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Pin Pin Name Buffer Power supply 5V Tolerant Signal Name I/O Description
93 TEST3 3.3V NO +3.3V Test pin. fixed High
94 XOUT 3.3V - XOUT 24MHz oscillator
95 XIN 3.3V NO XIN 24MHz oscillator
96 VSS DG Ground
97 3.3V +3.3V Power supply
98 TEST4 3.3V NO +3.3V Test pin. fixed High
99 XHSTWR/IOP41 3.3V YES RLY O Tel line relay control
100 XOPRBE/MUX/OP53 3.3V - SP-MUTE Speaker mute control
101 XRAS/IOP42 3.3V NO OPEN O Not used
102 XCAS1/IOP43 3.3V NO OPEN O Not used
103 XCAS2/IOP44 3.3V NO OPEN O Not used
104 DB3 3.3V YES D3 Data bus
105 DB2 3.3V YES 2 Data bus
106 DB4 3.3V YES 4 Data bus
107 DB1 3.3V YES 1 Data bus
108 DB5 3.3V YES 5 Data bus
109 DB0 3.3V YES 0 Data bus
110 DB6 3.3V YES 6 Data bus
111 DB7 3.3V YES D7 Data bus
112 XROMCS 3.3V - XROMCS ROM chip select
113 XRD 3.3V - /RD Read signal output
114 3.3V +3.3V Power supply
115 XWR 3.3V - /WR Write signal output
116 ADR0 3.3V - A0 Address bus
117 ADR1 3.3V - 1 Address bus
118 ADR2 3.3V - 2 Address bus
119 VSS DG Ground
120 ADR3 3.3V - 3 Address bus
121 ADR4 3.3V - 4 Address bus
122 ADR5 3.3V - 5 Address bus
123 ADR6 3.3V - 6 Address bus
124 ADR7 3.3V - 7 Address bus
125 ADR8 3.3V - 8 Address bus
126 ADR9 3.3V - 9 Address bus
127 ADR10 3.3V - 10 Address bus
128 VSS DG Ground
129 3.3V +3.3V Power supply
130 ADR11 3.3V - 11 Address bus
131 ADR12 3.3V - 12 Address bus
132 RBA0 3.3V - A13 Bank address
133 RBA1 3.3V - 14 Bank address
134 RBA2 3.3V - 15 Bank address
135 RBA3 3.3V - 16 Bank address
136 RBA4 3.3V - 17 Bank address
137 RBA5/OP 3.3V - 18 Not used
138 RBA6/IOP 3.3V NO 19 O Not used
139 XRESCS1/OP72 3.3V - OPEN Not used
140 XRESCS2/OP71 3.3V - OPEN Not used
141 XMDMCS/OP 3.3V - OPEN Not used
142 VSS DG Ground
143 XRESCS3/OP52 3.3V - OPEN Not used
144 20KOSC/IOP56 3.3V YES OPEN O Not used
145 ADR13 3.3V - OPEN Not used
146 ADR14 3.3V - OPEN Not used
147 3.3V +3.3V Power supply
148 ADR15 3.3V - OPEN Not used
149 RM0/IOP00 3.3V YES T5 O Motor control
150 RM1/IOP01 3.3V YES T4 O Motor control
151 RM2/IOP02 3.3V YES T3 O Motor control
152 RM3/IOP03 3.3V YES T2 O Motor control
153 RXE/IP04 3.3V YES T0 O Motor control
154 TM0/IOP10 3.3V YES LEDON O CIS LED control
155 TM1/IOP11 3.3V YES OPEN O Not used
156 TM2/IOP12 3.3V YES OPEN O Not used
157 TM3/IOP13 3.3V YES OPEN O Not used
158 TXE/IP14 3.3V YES PULL DOWN I Pull down
159 STB1 MULT3/5 NO STB1 O Thermal head strobe 1
103
KX-FT21RS