NJU3554 PRELIMINARY 4-BIT SINGLE CHIP OTP MICRO CONTROLLER ■ PACKAGE OUTLINE ■ GENERAL DESCRIPTION The NJU3554 is the C-MOS 4-bit Single Chip OTP type Micro Controller with programmable Flash Memory. It is completely compatible with the NJU3504 in function and the pin configuration. Therefore, the NJU3554 is suitable for the final evaluation before NJU3504 mask generation, the small quantity production and short leadtime. * In this data sheet, only OTP programming and the difference between NJU3554 and NJU3504 are mentioned mainly. Therefore the detail function and specification should be referred on the NJU3504 data sheet. NJU3554FA1 NJU3554L ■ FEATURES ● ● ● ● ● Internal One Time Programmable ROM 4,096 X 8bits Internal Data RAM 256 X 4bits Wide operating voltage range 2.7V ~ 5.5V Package outline QFP44-A1 / SDIP42 (Compatible with NJU3504) ROM programmer “SUPERPRO/L” by XELTEK co,. ■ PIN CONFIGURATION IN OTP PROGRAMMING MODE [ QFP44-A1 ] D6 34 D7 35 36 37 38 39 Open CNT1 40 41 42 CNT1 CNT2 1 33 VDD 2 32 Open 3 31 D5 4 30 D4 29 D3 28 D2 5 NJU3554FA1 6 D0 REQ 10 24 11 23 Open VDD Open VSS VSS 22 25 21 9 20 CLK 19 D1 18 26 17 8 16 PROM 15 Open 14 27 13 7 12 RESET Open RESET PROM CLK REQ VSS VSS Open Open VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 NJU3554L Open 43 44 Open CNT2 [ SDIP42 ] 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 Open D7 D6 VDD Open D5 D4 D3 D2 Open D1 D0 Open Note) The pin configuration in Normal operating mode is the same as NJU3504. -1- -2- AVss AVDD ADCK/PJ1 VREF/PJ0 AIN3/PI3 AIN2/PI2 AIN1/PI1 AIN0/PI0 SDI(O)/PL1 SDO/PL0 A/D SIO TIMER2 TIMER1 PC PORT_A PORT_B ID IR 4096 x 8 bits OTP ROM MUX TLU addr STACK Logic ALU PORT_C PORT_D Y’ Reg Y Reg 256 x 4 bits RAM X’ Reg X Reg CPU CORE AC PORT_F PORT_E STANDBY CONTROLLER CPU TIMING GENERATOR PF2 PE3 PC1 PC0 PB3 PB2 PB1 PB0 PA3 PA2 PA1 PA0 * Refer [INPUT OUTPUT TERMINAL TYPE] INT4 INT3 INT2 Interrupt PORT_G OSC PRESCALER PORT_H OSC2 OSC1 RESET TEST VSS VDD ■ BLOCK DIAGRAM CNTI/PK1 EXTI/PK0 INT1 NJU3554 NJU3554 PH1 PH0 PG1 PG0 PF1 PF0 PE2 PE1 PE0 PD3 PD2 PD1 PD0 NJU3554 ■ TERMINAL DESCRIPTION IN OTP PROGRAMMING MODE No. NJU NJU 3554F 3554L 7 SYMBOL INPUT / OUTPUT FUNCTION RESET INPUT RESET terminal. When the low-level input-signal, the system is initialized. 10 25, 26, 28, 29, 28-31, 31-34, 34, 35 37, 38 1 40, 2 41 10 13 9 12 8 11 18, 33 21, 36 11, 12 14, 15 Note 1) 2) D0 - D7 INPUT/OUTPUT Data bus CNT1 CNT2 REQ CLK PROM VDD VSS INPUT INPUT OUTPUT INPUT INPUT - OTP control input terminal Request output terminal Clock input terminal OTP programming enable terminal Power Source (5V) Power Source (0V) Use at VDD=5V in OTP programming mode. Non connect anything to the other terminals. ■ Difference between NJU3554 (OTP version) and NJU3504 (MASK version) ● Operating mode NJU3554 has two operating modes. One is ”Normal operating mode” and the other is “OTP programming mode”. ● • Normal operating mode The ”TEST” terminal is set to low level. (The terminal is recommended to connect to GND.) Operating voltage range; 2.7V ~ 5.5V. • OTP Programming mode User program is read out from or written into the OTP by the universal programmer “SUPERPRO/L” and converting adapter made by XELTEK co,.