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A300_PCA9538_NXP.pdf
Ordering information Tamb = −40 °C to +85 °C Type number Topside Package mark Name Description Version PCA9538D PCA9538D SO16 plastic small outline package; 16 leads; body width 7.5 mm SOT162-1 PCA9538PW PCA9538 TSSOP16 plastic thin shrink small outline package; 16 leads; SOT403-1 body width 4.4 mm PCA9538BS
in „I²C-I/O-Expander mit TRI-state Output“ · Mikrocontroller und Digitale Elektronik ·
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Datei
I2C_TWI0_Address_and_Frequency_Scanner.ino
B1101.000x ... U11: DS3231 (RTC) I2C device found at address 0x73 = B0111.0011 = B1110.011x ... U7: PCA9538D (Portexpander) I2C device found at address 0x7C = B0111.1100 = B1111.100x ... U6: PCA8574D (Portexpander) ??? */ #include <Streaming.h> #include <Wire.h> #include <myToolbox.h> #include <AVRxDB_Pin.h
in „NXP PCA8574 hat Phänomen mit 2 Adressen“ · Mikrocontroller und Digitale Elektronik ·
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I2C_Sheet.pdf
C D S S C51 0u1 RV1 HD44780 LCD LCD C56 GPIO 11100 A1 A0 6 0u1 10K J34 VCC U10 AT24C256 1 8 6 U7 PCA9538 GND 1 GND 10100 A1 A0 7 Vcc SCL 5 A1 A0 VCC GND VCC 2 VCC 1K R16 WP SDA 0 0 0x70 c 3 VLCD A1 A0 0 1 0x71 1 A0 V P0 4 4 RS P0 1 2 2 5 0 0 0x50 3 A0 A1 4 1 0 0x72 3 A1 P1 6 5 R/W P1 VCC 0 1 0x51 * 1K
in „NXP PCA8574 hat Phänomen mit 2 Adressen“ · Mikrocontroller und Digitale Elektronik ·
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PDF
AVRnDxBoard.pdf
1K 1 R29 1K 2 A0 A1 1 1 VCC R30 1K 3 A2 SCL 6 JP11 JP10 LCD C25 4 5 2 2 GND SDA U9 J7 100n C24 6 PCA9538 100n C23 1 100uF 100n C20 3 3 1 D C 2 D 1 C 4 3 Q5 A0 V P0 2 5 4 NXV75UP 3 A1 P1 6 5 2 VCC A2 P2 R48 1K P3 7 6 1 U7 13 7 3 ~{INT} RTC DS323x P4 9 8 R31 VCC 10 9 P5 BAT1 4 5 14 SCL P6 11 10 100K VCC