Philips PCF2116CU-7, PCF2116GHZ-F1, PCF2116GU-10, PCF2114AU-12-F1, PCF2114AU-7 Datasheet

DATA SH EET

Product specification
Supersedes data of 1996 Oct 25
File under Integrated Circuits, IC12

1997 Apr 07

INTEGRATED CIRCUITS

PCF2116 family

LCD controller/drivers

1997 Apr 07 2

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

CONTENTS

1 FEATURES
2 APPLICATIONS
3 GENERAL DESCRIPTION

3.1 Packages
4 ORDERING INFORMATION
5 BLOCK DIAGRAM
6 PINNING
7 PIN FUNCTIONS

7.1 RS: register select (parallel control)

7.2 R/W: read/write (parallel control)

7.3 E: data bus clock

7.4 DB0 to DB7: data bus

7.5 C1 to C60: column driver outputs

7.6 R1 to R32: row driver outputs

7.7 VLCD: LCD power supply

7.8 V0: VLCD control input

7.9 OSC: oscillator

7.10 SCL: serial clock line

7.11 SDA: serial data line

7.12 SA0: address pin

7.13 T1: test pad
8 FUNCTIONAL DESCRIPTION

8.1 LCD supply voltage generator, PCF2114x and
PCF2116x

8.2 LCD supply voltage generator, PCF2116K

8.3 Character generator ROM (CGROM)

8.4 LCD bias voltage generator

8.5 Oscillator

8.6 External clock

8.7 Power-on reset

8.8 Registers

8.9 Busy Flag

8.10 Address Counter (AC)

8.11 Display data RAM (DDRAM)

8.12 Character generator ROM (CGROM)

8.13 Character generator RAM (CGRAM)

8.14 Cursor control circuit

8.15 Timing generator

8.16 LCD row and column drivers

8.17 Programming MUX 1 : 16 displays with the
PCF2114x

8.18 Programming MUX 1 : 32 displays with the
PCF2114x

8.19 Reset function

9 INSTRUCTIONS

9.1 Clear display

9.2 Return home

9.3 Entry mode set

9.4 Display on/off control

9.5 Cursor/display shift

9.6 Function set

9.7 Set CGRAM address

9.8 Set DDRAM address

9.9 Read busy flag and address

9.10 Write data to CGRAM or DDRAM

9.11 Read data from CGRAM or DDRAM
10 INTERFACE TO MICROCONTROLLER

(PARALLEL INTERFACE)

11 INTERFACE TO MICROCONTROLLER

(I2C-BUS INTERFACE)

11.1 Characteristics of the I2C-bus

11.2 Bit transfer

11.3 START and STOP conditions

11.4 System configuration

11.5 Acknowledge

11.6 I2C-bus protocol
12 LIMITING VALUES
13 HANDLING
14 DC CHARACTERISTICS
15 DC CHARACTERISTICS (PCF2116K)
16 AC CHARACTERISTICS
17 TIMING CHARACTERISTICS
18 APPLICATION INFORMATION

18.1 8-bit operation, 1-line display using internal
reset

18.2 4-bit operation, 1-line display using internal
reset

18.3 8-bit operation, 2-line display

18.4 I2C operation, 1-line display

18.5 Initializing by instruction

19 BONDING PAD LOCATIONS
20 PACKAGE OUTLINE
21 SOLDERING
22 DEFINITIONS
23 LIFE SUPPORT APPLICATIONS
24 PURCHASE OF PHILIPS I2C COMPONENTS

1997 Apr 07 3

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

1 FEATURES

• Single chip LCD controller/driver

• 1 or 2-line display of up to 24 characters per line, or

2 or 4 lines of up to 12 characters per line

• 5 × 7 character format plus cursor; 5 × 8 for kana
(Japanese syllabary) and user defined symbols

• On-chip:
– generation of LCD supply voltage (external supply

also possible)
– generation of intermediate LCD bias voltages
– oscillator requires no external components (external

clock also possible)

• Display data RAM: 80 characters

• Character generator ROM: 240 characters

• Character generator RAM: 16 characters

• 4 or 8-bit parallel bus or 2-wire I2C-bus interface

• CMOS/TTL compatible

• 32 row, 60 column outputs

• MUX rates 1 : 32 and 1 : 16

• Uses common 11 code instruction set

• Logic supply voltage range, VDD− VSS: 2.5 to 6 V

• Display supply voltage range, VDD− V

LCD

: 3.5 to 9 V

• Low power consumption

• I2C-bus address: 011101 SA0.

2 APPLICATIONS

• Telecom equipment

• Portable instruments

• Point-of-sale terminals.

3 GENERAL DESCRIPTION

The PCF2116 family of LCD controller/drivers consists of
the PCF2116x, the PCF2114x and the PCF2116K.
The term ‘PCF2116’ is used to refer to all devices for
common information. Specific information is given in
separate paragraphs.

The ‘x’ in ‘PCF2116x’ and ‘PCF2114x’ represents a
specific letter code for a character set in the character
generator ROM (CGROM). The different character sets
currently available are specified by the letters A, C, and G
(see Figs 8 to 10). Other character sets are available on
request.

The PCF2116 is a low-power CMOS LCD controller and
driver, designed to drive a split screen dot matrix LCD
display of 1 or 2 lines by 24 characters or 2 or 4 lines by
12 characters with 5 × 8 dot format. All necessary
functions for the display are provided in a single chip,
including on-chip generation of LCD bias voltages,
resulting in a minimum of external components and lower
system power consumption. The chip contains a character
generator and displays alphanumeric and kana
(Japanese) characters. The PCF2116 interfaces to most
microcontrollers via a 4 or 8-bit bus or via the 2-wire
I

2

C-bus. To allow partial VDD shutdown the ESD protection
system of the SCL and SDA pins does not use a diode
connected to VDD.

The PCF2116K differs from the other members of the
family in that:

• V

LCD/VOP

generation is different (see Section 8.1)

• It is available with character set C only (see Fig.9).

4 ORDERING INFORMATION

Note

1. The letter ‘x’ in the type number represents the letter of the required built-in character set: A, C or G.

TYPE

NUMBER

(1)

PACKAGE

NAME DESCRIPTION VERSION

PCF2116xU/10 − chip on flexible film carrier −
PCF2114xU/10 − chip on flexible film carrier −
PCF2116xU/12 − chip with bumps on flexible film carrier −
PCF2114xU/12 − chip with bumps on flexible film carrier −
PCF2116xHZ LQFP128 plastic low profile quad flat package; 128 leads; body 14 × 20 × 1.4 mm SOT425-1

1997 Apr 07 4

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

5 BLOCK DIAGRAM

Fig.1 Block diagram (pin numbers for LQFP128 package).

andbook, full pagewidth

SHIFT REGISTER

32-BIT

MGA797 - 1

V

SS

V

DD

CHARACTER

GENERATOR

RAM

(CGRAM)

16

CHARACTERS

CHARACTER
GENERATOR

ROM

(CGROM)

240

CHARACTERS

CURSOR + DATA CONTROL

5

5

SHIFT REGISTER

5 x 12-bit

60

DATA LATCHES

60

COLUMN DRIVERS

6

BIAS

VOLTAGE

GENERATOR

V

LCD

GENERATOR

93, 95, 97

60

32

ROW DRIVERS

8

DISPLAY DATA RAM

(DDRAM) 80 CHARACTERS

32

84 to 77, 115 to 122
76 to 69, 123 to 128,
1 and 4

ADDRESS

COUNTER (AC)

INSTRUCTION

DECODER

INSTRUCTION
REGISTER (IR)

DATA

REGISTER (DR)

BUSY
FLAG

78 8

I/O BUFFER

8

7

7

8

92

104, 106

109, 112

V

LCD

DISPLAY
ADDRESS
COUNTER

POWER - ON

RESET

TIMING

GENERATOR

OSCILLATOR

7

102

OSC

C1 to C60

R1 to R32

4

105, 103,

98, 96

4

108 110 113

DB0 to DB3 DB4 to DB7 E

RS

R/W

V

0

PCF2116

88

SCL

90

SDA

107

SA0

111

T1

94, 91,

89, 87

68, 65 to 38
35 to 5

1997 Apr 07 5

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

6 PINNING

SYMBOL LQFP128 FFC PAD TYPE DESCRIPTION

R31 1 27 O LCD row driver output
n.c. 2 and 3 −−not connected
R32 4 28 O LCD row driver output
C60 to C30 5 to 35 29 to 59 O LCD column driver outputs 60 to 30
n.c. 36 and 37 −−not connected
C29 to C2 38 to 65 60 to 87 O LCD column driver outputs 29to2
n.c. 66 and 67 −−not connected
C1 68 88 O LCD column driver output 1
R24 to R17 69 to 76 89 to 96 O LCD row driver outputs
R8 to R1 77 to 84 97 to 104 O LCD row driver outputs
n.c. 85 and 86 −−not connected
DB7 87 105 I/O 1 bit of 8-bit bidirectional data bus
SCL 88 106 I I

