- 您现在的位置：买卖IC网 > Sheet目录311 > AS1117-BQFT (ams)IC DRIVER 64LED MOBILE 24-TQFN
D a ta s h e e t
AS1117
64 LED Driver for Mobile Applications with Error Detection
1 General Description
2 Key Features
The AS1117 is a compact LED driver for 64 single LEDs
or 8 digits of 7-segments. The devices can be pro-
grammed via an I2C compatible 2-wire interface. Every
segment can be individually addressed and updated
separately. Only one external resistor (R SET ) is required
to set the current. LED brightness can be controlled by
analog or digital means.
The devices include an integrated BCD code-B/HEX
decoder, multiplex scan circuitry, segment and display
drivers, and a 64-bit memory. Internal memory stores
the shift register settings, eliminating the need for contin-
uous device reprogramming.
Table 1. Available Products
!
!
!
!
!
!
!
!
!
!
3.4MHz I2C-Compatible Interface
Individual LED Segment Control
Readback for 8 Keys plus Interrupt
Open and Shorted LED Error Detection
- Global or Individual Error Detection
Hexadecimal- or BCD-Code for 7-Segment Displays
200nA Low-Power Shutdown Current (typ; data
retained)
Digital and Analog Brightness Control
Display Blanked on Power-Up
Drive Common-Cathode LED Displays
Supply Voltage Range: 2.7V to 5.5V
Devices
AS1115
AS1116
AS1117
AS1118
RESET Input
no
no
yes
yes
Interfaces
I2C
SPI
I2C
SPI
!
!
!
!
Software and Hardware Reset
Up to 4 devices cascadable
Optional External Clock
Package: TQFN(4x4)-24
Additionally the AS1117 offers a detailed error diagnostic
mode for easy and fast production testing in critical
applications. The AS1117 features a low shutdown cur-
rent of typically 200nA, and an operational current of
typically 350μA. The number of digits can be pro-
grammed, the devices can be reset by software, and an
external clock is also supported.
The device is available in a TQFN(4x4)-24 package.
Figure 1. AS1117 - Typical Application Diagram
V DD
3 Applications
The AS1117 is ideal for seven-segment or dot matrix
user interface displays of mobile applications, set-top
boxes, VCRs, DVD-players, washing machines, micro
wave ovens, refrigerators and other white good or per-
sonal electronic applications.
2.7V to 5.5V
VDD
DIG0 to
9.53k Ω
I SET
DIG7
SEGA-DP
KEY0-7
8
8
SDA
SDA
AS1117
μP
SCL
IRQ
SCL
IRQ
KEY
RESETN
GND
www.austriamicrosystems.com/LED-Driver-ICs/AS1117
Revision 1.00
1 - 23
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
AS1118-BQFT
IC DRIVER 64LED W/DELAY 24-TQFN
AS1121B-BQFT
IC DRIVER 16-CH 32-TQFN
AS1122B-BQFT
IC LED DVR 12-CH 24-TQFN
AS1123-BTST
IC LED DVR 16-CH 40MA 24-QSOP
AS1390A-ZQFT
IC BOOST CTLR/BUCK CONV 20-QFN
AS212-L
SOCKET 12V AUTO SAFETY CAP MNT
AS212C
AUTO 12V SOCKET W/SAFETY CAP
AS212
SOCKET AUTO LOCKING BLACK
相关代理商/技术参数
AS1117M1
制造商:ALPHA 制造商全称:ALPHA 功能描述:800mA Low Dropout Regulator SCSI-II Active Terminator
AS1117M1-X
制造商:ALPHA 制造商全称:ALPHA 功能描述:800mA Low Dropout Regulator SCSI-II Active Terminator
AS1117M3
制造商:ALPHA 制造商全称:ALPHA 功能描述:800mA Low Dropout Regulator SCSI-II Active Terminator
AS1117M3-1.5
制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
AS1117M3-2.5
制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
AS1117M3-3.0
制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
AS1117M3-3.3
制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
AS1117M3-5.0
制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC