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SC65D02P40
8-BIT MCU FOR PRESET REMOTE CONTROL (OTP TYPE)
DESCRIPTION
SC65D02P40 is a preset universal remote control transmitter which uses Silan's 8-bit MCU core SC65X. It integrates 8K-byte ROM, 32K-byte OTP memory and special code transmitting module, so a preset universal remote solution can be easily achieved only with a few periphery components. It can preset hundreds of different remote codes and data to control a plurality of home electric appliances. Because of the embedded powerful code transmitting programs in ROM and together with affiliated PC software assistant design and test, the R&D cycle and workload can be greatly reduced, and the reliability of the product can be improved. Another universal remote control transmitter SC65D02C40 of Silan has built-in 40K ROM and it is compatible with SC65D02P40 in memory total capacity and function. The program developed on SC65D02P40 can be directly used to generate the masking program of SC65D02C40, which will reduce the cost of mass production and improve the production efficiency.
APPLICATIONS
Preset universal remote control.
FEATURES
Use 8-bit MCU core SC65X. Built-in 8K-byte ROM and 32K-byte OTP memory. Integrate code transmitting circuit, the carrier frequency and duty can be set flexibly, provide 32-byte code transmitting buffer. Maximum 20 pins for key function, support 96 keys. Use CMOS technology, operating voltage is 1.8V ~ 3.6V, quiescent current is less than 1A. Together with good application software, development efficiency is high.
ORDERING INFORMATION
Part No. SC65D02P40 SC65D02P40A SC65D02P40B SC65D02P40C General purpose I/O ports 16 16 20 20 Package SSOP-24-300-0.65 SOP-24-375-1.27 SOP-28-375-1.27 SSOP-28-300-0.65 Marking SC65D02P40 SC65D02P40A SC65D02P40B SC65D02P40C
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SC65D02P40
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Characteristics Power Supply Input Voltage Storage Temperature Operating Temperature Symbol VDD VIN Tstg Topr Range -0.3 ~ +5.0 -0.3 ~ VDD+0.3 -40 ~ +125 -20 ~ +70 Unit V V C C
ELECTRICAL CHARACTERISTICS(unless otherwise specified, VDD=3vTamb=25c)
Characteristics Operating Voltage Operating Current Quiescent Current Operating Clock High Level Input Voltage Low Level Input Voltage High Level Output Voltage Symbol VDD IDD IDS Fosc VIH VIL VOH -Code transmitting with no load Oscillator off ---No load Test condition Min. 1.8 --2 0.7VDD 0 0.9VDD Typ. -4.5 0.1 4 ---Max. 3.6 5.0 1 6 VDD 0.3VDD -Unit V mA A MHz V V V
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SC65D02P40
Characteristics Low Level Output Voltage High Level Current On Output Pin Symbol VOL Test condition No load P0/P1/P2 IOH VOH=2.7V P30 CYOUT P0/P1/P2 Low Level Current On Output Pin IOL VOL=0.3V P30 CYOUT Port Pull-Up Resistor Rpu -Min. -4.4 9.8 9.8 9.8 9.8 9.8 2.0 Typ. -4.5 12 10 10 12 10 2.2 Max. 0.1VDD 4.6 12.3 10.2 10.2 12.3 10.2 2.3 Unit V mA mA mA mA mA mA M
PIN CONFIGURATION
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SC65D02P40
PIN DESCRIPTION
SC65D02P40/A Pin No. 1 24 2 3 4 5~12 13~20 21 22 23 Pin Name VDD GND XIN XOUT nRST P00~P07 P20~P27 P30 CYOUT VPP I/O --I O I I/O I/O O O -Power supply Ground External oscillator input pin. External oscillator output pin (connect driver resistor in series between XOUT and oscillator) External reset pin (internal pull-up resistor, low active) I/O pin usually used for keyboard input I/O pin usually used for keyboard output Output pin usually used for driving LED lamp directly. Infrared signal control output pin. OTP program voltage input (in program mode, connects to 6.5V voltage, in non-program mode, connects to VDD) Function description
SC65D02P40B/C Pin No. 1 28 2 3 4 5~12 13~16 17~24 25 26 27 Pin Name VDD GND XIN XOUT nRST P00~P07 P10~P13 P20~P27 P30 CYOUT VPP I/O --I O I I/O I/O I/O O O -Power supply Ground External oscillator input pin. External oscillator output pin (connect driver resistor in series between XOUT and oscillator) External reset pin (internal pull-up resistor, low active) I/O pin usually used for keyboard input I/O pin usually used for keyboard output I/O pin usually used for keyboard output Output pin usually used for driving LED lamp directly. Infrared signal control output pin. OTP program voltage input (in program mode, connects to 6.5V voltage, in non-program mode, connects to VDD) Function description
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SC65D02P40
FUNCTION DESCRIPTION
1.
