MSM6051 OKI | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 7

Technical content

¡ Semiconductor GENERAL DESCRIPTION The MSM6051 is a low-power microcontroller manufactured in complementary metal-oxide semiconductor technology. Integrated into a single chip are ROM, RAM, crystal oscillator, voltage doubler, timer, melody circuit, LCD driver, input port, and output port. Using the on-chip ROM for application code reduces power consumption. The MSM6051 is widely used in electronic products requiring low-power operation, such as stopwatches with lap time memory, calculator watches, and handy terminals.

FEATURES

  • Low power consumption
  • Internal ROM : 2560 ¥ 14 bits
  • Internal RAM : 120 ¥ 4 bits
  • Input port : 2 ports ¥ 4 bits, 1 port ¥ 1 bit
  • Output port : 1 port ¥ 4 bits
  • 4 ¥ 4 key matrix input is available by using K1 to K4 and M1 to M4
  • 66 LCD drivers (including 3 commons) (1/3 duty, 1/3 bias, 189 segments)
  • 59 instructions
  • Minimum instruction execution time : 91.5 ms (Display instruction cycle : 183 ms)
  • 1.5 V operating voltage (Can be changed to the lithium battery version by mask option)
  • Melody function : Up to 512 notes can be played automatically (with an envelope)
  • Lamp drivers
  • Crystal oscillator : 32.768 kHz
  • Chip (102 pads) ¡ Semiconductor MSM6051 Built-in Melody Circuit and LCD Driver 4-Bit Microcontroller E2E0009-38-94 This version: Sep. 1998 Previous version: Mar. 1996

¡ Semiconductor BLOCK DIAGRAM MELODY CIRCUIT OUTPUT PORT (M1to M4) INPUT PORT (K1 to K4) INPUT PORT (S1 to S4) TIMING GENERATOR Z ALU ACC Main A REGISTER DIN0 to DIN3 DOUT0 to DOUT3 A4 to A6 A0 to A3 DATA RAM 120 ¥ 4 bits FMT REGISTER MPX MPX MPX PRO- GRAM COUN- TER DOUT13 to DOUT0 to A11 PROGRAM ROM 2560 ¥ 14 bits INSTRUC- TION DECODER DISPLAY LATCH and DRIVER VDD VSS1 VSS2 VSS3 VEE VCP VCM RESET T1 T2 T3 T4 T5 32Hz BD M1 to M4 XT XT SEGMENT OUT 1 to SEGMENT OUT 66 MPX P REG INT P REG MAIN ACC Inter- rupt C G Z C G XTOUT AC2 LAMP DRIVER LD MPX STACK PIT REGISTER OPIN INPUT PORT (OPTION) Main Interrupt K1 to K4 S1 to S4

¡ Semiconductor PAD CONFIGURATION Pad Layout SEG66 VDD XT XT XTOUT AC2 LO SEG1 VEE SEG35 OPIN VDD VSS2 VSS3 VCP VCM VSS1 BD LD RESET 32Hz SEG33 SEG34 SEG65 SEG2 SEG64 SEG3 SEG63 SEG4 SEG62 SEG5 SEG61 SEG6 SEG60 SEG7 SEG59 SEG8 SEG58 SEG9 SEG57 SEG10 SEG56 SEG11 SEG55 SEG12 SEG54 SEG13 SEG53 SEG14 SEG52 SEG15 SEG51 SEG16 SEG50 SEG17 SEG49 SEG18 SEG48 SEG19 SEG47 SEG20 SEG46 SEG21 SEG45 SEG22 SEG44 SEG23 SEG43 SEG24 SEG42 SEG25 SEG41 SEG26 SEG40 SEG27 SEG39 SEG28 SEG38 SEG29 SEG37 SEG30 SEG36 SEG31 SEG32 Chip size: 5.85 ¥¥¥¥¥ 4.10 (mm)

¡ Semiconductor PIN DESCRIPTIONS Symbol

Description

Circuit ground potential. VSS1 Power source (–1.5 V). VSS2 Power source for LCD driver (–3.0 V). This pin is connected to the VDD pin through a 0.1 mF capacitor. VSS3 Power source for LCD driver (–4.5 V). This pin is connected to the VDD pin through a 0.1 mF capacitor. VEE Power source for internal logic (–1.5 to –3.0 V). This pin is connected to the VDD pin through a 0.1 mF capacitor. VCP, VCM Booster capacitor connection pins. VCP pin is connected to VCM pin through a 0.1 mF capacitor. XT, XT Input and output pins of oscillator inverter. 32.768 kHz crystal is connected to these pins. T1 to T5 Pins to test internal logic. T1, T2, T4, and T5 are pulled down to VSS1. T3 is an output. The test pins are normally open. RESET Pin to clear internal logic pulled down to VSS1. After power is turned on, the MSM6051 can be reset by this pin. BD Buzzer output. LD Lamp output. LO Load data pin of M1 to M4. AC2 Reset pin for external circuit. XTOUT Clock output for external circuit.

¡ Semiconductor ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Unit Rating Power Supply Voltage VSS1-VDD Ta = 25°C V –2.0 to +0.3 Input Voltage VIN Ta = 25°C V VSS1 – 0.3 to +0.3 Operating Temperature Top –20 to +75 Storage Temperature TSTG –55 to +125

ELECTRICAL CHARACTERISTICS

(VDD = 0 V, VSS1 = VEE = –1.55 V, VSS2 = –3.0 V, VSS3 = –4.5 V, Cl = 30 kW, Ta = 25°C) Parameter Symbol Condition Min. Typ. Max. Unit VSS1 pin VSS1 pin (Refer to Measuring Circuit) –VSS1 1.25 1.55 1.65 V IDD 3.0 mA –VOSC 1.45 V IOL3 –10 mA –500 IOL4 VSS1 Operating Voltage Power Supply Current Oscillation Start Voltage Output Current 1 COM 1 to 3 Output Current 3 LO VOH3 = –0.5 V VOH4 = –0.5 V VOL4 = –1.0 V VOL3 = –1.15 V IOH4 IOH3 Output Current 4 M1 to M4 Output Current 5 LD Within 5 seconds, VSS1 pin (Refer to Measuring Circuit) mA mA mA mA IOH1 IOMH1 IOML1 IOL1 IOH2 IOMH2 IOML2 IOL2 VOH1 = –0.2 V VOMH1 = VSS1 ±0.2 V VOML1 = VSS2 ±0.2 V VOL1 = –4.3 V VOH2 = –0.2 V VOMH2 = VSS1 ±0.2 V VOML2 = VSS2 ±0.2 V VOL2 = –4.3 V Output Current 2 SEGMENT IOH5 –12.5 VOH5 = –0.55 V –25 –82.5 IOL5 VSS1 = –1.25 V VEE = –2.0 V VSS2 = –2.0 V VOL5 = –0.85 V Output Current 6 BD mA IOH6 –17.2 VOH6 = –0.55 V –30 –51.5 IOL6 VOL6 = –0.85 V VSS1 = –1.25 V VEE = –2.0 V VSS2 = –2.0 V 100 VIH1 = 0 V IIH1 Input Current 1 S1 to S4 mA VIL1 = –1.55 V IIL1 –0.2 VIH2 = 0 V IIH2 Input Current 2 K1 to K4 mA VIL2 = –1.55 V IIL2 –0.2 VIH3 = 0 V IIH3 Input Current 3 OPIN mA VIL3 = –1.55 V IIL3 –0.2 CD Built-in CD Capacitance pF The typ. value varies depending on the application program.

¡ Semiconductor Measuring circuit A XT VSS1 VDD V Crystal 32.768 kHz VEE VSS2 VSS3 C1, C2, C3, C4 : 0.1 mF C5 : 30 pF VCP VCM XT MSM6051

¡ Semiconductor APPLICATION CIRCUIT BD VSS1 VDD VEE Crystal 32.768 kHz VSS3 VCP VCM SEGMENTS LCD MSM6051 LD Lamp L B RESET VSS2 XT (CD = 20 pF) XT C2 to C5 B L : 5 to 35 pF : 0.1 mF : 1.5 V : 20 mH COM1 to COM3