HT1632C 반도체 회로 부품 판매점
32 x 8 & 24 x 16 LED Driver
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 Holtek |
HT1632C
32´8 & 24´16 LED Driver
Features
· Operating voltage: 2.4V~5.5V
· Multiple LED display - 32 ROW /8 COM and
24 ROW & 16 COM
· Integrated display RAM - select 32 ROW &
8 COM for 64´4 display RAM, or select
24 ROW & 16 COM 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
· 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 HT1632C is a memory mapping LED display control-
ler/driver, which can select a number of ROW and com-
mons. These are 32 ROW & 8 commons and 24 ROW &
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 HT1632C. The display can be extended by cas-
cading the HT1632C 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
2
LE D _V D D
COM 0
COM 7
ROW 0
R O W 23
R O W 2 4 /C O M 1 5
R O W 3 1 /C O M 8
LE D _V S S
2
P W M C o n tro l
Rev. 1.20
1 June 28, 2011
Free Datasheet http://www.datasheet4u.net/
Pin Assignment
HT1632C
R O W 11
R O W 10
ROW 9
ROW 8
ROW 7
ROW 6
LE D _V D D
ROW 5
ROW 4
ROW 3
ROW 2
ROW 1
ROW 0
52 51 50 49 48 47 46 45 44 43 42 41 40
1 39
2 38
3 37
4 36
5 35
6 34
7
8
H T1632C
5 2 Q F P -A
33
32
9 31
10 30
11 29
12 28
13 27
14 15 16 17 18 19 20 21 22 23 24 25 26
R O W 2 5 /C O M 1 4
LE D _V D D
R O W 2 6 /C O M 1 3
LE D _V S S
R O W 2 7 /C O M 1 2
R O W 2 8 /C O M 1 1
R O W 2 9 /C O M 1 0
R O W 3 0 /C O M 9
R O W 3 1 /C O M 8
COM 7
COM 6
COM 5
COM 4
Pin Description
Pad Name
I/O
Description
ROW0~ROW23 O Line drivers. These pins drive the LEDs.
ROW24/COM15~
ROW31/COM8
O Drive LED outputs or common outputs. Each COM pin is double bonded.
COM0~COM7
O Common outputs. Each COM pin is double bonded.
SYNC
If the RC Master Mode or EXT CLK Master Mode command is programmed, the synchro-
I/O nous signal is output to SYN pin.
If the Slave Mode command is programmed, the synchronous signal is input from SYN pin.
OSC
If the RC Master Mode command is programmed, the system clock source is from on-chip
I/O
RC oscillator and system clock is output to OSC pin.
If the Slave Mode or EXT CLK Master Mode command is programmed, the system clock
source is input from external clock via the OSC pin.
DATA
I/O Serial data input or output with pull-high resistor
WR
I
WRITE clock input with pull-high resistor Data on the DATA lines are latched into the
HT1632C on the rising edge of the WR signal.
READ clock input with pull-high resistor. The HT1632C RAM data is clocked out on the
RD I falling edge of the RD signal. The clocked out data will appear on the DATA line. The host
controller can use the next rising edge to latch the clocked out data.
Chip select input with pull-high resistor When the CS line is high, the data and command
CS
I
read from or written to the HT1632C is disabled, and the serial interface circuit is also re-
set. If CS is low, the data and command transmission between the host controller and the
HT1632C are all enabled.
LED_VDD
¾ Positive power supply for driver circuit. Each LED_VDD pin is double bonded.
LED_VSS
¾ Negative power supply for driver circuit, ground. Each LED_VSS pin is double bonded.
VSS
¾ Negative power supply for logic circuit, ground.
VDD
¾ Positive power supply for logic circuit.
Rev. 1.20
2 June 28, 2011
Free Datasheet http://www.datasheet4u.net/
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PDF 파일 내의 페이지 : 총 24 페이지
제조업체: Holtek
( holtek )
HT1632C led
데이터시트 다운로드 :
[ HT1632C.PDF ]
[ HT1632C 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
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