Address space assignment
SC65D02P40 distributes program and data space in uniform addressing method, shown in figure 1.
Figure 1 - Address assignment 2. Oscillator circuit
SC65D02P40 provides a high-gain RP-amplifie whose input is XIN and output is XOUT. By connecting a quartz crystal and two capacitors between XIN and XOUT, a stable self oscillator can be composed, shown in figure 2. The oscillation waveform generated by the oscillator circuit generates the oscillator clock after it is reshaped by the inverter. The oscillator clock provides the clock signal for WDT and code transmitting block, at the same time as the SC65X MCU system clock after dividing frequency by 4.
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SC65D02P40
Figure 2 - Oscillator circuit Where: Rd is drive resistor, the value is 100~ 300. C1 and C2 are load capacitors with same value, the range is 10pF ~ 30pF. XTAL is crystal oscillator, frequency is 2MHz ~ 6MHz. 3. Periphery modules
3.1 WDT/timer [Description] As shown in figure 3, in WDT/timer module, the 16-bit timer can also be used as the low 16-bit of 21-bit WDT. The counting clock of WDT/timer can be directly provided by oscillator clock OscClk. [Structure]
Figure 3 - WDT/timer diagram
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SC65D02P40
[Function description] When external reset occurs, the initial value of timer(WDT_TimerH, WDT_TimerL)and 21-bit watchdog counter are both cleared. When use the clear module to reset the watchdog timer, the high 5-bit of the watchdog counter is cleared, the low 16-bit will be loaded from the initial value register of timer again and begin to count. When the low 16-bit of watchdog counter counts to FFFFH, the timer will overflow if increasing by 1 , then reload the initial value of timer; At this time, if the interrupt mask bit (WDT_MASK)="0" and the timer interrupt enable bit(WDT_TimerEn)="1", it will generate timer interrupt signal, and WDT_FLAG is set. Add 1 to the counting value of high 5-bit of watchdog timer when bit15 of watchdog counter changes from 1 to 0; the watchdog will generate reset signal if bit20 of watchdog counter changes from 1 to 0. 3.2 I/O ports [Description] SC65D02P40 includes three groups of I/O ports: P0, P1 and P2. P0 and P2 are 8-bit parallel ports, while P1 is 4-bit parallel port. Each I/O port of SC65D02P40 can be set independently as weak pull-up input or push-pull output status. The high level output capacity of the port is much bigger than low level output capacity, so it can identify the dualkey or multi-key pressing at the same time. [Structure]
Figure 4 - P0 structure Note: The structure of P1 and P2 is the same as P0. [Function description] As shown in figure 4, we take P0 for example to introduce the I/O port function. The function of P1 and P2 is the same with that of P0. When P0_Ctrl[n] is set, PMOS P1 and NMOS N1 are both off, PMOS P2 is on, pull-up resistor Rpu is active, and port P0n is input mode. When P0_Ctrl[n] is cleared, PMOS P2 is off, port P0n is output mode. At this time, when P0_Data[0] is set, PMOS P1 is on, NMOS N1 is off, and port P0n outputs high level; when P0_Data[0] is cleared, PMOS P1 is off, NMOS N1 is on, and port P0n outputs low level.
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SC65D02P40
3.3 P3 port [Description] P3 of SC65D02P40 has only one bit which is only as output port. 3.4 ROM [Description] SC65D02P40 has built-in 8K-byte read-only memory(ROM), and the address range is 6000H ~ 7FFFH. This ROM is masked with code transmitting program which can simplify the main program development of the customer circuit and self-test program, etc. Of course, the customer may not use the program in ROM. 3.5 OTP memory [Description] The address space of OTP memory is 8000H~FFFFH. OTP memory is mainly used to store the main program and read-only data, where FFF0H~FFFFH is the configuration area including the reset vector and interrupt vector in normal working mode and testing mode as well as the protect byte of the OTP, shown in figure 5:
Figure 5 - OTP configuration area The reset vector value is the initial value of PC after the circuit is reset, that is the entry address of the main program, where, the high byte is stored in FFFBH, and low byte is stored in FFFAH. For example: FFFAH stores 40H, FFFBH stores 80H, then after the circuit is reset, then PC points to 8040H. The interrupt vector value is the initial value of PC after MCU responses to the interrupt, which is the entry address of the interrupt service routine, where, the high byte is stored in FFF9H, and low byte is stored in FFF8H. For example: FFF8H stores 00HFFF9H stores 80H, then the interrupt entry address is 8000H.
