PCF2119VU 데이터 시트보기 (PDF) - NXP Semiconductors.

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PCF2119VU

LCD controllers/drivers

NXP Semiconductors. 

NXP Semiconductors

6. Block diagram

PCF2119x

LCD controllers/drivers

C1 to C80

R17DUP

R1 to R18

VLCDIN

44 to 49

BIAS

VOLTAGE

GENERATOR

60 to 99,

101 to 140

80

COLUMN DRIVERS

80

VLCDOUT

VLCDSENSE

37 to 43

VLCD

36

GENERATOR

DATA LATCHES

80

SHIFT REGISTER 5 × 12 BIT

5

CURSOR AND DATA CONTROL

VDD1

VDD2

VDD3

1 to 6

7 to 14

15 to 18

VSS1

VSS2

22 to 29

30 to 35

5

CHARACTER

GENERATOR

RAM (128 × 5)

(CGRAM)

16 CHARACTERS

8

CHARACTER

GENERATOR

ROM

(CGROM)

240 CHARACTERS

100

51 to 59,

141 to 149

18

ROW DRIVERS

18

SHIFT REGISTER 18-BIT

OSCILLATOR

168 OSC

TIMING

GENERATOR

T1 20

T2 21

T3 153

163

DB3/SA0

7

DISPLAY DATA RAM

(DDRAM)

80 CHARACTERS/BYTES

7

ADDRESS COUNTER

(AC)

7

7

INSTRUCTION

DECODER

DATA

REGISTER

(DR)

BUSY

FLAG

8

INSTRUCTION

REGISTER

8

8

I/O BUFFER

160 to 162 164 to 167 19

151, 156,

158 159 152 157

7

DISPLAY

ADDRESS

COUNTER

155

PD

PCF2119X

154

POR

DB0 to DB2

Fig 1. Block diagram

DB4 to DB7

E R/W RS SCL SDA

mgw571

PCF2119X_5

Product data sheet

Rev. 05 — 13 August 2009

© NXP B.V. 2009. All rights reserved.

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