2

C-bus serial clock input
DB6 89 107 I/O 1 bit of 8-bit bidirectional data bus
SDA 90 108 I/O I

2

C-bus serial data input/output
DB5 91 109 I/O 1 bit of 8-bit bidirectional data bus
V

0

92 110 I control input for V

LCD

V

LCD1

93 111 I/O LCD supply voltage input/output 1
DB4 94 112 I/O 1 bit of 8-bit bidirectional data bus
V

LCD2

95 113 I/O LCD supply voltage input/output 2
DB3 96 114 I/O 1 bit of 8-bit bidirectional data bus
V

LCD3

97 115 I/O LCD supply voltage input/output 3
DB2 98 116 I/O 1 bit of 8-bit bidirectional data bus
n.c. 99 to 101 −−not connected
OSC 102 1 I oscillator/external clock input
DB1 103 2 I/O 1 bit of 8-bit bidirectional data bus
V

DD2

104 3 P supply voltage 2
DB0 105 4 I/O 1 bit of 8-bit bidirectional data bus
V

DD1

106 5 P supply voltage 1
SA0 107 6 I I

2

C-bus address pin
E 108 7 I data bus clock input (parallel control)
V

SS1

109 8 P ground (logic) 1

R/

W 110 9 I read/write input (parallel control)

T1 111 10 I test pad (connect to V

SS

)

V

SS2

112 11 P ground (logic) 2
RS 113 12 I register select input (parallel control)
n.c. 114 −−not connected
R9 to R16 115 to 122 13 to 20 O LCD row driver outputs
R25 to R30 123 to 128 21 to 26 O LCD row driver outputs

1997 Apr 07 6

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.2 Pin configuration (LQFP128).

handbook, full pagewidth

MBD451 - 1

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

17
18
19
20
21
22
23
24
25
26
27
28
29
30

102
101
100

99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73

394041424344454647

48

495051525354555657585960616263

64

128

127

126

125

124

123

122

121

120

119

118

117

116

115

114

113

112

111

110

109

108

107

106

105

104

103

31
32
33
34
35
36
37
38

72
71
70
69
68
67
66
65

PCF2116

R31

n.c.

n.c.
R32
C60
C59
C58
C57
C56

C55
C54
C53

C52
C51

C50
C49
C48
C47
C46
C45
C44
C43
C42
C41
C40
C39
C38
C37
C36
C35
C34
C33
C32
C31
C30

n.c.

n.c.
C29

OSC
n.c.
n.c.
n.c.
DB2

V
DB3

DB4

V
DB5
SDA

DB6
SCL
DB7
n.c.

n.c.
R1
R2
R3
R4
R5
R6
R7
R8
R17
R18
R19
R20
R21
R22
R23
R24
C1

n.c.
n.c.

C2

LCD3

V

LCD2

V

LCD1
0

C28

C27

C26

C25

C24

C23

C22

C21

C20

C19

C18

C17

C16

C15

C14

C13

C12

C11

C10

C9C8C7C6C5C4C3

R30

R29

R28

R27

R26

R25

R16

R15

R14

R13

R12

R11

R10

R9

n.c.

RS

T1

R/W

E

SA0

DB0VDB1

DD2

V

DD1

V

SS1

V

SS2

1997 Apr 07 7

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

7 PIN FUNCTIONS

7.1 RS: register select (parallel control)

RS selects the register to be accessed for read and write
when the device is controlled by the parallel interface.
RS = logic 0 selects the instruction register for write and
the Busy Flag and Address Counter for read. RS = logic 1
selects the data register for both read and write. There is
an internal pull-up on pin RS.

7.2 R/

W: read/write (parallel control)

R/W selects either the read (R/W = logic 1) or write
(R/W = logic 0) operation when control is by the parallel
interface. There is an internal pull-up on this pin.

7.3 E: data bus clock

The E pin is set HIGH to signal the start of a read or write
operation when the device is controlled by the parallel
interface. Data is clocked in or out of the chip on the
negative edge of the clock. Note that this pin must be tied
to logic 0 (V

SS

) when I2C-bus control is used.

7.4 DB0 to DB7: data bus

The bidirectional, 3-state data bus transfers data between
the system controller and the PCF2116. DB7 may be used
as the Busy Flag, signalling that internal operations are not
yet completed. In 4-bit operations the 4 higher order lines
DB4 to DB7 are used; DB0 to DB3 must be left open
circuit. There is an internal pull-up on each of the data
lines. Note that these pins must be left open circuit when
I

2

C-bus control is used.

7.5 C1 to C60: column driver outputs

These pins output the data for pairs of columns.
This arrangement permits optimized chip-on-glass (COG)
layout for 4-line by 12 characters.

7.6 R1 to R32: row driver outputs

These pins output the row select waveforms to the left and
right halves of the display.

7.7 V

LCD

: LCD power supply

Negative power supply for the liquid crystal display.
This may be generated on-chip or supplied externally.

7.8 V

0

: V

LCD

control input

The input level at this pin determines the generated V

LCD

output voltage.

7.9 OSC: oscillator

When the on-chip oscillator is used this pin must be
connected to V

DD

. An external clock signal, if used, is input

at this pin.

7.10 SCL: serial clock line

Input for the I

2

C-bus clock signal.

7.11 SDA: serial data line

Input/output for the I

2

C-bus data line.

7.12 SA0: address pin

The hardware sub-address line is used to program the
device sub-address for 2 different PCF2116s on the same
I

2

C-bus.

7.13 T1: test pad

Must be connected to V

SS

. Not user accessible.

8 FUNCTIONAL DESCRIPTION (see Fig.1)

8.1 LCD supply voltage generator, PCF2114x and
PCF2116x

The on-chip voltage generator is controlled by bit G of the
‘Function set’ instruction and V

0

.

V0 is a high-impedance input and draws no current from
the system power supply. Its range is between VSS and
VDD− 1 V. When V0 is connected to VDD the generator is
switched off and an external voltage must be supplied to
pin V

LCD

. This may be more negative than VSS.

When G = logic 1 the generator produces a negative
voltage at pin V

LCD

, controlled by the input voltage at
pin V0. The LCD operating voltage is given by the
relationship:

VOP= 1.8VDD− V

0

Where:

VOP=VDD− V

LCD

V

LCD=V0

−(0.8VDD)

When G = logic 0, the generated output voltage V

LCD

is

equal to V0 (between VSS and VDD). In this instance:

VOP=VDD− V

0

When V

LCD

is generated on-chip the V

LCD

pin should be

decoupled to VDD with a suitable capacitor. VDD and V

0

must be selected to limit the maximum value of VOPto 9 V.
Figure 3 shows the two generator control characteristics.

1997 Apr 07 8

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

8.2 LCD supply voltage generator, PCF2116K

In the PCF2116K version, V0 is connected through an
on-chip resistor (R0) to V

LCD

. Resistor R0 has a nominal
value of 1 MΩ and draws a typical current of 4 µA from the
pin V0. A constant voltage (equal to 1.34VDD) is always
present across R0.

The voltage range of the PCF2116K is between VSS and
VDD− 0.5 V (see Fig.4). When V0 is connected to VDD the
generator is switched off and an external voltage must be
supplied to pin V

LCD

. This may be more negative than VSS.

When G = logic 1 the generator produces a negative
voltage at pin V

LCD

, controlled by the input voltage at
pin V0. The LCD operating voltage is given by the
relationship:

VOP= 2.34VDD− V

0

Where:

VOP=VDD− V

LCD

V

LCD=V0

−(1.34VDD)

When G = logic 0, the generated output voltage V

LCD

is

equal to V0 (between VSS and VDD). In this instance:

VOP=VDD− V

0

8.3 Character generator ROM (CGROM)

The standard character sets A, C and G are available for
the PCF2114x and PCF2116x. Standard character set C is
available for the PCF2116K.

8.4 LCD bias voltage generator

The intermediate bias voltages for the LCD display are
also generated on-chip. This removes the need for an
external resistive bias chain and significantly reduces the
system power consumption. The optimum levels depend
on the multiplex rate and are selected automatically when
the number of lines in the display is defined.

