6
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.
(c) EM Microelectronic-Marin SA, 11/04, Rev. A
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