R 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. ! ! ! ! ! ! Applications ! ! Analog clocks ! ! ! ! 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 Copyright © 2004, EM Microelectronic-Marin SA 1 www.emmicroelectronic.com R 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. Copyright © 2004, EM Microelectronic-Marin SA 2 www.emmicroelectronic.com R 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 Copyright © 2004, EM Microelectronic-Marin SA 3 www.emmicroelectronic.com R 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 Copyright © 2004, EM Microelectronic-Marin SA 4 www.emmicroelectronic.com R 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 Copyright © 2004, EM Microelectronic-Marin SA 5 www.emmicroelectronic.com R 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 6 www.emmicroelectronic.com