The optimum value of V

OP

depends on the multiplex rate,
the LCD threshold voltage (Vth) and the number of bias
levels and is given by the relationships in Table 1.Using a
5-level bias scheme for 1 : 16 MUX rate allows VOP<5V
for most LCD liquids. The effect on the display contrast is
negligible.

8.5 Oscillator

The on-chip oscillator provides the clock signal for the
display system. No external components are required.
Pin OSC must be connected to VDD.

8.6 External clock

If an external clock is to be used, it must be input at
pin OSC. The resulting display frame frequency is given by
f

frame

=1⁄

2304fosc

. A clock signal must always be present,

otherwise the LCD may be frozen in a DC state.

8.7 Power-on reset

The power-on reset block initializes the chip after
power-on or power failure.

8.8 Registers

The PCF2116 has two 8-bit registers, an Instruction
Register (IR) and a Data Register (DR). The Register
Select signal (RS) determines which register will be
accessed.

The instruction register stores instruction codes such as
‘Display clear’ and ‘Cursor shift’, and address information
for the Display Data RAM (DDRAM) and Character
Generator RAM (CGRAM). The instruction register can be
written to, but not read, by the system controller.

The data register temporarily stores data to be read from
the DDRAM and CGRAM. When reading, data from the
DDRAM or CGRAM corresponding to the address in the
Address Counter is written to the data register prior to
being read by the ‘Read data’ instruction.

8.9 Busy Flag

The Busy Flag indicates the free/busy status of the
PCF2116. Logic 1 indicates that the chip is busy and
further instructions will not be accepted. The Busy Flag is
output to pin DB7 when RS = logic 0 and R/

W = logic 1.
Instructions should only be written after checking that the
Busy Flag is logic 0 or waiting for the required number of
clock cycles.

Table 1 Optimum values for V

OP

MUX RATE

NUMBER OF BIAS

LEVELS

VOP/V

th

DISCRIMINATION

Von/V

off

1 : 16 5 3.67 1.277
1 : 32 6 5.19 1.196

1997 Apr 07 9

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.3 VOP as a function of V0 control characteristics.

a. High-voltage mode VOP= 1.8VDD− V0.

b. Buffer mode VOP=VDD− V0.

MGA798

9

8

7

6

5

4

3.5
0123456

9 V

6 = V

DD

OP(min) DD

V = 0.8 x V 1

V

0

V

OP

5

4

3

2.5

OP(max) DD

V = 1.8 x V

G = 1

MGA799

9

8

7

6

5

4

3.5
0123456

6 = V

DD

V

0

V

OP

5

4

G = 0

1997 Apr 07 10

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.4 VOP as a function of V0 control characteristics (PCF2116K).

a. High-voltage mode VOP= 2.34VDD− V0.

b. Buffer mode VOP=VDD− V0.

MGA799

9

8

7

6

5

4

3.5
0123456

6 = V

DD

V

0

V

OP

5

4

G = 0

MBH667

9

8

7

6

5

4

3.5
0123456

9 V

6

V

0

V

OP

5

4 = V

DD

3

2.5

G = 1

V

OP(min)

= 1.34 × VDD + 0.5

1997 Apr 07 11

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

8.10 Address Counter (AC)

The Address Counter assigns addresses to the DDRAM
and CGRAM for reading and writing and is set by the
instructions ‘Set CGRAM address’ and
‘Set DDRAM address’. After a read/write operation the
Address Counter is automatically incremented or
decremented by 1.The Address Counter contents are
output to the bus (DB0 to DB6) when RS = logic 0 and
R/W = logic 1.

8.11 Display data RAM (DDRAM)

The display data RAM stores up to 80 characters of
display data represented by 8-bit character codes.
RAM 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.5.
With no display shift the characters represented by the
codes in the first 12 or 24 RAM locations starting at
address 00 in line 1 are displayed. Subsequent lines
display data starting at addresses 20, 40, or 60 Hex.
Figs 6 and 7 show the DDRAM-to-display mapping
principle 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 consecutive.
When the display is shifted each line wraps around
independently of the others (Figs 6 and 7).

When data is written into the DDRAM wrap-around occurs
from 4F to 00 in 1-line mode and from 27 to 40 and
67 to 00 in 2-line mode; from 13 to 20, 33 to 40, 53 to 60
and 73 to 00 in 4-line mode.

