Driver Controller. VK2C23 Datasheet

VK2C23 Controller. Datasheet pdf. Equivalent


Yongjia VK2C23
VK2C23 56×4 / 52×8 LCD Driver Controller
General Description
The VK2C23 device is a memory mapping and multi-function LCD controller driver. The Display
segments of the device are 224 patterns (56 segments and 4commons) or 416 patterns (52 segments and
8commons). The software configuration feature of the VK2C23 device makes it suitable for multiple LCD
applications including LCD modules and display subsystems. The VK2C23 device communicates
with most microprocessors / microcontrollers via a two-line bidirectional I2C-bus.
Features
• Operating voltage: 2.4 ~ 5.5V
• Internal 32kHz RC oscillator
• Versatile blinking modes
• R/W address auto increment
• Bias: 1/3 or 1/4; Duty:1/4 or 1/8
• Internal 16-step voltage adjustment to adjust LCD
• Internal LCD bias generation with voltage-follower operating voltage
buffers
• Low power consumption
I2C-bus interface
• Provides VLCD pin to adjust LCD operating voltage
• Two Selectable LCD frame frequencies: 80Hz or
160Hz
• Up to 52 x 8 bits RAM for display data storage
• Manufactured in silicon gate CMOS process
• Package Type: 48LQFP, 64LQFP, Chip and
Goldbump chip.
• Display patterns:
56 x 4 patterns: 56 segments and 4 commons
52 x 8 patterns: 52 segments and 8 commons
Applications
• Electronic meter
• Water meter
• Gas meter
• Heat energy meter
Block Diagram
•Household appliance
•Games
•Telephone
•Consumer electronics
VSS
SDA
SCL
VDD
VCCA2
VLCD
Power_on reset
I2C
Controller
Internal RC
Oscillator
8 Display RAM
52*8bits
Timing
generator
Internal
voltage
adjustment
OP4
R
OP3
R
OP2
R
OP1
R
LCD bias generator
LCD
Voltage
Selector
Column
/Segment
driver
output
COM0
COM3
COM4/SEG0
COM7/SEG3
SEG4
Segment
driver
output
SEG55
Rev. 1.20
1 November 07 , 2017


VK2C23 Datasheet
Recommendation VK2C23 Datasheet
Part VK2C23
Description LCD Driver Controller
Feature VK2C23; VK2C23 56×4 / 52×8 LCD Driver Controller General Description The VK2C23 device is a memory mapping .
Manufacture Yongjia
Datasheet
Download VK2C23 Datasheet




Yongjia VK2C23
17 18 19 20 21 22 23 24 25 26 27 28
VK2C23 56×4 / 52×8 LCD Driver Controller
Pin Assignment
46 45 44 43 42 41 40 3938 37
36
35
34
33
HT16C23
48 LQFP-A
32
31
30
29
28
27
26
25
1516 17 18 19 20 2122 23 24
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
VDD
SDA
SCL
VSS
COM0
COM1
COM2
COM3
COM4/SEG0
COM5/SEG1
COM6/SEG2
COM7/SEG3
SEG4
SEG5
SEG6
SEG7
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1 48
2 47
3 46
4 45
5 44
6
7 VDD
8 SDA
9
SCL
VSS
1C0OM0
11COM1
48 47 46 45 44 43 42 41 40 3938 37
1 36
2 HT16C23 35
3 64 LQFP-A 34
4 33
5 32
6
VK2C23 B
31
43
SEG427
SEG4126
SSSEEEGGG4309222543
SEG3822
1C2OM2 7
48 LQFP-A
30 SEG3721
1C3OM3 8
29 SEG3620
1C4OM4
1CC5OOMM56
1C6O17M178
9
10
11
19122103
2114
125212631274182159226022712228
28
27
26
223923420531
SEG3519
3SSS2EEEGGG3343111876
SEG39
SEG38
SEG37
VDD
SEG36
SDA
SEG35
SCL
SEG34
VSS
SEG33
COM0
SEG32
COM1
SEG31
COM2
SEG30
COM3
SEG29COM4/SEG0
SEG28COM5/SEG1
SEG27COM6/SEG2
SEG26COM7/SEG3
SEG25
SEG4
SEG24
SEG5
SEG6
SEG7
64 63 62 61 60 59 58 57 56 55 54 53
1
2
3
4
5
6
7
8 HT16C23
9 64 LQFP-A
10
11
12
13
14
15
16
17 18 19 20 21 22 23 24 25 26 27 28
46 45 44 43 42 41 40 3938 37
36
35
34
33
HT16C23
48 LQFP-A
32
31
30
29
28
27
26
25
1516 17 18 19 20 2122 23 24
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
VDD
SDA
SCL
VSS
COM0
COM1
COM2
COM3
COM4/SEG0
COM5/SEG1
COM6/SEG2
COM7/SEG3
SEG4
SEG5
SEG6
SEG7
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1 48
2 47
3 46
4 45
5 44
6 43
7 42
8
VK2C23 A
41
9
64 LQFP-A
40
10 39
11 38
12 37
13 36
14 35
15 34
16 33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
Note: 1. Application at VDD ≤ VLCD or VLCD ≤ VDD.
2. When the 48-pin LQFP package is selected, this device does not support LCD 1/4 duty.
3. The VCCA2 pad is internally connected with the VLCD pad.
Rev. 1.20
2 November 07 , 2017



Yongjia VK2C23
Pad assignment for COB
VK2C23 56×4 / 52×8 LCD Driver Controller
1 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
VDD
2
SDA
SCL
Option
VSS
COM0
COM1
COM2
COM3
COM4/SEG0
COM5/SEG1
COM6/SEG2
COM7/SEG3
SEG4
SEG5
SEG6
SEG7
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
19
N.C.
9
(0, 0)
50 SEG38
49 SEG37
48 SEG36
47 SEG35
46 SEG34
45 SEG33
44 SEG32
43 SEG31
42 SEG30
41 SEG29
40 SEG28
39 SEG27
38 SEG26
37 SEG25
36 SEG24
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
Chip size: 1843 x 2018μm2
Note: 1. The option (pad 5) must be bonded to VDD or floating.
2. The IC substrate should be connected to VSS in the PCB layout artwork.
3. VLCD (pad 68) and VCCA2 (pad 1) must be bonded together for the application at VDD ≤ VLCD or
VLCD ≤ VDD.
Internal voltage adjustment (IVA)
set command
DE bit
VE bit
VLCD
(pad 68)
SEG55
(pad 67)
Note
0
0
Input
Null VLCD support internal bias voltage.
0
1
Input
Null
Internal Voltage Adjustment is null
VLCD support internal bias voltage
1
0
Input
Output
VLCD support internal bias voltage
1
1
Input
Output
VLCD support internal bias voltage
4. VDD (pad2) and VCCA2 (pad 1) must be bonded together for the application at VLCD VDD.
Internal voltage adjustment (IVA)
set command
DE bit
VE bit
00
01
10
11
VLCD
(pad 68)
Input
Output
Floating
Floating
SEG55
(pad 67)
Null
Null
Output
Output
Note
VLCD support internal bias voltage.
Detect the internal bias voltage
VDD support internal bias voltage
VDD support internal bias voltage
VDD support internal bias voltage
Rev. 1.20
3 November 07 , 2017





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