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SC65D02P40
The reset vector value and the interrupt vector value in test mode are useful in production test, and the customer should set FFF0H with 00H, FFF1H with 60H, FFF2H with 04H, FFF3H with 60H to make sure the program down load is correct, for example, the customer should add the following code in proper position: ORG DW DW FFF0H 6000H 6004H
The default value of OTP protect byte is FFH, now the content of OTP memory can be read by OTP programmer or emulator provided by Silan. If you set OTP cipher byte as 00H, then you cannot read this OTP memory in any method, which can protect the customer's software copyright. 3.6 Code transmitting module [Description] This module is used to generate the high and low level sequence for Infrared diode control. It is comprised of carrier generating circuit and 32-byte code transmitting buffer which will realize the exact code transmitting. [Structure]
Figure 6 - Code transmitting diagram [Function description] The code transmitting of SC65D02P40 defines a universal waveform (figure 7), which should be complied with when transmitting code.
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SC65D02P40
Figure 7 - Code transmitting format The oscillator clock OscClk generates TClk (the cycle is T) via the code transmitting basic clock. The counting clock of the carrier generator is from the system clock TClk, as shown in figure 8. Where, the high level and low level time of the carrier is decided by the customer set TX_Carrier, and the unit is T.
Figure 8 - Carrier generation theory TClk generates high and low level basic unit time TH and TL via basic 0/1 generator. TH and TL are decided by setting TX_SetBase1 and TX_SetBase0, and unit is T. TH is the basic unit time of high level time, and TL is the basic unit time of low level time.
T
T T TH TH High level envelope time
TTT TL
TT
TT TL
TT
Low level envelope time
Figure 9 - Code transmitting theory
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SC65D02P40
TYPICAL APPLICATION CIRCUIT
0.1 47 VDD 3V 1
22p
1 VDD
4M
GND 24 VPP 23 CYOUT 22 P30 21
RLED = 1K LED 1K
IRD
2 XIN
100
22p
3 XOUT 4 nRST
KRST
SC65D02P40A
5 P00 6 P01 7 P02 8 P03 9 P04 10 P05 11 P06 12 P07
K00 K10 K20 K30 K40 K50 K60 K70 K01 K11 K21 K31 K41 K51 K61 K71 K02 K12 K22 K32 K42 K52 K62 K72 K03 K13 K23 K33 K43 K53 K63 K73 K04 K14 K24 K34 K44 K54 K64 K74 K05 K15 K25 K35 K45 K55 K65 K75 K06 K16 K26 K36 K46 K56 K66 K76 K07 K17 K27 K37 K47 K57 K67 K77
P27 20 P26 19 P25 18 P24 17 P23 16 P22 15 P21 14 P20 13
Figure 11(a) - Typical application circuit (a)
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SC65D02P40
TYPICAL APPLICATION CIRCUIT
Figure11(b) - Typical application circuit(b)
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SC65D02P40
TYPICAL APPLICATION CIRCUIT
Figure11(c) - Typical application circuit (c) Note: The design precondition of above three typical application circuits is: if the circuit structure is not changed, the SC65D02C40 can directly take the place of SC65D02P40; Typical application circuit (a) is generally used in the situation with one LED lamp; Typical application circuit (b) is generally used in the situation with many LED lamps, if no need to light all the LEDs, you can use the typical application circuit (c) to save the cost.
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SC65D02P40
PACKAGE OUTLINE
SOP-24-375-1.27 Unit: mm
SOP-28-375-1.27
Unit: mm
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SC65D02P40
PACKAGE OUTLINE
SSOP-24-300-0.65 Unit: mm
SSOP-28-300-0.65
Unit: mm
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SC65D02P40
MOS DEVICES OPERATE NOTES:
Electrostatic charges may exist in many things. Please take following preventive measures to prevent effectively the MOS electric circuit as a result of the damage which is caused by discharge: The operator must put on wrist strap which should be earthed to against electrostatic. Equipment cases should be earthed. All tools used during assembly, including soldering tools and solder baths, must be earthed. MOS devices should be packed in antistatic/conductive containers for transportation.
NoteSilan reserves the right to make changes without notice in this specification for the improvement of the design and performance. Silan will supply the best possible product for customers.
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