8.12 Character generator ROM (CGROM)

The character generator ROM generates 240 character
patterns in 5 × 8 dot format from 8-bit character codes.
Figures 8 to 10 show the character sets currently
available.

8.13 Character generator RAM (CGRAM)

Up to 16 user-defined characters may be stored in the
character generator RAM. The CGROM and CGRAM use
a common address space, of which the first column is
reserved for the CGRAM (see Fig.8). Figure 11 shows the
addressing principle for the CGRAM.

8.14 Cursor control circuit

The cursor control circuit generates the cursor (underline
and/or character blink as shown in Fig.12) at the DDRAM
address contained in the Address Counter. When the
Address Counter contains the CGRAM address the cursor
will be inhibited.

8.15 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.

8.16 LCD row and column drivers

The PCF2116 contains 32 row and 60 column drivers,
which 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 13 and 14 show typical waveforms.

In 1-line mode (1 : 16) the row outputs are driven in pairs:
R1/R17, R2/R18 for example. This allows the output pairs
to be connected in parallel, providing greater drive
capability.

Unused outputs should be left unconnected.

1997 Apr 07 12

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.5 DDRAM-to-display mapping; no shift.

handbook, 4 columns

12345 222324

00 01 02 03 04 15 16 17 18 19 4C 4D 4E 4F

non-displayed DDRAM addresses

Display
Position
(decimal)

DDRAM
Address
(hex)

1-line display

64 65 66 6740 41 42 43 44 55 56 57 58 59

00 01 02 03 04 15 16 17 18 19

24 25 26 27

non-displayed DDRAM address

DDRAM

(hex)

Address

2-line display

line 1

line 2

MLA792

handbook, 4 columns

123456789101112

non-displayed DDRAM addresses

DDRAM
Address
(hex)

4 line display

00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13

20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33

40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53

60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73

line 1

line 2

line 3

line 4

MLA793

1997 Apr 07 13

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.6 DDRAM-to-display mappi7ng; right shift.

27 00 01 02 03

67 40 41 42 43

14 15 16

54 55 56

DDRAM
Address

(hex)

line 1

line 2

2-line display

1 2 3 4 5 22 23 24

4F 00 01 02 03 14 15 16

Display
Position
(decimal)

DDRAM
Address
(hex)

1-line display

MLA802

13 01 02 03 04 05 06 07 08 09 0A

20 21 22 23 24 25 26 27 28 29 2A33

40 41 42 43 44 45 46 47 48 49 4A53

60 61 62 63 64 65 66 67 68 69 6A73

123456789101112

DDRAM
Address

(hex)

line 1

line 2

line 3

line 4

4-line display

00

MLA803

Fig.7 DDRAM-to-display mapping; left shift.

1 2 3 4 5 22 23 24

0501 02 03 04

16 17 18

41 42 43 44 45 56 57 58

0501 02 03 04

16 17 18

Display
Position
(decimal)

DDRAM
Address
(hex)

DDRAM
Address

(hex)

line 1

line 2

1-line display

2-line display

MLA815

01 02 03 04 05 06 07 08 09 0A 0B 0C

21 22 23 24 25 26 27 28 29 2A 2B 2C

41 42 43 44 45 46 47 48 49 4A 4B 4C

61 62 63 64 65 66 67 68 69 6A 6B 6C

123456789101112

DDRAM
Address

(hex)

line 1

line 2

line 3

line 4

4-line display

MLA816

1997 Apr 07 14

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.8 Character set ‘A’ in CGROM: PCF2116A; PCF2114A.

handbook, full pagewidth

MLB245 - 1

0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111

upper
4 bits

lower
6 bits

xxxx 0000

xxxx 0001

xxxx 0010

xxxx 0011

xxxx 0100

xxxx 0101

xxxx 0110

xxxx 0111

xxxx 1000

xxxx 1001

xxxx 1010

xxxx 1011

xxxx 1100

xxxx 1101

xxxx 1110

xxxx 1111 16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

1997 Apr 07 15

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.9 Character set ‘C’ in CGROM: PCF2116C; PCF2114C.

handbook, full pagewidth

MLB895

0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111

upper
4 bits

lower
4 bits

xxxx 0000

xxxx 0001

xxxx 0010

xxxx 0011

xxxx 0100

xxxx 0101

xxxx 0110

xxxx 0111

xxxx 1000

xxxx 1001

xxxx 1010

xxxx 1011

xxxx 1100

xxxx 1101

xxxx 1110

xxxx 1111 16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

CG
RAM 1

1997 Apr 07 16

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.10 Character set ‘G’ in CGROM: PCF2116G; PCF2114G.

handbook, full pagewidth

MLB896

0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111

upper
4 bits

lower
6 bits

xxxx 0000

xxxx 0001

xxxx 0010

xxxx 0011

xxxx 0100

xxxx 0101

xxxx 0110

xxxx 0111

xxxx 1000

xxxx 1001

xxxx 1010

xxxx 1011

xxxx 1100

xxxx 1101

xxxx 1110

xxxx 1111 16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

CG
RAM 1

1997 Apr 07 17

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.11 Relationship between CGRAM addresses and data and display patterns.

handbook, full pagewidth

MGA800 - 1

76543210 6543210 43210

higher

order

bits

lower

order

bits

lower
order

bits

higher

order

bits

lower
order

bits

higher

order

bits

00000000 0000000 0

001 000
010 000
011 0
100 0 00
101 00 0
110 000
111 00000

000 000
001 0 0 0
010

00 00011
100
101 00 00
110 00 00
111 00000

001

00000001 0001

00000010

00001111
00001111
00001111
00001111

010 0000

100
101
110
1

1
1
1
1

1
1
1
1

1
1
1
1

1
1
1
111

character codes

(DDRAM data)

CGRAM
address

character patterns

(CGRAM data)

character

pattern

example 1

cursor

position

character

pattern

example 2

Character code bits 0to 3 correspond to CGRAM address bits 3 to 6.
CGRAM address bits 0 to 2 designate character pattern line position. The 8th line is the cursor position and display is performed by logical OR with

the cursor. Data in the 8th line will appear in the cursor position.
Character pattern column positions correspond to CGRAM data bits 0 to 4, as shown in Fig.11 (bit 4 being at the left end).
As shown in Figs 8 and 11, CGRAM character patterns are selected when character code bits 4 to 7 are all logic 0. CGRAM data = logic 1

corresponds to selection for display.
Only bits 0 to 5 of the CGRAM address are set by the ‘Set CGRAM address’ instruction. Bit 6 can be set using the ‘Set DDRAM address’ instruction

or by using the auto-increment feature during CGRAM write. All bits 0 to 6 can be read using the ‘Read busy flag and address’ instruction.

1997 Apr 07 18

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.12 Cursor and blink display examples.

MGA801

cursor

5 x 7 dot character font alternating display

cursor display example blink display example

1997 Apr 07 19

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.13 Typical LCD waveforms; 1-line mode.

handbook, full pagewidth

MGA802 - 1

V

DD

V

2

V
V

5
LCD

ROW 1

COL 1

state 1 (ON)
state 2 (ON)

0.25 V

OP

0 V

state 1

1-line display
(1:16)

frame n 1frame n

ROW 9

ROW 2

COL 2

state 2

123 16123 16

34

V /V

V

DD

V

2

V
V

5
LCD

34

V /V

V

DD

V

2

V
V

5
LCD

34

V /V

V

DD

V

2

V
V

5
LCD

34

V /V

V

DD

V

2

V
V

5
LCD

3

4

V /V

0.25 V

OP

0.25 V

OP

0 V

0.25 V

OP

V

OP

V

OP

V

OP

V

OP

1997 Apr 07 20

Philips Semiconductors Product specification

LCD controller/drivers PCF2116 family

Fig.14 Typical LCD waveforms; 2-line mode.

handbook, full pagewidth

MGA803 - 1

V

DD

V

2

V
V
V
V

3
4

5
LCD

ROW 1

V

DD

V

2

V
V
V
V

3
4
5
LCD

V

DD

V

2

V
V
V
V

3
4
5
LCD

COL 1

V

DD

V

2

V
V
V
V

3
4
5
LCD

state 1 (ON)
state 2 (ON)

0.15 V

OP

0 V

V

OP

V

OP

V

OP

state 1

2-line display
(1:32)

frame n 1

frame n

ROW 9

ROW 2

COL 2

V

DD

V

2

V
V
V
V

3
4
5
LCD

0.15 V

OP

0.15 V

OP

0 V

0.15 V

OP

V

OP

state 2

123 3212 3 32