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MB89F051PFM Datasheet(PDF) 7 Page - Fujitsu Component Limited. |
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MB89F051PFM Datasheet(HTML) 7 Page - Fujitsu Component Limited. |
7 / 40 page MB89051 Series 7 s PIN DESCRIPTION (Continued) Pin No. Pin name Circuit type Function 1 P34/INT4/ SCK1 E General-purpose CMOS I/O pin The external interrupt input is a hysteresis input. (Level detection) SIO1 clock I/O 2 P35/INT5/ SCK2 E General-purpose CMOS I/O pin The external interrupt input is a hysteresis input. (Level detection) SIO2 clock I/O 3 P36/INT6/ SO2 B General-purpose CMOS I/O pin The external interrupt input is a hysteresis input. (Level detection) SIO2 serial data output 4 P37/INT7/SI2 E General-purpose CMOS I/O pin The external interrupt input is a hysteresis input. (Level detection) SIO2 serial data input 5 CLK1 M 6 MHz clock output pin (When external supply clock is at 6 MHz.) 6 CLK2 M 12 MHz clock output pin (When external supply clock is at 6 MHz.) 7P40/POW5 B General-purpose CMOS I/O pin This pin also serves as USB Down Port power control signal. 8P41/POW2 B General-purpose CMOS I/O pin This pin also serves as USB Down Port power control signal. 9P42/POW3 B General-purpose CMOS I/O pin This pin also serves as USB Down Port power control signal. 10 P43/POW4 B General-purpose CMOS I/O pin This pin also serves as USB Down Port power control signal. 11 P44/UCK E General-purpose CMOS I/O pin UART/S10 clock I/O 12 P45/UO B General-purpose CMOS I/O pin UART/S10 serial data output 13 P46/UI/ PWM1 N Nch open drain general-purpose I/O pin UART/S10 serial data input PWM timer 14 VSS Power supply pin (GND) 15 P47/PWM2 K Nch open drain general-purpose I/O pin PWM timer 16 MOD2 F An operating mode designation pin. Connect directly to Vss. 17 P53/SDA K Nch open drain general-purpose I/O pin Also serve as I2C interface data input/output pin. 18 P54/SCL K Nch open drain general-purpose I/O pin Also serve as I2C interface clock input/output pin. 19 RST I Reset pin (Reset on the negative logic low level.) 20 MOD0 F An operating mode designation pin. Connect directly to Vss. 21 MOD1 F An operating mode designation pin. Connect directly to Vss. |
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