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PDF NJU6624A Data sheet ( Hoja de datos )
| Número de pieza | NJU6624A | |
| Descripción | 12-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU6624A/B
PRELIMINARY
12-CHARACTER 1-LINE DOT MATRIX LCD
CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION
gGENERAL DESCRIPTION
The NJU6624A/B is a Dot Matrix LCD controller driver for 12-character
1-line with icon display in single chip.
It contains bleeder resistance, general output port, keyscan circuit,
CR oscillator, microprocessor interface circuit, instruction decoder con-
troller, character generator ROM/RAM, high voltage operation com-
mon and segment drivers, and others.
The character generator ROM consisting of 7,840 bits stores 224 kinds
of character Font. Each 1,120 bits CG RAM and Icon display RAM
can store 32 kinds of special character displayed on the dot matrix
display area or 60 kinds of Icon on the Icon display area.
The 8-common (7 for character, 1 for icon) and 71-segment drivers
operate 12-character 1-line with 60 Icon LCD display and LED driver
drives 4 LED which can use like as indicator.
The 16th display contrast control function is incorporated. Therefore,
the contrast adjustment is operated easily by only simple power sup-
ply circuit on-chip.
The complete CR oscillator requires no external components.
The serial interface which operates by 1MHz, communicates with ex-
ternal MCU.
As an outstanding feature, NJU6624A/B realizes the horizontal smooth
scroll of characters by combination of instructions.
The combination of NJU6624A as the Master and NJU6624B as the
slave drive the 12-character and 2-line LCD panel or 24-character 1-
line in 1/8 duty.
gPACKAGE OUTLINE
NJU6624A/BFG1
gFEATURES
n 12-character 1-line Dot Matrix LCD Controller Driver
n Maximum 60 Icon Display
n Serial Direct Interface with Microprocessor
n Display Data RAM
- 14 x 8 bits : Maximum 12-character 1-line Display
n Character Generator ROM - 7,840 bits : 224 Characters for 5 x 7 Dots
n Character Generator RAM - 1,120 bits : 32 Patterns( 5 x 7 Dots )
n Icon Display RAM
- Maximum 60 Icons
n High Voltage LCD Driver
: 8-common / 71-segment
n Duty and Bias Ratio
: 1/8 duty, 1/4 bias
n Master/Slave Function
:NJU6624A : Master, NJU6624B : Slave
n Useful Instruction Set
: Clear Display, Address Home, Display ON/OFF Cont., Display Blink,
Address Shift, Character Shift, Dot shift, Keyscan ON/OFF Cont. e.t.c.
n 32Key Input (4x8 keyscan)
n General output port (4 ports)
n Power On Initialization / Hardware Reset
n Bleeder Resistance on-chip
n Software contrast control(16 step)
n Oscillation Circuit on-chip
n Low Power Consumption
n Operating Voltage --- 2.4 to 5.5 V
n Package Outline --- QFP 100
n C-MOS Technology
Mar.2000
Ver.1
1 page  
NJU6624A/B
Table 2. CG ROM Character Pattern ( ROM version -02 )
5 Page 
NJU6624A/B
The key roll over input is the vertical line as shown below (Example 2) can be accepted with the keyscan circuit.
But in case of Example 3, the key roll over input in the horizontal line can not be accepted.
The key roll over input must be taken care for key data judgement.
Example 2. The key roll over input (1)
NJU6624
K3 K2 K1 K0 S7 S6 S5 S4 S3 S2 S1 S0
ON
OFF
Read out data
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
MS1 MS0 1 0 0 1 1 1 1 1 0 0 0 0 1 0
| K3 to K0 | | S7 to S0 |
Example 3. The key roll over input (2)
NJU6624
K3 K2 K1 K0 S7 S6 S5 S4 S3 S2 S1 S0
Note : In case of can not read out correct.
ON
OFF
11 Page | ||
| Páginas | Total 35 Páginas | |
| PDF Descargar | [ Datasheet NJU6624A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NJU6624A | 12-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION | New Japan Radio |
| NJU6624B | 12-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION | New Japan Radio |
| NJU6624C | 14-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION | New Japan Radio |
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