Datasheet.kr   

AS1100 PDF 데이터시트 ( Data , Function )

부품번호 AS1100 기능
기능 Serially Interfaced 8-Digit LED Driver
제조업체 AMSCO
로고 AMSCO 로고 



전체 12 페이지
		

No Preview Available !

AS1100 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Data Sheet AS1100
Serially Interfaced, 8-Digit LED Driver
AS1100
DATA SHEET
Key Features
- 10MHz Serial Interface
- Individual LED Segment Control
- Decode/No-Decode Digit Selection
- 20µA Low-Power Shutdown (Data Retained)
- Extremely low Operating Current 0.5mA in open loop
- Digital and Analog Brightness Control
- Display Blanked on Power-Up
- Drive Common-Cathode LED Display
- Software Reset1
- Optional External clock
- 24-Pin DIP and SO Packages
- Fully compatible to MAX7219
Every individual segment can be addressed and updated
separately. Only one external resistor is required to set the
current through the LED display. Brightness can be
controlled either in an analog or digital way. The user can
choose the internal code-B decoder to display numeric
digits or to address each segment directly. The AS1100
features an extremely low shutdown current of only 20µA.
and an operational current of less than 500µA. The number
of visible digits can be programmed as well. The AS1100
can be reset by software and an external clock can be used.
Several test modes support easy debugging.
The AS1100 is fully compatible to the MAX 7219. AS1100 is
offered in a 24 pins PDIP and SOIC package.
General Description
Applications
- Bar-Graph Displays
The AS1100 is an LED driver for 7 segment numeric
- Industrial Controllers
displays of up to 8 digits. The AS1100 can be programmed
- Panel Meters
via a conventional 4 wire serial interface. It includes a BCD
- LED Matrix Displays
code-B decoder, a multiplex scan circuitry, segment and
- White Goods
display drivers and a 64 Bit memory. The memoryDisatuasSedhetoet4U.com
store the LED settings, so that continuous reprogramming is
not necessary.
DataShee
TOP
DIN 1
DIG0 2
DIG4 3
GND 4
DIG6 5
DIG2 6
DIG3 7
DIG7 8
GND 9
DIG5 10
DIG1 11
LOAD 12
24 DOUT
23 SEG D
22 SEG DP
21 SEG E
20 SEG C
19 VDD
AS1100 18 ISET
17 SEG G
16 SEG B
15 SEG F
14 SEG A
13 CLK
DIP/SO 24
Pin Configuration
1 Software Reset and external clock are not supported by
MAX7219
9.53k
MOSI
µP I/O
SCK
+5V
19
VDD
18 ISET DIG0-DIG7
1 DIN
8 Digits
12 LOAD
1
9
CLK
SEG A-G
SEP DP
GND GND
8 Segments
4
8-Digit µP Display
Typical Application Circuit
DataSheet4U.com
Revision 1.32, Oct. 2004
DataSheet4 U.com
Page 1 of 12




AS1100 pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
Data Sheet AS1100
LOAD
CLK
DIN
DOUT
Figure 1: Timing diagram
tDH
tDS
D15
tCL tCH
D14
tCSW
tCS
tCP tLDCK
D1 D0
tDO
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
XX X X
Address
MSB
Data LSB
Table 1: Serial data format (16 bits)
et4U.com
64bit memory. Each digit can be controlled directly without
Detailed Description
rewriting the whole contents. The control registers consist
DataSheet4U.coofmdecode mode, display intensity, number of scanned DataShee
digits, shutdown, display test and reset/external clock
Serial-Addressing Modes
register.
Programming of the AS1100 is done via the 4 wire serial
interface. A programming sequence consists of 16-bit
packages. The data is shifted into the internal 16 Bit
register with the rising edge of the CLK signal. With the
rising edge of the LOAD signal the data is latched into a
digital or control register depending on the address. The
LOAD signal must go to high after the 16th rising clock
edge. The LOAD signal can also come later but just before
the next rising edge of CLK, otherwise data would be lost.
The content of the internal shift register is applied 16.5
clock cycles later to the DOUT pin. The data is clocked out
at the falling edge of CLK. The Bits of the 16Bit-
programming package are described in table 1. The first 4
Bits D15-D12 are ”don’t care, D11-D8 contain the address
Shutdown Mode
The AS1100 features a shutdown mode, where it consumes
only 20µA current. The shutdown mode is entered via a
write to register 0Ch. Then all segment current sources are
pulled to ground and all digit drivers are connected to VDD,
so that nothing is displayed. All internal digit registers keep
the programmed values. The shutdown mode can either be
used for power saving or for generating a flashing display
by repeatedly entering and leaving the shutdown mode. The
AS1100 needs typically 250µs to exit the shutdown mode.
During shutdown the AS1100 is fully programmable. Only
the display test function overrides the shutdown mode.
and D7-D0 contain the data. The first bit is D15, the most
significant bit (MSB). The exact timing is given in figure 1.
Initial Power-Up
After powering up the system all register are reset, so that
Digit and Control Registers
The AS1100 incorporates 15 registers, which are listed in
Table 2. The digit and control registers are selected via the
4Bit address word. The 8 digit registers are realized with a
the display is blank. The AS1100 starts the shutdown mode.
All registers should be programmed for normal operation.
The default settings enable only scan of one digit, the
internal decoder is disabled, data register and intensity
register are set to the minimum value.
DataSheet4U.com
Revision 1.32, Oct. 2004
DataSheet4 U .com
Page 4 of 12

4페이지










AS1100 전자부품, 판매, 대치품
www.DataSheet4U.com
Data Sheet AS1100
A
F
G
B
EC
D DP
Figure 2: Standard 7-segment LED
et4U.com
Duty Cycle D7 D6 D5 D4 D3 D2 D1 D0
1/32 (min on) X X X X 0 0 0 0
3/32 X X X X 0 0 0 1
5/32 X X X X 0 0 1 0
7/32 X X X X 0 0 1 1
9/32 X X X X 0 1 0 0
11/32
XXXX0 10 1
13/32
XXXX0 11 0
15/32
XXXX0 11 1
17/32
XXXX1 00 0
19/32
XXXX1 00 1
21/32
XXXX1 01 0
23/32
XXXX1 01 1
25/32
XXXX1 10 0
27/32
XXXX1 10 1
29/32
XXXX1 11 0
31/32 (max on) X X X X 1 1 1 1
Hex Code
0xX0
0xX1
0xX2
0xX3
0xX4
0xX5
0xX6
0xX7
0xX8
0xX9
D0axtXaASheet4U.com
0xXB
0xXC
0xXD
0xXE
0xXF
Table 7: Intensity register format (address (hex) = 0xXA)
Scan Limit
D7
D6
Register Data
D5 D4 D3 D2
D1
D0
Hex Code
Display digit 0 only
XXXXX00 0
0xX0
Display digits 0 & 1
XXXXX00 1
0xX1
Display digits 0 1 2
XXXXX01 0
0xX2
Display digits 0 1 2 3
XXXXX01 1
0xX3
Display digits 0 1 2 3 4 X X X X X 1 0 0
0xX4
Display digits 0 1 2 3 4 5 X X X X X 1 0 1
0xX5
Display digits 0 1 2 3 4 5
6
X
X
X
X
X
1
1
0
0xX6
Display digits 0 1 2 3 4 5
67
X
X
X
X
X
1
1
1
0xX7
Table 8: Scan-limit register format (address (hex) = 0xXB)
DataSheet4U.com
Revision 1.32, Oct. 2004
DataSheet4 U .com
DataShee
Page 7 of 12

7페이지


구       성총 12 페이지
다운로드[ AS1100.PDF 데이터시트 ]
구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

전력 반도체 판매 ( IGBT, TR 모듈, SCR, 다이오드 모듈 )

상호 : 아이지 인터내셔날

사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ]



링크공유

링크 :

관련 데이터시트

부품번호상세설명 및 기능제조사
AS1100

Serially Interfaced 8-Digit LED Driver

AMSCO
AMSCO
AS1101

(AS1101 - AS1104) Low-Dropout LED Drivers

AMSCO
AMSCO

DataSheet.kr    |   2020   |  연락처   |  링크모음   |   검색  |   사이트맵