SC230 SILAN [Silan Microelectronics Joint-stock], SC230 Datasheet

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SC230

Manufacturer Part Number
SC230
Description
GENERAL 32X3 SEG LCD DISPLAY DRIVER WITH 1/3 DUTY
Manufacturer
SILAN [Silan Microelectronics Joint-stock]
Datasheet
GENERAL 32X3 SEG LCD DISPLAY DRIVER WITH 1/3 DUTY
DESCRIPTIONS
FEATURES
APPLICATIONS
ORDERING INFORMATION
BLOCK DIAGRAM
HANGZHOU MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
SC230 is a general-purpose external LCD driver.
* Support max. 32×3 LCD SEG
* Support max. 24 keys input
* 1/3 duty, 1/2 bias
* Key input and LCD output can be processed at the same time
* SEG0/P1~SEG3/P4 can be as LCD or common output
* LCD driver
Device
SC230
16
15
14
24
32
21
25
27
RESET
KS1
KS4
XTout
XTin
KI1
KI6
DO
Xout
QFP-64-14 X 20-1.0
11
I/O ports
OSC
Package
12
Xin
GND
288 x 4-Bit
8-bit timer/
10
Counter 0
RAM
Interrupt control
ALU
V
9
2/4 K Bytes
DD
WDT
ROM
Basic
timer
Instruction
register
PSW
DI
PC
SP
Input ports
19
Clock
timer
18
CLK
controller
driver/
LCD
QFP-64-14x20-1.0
REV:1.4
VLC0
BIAS
COM2
COM0
SEG31
SEG0
VLC2
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2004.08.03
SC230

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SC230 Summary of contents

Page 1

... GENERAL 32X3 SEG LCD DISPLAY DRIVER WITH 1/3 DUTY DESCRIPTIONS SC230 is a general-purpose external LCD driver. FEATURES * Support max. 32×3 LCD SEG * Support max. 24 keys input * 1/3 duty, 1/2 bias * Key input and LCD output can be processed at the same time * SEG0/P1~SEG3/P4 can be as LCD or common output ...

Page 2

... C,V =0v) amb SS Test Conditions IH1 V KI1~KI6 IH2 =5V, R=33k osc tcp tcs tch DO SC230 Ratings -0.3~6.5 +0.3 DD +0.3 DD -20~+70 Min. Typ. Max. 4.5 6 0.3V DD 2.0 26 1524 26 1524 26 1524 26 1524 26 1524 26 1524 26 1524 10 20 ...

Page 3

... X out in 13 TEST OUT HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Pin descriptions LCD COM No connection LCD bias control LCD voltage input Power supply(4.5V~6.0V) Ground Crystal oscillator input/output Connect to ground Connect to ground No connection SC230 (To be continued) REV:1.4 2004.08.03 Page ...

Page 4

... SEG21 55 SEG22 HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Pin descriptions Reset pin(low active) Clock input Serial data input Enable Serial data output Key scan signal output Key signal input Selectable LCD SEG LCD SEG output SC230 (To be continued) REV:1.4 2004.08.03 Page ...

Page 5

... Pin No. Symbol 56 SEG23 57 SEG24 58 SEG25 59 SEG26 60 SEG27 61 SEG28 62 SEG29 63 SEG30 64 SEG31 FUNCTION DESCRIPTIONS SERIAL DATA INPUT HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Pin descriptions LCD SEG output REV:1.4 2004.08.03 Page SC230 ...

Page 6

... LCD switch selection (3) DR:1/2 bias or 1/3 bias selection HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Port description SEG0/P1 SEG1/P2 SEG2/ Display data D10 Function LCD is on LCD is off Function 1/3 bias 1/2 bias SC230 SEG3/ REV:1.4 2004.08.03 Page ...

Page 7

... D30 SEG25 D32 D33 SEG26 D35 D36 SEG27 D38 D39 SEG28 D41 D42 SEG29 D44 D45 SEG30 D47 D48 SEG31 SC230 COM0 COM1 COM2 D49 D50 D51 D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 ...

Page 8

... COM0, 2, LCD SEG on 0 COM0, 1, LCD SEG on 1 COM0 LCD SEG on KI2 KI3 KI4 KD2 KD3 KD4 KD8 KD9 KD10 KD14 KD15 KD16 KD20 KD21 KD22 SC230 KI5 KI6 KD5 KD6 KD11 KD12 KD17 KD18 KD23 KD24 REV:1.4 2004.08.03 Page ...

Page 9

... Key input 1 Key input 2 A Keyboard 8T(s) scan CE LCD DI data DO HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Key on Key on B 8T(s) LCD LCD Key address data data [A] Key scan data SC230 Key on C 8T(s) Key address [B] Key scan data /fx (fx = System clock) REV:1.4 2004.08.03 Page ...

Page 10

... Key scan time(16T)… The data of the two key scan is the same(new key data and already exist data) t5: Key address(43H)transmission time t6: Key data transmission time t8: t8= t4+LCD transmission time HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com. /fx (fx = system clock /fx (fx = system clock) SC230 REV:1.4 2004.08.03 Page ...

Page 11

... RESET Port state when reset Output SEG0/P1~SEG3/P4 SEG4~SEG31 COM0~COM2 KS1~KS4 DO Sequence RESET HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Output buffer Output buffer Output buffer Output buffer SC230 State Close L Close REV:1.4 2004.08.03 Page ...

Page 12

... TYPICAL APPLICATION CIRCUIT HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC230 REV:1.4 2004.08.03 Page ...

Page 13

... Persons at a work bench should be earthed via a wrist strap. Equipment cases should be earthed. All tools used during assembly, including soldering tools and solder baths, must be earthed. MOS devices should be packed for dispatch in antistatic/conductive containers. HANGZHOU MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC230 Unit mm REV:1.4 2004.08.03 Page ...

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