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MB90653APF Datasheet(PDF) 6 Page - Fujitsu Component Limited. |
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MB90653APF Datasheet(HTML) 6 Page - Fujitsu Component Limited. |
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6 / 120 page  6 MB90650A Series s PIN DESCRIPTION (Continued) *1: FPT-100P-M05 *2: FPT-100P-M06 Pin no. Pin name Circuit type Function LQFP*1 QFP*2 80 82 X0 A Crystal oscillator pin 81 83 X1 A Crystal oscillator pin 77 79 X1A B Crystal oscillatort pins (32 kHz) 78 80 X0A B Crystal oscillatort pins (32 kHz) 47 to 49 49 to 51 MD0 to MD2 D Operating mode selection pins Connect directly to VCC or VSS. 50 52 TEST D Test input pin This pin must always be fixed to “H”. 75 77 RST C Reset input pin 83 to 90 85 to 92 P00 to P07 E (STBC) General-purpose I/O ports Pull-up resistors can be set (RD07 to RD00 = “1”) using the pull-up resistor setting register (RDR0). The setting does not apply for ports set as outputs (D07 to D00 = “1”: invalid at the output setting). AD00 to AD07 In external bus mode, the pins function as the lower data I/O or lower address outputs (AD00 to AD07). 91 to 98 93 to 100 P10 to P17 E (STBC) General-purpose I/O ports Pull-up resistors can be set (RD17 to RD10 = “1”) using the pull-up resistor setting register (RDR1). The setting does not apply for ports set as outputs (D17 to D10 = “1”: invalid at the output setting). AD08 to AD15 In 16-bit external bus mode, the pins function as the upper data I/O or middle address outputs (AD08 to AD15). 99, 100, 1 to 6 1, 2, 3 to 8 P20, P21, P22 to P27 I (STBC) General-purpose I/O ports In external bus mode, pins for which the corresponding bit in the HACR register is “0” function as the P20 to P27 pins. A16, A17, A18 to A23 In external bus mode, pins for which the corresponding bit in the HACR register is “1” function as the upper address output pins (A16 to A23). 79 P30 I (STBC) General-purpose I/O port Functions as the ALE pin in external bus mode. ALE Functions as the address latch enable signal. 810 P31 I (STBC) General-purpose I/O port Functions as the RD pin in external bus mode. RD Functions as the read strobe output (RD). 10 12 P32 I (STBC) General-purpose I/O port Functions as the WRL pin in external bus mode if the WRE bit in the ECSR register is “1”. WRL Functions as the lower data write strobe output (WRL). |
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