поискавой системы для электроныых деталей |
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ST2608B датащи(PDF) 5 Page - Sitronix Technology Co., Ltd. |
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ST2608B датащи(HTML) 5 Page - Sitronix Technology Co., Ltd. |
5 / 34 page ST2608B 5/34 4 SIGNAL DESCRIPTIONS 1. Signal Function Groups Function Group Pad No. Designation Description Power VCC , PVCC, AVCC VCC: Power supply for system AVCC: Power supply for LCD function PVCC: Power supply for PSGO and PSGOB NOTE: PVCC level must not be higher than VDD level. Ground GND , PGND GND: System power ground PGND: Power ground for PSGO and PSGOB System control RESET , TEST, MMD/ CS0 RESET : Active low system reset signal input TEST: Leave this pin open when normal operation MMD/ CS0 : Memory modes selection pin Normal mode: Enable internal ROM. MMD/ CS0 is connected to GND. Emulation mode: Disable internal ROM. MMD/ CS0 is connected to the chip-select pin of external ROM. During reset period, the MMD/ CS0 is an internally pulled-up input pin. After reset cycles, MMD/ CS0 is changed to be an output pin. It will output signal CS0 . Clock XIO,OSCI OSCXO,OSCXI, , High frequency oscillator (OSC) mode selected by code-option Crystal mode: One crystal or resonator should be connected between OSCI and XIO Resistor oscillator mode: One resistor should be connected between OSCI and VCC OSCXI, OSCXO: Connect one 32768Hz crystal between these two pins when using low frequency oscillator WR / SEG9, RD / SEG8 External memory R/W control signals / LCD Segment drivers A[22:0]/SEG32~SEG10 External memory address bus / LCD Segment drivers External memory bus signals / LCD drivers D[7:0]/SEG7~SEG0 External memory data bus / LCD Segment drivers PSG/PWM DAC PSGO, PSGOB PSG outputs. Connect to one buzzer or speaker Keyboard scan signal (return line) PA7~0 I/O port A GPIO / LCD drivers PB7~0/SEG63~SEG56 I/O port B / LCD Segment drivers Chip selects / LCD drivers 1 ~ CS5 /PD4~0 / SEG37~SEG33, CS6 /A23/PD5 /SEG38 I/O port D and chip-select outputs / LCD Segment drivers UART RXD0/PC7,TXD0/PC6, RXD1/PD7/SEG40,TXD1/ PD6/SEG39 UART signals and I/Os / LCD Segment drivers SPI DATA_READY /PC5 , SS /PC4 , SDO/PC3 , SDI/PC2 , SCK/PC1 SPI signals and I/Os |
Аналогичный номер детали - ST2608B |
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Аналогичное описание - ST2608B |
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