msm62x42b Oki Semiconductor, msm62x42b Datasheet
msm62x42b
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msm62x42b Summary of contents
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... Semiconductor ¡ Semiconductor MSM62X42B REAL TIME CLOCK IC WITH BUILT-IN CRYSTAL DESCRIPTION The MSM62X42B is a bus-connection Micro- computer peripheral Real Time Clock with built-in crystal in the perpetual calendar which can be read and written from a second unit. The interface between this IC and a ...
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... MSM62X42B RANK M62X42B JAPAN xxxxA Lot no. Stability EXTERNAL DIMENSION 16.3 MAX 1. M62X42B ± A: 10PPM ± B: 50PPM 0.35 13 2.58 MAX 12 ¡ Semiconductor xxxxS Stability 20PPM ± B: 50PPM ± Lot no. (UNIT : mm) 0.3MAX ...
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... ADJ bit bit are time counter register are control register MSM62X42B 24/12 bit 64Hz 1 sec carry 1 min carry 1 hour carry C F STD.P 43 ...
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... MSM62X42B REGISTER TABLE Address Register Input Name ...
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... Conditions Ta = 25° –10 to +70°C (25°C standard) ) –40 to +85°C ( ´´ At 4.5V, let "t" make "0" Ta=25° First year Ta=25° 4.5~5.5V DD MSM62X42B Rating Unit – –55 to +85 °C Rating Unit 4 ...
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... MSM62X42B D.C. Characteristics Parameter Symbol "H" Input voltage (1) V IH1 "L" Input voltage (1) V IL1 Input leak current (1) I LK1 Input leak current (2) I LK2 "L" output voltage (1) V OL1 "H" output voltage V OH "L" output voltage (2) ...
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... V V IL1 IL1 IH1 IH1 V V IL1 IL1 4/5 V IH1 IH2 1 0. IL1 IL2 MSM62X42B = 5V ± 10 –40 to +85°C) Min. Max. Unit 1000 — 1000 — 20 — 10 — ns 120 — 100 — 10 — 60 — V IH2 t C1H V IH1 V IL1 ...
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... MSM62X42B WRITE mode (with use of ALE) Parameter CS Set up Time 1 Address Set up Time Address Hold Time ALE Pulse Width ALE Before WRITE WRITE Pulse Width ALE After WRITE Data Set up Time Data Hold Time CS Hold Time 1 RD/WR Recovery Time V IH2 C1S t AS ...
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... IH1 V V IL1 IL1 2.2V 4/5 V IH2 0.8V DD IL2 OL MSM62X42B = 5V ± 10 –40 to +85°C) Min. Max. Unit 1000 — 1000 — 20 — — 120 0 — 60 — V IH2 t C1H V IH1 t RCV " Z " 49 ...
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... MSM62X42B READ mode (with use of ALE) Parameter CS Set up Time 1 Address Set up Time Address Hold Time ALE Pulse Width ALE Before READ ALE After READ RD to Data DATA Hold CS Hold Time 1 RD/WR Recovery Time V IH2 C1S IH1 IL1 ...
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... ALE during "L". If both WR and RD are set at "L" APPLICATION NOTE”. 1 and STD.P Output N-CH MSM62X42B Bit and ALE at the 0 3 =H, RD outputs the =L, these pins 1 0 needs operation related ...
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... MSM62X42B ( Both pins are shorted to V pin (SOP). V • These are a positive power supply pin V FUNCTIONAL DESCRIPTION OF REGISTERS Register names These are abbreviations for Second Month , Year , Year and week. These values are in BCD notation Refer to the Register table for details ...
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... (addresses written, when HOLD bit is always and C is irrespectively performed for the HOLD MSM62X42B Day of Week Sunday Monday Tuesday Wednesday Thursday Friday Saturday to W (addresses and 1 53 ...
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... MSM62X42B c) IRQ FLAG (D ) (Interrupt Request FLAG) 2 This status bit corresponds to "L" or "OPEN" of the STD.P output pin. When STD.P="L", then this bit=1 and when STD.P=OPEN, then this bit=0. This bit indicates that an interrupt has occurred to a microcomputer mainly. When D0 of register C (MASK)=0, then the STD.P output changes from OPEN to " ...
