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参数资料
| 型号： | AS1115 DB-YELLOW |
| 厂商： | ams |
| 文件页数： | 2/26页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO AS1115 YELLOW |
| 标准包装： | 1 |
| 输出及类型： | 8，非隔离 |
| 特点： | 64 LED + 16 键，I²C |
| 输入电压： | 2.7 ~ 5.5 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS1115 |
Datas h eet
A S 111 5
64 L E D s, I 2C I n t er f ac ed L E D Dr i v er w i th K ey sc an
1 General Description
The AS1115 is a compact LED driver for 64 single LEDs or 8 digits of
7-segments. The devices can be programmed via an I2C compatible
2-wire interface.
Every segment can be individually addressed and updated sepa-
rately. Only one external resistor (R SET ) is required to set the cur-
rent. LED brightness can be controlled by analog or digital means.
The devices include an integrated BCD code-B/HEX decoder, multi-
plex scan circuitry, segment and display drivers, and a 64-bit mem-
ory. Internal memory stores the shift register settings, eliminating the
need for continuous device reprogramming.
All outputs of the AS1115 can be configured for key readback. Key-
switch status is obtained by polling for up to 64 keys while 16 keys
can be used to trigger an interrupt.
Additionally the AS1115 offers a diagnostic mode for easy and fast
production testing.
The AS1115 features a low shutdown current of typically 200nA, and
an operational current of typically 350 A. The number of digits can
be programmed, the devices can be reset by software, and an exter-
nal clock is also supported.
2 Key Features
up to 1MHz I2C-Compatible Interface
Individual LED Segment Control
Readback for 16 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: 2.7 to 5.5V
Software Reset
Optional External Clock
Package:
- QSOP-24
- TQFN(4x4)-24
The device is available in a QSOP-24 and the TQFN(4x4)-24 pack-
age.
3 Applications
The AS1115 is ideal for seven-segment or dot matrix user interface
displays of set-top boxes, VCRs, DVD-players, washing machines,
micro wave ovens, refrigerators and other white good or personal
electronic applications.
Figure 1. AS1115 - Typical Application Diagram
V DD
2.7 to 5.5V
9.53k ?
ISET
DIG0 to
DIG7
SEGA-DP
KEY0-7
8
8
SDA
SDA
AS1115
8
μP
SCL
IRQ
SCL
IRQ
KEYA
KEYB
GND
Revision 1.08
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相关代理商/技术参数 |
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|---|---|
| AS1115M | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Positive Adjustable Voltage Regulator |
| AS1115M3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| AS1115M3-1.5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| AS1115M3-2.5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| AS1115M3-3.0 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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