파트넘버.co.kr TM1629 데이터시트 PDF


TM1629 반도체 회로 부품 판매점

LED Control Driver



ETC 로고
ETC
TM1629 데이터시트, 핀배열, 회로
Overview
LED Control Driver
TM1629
TM1629 is a special circuit for LED (light-emitting diode) driver control with keyboard
scanning port. It integrates with different circuits such as MCU digital port, data latch, LED
high-voltage drive, keyboard scanning, etc. The product has good performance and reliable
quality, and is mainly applied in display drive of VCR, VCD, DVD, home theater and other similar
products.
Features
Low power consumption CMOS workmanship
Display mode(16segment×8positions)
Key scanning(8×4bit)
Luminance adjustment circuit (8-level adjustable duty cycle)
Serial port (CLK, STB, DIN DOUT)
Oscillation mode: built-in RC oscillation(450KHz+5%)
Built-in power-on reset circuit
Packaging:QFP44
Pin definitions
NC 1
DOUT 2
DIN 3
SCLK 4
STB 5
K0 6
K1 7
K2 8
K3 9
VSS 10
NC 11
TM1629
TOP VIEW
33 GRID8
32 VSS
31 VDD
30 SEG16
29 SEG15
28 SEG14
27 SEG13
26 SEG12
25 SEG11
24 SEG10
23 SEG9
Pin definitions
www.szpth.com
V1.1
Free Datasheet http://www.datasheet4u.com/


TM1629 데이터시트, 핀배열, 회로
LED Control Driver
TM1629
Sign Name
Description
DIN
DOUT
STB
CLK
Data input
Date output
Chip selection
Clock input
I/O serial data at rising edge of clock,
starting from low order .can use with DOUT
to DIO
On the rising edge of the clock output
serial data, from a low starting. With DIN
shorted for DIO to use
Initialize serial port at rising/falling edge,
and then wait for receiving command.
The first byte after the STB becomes low is
taken as the command. When treating
the command, other current treatments
are stopped. When STB is high, CLK is
ignored.
I/O serial data at rising edge of clock
K0~K3
SEG1/KS1~SEG8/KS8
SEG9~SEG16
GRID1~GRID8
VDD
VSS
Key scanning
data input
Output
(segment)
Output
(segment)
Output
(position)
Logical power
supply
Logic ground
The data to this pin are latched after
display cycle
Segment output (also used for
scanning), P pipe open-drain output
Segment output (also used for
scanning), P pipe open-drain output
key
key
Position output, N pipe open-drain output
5V±10%
Ground system
NC
Space
No connection
Note: During data output, DIO port is N-pipe open-drain output, and when reading keys, an
external pull-up resistor of 1K – 10K is required. We recommend a 10K pull-up resistor. DIO
controls the action of the N-pipe at the falling edge of the clock, and at this time the
reading is not stable, please refer to figure (6). It becomes stable only when reading at the
rising edge of the clock.
VCC
Circuit inside the
chip
CT
10K
DIO
GND
www.szpth.com
V1.1
Free Datasheet http://www.datasheet4u.com/




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TM1629 driver

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