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Release Date: Jul.2015, A1.2 - 1 - Table of Contents-
Release Date: Jul.2015, A1.2 - 2 - 1. GENERAL DESCRIPTION The N567Lxxx is an 8-bit uC based speech/melody synthesizer for 1 or 2 battery application. The N567Lxxx can implement high sound quality voice and up to 8-ch wavetable melody. It provides at most 16 I/O pins, high sink capability, H/W PWM I/O and IR carrier. In addition, N567Lxxx build in booster for VP 3.3V or 4.2V to drive LEDs, PWM mode audio output to drive speaker directly and LVR, Watch Dog Timer to prevent latch -up situation occurring , and LVD to avoid battery over drain. For oscillation, the N567Lxxx provides either internal oscillation to reduce external compon ent or X’tal interface for high accuracy oscillation frequency. The N567Lxxx family contains several items with different playback durations as shown below: Item N567L080 N567L120 N567L160 N567L200 ROM (KB) 254 416 528 638 Duration 84 sec 124 sec. 158 sec. 192 sec. Note: *: The duration time is based on 4-bit NM4 at 6 KHz sampling rate. The firm ware library have been excluded from user’s ROM space for the duration estimation.
Release Date: Jul.2015, A1.2 - 3 - 2. FEATURES Build in 8-bit 65C02 Operating voltage: 1.0 ~ 3.6V Build in internal booster to pump VP as 3.3V or 4.2V (by mask option) Build in ROSC (TRIM), system clock set as 4,096 KHz, 6,144 KHz or 8,192 KHz by Mask Option System Frequency deviation: +/-3% at Vbat 1.5V Provides X’tal mode in N567Lxxx. (i.e., X’tal value = 2 x System Clock) X’tal 8MHz for the system clock of 4MHz X’tal 12MHz for the system clock of 6MHz X’tal 16MHz for the system clock of 8MHz 8-ch wavetable melody, or 2-ch Speech + 6-ch wavetable melody Build in 16 bidirectional GPIO RAM: 384B 3-pair H/W PWM I/O with 6-bit resolution for LED fading effect AUD output: 12-bit PWM output to drive speaker directly F/W speech synthesis: 5-bit MDPCM, 4-bit MDPCM, 8-bit Log PCM No need external Schottky Barrier Diode Typical VP driving current: 30mA Built-in IR carrier generation circuit for simplifying firmware IR application Built-in TimerG1 for general purpose applications Harmonized synchronization among MIDI, Speech, and LED Built-in Watch-Dog Timer (WDT) and Low Voltage Reset (LVR) by mask option Low Voltage detection: 1.0/1.1V (as mask option 1-battery) or 2.0/2.2V (as mask option 2- battery), for user’s program control to avoid battery over drain
Release Date: Jul.2015, A1.2 - 4 - 3. PAD DESCRIPTION Name I/O Description BP00 – BP07 I/O General input/output pins. When used as output pin, it can be open - drain or CMOS type. When used as input pin, there may have a pull-high option and generate interrupt request to release IC from STOP mode. BP07 is used as output pin, it can be the IR transmission carrier for IR application. BP00~BP05 are shared as 3 -pair H/W PWM outputs with 64 -level control. BP10 – BP17 I/O General input/output pins. When used as output pin, it can be open - drain or CMOS type. When used as input pin, there may have a pull-high option and generate interrupt request to release IC from STOP mode. Vbat P Positive power supply of battery for booster. VSSbat*3 P Negative power supply of battery for booster. VDD*3 P Positive power supply for uP and I/O port VSS*2 P Negative power supply for uP and I/O port VDDSPK P Positive power supply for speaker. VSSSPK P Negative power supply for speaker. PWM+ O PWM driver positive output PWM- O PWM driver negative output VP*3 O The voltage booster voltage output VQ*4 I The voltage booster internal switch input OSCIN I X’tal in for the master frequency. OSCOUT O X’tal out for the master frequency. /RESET I Reset with an internal pull-up resistor.
Release Date: Jul.2015, A1.2 - 5 - 4. BLOCK DIAGRAM
Release Date: Jul.2015, A1.2 - 6 - 5. ELECTRICAL CHARACTERISTICS
5.1 Absolute Maximum Ratings
Supply Voltage to Ground Potential -0.3 to +4.0 V D.C. Voltage on Any Pin to Ground Potential -0.3 to VDD +0.3 V Operating Temperature 0 to +70 C Storage Temperature -55 to +150 C Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. 5.2 D.C. Characteristics (Vbat - VSSbat = 1.5V±10%, TA = 25°C; unless otherwise specified) PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT Operating voltage Vbat Fsys= 4,6,8MHz, VP = 3.3V 1.0 - 1.8 V Vbat Fsys= 4,6,8MHz, VP = 4.2V 1.0 - 3.6 Operating current (without external load) Iop Fsys= 8MHz, VP=3.3V - 10 - mA Iop Fsys= 8MHz, VP=4.2V - 18 - Standby current Isb VP=3.3V, VP=4.2V - - 1 A Input Low Voltage VIL All input pins VSS - 0.3 VDD V Input High Voltage VIH All input pins 0.7 VDD - VDD V Input Low Voltage VIL Reset pin VSS - 0.3 Vbat V Input High Voltage VIH Reset pin 0.7 Vbat - Vbat V *Low Battery Protection current IBP VP=3.3V, VP=4.2V at Vbat = 0.8V POR or STOP mode release - 10 - A Input Current I/O pins IIN1 VIN = 0V, VDD = 4.2V, pulled-high resistor = 110k ohm -23 -38 -57 μA Input Current I/O pins IIN1 VIN = 0V, VDD = 4.2V, pulled -high resistor = 330k ohm -7 -13 -20 μA IO output capability IOL1 VP= 3.3V, Vout= 0.4V (BP0) 8 12 - mA IOH1 VP= 3.3V, Vout= 2.9V (BP0) -4 -6 - IOL1 VP= 3.3V, Vout= 0.4V (BP1) 4 6 IOH1 VP= 3.3V, Vout= 2.9V (BP1) -4 -6 **PWM driver current Ipw VP=3.3V, Rl=8, connect to PWM+ and PWM- 125 - - mA Low Voltage Detect VSD 1.0V option of one battery 0.95 1.0 1.05 V
Release Date: Jul.2015, A1.2 - 7 - 1.1V option of one battery 1.05 1.1 1.16 V 2.0V option of two batteries 1.90 2.0 2.10 V 2.2V option of two batteries 2.09 2.2 2.31 V LVR for booster VTH Fsys = 8MHz Fsys = 6MHz Fsys = 4MHz 2.2 - V Booster output voltage VP V VP=4.2V 3.8 4.2 4.6 Booster output driving Ib VP=3.3V 35 mA VP=4.2V 30 Booster efficiency - Vbat = 1.5V, VP = 3.3V, L = 100uH, Resistance of L = 0.7 ohm - 80 - Vbat = 1.5V, VP = 4.2V, L = 100uH, Resistance of L = 0.7 ohm - 75 - *:Low voltage start-up/wake-up protection to avoid booster enable to consume large current. **: The value represents the audio PWM buffer size, and it means the buffer allows PWM transient current to pass through it instantaneously. The value listed here is measured fr om VP=3.3V, where VP is powered by power supply instead of N5 67L booster, because N5 67L booster can’t generate the DC current as large as 125mA continuously Note: Based on the limitation of booster capability, user has to take care of the power consumption of audio PWM, in order to keep VP=3.3V, both for constant LED brightness and playback volume. 5.3 A.C. Characteristics (Vbat-VSSbat = 1.5 V, FM = 8 MHz, Ta = 25C; No Load unless otherwise specified) PARAMETER SYM. TEST CONDITIONS SPEC. UNIT Min. Typ. Max. Main-Clock FM Internal OSC (TRIM) 3973 4096 4218 KHz Internal OSC (TRIM) 5959 6144 6328 Internal OSC (TRIM) 7946 8192 8437 Main-clock wake-up stable time TWSM 2^16 clock cycle 8 16 mS Cycle Time Tcyc CPU clock = 8 MHz 125 DC nS /RESET active width TRST After FSYS stable 4 TCYC
Release Date: Jul.2015, A1.2 - 8 - 6. TYPICAL APPLICATION CIRCUIT N567L VQ Vbat VSSbat VP VDD VSS VSSSPK VDDSPK (Battery) PWM+ PWM- L1 (33uH) (47uF) (0.1uF) (0.1uF) (47uF) Speaker (8 ohm) /RESETC5 (0.1uF) (Option) (Option to short) Note: 1. C1, C4 are must to stable power. 2. C3 is must to filter power noise 3. C5 is must to be POR 4. L1 is must for booster 5. C2 is optional to filter harmonic of PWM output 6. R1 is option al to be a low -pass filter in heavy loading application. As ignoring it, it should be shorted in VP and VDD
Release Date: Jul.2015, A1.2 - 9 - 7. REVISION HISTORY Version Date Description Page A1.0 Nov-4-2014 First establishment A1.1 Dec-16-2014 Update LVD voltage and Application circuit A1.2 Jul-9-2015 Update operation current typical value 6
Release Date: Jul.2015, A1.2 - 10 - Important Notice Nuvoton Products are neither intended nor warranted for usage in systems or equipment, any malfunction or failure of which may cau se loss of human life, bodily injury or severe property damage. Such applications are deemed, “Insecure Usage”. Insecure usage includes, but is not limited to: equipment for surgical implementation, atomic energy control instruments, airplane or spaceship instruments, the control or operation of dynamic, brake or safety systems designed for vehicular use, traffic signal instruments, all types of safety devices, and other applications intended to support or sustain life. All Insecure Usage shall be made a t customer’s risk, and in the event that third parties lay claims to Nuvoton as a result of customer’s Insecure Usage, customer shall indemnify the damages and liabilities thus incurred by Nuvoton.