(USA). Reset Terminal Type NJU3554 With Pull-up Internal Pull-up Resistance ● NJU3504 Without Pull-up Option information set in the initialization When the initialization is performed(RESET terminal is “L”), the operation information stored in option area is set as shown in the following timing chart . The option information is set in the term of 1 / fOSC x 512clock after RESET releasing and oscillation stability time. After information set, the program counter is set to 0000H and the NJU3554 operates in normal. [ TIMING CHART ] Oscillation Stability Time Option information setting 1/fOSCx512clock Normal Operation Oscillator Clock Oscillation Start RESET PC=0000H fOSC=4MHz about 128µsec -3- NJU3554 ■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VDD -0.3 ~ +7.0 V Input Voltage VIN -0.3 ~ VDD + 0.3 V Output Voltage VOUT -0.3 ~ VDD + 0.3 V Analog Supply Voltage AVDD -0.3 ~ VDD + 0.3 V Analog Reference Voltage VREF -0.3 ~ AVDD + 0.3 V AIN0 ~ AIN3 -0.3 ~ AVDD + 0.3 V Analog Input Voltage Operating Temperature Topr -20 ~ +75 °C Storage Temperature Tstg -55 ~ +125 °C Note) The difference of electrical characteristics between NJU3554 (OTP version) and NJU3504 (MASK version) NJU3504 NJU3554 Supply Voltage (VDD) MIN. 2.4V → 2.7V Supply Current 5V (IDD1) Max. (IDD2) Max. (IDD3) Max. (IDD4) Max. (IDD5) Max. 4.0mA 4.0mA 3.8mA 5.2mA 4.0µA → → → 30mA 30mA 30mA 30mA 20µA 2.0mA 2.0mA 1.8mA 1.4mA 2.0µA → → • • 3V -4- (IDD1) Max. (IDD2) Max. (IDD3) Max. (IDD4) Max. (IDD5) Max. → → → 20mA 20mA 20mA 20mA 20µA NJU3554 ■ ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS 1-1 (VDD=3.6~5.5V, VSS=0V, Ta=-20~75°C) PARAMETER Supply Voltage SYM BOL VDD CONDITIONS VDD VDD IDD1 VDD=5V, fOSC=2MHz X’tal Oscillation in Reset VDD IDD2 VDD=5V, fOSC=2MHz Ceramic Oscillation in Reset VDD IDD3 VDD=5V, fOSC=2MHz Supply Current CR Oscillation in Reset VDD IDD4 VDD=5V, fOSC=4MHz Operating (Except ADC) VDD IDD5 VDD=5V, STANDBY Mode AVDD IADD AVDD=VDD=5V, ADCK=225kHz PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, VIH1 AIN0/PI0~AIN3/PI3, SDI(O)/PL1, SCK/CKOUT High-Level Input Voltage PF0~PF2, PG0, PG1, PH0, PH1, VIH2 VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, RESET OSC1 VIH3 PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, VIL1 AIN0/PI0~AIN3/PI3, SDI(O)/PL1, SCK/CKOUT Low-level Input Voltage PF0~PF2, PG0, PG1, PH0, PH1, VIL2 VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, RESET OSC1 VIL3 *1 Input/output port is set as an Input terminal. *2 Input/output port is set as an Output terminal. *3 Except the current through Pull-up resister. MIN TYP 3.6 MAX UNIT NOTE 5.5 V 30 mA *3 30 mA *3 30 mA *3 30 mA *3 20 µA *3 5.0 mA *3 0.7VDD VDD V *1 0.8VDD VDD V *1 VDD-1.0 VDD V 0 0.3VDD V *1 0 0.2VDD V *1 0 1.0 V 3.0 -5- NJU3554 ■ ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS 1-2 (VDD=3.6~5.5V, VSS=0V, Ta=-20~75°C) PARAMETER High-Level Input Current SYM BOL IIH IIL1 Low-Level Input Current IIL2 High-Level Output Voltage Low-Level Output Voltage VOH VOL1 VOL2 Output Leakage Current IOD CONDITIONS VDD=5.5V, VIN=5.5V PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, AIN0/PI0~AIN3/PI3, VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, SDI(O)/PL1, RESET, SCK/CKOUT VDD=5.5V, VIN=0V Without pull-up resistance PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, AIN0/PI0~AIN3/PI3, VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, SDI(O)/PL1, SCK/CKOUT VDD=5.5V, VIN=0V With pull-up resistance PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, AIN0/PI0~AIN3/PI3, VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, SDI(O)/PL1, RESET, SCK/CKOUT IOH=-100µA PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, SDO/PL0, SDI(O)/PL1, SCK/CKOUT IOL1=400µA PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, SDO/PL0, SDI(O)/PL1, SCK/CKOUT IOL2=15mA PA0~PA3, PB0~PB3, PC0, PC1 -6- CIN TYP MAX 10 UNIT NOTE 10 µA *1 -10 µA *1 -100 µA *1 V *2 0.5 V *2 2.0 V *2 10 µA *2 20 pF VDD-0.5 VDD=5.5V, VOH=5.5V PA0~PA3, PB0~PB3, PC0, PC1 Except VDD, VSS terminals fOSC=1MHz Other terminals : 0V *1 Input/output port is set as an Input terminal. *2 Input/output port is set as an Output terminal. *3 Except the current through Pull-up resister. Input Capacitance MIN NJU3554 ■ ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS 2-1 (VDD=2.7~3.6V, VSS=0V, Ta=-20~75°C) PARAMETER Supply Voltage SYM BOL VDD CONDITIONS VDD VDD IDD1 VDD=3V, fOSC=1MHz X’tal Oscillation in Reset VDD IDD2 VDD=3V, fOSC=1MHz Ceramic Oscillation in Reset VDD IDD3 VDD=3V, fOSC=1MHz Supply Current CR Oscillation in Reset VDD IDD4 VDD=3V, fOSC=2MHz Operating (Except ADC) VDD IDD5 VDD=3V, STANDBY Mode AVDD IADD AVDD=VDD=3V, ADCK=225kHz PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, VIH1 AIN0/PI0~AIN3/PI3, SDI(O)/PL1, SCK/CKOUT High-Level Input Current PF0~PF2, PG0, PG1, PH0, PH1, VIH2 VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, RESET OSC1 VIH3 PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, VIL1 AIN0/PI0~AIN3/PI3, SDI(O)/PL1, SCK/CKOUT Low-Level Input Voltage PF0~PF2, PG0, PG1, PH0, PH1, VIL2 VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, RESET OSC1 VIL3 *1 Input/output port is set as an Input terminal. *2 Input/output port is set as an Output terminal. *3 Except the current through Pull-up resister. MIN TYP 2.7 MAX UNIT NOTE 3.6 V 20 mA *3 20 mA *3 20 mA *3 20 mA *3 20 µA *3 3.5 mA *3 0.8VDD VDD V *1 0.85VDD VDD V *1 VDD-0.3 VDD V 0 0.2VDD V *1 0 0.15VDD V *1 0 0.3 V 2.5 -7- NJU3554 ■ ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS 2-2 (VDD=2.7~3.6V, VSS=0V, Ta=-20~75°C) PARAMETER High-Level Input Current SYM BOL IIH IIL1 Low-Level Input Current IIL2 High-Level Output Voltage Low-Level Output Voltage VOH VOL1 VOL2 Output Leakage Current IOD CONDITIONS VDD=3.6V, VIN=3.6V PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, AIN0/PI0~AIN3/PI3, VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, SDI(O)/PL1, RESET, SCK/CKOUT VDD=3.6V, VIN=0V Without pull-up resistance PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, AIN0/PI0~AIN3/PI3, VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, SDI(O)/PL1, SCK/CKOUT VDD=3.6V, VIN=0V With pull-up resistance PA0~PA3, PB0~PB3, PC0, PC1, PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, AIN0/PI0~AIN3/PI3, VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1, SDI(O)/PL1, RESET, SCK/CKOUT IOH=-80µA PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, SDO/PL0, SDI(O)/PL1, SCK/CKOUT IOL1=350µA PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, SDO/PL0, SDI(O)/PL1, SCK/CKOUT IOL2=5mA PA0~PA3, PB0~PB3, PC0, PC1 -8- CIN TYP MAX 10 UNIT NOTE 10 µA *1 -10 µA *1 -100 µA *1 V *2 0.5 V *2 1.0 V *2 10 µA *2 20 pF VDD-0.5 VDD=3.6V, VOH=3.6V PA0~PA3, PB0~PB3, PC0, PC1 Except VDD, VSS terminals fOSC=1MHz Other terminals : 0Ｖ *1 Input/output port is set as an Input terminal. *2 Input/output port is set as an Output terminal. *3 Except the current through Pull-up resister. Input Capacitance MIN NJU3554 ■ ELECTRICAL CHARACTERISTICS AC CHARACTERISTICS 1 (VSS=0V, Ta= -20~75°C) PARAMETER SYM BOL CONDITIONS VDD=2.7~3.6V Operating Frequency fOSC VDD=3.6~5.5V Instruction Cycle Time External Clock Pulse Width External Clock Rise Time Fall Time RESET Low-Level Width RESET Rise Time Port Input Level Width Edge Detection (PH1) Rise Time Fall Time Restart Signal (PH0) Rise Time External interrupt input (EXTI) Rise Time CNTI Clock Frequency CNTI High-Level Width CNTI Rise Time Fall Time X’tal Resonator Ceramic Resonator External Resistor Oscillation External Clock X’tal Resonator Ceramic Resonator External Resistor Oscillation External Clock MIN TYP MAX 0.03 0.03 2.0 2.0 0.03 1.0 0.03 0.03 0.03 2.0 4.0 4.0 0.03 2.0 0.03 4.0 6/fOSC tC 250 125 UNIT MHz s tCPH tCPL VDD=2.7~3.6V VDD=3.6~5.5V 16600 16600 ns tCPR tCPF VDD=2.7~5.5V 20 ns tRST VDD=2.7~5.5V tRSR VDD=2.7~5.5V tPIN VDD=2.7~5.5V tEDR tEDF VDD=2.7~5.5V 200 ns tSTR VDD=2.7~5.5V 200 ns tEXR VDD=2.7~5.5V 200 ns fCT VDD=2.7~5.5V fOSC/64 Hz tCT VDD=2.7~5.5V tCTR tCTF VDD=2.7~5.5V 4/fOSC s 20 6/fOSC ms s 6/fOSC s 200 ns -9- NJU3554 ■ AC CHARACTERISTICS 1 TIMING CHART EXTERNAL CLOCK 1/fOSC VIH3 OSC1 VIL3 tCPH tCPF RESET INPUT tRST tCPR tCPL tRSR VIH2 RESET VIL2 PORT INPUT tPIN VIH1, VIH2 PORT VIL1, VIL2 EDGE DETECTOR INPUT tEDF tEDR VIH2 PH1 VIL2 RESTART SIGNAL INPUT tSTR VIH2 PH0 VIL2 EXTERNAL INTERRUPT tEXR VIH2 EXTI VIL2 TIMER2 EXTERNAL CLOCK TIMING CHART 1/fCT VIH2 CNTI VIL2 tCTR - 10 - tCT tCTF NJU3554 ■ ELECTRICAL CHARACTERISTICS AC CHARACTERISTICS 2 SERIAL INTERFACE (VSS=0V, VDD=2.7~5.5V, Ta= -20~75°C) PARAMETER SYM BOL Serial Operating Frequency fSC Clock Pulse Width Low-Level tSCL CONDITIONS MIN Internal Clock External Clock Internal Clock tSCH Internal Clock VDD=2.7~3.6V fOSC=2MHz VDD=3.6~5.5V fOSC=4MHz UNIT 3.0 µs 1.5 1.0 VDD=2.7~3.6V fOSC=2MHz VDD=3.6~5.5V fOSC=4MHz 3.0 µs 1.5 External Clock SDI setup Time tDS To SCK SDI Hold time tDH To SCK SDO Data t Fix Time To SCK DCD * The dividing ratio of the internal clock is 1/2. ■ AC CHARACTERISTICS 2 MAX (1/12)×fOSC* Hz 500k External Clock Clock Pulse Width High-Level TYP 1.0 0.5 µs 0.5 µs 0.5 µs SERIAL INTERFACE TIMING CHART 1/fSC tSCL tSCH VIH1 SCK VIL1 tDS tDH VIH1 SDI(O) INPUT DATA VIL1 tDCD VOH OUTPUT DATA SDO/SDI(O) VOL1 - 11 - NJU3554 ■ ELECTRICAL CHARACTERISTICS A/D CONVERTER CHARACTERISTICS (VDD=AVDD=2.7~5.5V, VSS=AVSS=0V, Ta=25°C, fOSC=4MHz) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT - 8 - bits ±2 LSB Resolution - Absolute Accuracy - VDD=5V, AVDD=5V, VREF=5V Conversion Time tCONV VDD=5V, AVDD=5V, VREF=5V Reference Voltage VREF 2.7 AVDD V VIA AVSS VREF V 225 kHz Analog Input Voltage ADCK Frequency - 12 - fADCK µs 40 NJU3554 ■ OPTION as same as mask version (NJU3504) PA0 Programmable Input / Output Port of Output SYMBOL Port of Input 1) INPUT OUTPUT Terminal Selection All of input-output terminals select a terminal type for each port from the following table1 and table2 by the mask option. [ CIRCUIT TYPE TABLE 1 ] TERMINAL TYPES Input / Output Terminal*1 EXTRA FUNCTION REMARKS IOP IO IOP IO IOP IO IOP IO IOP IO IOP IO IOP IO IOP IO PA1 PA2 PA3 PB0 PB1 PB2 PB3 PC0 ICP IC ONP ON PC1 ICP IC ONP ON PD0 ICP OC IC PD1 ICP OC IC PD2 ICP OC IC PD3 ICP OC IC PE0 ICP OC IC PE1 ICP OC IC PE2 ICP OC IC PE3 ICP OC IC Note) The symbol in the above table is the same as in mask option generator software. *1) The symbol and the detail circuits of INPUT OUTPUT TERMINAL are written in INPUT OUTPUT TERMINAL TYPE. - 13 - NJU3554 [ CIRCUIT TYPE TABLE 2 ] TERMINAL TYPES PF0 PF1 PF2 PG0 PG1 PH0 PH1 AIN0 / PI0 AIN1 / PI1 AIN2 / PI2 AIN3 / PI3 VREF / PJ0 ISP IS ISP IS ISP IS ISP IS ISP IS ISP IS ISP IS ICP IC ICP IC ICP IC ICP IC ISP IS ISP IS ISP IS ISP IS OC Programmable Input / Output Port of Output SYMBOL Port of Input Input / Output Terminal*1 EXTRA FUNCTION REMARKS OC OC OC OC OC Restart signal input OC Edge detection AD AD AD AD AD Analog input to ADC (AIN0) Analog input to ADC (AIN1) Analog input to ADC (AIN2) Analog input to ADC (AIN3) Reference input (VREF) External clock input (ADCK) External interrupt input (EXTI) External clock of Timer 2 input (CNTI) Serial data output Serial data input/output R F Rise edge detection Fall edge detection ACP AC IIP R Rise interrupt input II F Fall interrupt input IIP CNTI / PK1 II *2 SDO / PL0 OC SO MSB MSB first SDP LSB LSB first SDI(O) / PL1 ICP OC SD *2 IC SCP Serial clock input/output SCK / CKOUT SC *2 *3 Output clock divide by pre-scaler Note) The symbol in the above table is the same as in mask option generator software. *1) The symbol and the detail circuits of INPUT OUTPUT TERMINAL are written in INPUT OUTPUT TERMINAL TYPE. *2) The pull-up resistance is added to the terminal selected as the extra function. *3) When Serial INPUT-OUTPUT is selected, “SCK” is selected automatically. When it is not selected, “CKOUT” is selected automatically. ADCK / PJ1 *2 EXTI / PK0 *2 - 14 - NJU3554 [MASK OPTION LIST] SYM BOL SYM BOL FUNCTION FUNCTION ICP C-MOS input with pull-up resistance R Rise edge detection ISP C-MOS Schmitt trigger input with pull-up resistance F Fall edge detection IC C-MOS input MSB Serial data order MSB first IS C-MOS Schmitt trigger input LSB Serial data order LSB first Nch-FET Open-Drain output with pull-up resistance 1 1/2 OC C-MOS output 2 1/4 ON Nch-FET Open-Drain output 3 1/8 IIP External interrupt resistance 4 1/16 5 1/32 6 1/64 ONP II SDP input with pull-up External interrupt input Serial data resistance input/output with pull-up SD Serial data input/output 7 1/128 SO Serial data output 8 1/256 Serial clock input/output with pull-up resistance 9 1/512 SC Serial clock input/output a 1/1024 AD A/D converter b 1/2048 External clock input with pull-up resistance for ADC c 1/4096 SCP ACP AC External clock input for ADC IOP Programmable input/output with pull-up resistance IO Programmable input/output - 15 - NJU3554 [ INPUT OUTPUT TERMINAL TYPE ] Types With Pull-up Without Pull-up Type ICP Type IC PC0, PC1, PD0~PD3, PE0~PE3, AIN0/PI0~ AIN3/PI3, SDI(O)/PL1 Type ISP Type IS PF0~PF2, PG0, PG1, PH0, PH1, VREF/PJ0, ADCK/PJ1, EXTI/PK0, CNTI/PK1 Type ON PD0~PD3, PE0~PE3, PF0~PF2, PG0, PG1, PH0, PH1, SDO/PL0, SDI(O)/PL1 Type ONP Type ON PC0, PC1 Type IOP Type IO PA0~PA3, PB0~PB3 INPUT TERMINAL C-MOS SCHMITT TRIGGER PROGRAMMABLE INPUT OUTPUT TERMINAL OUTPUT TERMINAL C-MOS - 16 - Terminals N-channel(Nch) OPEN DRAIN C-MOS INPUT / Nch OPEN DRAIN OUTPUT NJU3554 2) Edge Detector Selection PH1 terminal is added the “Edge detect function” by the mask option. Rising edge Falling edge 3) The data order (MSB, LSB) of the Serial Interface The data order of the Serial Interface is selected select either MSB or LSB first by the mask option. 4) A/D Control Clock A/D Control Clock is selected either the external clock from ADCK terminal or the internal clock from the prescaler by the mask option. 5) Dividing ration of the internal clock Each dividing ration of the count clocks of Timer1 and Timer2, the Internal shift clock of the Serial Interface, the clock of the A/D control clock and the output clock through the SCK/CKOUT terminal is selected among the following by the mask option. The frequency of each clock is determined by the dividing ration and the 1-instruction term (1/fOSCx6). 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256, 1/512, 1/1024, 1/2048, 1/4096 Note) As Timer2 clock, the external clock or the internal is selected by the program. As the shift clock of the serial interface, the external clock or the internal is selected by the program. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. - 17 -