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PCF2105MU 데이터시트 PDF




NXP Semiconductors에서 제조한 전자 부품 PCF2105MU은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 PCF2105MU 자료 제공

부품번호 PCF2105MU 기능
기능 LCD controller/driver
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PCF2105MU 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



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PCF2105MU 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
DATA SHEET
PCF2105
LCD controller/driver
Product specification
Supersedes data of 1997 Dec 08
File under Integrated Circuits, IC12
1998 Jul 30




PCF2105MU pdf, 반도체, 판매, 대치품
Philips Semiconductors
LCD controller/driver
Product specification
PCF2105
5 BLOCK DIAGRAM
handbook, full pagewidth
V LCD
111 BIAS
VOLTAGE
GENERATOR 6
C60 to C1
21 to 80
60
COLUMN DRIVERS
60
VDD 2
VSS 4
T1 101
DATA LATCHES
60
SHIFT REGISTER
5 x 12-bit
5
CURSOR + DATA CONTROL
5
CHARACTER
GENERATOR
RAM
(CGRAM)
16
CHARACTERS
CHARACTER
GENERATOR
ROM
(CGROM)
240
CHARACTERS
8
DISPLAY DATA RAM
(DDRAM) 80 CHARACTERS
7
ADDRESS
COUNTER (AC)
8
DATA
REGISTER (DR)
BUSY
FLAG
7
INSTRUCTION
DECODER
8
INSTRUCTION
REGISTER (IR)
87
8
R32 to R1
(1)
32
ROW DRIVERS
32
SHIFT REGISTER
32-BIT
PCF2105
OSCILLATOR
1
OSC
TIMING
GENERATOR
7 DISPLAY
ADDRESS
COUNTER
POWER - ON
RESET
8
102 to 109
DB7 to DB0
I/O BUFFER
98
E
100
R/W
99
RS
97
SCL
110 3
SDA
SA0
MGK846
(1) Pads 5 to 8 and 9 to 12 correspond with symbols R8 to R5 and R32 to R29.
Pads 13 to 20 and 81 to 88 correspond with symbols R24 to R17 and R9 to R16.
Pads 89 to 92 and 93 to 96 correspond with symbols R25 to R28 and R1 to R4.
Fig.1 Block diagram.
1998 Jul 30
4

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PCF2105MU 전자부품, 판매, 대치품
Philips Semiconductors
LCD controller/driver
Product specification
PCF2105
8.8 Display Data RAM (DDRAM)
The DDRAM stores up to 80 characters of display data,
represented by 8-bit character codes. DDRAM locations
not used for storing display data can be used as general
purpose RAM. The basic DDRAM-to-display mapping
scheme is shown in Fig.2. With no display shift, the
characters represented by the codes in the first
12 or 24 DDRAM locations, starting at address 00 in
line 1, are displayed. Subsequent lines display data
starting at addresses 20, 40, or 60 hexadecimal (hex).
Figures 3 and 4 show the DDRAM-to-display mapping
scheme when the display is shifted.
The address range for a 1-line display is 00 to 4F; for a
2-line display from 00 to 27 (line 1) and 40 to 67 (line 2);
for a 4-line display from 00 to 13, 20 to 33, 40 to 53 and
60 to 73 for lines 1, 2, 3 and 4 respectively. For 2 and
4-line displays the end address of one line and the start
address of the next line are not successive. When the
display is shifted each line wraps around independently of
the others (see Figs 3 and 4).
When data is written to the DDRAM, wrap-around occurs
from 4F to 00 in 1-line display and from 27 to 40 and
67 to 00 in 2-line display; from 13 to 20, 33 to 40, 53 to 60
and 73 to 00 in 4-line display.
8.9 Character Generator ROM (CGROM)
The CGROM generates 240 character patterns in 5 × 8
dot format from 8-bit character codes. Figure 5 shows the
character set currently available.
8.11 Cursor control circuit
The cursor control circuit generates the cursor (underline
and/or character blink as shown in Fig.7) at the DDRAM
address contained in the address counter. When the
address counter contains the CGRAM address the cursor
will be inhibited.
8.12 Timing generator
The timing generator produces the various signals
required to drive the internal circuitry. Internal chip
operation is not disturbed by operations on the data buses.
8.13 LCD row and column drivers
The PCF2105 contains 32 row drivers and 60 column
drivers. They connect the appropriate LCD bias voltages in
sequence to the display, in accordance with the data to be
displayed. The bias voltages and the timing are selected
automatically when the number of lines in the display is
selected. Figures 8 and 9 show typical waveforms.
In the 1-line display (MUX rate 1 : 16), the row outputs are
driven in pairs, for example R1/R17 and R2/R18.
This allows the output pairs to be connected in parallel,
thereby providing greater drive capability.
Unused outputs should be left unconnected.
8.10 Character Generator RAM (CGRAM)
Up to 16 user-defined characters may be stored in the
CGRAM. The CGROM and CGRAM use a common
address space, of which the first column is reserved for the
CGRAM (see Fig.5). Figure 6 shows the addressing
principle for the CGRAM.
1998 Jul 30
7

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관련 데이터시트

부품번호상세설명 및 기능제조사
PCF2105MU

LCD controller/driver

NXP Semiconductors
NXP Semiconductors

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