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PCF2119X Datasheet(PDF) 6 Page - NXP Semiconductors |
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PCF2119X Datasheet(HTML) 6 Page - NXP Semiconductors |
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6 / 83 page  PCF2119X All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 7 — 15 November 2010 6 of 83 NXP Semiconductors PCF2119x LCD controllers/drivers 7.2 Pin description Table 3. Pin description Symbol Pin Description VDD1 1 to 6 supply voltage 1 (logic) VDD2 7 to 14 [1] supply voltage 2 (for high voltage generator) VDD3 15 to 18 [1] supply voltage 3 (for high voltage generator) E19 [2] data bus clock input • set HIGH to signal the start of a read or write operation • data is clocked in or out of the chip on the negative edge of the clock T1 and T2 20 and 21 test pins • must be connected to VSS1 VSS1 22 to 29 [3] ground supply voltage 1 • for all circuits, except of high voltage generator VSS2 30 to 35 [3] ground supply voltage 2 • for high voltage generator VLCDSENSE 36 input for voltage multiplier regulation circuitry and for the bias level generation • if VLCD is generated internally then this pin must be connected to VLCDOUT and VLCDIN • if VLCD is generated externally then this pin must be connected to VLCDIN only VLCDOUT 37 to 43 VLCD output • if VLCD is generated internally then this pin must be connected to VLCDIN and to VLCDSENSE • if VLCD is generated externally then this pin must be left open-circuit VLCDIN 44 to 49 input for LCD bias level generator • if VLCD is generated internally then this pin must be connected to VLCDOUT and to VLCDSENSE • if VLCD is generated externally then this pin must be connected to VLCDSENSE and to the external VLCD power supply dummy 50 [4] - R8 to R1, R17, R17DUP, R18, R9 to R16 51 to 58, 59, 100 141, 142 to 149 LCD row driver output • R17 has two pins: R17 and R17DUP • R17 and R18 drive the icons C80 to C41, C40 to C1 60 to 99, 101 to 140 LCD column driver output dummy 150 [4] - SCL 151 and 152 [5] I2C-bus serial clock input T3 153 test pin • open-circuit • not user accessible POR 154 external Power-On Reset (POR) input |
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Similar Description - PCF2119X |
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