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부품번호 | EM83040A 기능 |
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기능 | LCD CONTROLLER | ||
제조업체 | ELAN Microelectronics Corp | ||
로고 | |||
Preliminary
EM83040A
LCD CONTROLLER
GENERAL DESCRIPTION
The EM83040A is a dot matrix LCD driver which is fabricated by low power CMOS technology. This chip
includes 80- bits shift register , 80 bits data latch and 80 bits level driver. A LCD RAM inside can be mapping
to LCD signal. It converts RAM data to parallel data and output lcd waveform to LCD.
FEATURES
(1) Supply power 2.6~6V
(2) Internal RAM : 2.5k x 4 bits
(3) RAM can be controlled by eight signals including four bit data bus.
(4) LCD drive voltage :<13V
(5) Duty: 1/32, 1/48, 1/80
(6) Build in DC converter double and triple
(7) Modularized function: connect to another 83040 to extent LCD matrix
(8) One DC converter enabled and other 83040 can shared with this.
(9) Internal regulator output for DC converter controlled by control register. (2.5V to 4.6V, 8 level)
(10) Chip form (EM83040AH), 128 pin package (14mmx20mm EM83040AAQ), 160 pin package (EM83040ABQ)
(11) Bias : 1/5 for 32 common, 1/7 for 48 common, 1/9 for 80 common. Fixed by internal circuit.
(12) Internal RC clock about 250 KHz.
APPLICATION
(1) Data Bank
(2) LCD toy
(3) Education computer
PIN ASSIGNMENTS
VREG
EM83040ABQ
* This specification are subject to be changed without notice.
5.31.2001 1
SLAVE
Mode1
Mode2
Mode3
Mode4
MAIN M1 M0
0 00
0 01
0 10
0 11
Preliminary
Segment
Reserved for test
O(80:1)=S(80:1)
O(80:1)=S(80:1)
O(80:1)=S(80:1)
Common
EM83040A
LCD CONTROLLER
1/9
1/7
1/5
* S=Segment, C=common
* (M1, M0) for master must same as slave unit.
(3)RAM control
Writer mode
Fig.3
LCD RAM can be written or read with control signal. The RAMEN pin can select a RAM which can be read or
write . The RAMADS pin can select whether RAMD(3:0) are data or address of RAM. At the address mode ,
RAMADS is low and user should sent address three times. From address (11:8) to address (3:0). Then it will go
into data mode when RAMADS is high. In data mode , user can sent one or more nibble data which address can
be increased by internal counter.
Once the RAMEN pin is high, the RAM can not read and write.
* This specification are subject to be changed without notice.
5.31.2001 4
4페이지 (7) Control register
Preliminary
EM83040A
LCD CONTROLLER
Address
2560
Initial : 0000
Bit3
V_BIAS
Bit2
Regulator2
Bit1
Regulator1
Bit0
regulator0
Bit2,1,0 : internal regulator output selection.
(regulator2, regulator1, regulator0)
(0,0,0)
(0,0,1)
(0,1,0)
(0,1,1)
(1,0,0)
(1,0,0)
(1,1,0)
(1,1,1)
Output voltage
2.5V
2.8V
3.1V
3.4V
3.7V
4.0V
4.3V
4.6V
Bit3 : internal Bias voltage selection
(V_BIAS)
0
1
BIAS voltage
VSS2
VSS3
Bias fromV1 to V5
1/5 bias
V_BIAS=0
V1 V2
V2 V2*4/5
V3 V2*3/5
V4 V2*2/5
V5 V2*1/5
1/5 bias
V_BIAS=1
V3
V3*4/5
V3*3/5
V3*2/5
V3*1/5
1/7 bias
V_BIAS=0
V2
V2*6/7
V2*5/7
V2*2/7
V2*1/7
1/7 bias
V_BIAS=1
V3
V3*6/7
V3*5/7
V3*2/7
V3*1/7
1/9 bias
V_BIAS=0
V2
V2*8/9
V2*7/9
V2*2/9
V2*1/9
1/9 bias
V_BIAS=1
V3
V3*8/9
V3*7/9
V3*2/9
V3*1/9
*V2=VREG*2*97%
*V3=VREG*3*95%
* This specification are subject to be changed without notice.
5.31.2001 7
7페이지 | |||
구 성 | 총 16 페이지수 | ||
다운로드 | [ EM83040A.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
EM83040 | EM83040 LCD DRIVER | ELAN Microelectronics Corp |
EM83040A | LCD CONTROLLER | ELAN Microelectronics Corp |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |