Panasonic KX-FT21RS - Manual (Page 104)

Pin Pin Name Buffer Power supply 5V Tolerant Signal Name I/O Description
160 STB2 MULT3/5 NO STB2 O Thermal head strobe 2
161 STB3 MULT3/5 NO OPEN O Not used
162 STB4 MULT3/5 NO OPEN O Not used
163 THDAT MULT3/5 NO TH DATA O Thermal data
164 VSS DG Ground
165 MULT3/5 - +5V Power supply for THCLK DAT LAT STB
166 THCLK MULT3/5 NO TH CLK O Thermal head clock
167 THLAT MULT3/5 NO TH LAT O Thermal head latch
168 STBNP 3.3V YES CIS SEL
169 3.3V +3.3V Power supply
170 TXD2/IOP 3.3V YES TH ON O Thermal head 24V ON
171 RXD2/IOP 3.3V YES RS I/O LCD control
172 RTS2/IOP 3.3V YES OPEN O Not used
173 CTS2/IOP 3.3V YES CIS ON O Not used
174 DSR2/IOP 3.3V YES MOTOR PO. I Motor position detection
175 DCD2/IOP 3.3V YES OPEN O Not used
176 DTR2/IOP 3.3V YES OPEN O Not used
177 RI2/IOP 3.3V YES OPEN O Not used
178 XRSTSWI/IP83 3.3V YES PULL DOWN Pull down
179 KEYIN0 3.3V YES KIN0 I/O Key read
180 KEYIN1 3.3V YES KIN1 I/O Key read
181 KEYIN2 3.3V YES KIN2 I/O Key read document sensor control
182 KEYIN3 3.3V YES KIN3 I/O Key read read start position sensor control
183 KEYIN4 3.3V YES OPEN O Not used
184 KEYIN5 3.3V YES OPEN O Not used
185 OPLED 3.3V YES OPESEL OD Operation panel control
186 VSS DG GND
187 3.3V 3.3V OD Power supply
188 KSTART 3.3V YES KSTART OD LCD control
189 KLATCH 3.3V YES KLATCH OD Key scan LCD control
190 KSCLK 3.3V YES KSCLK OD Key scan LCD control
191 KTXD 3.3V YES KTXD I Key scan LCD control
192 KRXD 3.3V YES KRXD O Document read start position sensor
193 ADSEL1 3.3V YES ADSEL1 Thermal head temperature detection trigger
194 VSSC DG Ground for analog image process
195 VREFB Analog - VREFB A/D reference-
196 VREFT Analog - VREFT A/D reference+
197 BIAS Analog - BIAS
198 VREFH Analog - VREFH A/D reference center
199 VDDC +3.3V Power supply for analog image process
200 VSSA DG Ground for analog image process
201 VDDA +3.3V Power supply for analog image process
202 VDDB +3.3V Power supply for analog image process
203 VCL Analog - VCL Clamp level
204 AIN3 Analog - AIN3
205 AIN1 Analog - AIN1 Analog image signal (CIS output signal input)
206 AMON Analog - OPEN Not used
207 AIN2 Analog - AIN2 Thermistor voltage detection
208 VSSB DG Ground for analog image process
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KX-FT21RS