|
|
PDF HT1632 Data sheet ( Hoja de datos )
| Número de pieza | HT1632 | |
| Descripción | LED Driver | |
| Fabricantes | Holtek Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de HT1632 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
|
No Preview Available !
HT1632www.DataSheet4U.com
32´8 & 24´16 LED Driver
Features
· Operating voltage: 2.4V~5.5V
· Multiple LED display - 32 out bits/8 commons and
24 out bits/16 commons
· Integrated display RAM - select 32 out bits &
8 commons for 64´4 display RAM, or select 24
outbits & 16 commons for 96´4 display RAM
· 16-level PWM brightness control
· Integrated 256kHz RC oscillator
· Serial MCU interface - CS, RD, WR, DATA
· Data mode & command mode instruction
· Cascading function for extended applications
(up to 5 HT1632s possible)
· Selectable NMOS open drain output driver and
PMOS open drain output driver for commons
· 52-pin QFP package
Applications
· Industrial control indicator
· Digital clock, thermometer, counter, voltmeter
· Instrumentation readouts
· Other consumer application
· LED Displays
General Description
The HT1632 is a memory mapping LED display control-
ler/driver, which can select a number of out bits and com-
mons. These are 32 out bits & 8 commons and 24 out bits
& 16 commons. The device supports 16-gradation LEDs
for each out line using PWM control with software instruc-
tions. A serial interface is conveniently provided for the
command mode and data mode. Only three or four lines
are required for the interface between the host controller
and the HT1632. The display can be extended by cas-
cading the HT1632 for wider applications.
Block Diagram
VDD
VSS
D is p la y R A M
CS
RD
WR
D ATA
O SC
SYNC
C o n tro l
and
T im in g
C ir c u it
T im in g
G e n e ra to r
L E D D r iv e r
P W M C o n tro l
COM 0
COM 7
O U T B IT 0
O U T B IT 2 3
O U T B IT 2 4 /C O M 1 5
O U T B IT 3 1 /C O M 8
LE D _V S S
Rev. 1.00
1 October 2, 2007
1 page  
wwwH.DTa1ta6S3he2et4U.com
Functional Description
Display Memory - RAM
The static display memory, RAM, is organised into 64´4
bits or 96´4 bits and stores the displayed data. If 32 out
bits & 8 commons is selected, the RAM size is 64´4 bits.
If 24 out bits & 16 commons is selected the RAM size is
96´4 bits. The contents of the RAM are directly mapped
to the contents of the LED driver. Data in the RAM can
be accessed by the READ, WRITE, and READ-
MODIFY-WRITE commands. The following table shows
the mapping from the RAM to the LED pattern:
Out0
Out1
Out2
Out3
Out4
Out5
Out6
Out7
Out8
Out9
Out10
Out11
Out12
Out13
Out14
Out15
Out16
Out17
Out18
Out19
Out20
Out21
Out22
Out23
Out24
Out25
Out26
Out27
Out28
Out29
Out30
Out31
Com7
D3
Com6
D2
Com5
D1
Com4
D0
Addr.
01H
03H
05H
07H
09H
0BH
0DH
0FH
11H
13H
15H
17H
19H
1BH
1DH
1FH
21H
23H
25H
27H
29H
2BH
2DH
2FH
31H
33H
35H
37H
39H
3BH
3DH
3FH
Data
Com3
D3
Com2
D2
Com1
D1
Com0
D0
Addr.
00H
02H
04H
06H
08H
0AH
0CH
0EH
10H
12H
14H
16H
18H
1AH
1CH
1EH
20H
22H
24H
26H
28H
2AH
2CH
2EH
30H
32H
34H
36H
38H
3AH
3CH
3EH
Data
32 Outbits & 8 Common for 64´4 Display RAM
Rev. 1.00
5 October 2, 2007
5 Page 
Application Circuits
Single Connect Example for 32 Outbits & 8 Commons
CS
WR
RD
D ATA
M CU
CS
WR
RD
D ATA
C O M 0~
COM 7
H T1632
O SC
O U T B IT 0 ~
O U T B IT 3 1
COM 0
COM 1
COM 2
COM 3
COM 4
COM 5
COM 6
COM 7
V DD
wwwH.DTa1ta6S3he2et4U.com
L E D M a tr ix
Note: Common & outbit are all NMOS open drain output structures and only supply sink current.
Rev. 1.00
11 October 2, 2007
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet HT1632.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HT1632 | LED Driver | Holtek Semiconductor |
| HT1632C | 32 x 8 & 24 x 16 LED Driver |  Holtek |
| HT1635 | 44 x 8 LED Driver | Holtek |
| HT1635A | 44 x 8 LED Driver | Holtek |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |