E2E0020-38-95 ¡ Semiconductor MSM6546/6546L ¡ Semiconductor This version: Sep. 1998 MSM6546/6546L Previous version: Mar. 1996 Operatable at 0.9 V and Built-in LCD Driver 4-Bit Microcontroller GENERAL DESCRIPTION MSM6546/6546L is a 4-bit, low-power microcontroller manufactured in a CMOS silicon gate process. The microcontroller can be initialized and operated at the low supply voltage of 0.9 V. This device contains a crystal oscillator circuit, voltage converter circuits, a time base counter, a ROM, a RAM, a stack RAM, I/O ports, interrupt function components, a serial I/O port, a buzzer output circuit, an up/down counter, and LCD drivers. This IC can be driven by one battery and is well suited to products that need to be operated with low power consumption. FEATURES • The IC can be initialized and operated even at a low voltage of 0.9 V. • Low power consumption • ROM : 4096 words ¥ 17 bits • RAM : 256 words ¥ 4 bits • I/O port Input/output port : 7 ports ¥ 4 bits Input port : 1 port ¥ 4 bits • Interrupt functions (real-time interrupt, external interrupt, and serial interrupt) • Serial I/O port : 8-bit sync communication • Buzzer output circuit • 4-bit decimal up/down counter • 54 LCD drivers (up to 200 segments can be displayed) • 75 instructions • Minimum instruction execution time : 61 ms • Operation under single 1.5 V power supply (MSM6546) A mask option allows the 3 V power supply to be used (MSM6546L). • Built-in 32.768 kHz crystal oscillator circuit • Package: 100-pin plastic QFP (QFP100-P-1420-0.65-BK) : (Product name : MSM6546-xxGS-BK, MSM6546L-xxGS-BK) Chip ¥¥ indicates a code number. 1/16 PORT5 PORT4 PORT3 PORT2 PORT1 PORT0 P5.3 P5.2 P5.1 P5.0 P4.3 P4.2 P4.1 P4.0 P3.3 P3.2 P3.1 P3.0 P2.3 P2.2 P2.1 P2.0 P1.3 P1.2 P1.1 P1.0 P0.3 P0.2 P0.1 P0.0 PCZIOX PCHZX0 PCIOX0 PCHZ0 PCIO0 SYSTEM CLOCK GENERATOR SCND1 EIF INSTRUCTION DECODER INSTRUCTION REGISTER 4096 ¥ 17 bits IRQEX STACK RAM ADRS ADDER IRQSIO WORK RAM (256 ¥ 4 bits) PNEX PAGE INTERRUPT CONTROL FIEX SBFFL SBFFH IRQRT PROGRAM ROM EIRT SERIAL I/O SCND0 PRIO VOLTAGE REGULATOR LCD DRIVER BUZZER MDTL ALU ACC MPX MDTH S-bus LCDCNT XTB MODE TMOUT TIME BASE COUNTER SIN SOUT SCKL D-BUS OSC PORT6 P6.3 P6.2 P6.1 P6.0 4-Bit BCD COUNTER CCNT PGCONH PGCONL TEMPO XT PORT7 P7.3 P7.2 P7.1 P7.0 CCLK BU/D SEG53 SEG0 BD VCP VCM VDD VSS1 VSS2 VSS3 VEE A-bus ¡ Semiconductor MSM6546/6546L BLOCK DIAGRAM FLAG FRMT PROGRAM COUNTER 2/16 ¡ Semiconductor MSM6546/6546L 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 TEST1 RESET P4.3 P4.2 P4.1 P4.0 P3.3 P3.2 P3.1 P3.0 P2.3 P2.2 P2.1 P2.0 P1.3 P1.2 P1.1 P1.0 P0.3 P0.2 PIN CONFIGURATION (TOP VIEW) 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 P0.1 P0.0 SEG53 SEG52 SEG51 SEG50 SEG49 SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 P5.0 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 P7.2/BU/D P7.1/SIN P7.0/SOUT P6.3/SCLK P6.2 P6.1 P6.0 XTB XT VDD VSS1 VCM VCP VSS2 VSS3 VEE BD P5.3 P5.2 P5.1 TEST2 TEST3 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 P7.3/CCLK 100-Pin Plastic QFP 3/16 ¡ Semiconductor MSM6546/6546L PIN DESCRIPTIONS Symbol PORT0 (P0.0 to P0.3) PORT1 (P1.1 to P1.3) PORT2 (P2.0 to P2.3) PORT3 (P3.0 to P3.3) PORT4 (P4.0 to P4.3) PORT5 (P5.0 to P5.3) PORT6 (P6.0 to P6.3) PORT7 (P7.0 to P7.3) Type Description I/O 4-bit input-output port, I/O switchable, with/without input pull-down resistor I/O 4-bit input-output port, I/O switchable, with/without input pull-down