Datasheet > AS1115-BQFT

AS1115-BQFT

更新时间： 2024-02-03 05:07:56

品牌	Logo	应用领域
艾迈斯 - AMSCO		驱动器接口集成电路 PC
页数	文件大小	规格书
24页	1025K
描述
64 LEDs, I²C Interfaced LED Driver with Keyscan

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技术参数
数据手册

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AS1115-BQFT 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
Reach Compliance Code：	unknown	风险等级：	5.63
Is Samacsys：	N	可调性：	ADJUSTABLE
标称回动电压 1：	1.05 V	JESD-609代码：	e0
输出次数：	1	端子数量：	3
工作温度TJ-Max：	125 °C	工作温度TJ-Min：	-40 °C
最大输出电流 1：	0.6 A	最大输出电压 1：	9 V
最小输出电压 1：	1.25 V	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SIP3,.1TB	认证状态：	Not Qualified
子类别：	Other Regulators	表面贴装：	NO
技术：	BIPOLAR	端子面层：	Tin/Lead (Sn/Pb)
端子节距：	2.54 mm	端子位置：	SINGLE
Base Number Matches：	1

AS1115-BQFT 数据手册

Datasheet

AS1115

64 LEDs, I²C Interfaced LED Driver with Keyscan

1 General Description

2 Key Features

ꢀ

3.4MHz I²C-Compatible Interface

Individual LED Segment Control

The AS1115 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.

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

Every segment can be individually addressed and

updated separately. Only one external resistor (RSET) is

required to set the current. LED brightness can be con-

trolled 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.

ꢀ

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 inter-

rupt.

Optional External Clock

Package:

- QSOP-24

- TQFN(4x4)-24

Additionally the AS1115 offers a diagnostic mode for

easy and fast production testing.

3 Applications

The AS1115 features a low shutdown current of typically

200nA, and an operational current of typically 350µA.

The number of digits can be programmed, the devices

can be reset by software, and an external clock is also

supported.

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, refriger-

ators and other white good or personal electronic appli-

cations.

The device is available in a QSOP-24 and the

TQFN(4x4)-24 package.

Figure 1. Typical Application Diagram

VDD

DIG0 to

DIG7

2.7 to 5.5V

9.53kΩ

SEGA-DP

KEY0-7

ISET

AS1115

SDA

SCL

IRQ

SCL

IRQ

KEYA

KEYB

µP

GND

www.austriamicrosystems.com

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