|
Details, datasheet, quote on part number:RCM1277U-A
| |
Datasheet text preview:
RCM1277U-A
Liquid crystal displays
16 x 16 dots transmissive large-sized liquid crystal display unit
RCM1277U-A
Thanks to the high contrast and wide viewing angle of the RCM1277U-A, which is provided by its unique design technology, this module brings forth new applications in brand new LCD fields. ROHM large-sized LCD units are perfect displays for information or sign boards. As a media for informational display, large-sized LCD units must possess high visibility, wide viewing angles, and other such superior qualities. ROHM large-sized LCDs boast an excellent track record and possess guaranteed functionality for assured satisfaction in a variety of situations.
!Applications
Public displays such as airport displays, train station displays, information boards, and billboards.
!External dimensions (Units : mm)
2.5±0.3
1Max. 0.3Max. 2.515±0.3 2Max.
56±0.3 54Min. 50.97±0.1
1.1±0.1
1.1±0.1 2.65±0.3
!Features
1) Wide viewing angle, high contrast, and fast response. 2) Compact and light weight for easy assembly. 3) Supports negative or positive display. 4) Low power consumption.
61±0.3 57.5±0.3 36.75Max. 33.75Max. 23.75Min. 20.75Min.
2Max. 51±0.2 54Min.
Viewing direction [6:00]
[64.7]
4±0.3
(3.5) (8)
[40.5]
35±0.5
27±0.3 (4) (15.5)
2.52
0.71 C0.1
CN2
CN1
3
8
23±0.3
1 46±0.5
8
1 2 to 2.8 dia.
Please specify the viewing direction
0.2
Dots details
1.0±0.3
[R3.2]
2.7±0.5
RCM1277U-A
Liquid crystal displays
!Block diagram
LCD
COM. 1
64 output driver IC
FLM VDD VO M CL1 CL2 DO GND OUTPUT
64 output driver IC
COM waveform generator circuit
FLM VDD VO M CL1 CL2 DI GND INPUT
!Pin functions (1) Input (CN1)
Pin no. Symbol
IN / OUT IN IN IN IN IN Frame start code
Function
1 2 3 4 5 6 7 8
FLM VO VDD M CL1 CL2 DI GND
Liquid crystal drive power supply Applies 5 V Liquid crystal drive output AC conversion signal Data latch signal (displays at rising edge) Shift register shift signal (reads data at falling edge) Display data signal (1: On, 0: Off) Ground
(2) Output (CN2)
Pin no. Symbol
IN / OUT OUT OUT OUT OUT OUT
Ground Display data code Shift lock signal Data latch signal AC conversion signal 5V
Function
1 2 3 4 5 6 7 8
GND DO CL2 CL1 M VDD VO FLM
Liquid crystal drive power supply Frame start signal
COM. 2
RCM1277U-A
Liquid crystal displays
!Absolute maximum ratings (Ta = 25°C)
Parameter
Logic power supply voltage LCD drive voltage Input voltage Operating temperature Storage temperature
Symbol VDD VDD-VO VIN Topr Tstg
Limics -0.3~+7.0 -0.3~+7.0 -0.3~VDD+0.3 0~+50 -10~+60
Unit V V V °C °C
!Electrical characteristics (VDD = 5.0V ± 0.25V, Ta = 25°C)
Parameter
Input high level voltage Input low level voltage Output high level voltage Output low level voltage Power supply current
Symbol VIH VIL VOH VOL IDD
Min. 3.5 4.6 -
Typ. -
Max. 1.5 0.4 6.0
Unit V V V V mA -IOH = -0.4mA IOL = +0.4mA
Conditions
fCL = 1MHz, fM = 70Hz
!AC characteristics (VDD = 5.0V ± GND = 0V, Ta = 25°C)
Parameter
Shift frequency High level lock width Low level lock width Data setup time Clock setup time 1 Clock setup time 2 Data hold time Clock rise / fall time FLM setup time FLM hold time Output delay time AC conversion signal
Symbol fCL tCWH tCWL tSU tSL tLS tDH tct tFDS tFDH tpd fM
Applicable terminal CL2 CL1, CL2 CL2 DI CL2 CL1 DI CL1, CL2 FLM FLM DO M
Min. 470 470 120 220 220 120 120 120 -
Typ. 70
Max. 1 50 250 -
Unit MHz ns ns ns ns ns ns ns ns ns ns Hz
!Timing characteristics
CL2 VIH VIL tct VIH VIL tpd VOH VOL tCWH tct tSU tSL tCWL VIH
tDH
DI
DO
CL1 tct VIH
VIH ViL tCWH
tLS tct
FLM
tFDS
tFDH
Fig.1
|
|