resistor I/O 4-bit input-output port, I/O switchable, with/without input pull-down resistor External interrupt port I/O 4-bit input-output port, I/O switchable, with/without input pull-down resistor I/O 4-bit input-output port, I/O switchable, with/without input pull-down resistor I/O 4-bit input-output port, I/O switchable, with/without input pull-down resistor I/O 4-bit input-output port, I/O switchable, with/without input pull-down resistor 4-bit input port I Tie to the negative pole of the battery when not used. BD O Buzzer output pin RESET I Reset pin with input pull-down resistor TEST1 TEST2 P2.0 to P2.3 I TEST3 P6.3: SCLK P7.0: SOUT P7.1: SIN Shared with serial port P7.2: BU/D Shared with 4-bit P7.3: CCLK up/down counter Testing pins with input pull-down resistor; Tie to the negative pole of the battery. XT I XTB O VDD — 0 V power supply pin VSS1 — –1.5 V supply pin (power supply pin for –1.5 V operation) VSS2 — –3.0 V supply pin (power supply pin for –3.0 V operation) VSS3 — –4.5 V supply pin — Connection pins for internal potential development capacitor VEE — Supply pin for internal logic (constant voltage circuit output pin) SEG0 to SEG53 O LCD driver VCP VCM Connection pins for crystal oscillator 4/16 ¡ Semiconductor MSM6546/6546L ABSOLUTE MAXIMUM RATINGS (MSM6546, 1.5 V, BUF = "0") Parameter Symbol Condition Rating Power Supply Voltage (1) VSS1 –4.0 to +0.3 Power Supply Voltage (2) VSS2 –7.0 to +0.3 Power Supply Voltage (3) VSS3 Input Voltage VIN –7.0 to +0.3 Ta = 25°C VSS1 – 0.3 to +0.3 Output Voltage (1) *1, *2 VO1 VSS1 – 0.3 to +0.3 Output Voltage (2) *2 VO2 VSS2 – 0.3 to +0.3 Output Voltage (3) *2 VO3 Storage Temperature TSTG Unit V VSS3 – 0.3 to +0.3 — –55 to +125 °C *1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2). RECOMMENDED OPERATING CONDITIONS (MSM6546, 1.5 V, BUF = "0") VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Symbol Condition Range Unit Vop — –1.75 to –0.9 V Operating Temperature Top — –20 to +70 °C Oscillation Frequency fOSC — 32.768 kHz Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2). 5/16 ¡ Semiconductor MSM6546/6546L ELECTRICAL CHARACTERISTICS (MSM6546, 1.5 V, BUF = "0") (VDD = 0 V, VSS1 = –1.5 V (battery voltage) , VSS2 = –3.0 V, VSS3 = –4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25°C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Output Current 3 (Common Segment Output) Symbol Condition IDD *1 –VOSC –IOH1 — 3 — mA Within 2 seconds — — 0.9 V VO = –0.5 V 150 — — IOL1 VO = –1.0 V 150 — — –IOH2 VO = –0.5 V 20 — — IOL2 VO = –1.0 V 20 — — mA mA Á–IOH3 Á VOH = –0.2 V 4 — — Á–IOMH3 Á VOMH = VSS1 ±0.2 V 4 — — –IOML3 VOML = VSS2 ±0.2 V 4 — — –IOL3 VOL = –4.3 V 4 — — 7 15 30 mA — — 1 mA 70 250 500 mA — — 0.3 1.2 — — Input Current 1 IIH1 Input Leakage Current ÁIIL Á Input Current 3 IIH3 Input Voltage Min. Typ. Max. Unit Applied Pin –VIH –VIL VI = 0 V, in the input state, with pull-down resistor VI = 0 V, –1.5 V, in the input state, without pull-down resistor VI = 0 V, with pull-down resistor — mA V — VSS1 PORT0 to PORT6*2 SOUT, SCLK BD SEG0 to SEG53 PORT0 to PORT6 *2 PORT0 to PORT7*2 SIN, SOUT, SCLK RESET TEST1 to TEST3 All input pins *1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2). 6/16 ¡ Semiconductor MSM6546/6546L ABSOLUTE MAXIMUM RATINGS (MSM6546, 1.5 V, BUF = "1") Parameter Symbol Condition Rating Power Supply Voltage (1) VSS1 –4.0 to +0.3 Power Supply Voltage (2) VSS2 –7.0 to +0.3 Power Supply Voltage (3) VSS3 –7.0 to +0.3 Input Voltage VIN Ta = 25°C VSS1 – 0.3 to +0.3 Output Voltage (1) *1, *2 VO1 VSS1 – 0.3 to +0.3 Output Voltage (2) *2 VO2 VSS2 – 0.3 to +0.3 Output Voltage (3) *2 VO3 Storage Temperature TSTG Unit V VSS3 – 0.3 to +0.3 — –55 to +125 °C *1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is directly connected to the power supply (VSS1). RECOMMENDED OPERATING CONDITIONS (MSM6546, 1.5 V, BUF = "1") VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Symbol Condition Range Unit Vop — –1.75 to –0.9 V Operating Temperature Top — –20 to +70 °C Oscillation Frequency fOSC — 32.768 kHz Note: The input of the constant voltage circuit is directly connected to the power supply (VSS1). 7/16 ¡ Semiconductor MSM6546/6546L ELECTRICAL CHARACTERISTICS (MSM6546, 1.5 V, BUF = "1") (VDD = 0 V, VSS1 = –1.5 V (battery voltage) , VSS2 = –3.0 V, VSS3 = –4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25°C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Symbol Condition Min. Typ. Max. Unit Applied Pin IDD *1 — 1.5 — mA — –VOSC Within 2 seconds — — 0.9 V VSS1 –IOH1 VO = –0.5 V 150 — — IOL1 VO = –1.0 V 150 — — –IOH2 VO = –0.5 V 20 — — IOL2 VO = –1.0 V 20 — — –IOH3 VOH = –0.2 V 4 — — Output Current 3 Á–IOMH3 Á VOMH = VSS1 ±0.2 V 4 — — (Common Segment Output) Á–IOML3 Á VOML = VSS2 ±0.2 V 4 — — –IOL3 VOL = –4.3 V 4 — — 7 15 30 Input Current 1 Input Leakage Current Input Current 3 Input Voltage IIH1 ÁIIL Á IIH3 –VIH –VIL VI = 0 V, in the input state, with pull-down resistor VI = 0 V, –1.5 V, in the input state, without pull-down resistor VI = 0 V, with pull-down resistor — mA mA mA mA — — 1 mA 70 250 500 mA — — 0.3 1.2 — — V PORT0 to PORT6*2 SOUT, SCLK BD SEG0 to SEG53 PORT0 to PORT6 *2 PORT0 to PORT7*2 SIN, SOUT, SCLK RESET TEST1 to TEST3 All input pins *1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is directly connected to the power supply (VSS1). 8/16 ¡ Semiconductor MSM6546/6546L ABSOLUTE MAXIMUM RATINGS (MSM6546L, 3.0 V, BUF = "0") Parameter Symbol Condition Rating Power Supply Voltage (1) VSS1 –4.0 to +0.3 Power Supply Voltage (2) VSS2 –7.0 to +0.3 –7.0 to +0.3 Power Supply Voltage (3) VSS3 Input Voltage VIN Output Voltage (1) *2 VO1 VSS1 – 0.3 to +0.3 Output Voltage (2) *1, *2 VO2 VSS2 – 0.3 to +0.3 Output Voltage (3) *2 VO3 Storage Temperature TSTG Unit Ta = 25°C VSS2 – 0.3 to +0.3 V VSS3 – 0.3 to +0.3 — –55 to +125 °C *1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS1). RECOMMENDED OPERATING CONDITIONS (MSM6546L, 3.0 V, BUF = "0") VDD = 0 V (VSS1 = battery voltage) Parameter Operating Voltage Symbol Condition Range Unit Vop — –3.5 to –1.8 V Operating Temperature Top — –20 to +70 °C Oscillation Frequency fOSC — 32.768 kHz Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS1). 9/16 ¡ Semiconductor MSM6546/6546L ELECTRICAL CHARACTERISTICS (MSM6546L, 3.0 V, BUF = "0") (VDD = 0 V, VSS1 = –1.5 V, VSS2 = –3.0 V (battery voltage), VSS3 = –4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25°C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Symbol Condition Min. Typ. Max. Unit Applied Pin IDD *1 — 0.75 — mA — –VOSC Within 2 seconds — — 1.8 V VSS2 –IOH1 VO = –0.5 V 500 — — IOL1 VO = –2.5 V 500 — — –IOH2 VO = –0.5 V 20 — — IOL2 VO = –2.5 V 20 — — mA mA –IOH3 VOH = –0.2 V 4 — — Output Current 3 Á–IOMH3 Á VOMH = VSS1 ±0.2 V 4 — — (Common Segment Output) Á–IOML3 Á VOML = VSS2 ±0.2 V 4 — — –IOL3 VOL = –4.3 V 4 — — 50 100 200 mA — — 1 mA 200 750 1500 mA — — 0.5 2.5 — — Input Current 1 IIH1 Input Leakage Current ÁIIL Á Input Current 3 Input Voltage IIH3 –VIH –VIL VI = 0 V, in the input state, with pull-down resistor VI = 0 V, –3 V, in the input state, without pull-down resistor VI = 0 V, with pull-down resistor — mA V PORT0 to PORT6*2 SOUT, SCLK BD SEG0 to SEG53 PORT0 to PORT6 *2 PORT0 to PORT7*2 SIN, SOUT, SCLK RESET TEST1 to TEST3 All input pins *1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is equal to the output of the voltage converter (VSS2). 10/16 ¡ Semiconductor MSM6546/6546L ABSOLUTE MAXIMUM RATINGS (MSM6546L, 3.0 V, BUF = "1") Parameter Symbol Condition Rating Power Supply Voltage (1) VSS1 –4.0 to +0.3 Power Supply Voltage (2) VSS2 –7.0 to +0.3 Power Supply Voltage (3) VSS3 Input Voltage VIN Output Voltage (1) *2 VO1 VSS1 – 0.3 to +0.3 Output Voltage (2) *1, *2 VO2 VSS2 – 0.3 to +0.3 Output Voltage (3) *2 VO3 Storage Temperature TSTG Unit –7.0 to +0.3 Ta = 25°C V VSS2 – 0.3 to +0.3 VSS3 – 0.3 to +0.3 — –55 to +125 °C *1 Normal output *2 LCD driver output Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2). RECOMMENDED OPERATING CONDITIONS (MSM6546L, 3.0 V, BUF = "1") VDD = 0 V (VSS2 = battery voltage) Parameter Symbol Condition Range Unit Operating Voltage Vop — –3.5 to –0.9 V Operating Temperature Top — –20 to +70 °C Oscillation Frequency fOSC — 32.768 kHz Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2). 11/16 ¡ Semiconductor MSM6546/6546L ELECTRICAL CHARACTERISTICS (MSM6546L, 3.0 V, BUF = "1") (VDD = 0 V, VSS1 = –1.5 V, VSS2 = –3.0 V (battery voltage), VSS3 = –4.5 V, fOSC = 32.768 kHz, CX = 35 pF, Ta = 25°C) Parameter Power Supply Current Oscillation Start Voltage Output Current 1 Output Current 2 Symbol Condition Min. Typ. Max. Unit Applied Pin IDD *1 — 1.5 — mA — –VOSC Within 2 seconds — — 0.9 V VSS2 –IOH1 VO = –0.5 V 500 — — IOL1 VO = –2.5 V 500 — — –IOH2 VO = –0.5 V 20 — — IOL2 VO = –2.5 V 20 — — mA mA –IOH3 VOH = –0.2 V 4 — — Output Current 3 Á–IOMH3 Á VOMH = VSS1 ±0.2 V 4 — — (Common Segment Output) Á–IOML3 Á VOML = VSS2 ±0.2 V 4 — — –IOL3 VOL = –4.3 V 4 — — 50 100 200 mA — — 1 mA 200 750 1500 mA — — 0.5 2.5 — — Input Current 1 IIH1 Input Leakage Current ÁIIL Á Input Current 3 Input Voltage IIH3 –VIH –VIL VI = 0 V, in the input state, with pull-down resistor VI = 0 V, –3 V, in the input state, without pull-down resistor VI = 0 V, with pull-down resistor — mA V PORT0 to PORT6*2 SOUT, SCLK BD SEG0 to SEG53 PORT0 to PORT6 *2 PORT0 to PORT7*2 SIN, SOUT, SCLK RESET TEST1 to TEST3 All input pins *1 Depends on program. (Values in the above table are applied in the case where the software duty is about 5%.) *2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3, PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3 Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2). 12/16 ¡ Semiconductor MSM6546/6546L NOTES ON USE Power Supply for 0.9 V Microcontroller Series (Backup Flag and Constant-Voltage Circuit) The 0.9 V microcontroller devices have a built-in constant-voltage circuit. The output of this constant-voltage circuit powers the microcontroller's internal logic circuits. Setting a backup flag (BUF) allows the input of the constant-voltage circuit to be switched to either the battery or the output generated in the voltage converter, based on the battery voltage. A battery voltage of 1.5 V or 3.0 V can be selected. VDD (0 V) Internal logic VSS1 (–1.5 V) VSS2 (–3.0 V) VSS3* (–4.5 V) Voltage Backup flag converter (BUF) XT XTAL XTB Constant voltage circuit VR VEE (About –1.3 V) LCD driver* *The VSS3 pin is provided for the devices that contain an LCD driver. The output (VEE) of the constant-voltage circuit is set at approximately –1.3 V. This allows the current consumed by the internal logic to be limited, irrespective of the battery voltage. However, if the input of the constant voltage circuit is below this set value (approximately –1.3 V), the output (VEE) is equal to the input. The 0.9 V microcontroller can be operated even if the internal voltage (output from the constant voltage circuit) falls to 0.9 V. Setting the backup flag allows a larger operating voltage margin despite changes in internal voltage due to noise. For example, for the 1.5 V specification, setting the backup flag to "0" causes twice the battery voltage to enter the constant-voltage circuit. Thus, even if the battery voltage falls to 0.9 V, the output voltage (VEE) is maintained at –1.3 V to allow a larger margin of operating voltage for the internal logic circuits, because 1.8 V is applied to the input of the constant-voltage circuit. Figures 1 to 4 show the internal status depending on the backup flag settings for the battery, as well as status features. 13/16 ¡ Semiconductor MSM6546/6546L (Figure 1) 1.5 V Operation (Backup Flag = "1") VDD = 0 V VDD VB = –1.5 V Internal logic Voltage converter VSS1 VSS2 Voltage doubler Internal status The battery level VSS1 is applied to the input of the constant voltage circuit. Operating range –0.9 to –1.75 V Current 1.5 mA* consumption (–3.0 V) Feature VR VEE When the battery level is powered down, the internal circuit is powered directly by the battery. * When the software duty is about 5% (Figure 2) 1.5 V Operation (Backup Flag = "0") VDD = 0 V VDD VB = –1.5 V Internal logic Voltage converter VSS1 VSS2 Voltage doubler Internal status A doubled level of VSS2 is applied to the input of the constant voltage circuit. Operating range –0.9 to –1.75 V Current 3 mA* consumption (–3.0 V) Feature VR VEE When the battery level is powered down, a larger operating voltage margin is gained, compared to the case of Figure 1. * When the software duty is about 5% (Figure 3) 3.0 V Operation (Backup Flag = "1") VDD = 0 V VDD (–1.5 V) Internal logic Voltage converter VSS1 VB = –3.0 V VSS2 Voltage doubler The battery level VSS2 is applied to the input of the constant voltage circuit. Operating range –0.9 to –3.5 V Current consumption 1.5 mA* VR VEE Internal status Feature When the battery level is powered down, the internal circuit is powered directly by the battery. * When the software duty is about 5% 14/16 ¡ Semiconductor MSM6546/6546L (Figure 4) 3.0 V Operation (Backup Flag = "0") VDD = 0 V VDD (–1.5 V) Internal logic Voltage converter VSS1 VB = –3.0 V VSS2 Voltage rise A doubled level of VSS1 is applied to the input of the constant voltage circuit. Operating range –1.8 to –3.5 V Current 0.75 mA* consumption VR VEE Internal status Feature When the battery level is powered down, a smaller operating voltage margin is gained, compared to the case of Figure 3. * When the software duty is about 5% 15/16 ¡ Semiconductor MSM6546/6546L PACKAGE DIMENSIONS (Unit : mm) QFP100-P-1420-0.65-BK Mirror finish Package material Lead frame material Pin treatment Solder plate thickness Package weight (g) Epoxy resin 42 alloy Solder plating 5 mm or more 1.29 TYP. Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). 16/16