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... Duty CYCLE of "L" level when Period INRPT/STND bit is "0". 1/64 second 1 second 1 minute 1 hour and t 1 (EXAMPLE) WHEN and MASK = PM12:00 MSM62X42B ( 1/2 1/128 1/7680 1/460800 occurs at the moment that a carry 2 PM1:00 OPEN LOW LEVEL OPEN LOW LEVEL and t ...
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... MSM62X42B • The low-level pulse width of the fixed cycle waveform is 7.8125ms independent of t inputs. • The fixed cycle output waveform mode is available for the confirmation of the crystal oscilltor frequency. • During 30 second adjustment a carry can occur that will cause the STD.P output to go " ...
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... IC, for instance, RAM for backup, exists in battery backup circuit, set a bypass capacitor close to it. Maximum value of allowable power supply noise should be 300mV. Start All registers and STD,P output=undefined ¨ 0 ¨ 1 ¨ *1 ¨ 1 *1=*2(= ¨ 0 ¨ *2 ¨ 0 ¨ 0 MSM62X42B = ...
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... MSM62X42B Reading and Writing of Registers S Registers (Addresses Reading and writing in the case of using HOLD bit * In the inside of LSI, the CLEAR of BUSY bit is performed when HOLD bit = 0, but, if the period of HOLD bit =0 is extermely narrow as compared with the period of HOLD bit = 1, there is ...
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... Retried the reading since a carry occurred during the operation. (Note) Do this process within the following time requirements NO by combination between within 1 second = within 1 minute = within 1 hour 1 0 MSM62X42B and ...
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... MSM62X42B Reading mehtod 3 in the cass of not using HOLD bit t ¨ 1 ¨ ITRPT/STND ¨ MASK ¨ REGISTER C READ D IRQ FLAG=1 YES WAIT t TIME DATA READ IRQ FLAG ¨ 0 END Writing 30-Second ADJ bit (Two Ways A, B) START 30-SECOND ADJ BIT ¨ 1 ...
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... DD 4~6V 4V 2~4V 2µs (MIN Less than The interface with this IC is available after this matter of fact, regard this matter as the data holding in the stand-by of STATIC RAM. MSM62X42B From Standby Mode 4V 2µs (MIN ...
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... MSM62X42B Set STD.P at alarm mode Set alarm at 9:00 MASK BIT ITRPT/STND BIT Read Register R 62 ¨ 0 ¨ 1 ¨ Start interruption CPU Activation YES Read H and 10 H Content 9:00? YES CPU HALT or CPU STAND BY ¡ Semiconductor Repeat ...
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... RL M 100W C B 0.01 4.7µF + µ 1.5¥2=3V Dry cells – Ceramic capacitor Tantalum capacitor GND R1 +5. 4.7µ R2 100 Tantalum capacitor 3.6V (Ni–Cd batteries) – between +5V and MSM62 x 42B, use the DD MSM62X42B MSM62X42B MSM62X42B 0.01µ Ceramic MSM62X42B capacitor GND 63 ...
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... ALE Note 1) If the address of program memory and the address of MSM62X42B do not overlap, the S and S of the Decoder are not required Note 2) If the address of IO/MSM62X42B for the decoder does not overlap with other addresses, this is not required. ...
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... Note) It depends upon the switch- 0 ing characteristics decided X’tal used for a Z80 that A 2 either of IORQ and MREQ used ALE ALE RD WR MSM62X42B 65 ...
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... MSM62X42B REFERENCE DATA (1) Frequency vs. Temperature Temp. (°C) –20 – –10 –20 –30 –40 –50 Typical –60 = 25° –0.035ppm/°C –70 (2) Current Consumption vs. Supply Voltage I DD [µA] CS1 = 25° 2.0 (3) Frequency vs. Supply Voltage ...
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... However, be sure to confirm the setting conditions sufficiently for the abovementioned reasons.) 4. Please keep parts free from dew. MSM62X42B , open " ...