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参数资料
| 型号： | AS1118-BQFT |
| 厂商： | ams |
| 文件页数： | 2/21页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER 64LED W/DELAY 24-TQFN |
| 标准包装： | 1 |
| 系列： | * |
D atas he et
A S 111 8
64 L E D D r i v er fo r M o b i l e A p p l i ca ti on s w i th E r r or D e te ct i o n
1 General Description
The AS1118 is a compact LED driver for 64 single LEDs
or 8 digits of 7-segments. The devices can be pro-
grammed via an SPI compatible 3-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 inte-
grated BCD code-B/HEX decoder, multiplex scan cir-
cuitry, segment and display drivers, and a 64-bit
memory. Internal memory stores the shift register set-
tings, eliminating the need for continuous device repro-
gramming.
Table 1. Available Products
2 Key Features
10MHz SPI-Compatible Interface
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)
Individual Digit Brightness Control
Digital and Analog Brightness Control
Display Blanked on Power-Up
Drive Common-Cathode LED Displays
Supply Voltage Range: 2.7V to 5.5V
Software and Hardware Reset
Devices
AS1115
AS1116
AS1117
AS1118
RESET Input
no
no
yes
yes
Interfaces
I2C
SPI
I2C
SPI
Optional External Clock
Package: TQFN(4x4)-24
3 Applications
,
Additionally the AS1118 offers a detailed error diagnostic
mode for easy and fast production testing in critical
applications. The AS1118 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. AS1118 - Typical Application Diagram
8
DIG0 to
The AS1118 is ideal for seven-segment or dot matrix dis-
plays in mobile applications, public information displays
at subway, train or bus stations, at airports and also at
displays in public transportation like buses or trains, per-
sonal electronic and toys.
V DD
2.7V to 5.5V
SEGA-DP
VDD
DIG7
8
8
8
8
9.53k ?
ISET
AS1118
GND
I/O
SDI
SDO SDI
AS1118
SDO
SDI
AS1118
SDO
μP
I/O
I/O
RESETN SCL
LD
RESETN SCL LD
RESETN SCL LD
I/O
I/O
Diagnostic readback: open & shorted LEDs
www.austriamicrosystems.com/LED-Driver-ICs/AS1118
Revision 1.01
1 - 20
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相关代理商/技术参数 |
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|---|---|
| AS1118-XXX-I-A1-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A1-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A2-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A2-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A3-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
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