R EM MICROELECTRONIC - MARIN SA H1137 CMOS circuit for Analog Quartz Watches Description Features 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. 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 Pin Assignment CROWN VN VN RESET VP 8 7 10 VP MOT1 CTR H1137 OSCIN OSCOUT 1 RL (Stepping Motor) MOT2 VP Pad VN VP OSCIN OSCOUT MOT1 MOT2 RESET TEST VP Operating range of Trimmer Capacitance: 3pF CTR 30 pF 5 H1137 2 Function Negative supply voltage Positive supply voltage Oscillator input Oscillator output Motor drive output 1 Motor drive output 2 Reset input Test input/output 3 4 Pad location 1 5 3 4 7 6 2 or 8 2 or 8 or 10 Fig. 2 Fig. 1 Copyright (c) 2004, EM Microelectronic-Marin SA 6 1 www.emmicroelectronic.com R H1137 Absolute Maximum Ratings Parameter Symbol Supply voltage VN Voltage applied to other terminals Storage temTSTOR perature Min. -3.6 Handling Procedures Typ. VN -0.3 -55 Max. +0.2 Units V VP +0.3 +125 V C 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 Operating Conditions Units C Hz k k V V Parameter Operating temperature Quartz series resistance Trimmer capacitance Symbol TOPR Min. -10 Typ. 30 3 CTR Max. +60 50 30 Electrical and Switching Characteristics at recommended operating conditions unless otherwise specified Parameter Supply voltage range Mean dynamic current Symbol VN IDYN Mean current consumption IN 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* gm VST TST Test Conditions Min. -1.8 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 2.5 VMOT VMOT VMOT RCC VN = -1.55V, RM = 2k VN = -1.25V, RM = 2k RI = 300 , TOPR Between motor pulses 1.35 1.0 1.0 VTST ITST ZI = 30pF // 1M Pad connected to VP 1.35 TS IS Pad connected to VP Typ. -1.55 90 Max. -1.2 150 Units V nA 200 350 nA 1.5 mho V s ppm/V 1.40 1.10 1.20 150 300 V V V 70 250 VPP nA 7 23.43 50 ms nA 0.75 2 7.81 * Is the average input current, modulated by a frequency of 64 Hz Copyright (c) 2004, EM Microelectronic-Marin SA 2 www.emmicroelectronic.com Units C k pF R H1137 Timing Waveforms Motor drive output in normal operation RESET VN MOT1 VP VN MOT2 VP VN TM/2 tm TM VP VN TEST TTST = 1.953 ms (512Hz output) Motor drive output and reset <7.81ms RESET VN >23.43ms debounce delay MOT1 VP VN MOT2 VP VN TM/2 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 VP VN MOT1 VP VN MOT2 VP VN 62.50ms or 31.25ms TM/2 tm Fig. 3 Copyright (c) 2004, EM Microelectronic-Marin SA 3 www.emmicroelectronic.com R H1137 Block Diagram O s c illa to r O S C IN P u ls e W id th D iv id e r In itia l D iv id e r O S C OUT P u ls e R e p e titio n D iv id e r M o to r L o g ic T e s t L o g ic TEST D iv id e r 1 H z M o to r D r iv e r MOT1 M a s te r R e s e t 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. Function Fast motor test Description Increase the frequency for the motor pulses to 16Hz (32Hz) Open Normal operation Output of square wave signal (512Hz) Test configuration VP VP RL OSCOUT VN OSCIN H1137 MOT2 MOT1 RESET 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. VP Reset TEST 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. Test Pad Connected to VP Test CTR VN VP Operating range of Trimmer Capacitance: 3pF CTR 30 pF Fig. 5 Copyright (c) 2004, EM Microelectronic-Marin SA 4 www.emmicroelectronic.com R H1137 Metal Mask Option Possibilities Motor pulse and capacitance Pad options Symbol TM TM tm CIN COUT SymDescription bol TEST Pad TEST RESET Pad RESET 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 Possible versions 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 Option list (supply voltage -1.55V) Options Version 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 Integrated capacitor Motor Output 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 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 Designation pad OSCIN pF OSCOUT pF Pad 1 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 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 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 Pad 3 Pad 4 Pad 5 Pad 6 Pad 7 Pad 8 Pad 10 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 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 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 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 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 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 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 TEST TEST TEST TEST TEST - 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 Copyright (c) 2004, EM Microelectronic-Marin SA 5 www.emmicroelectronic.com 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 R H1137 Chip Information 1165 836 456 74 5 6 800 10 1245 7 8 327 H1137 V nn 1) 2 3 4 219 1 48 298 905 162 1177 1549 All dimensions in microns 1) nn stands for the version 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 Copyright (c) 2004, EM Microelectronic-Marin SA 6 www.emmicroelectronic.com