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参数资料
| 型号： | AS1115-BSST |
| 厂商： | ams |
| 文件页数： | 13/26页 |
| 文件大小： | 0K |
| 描述： | IC DVR LED 64LED/7SEG I2C 24QSOP |
| 产品培训模块： | AS1115 Overview |
| 标准包装： | 1 |
| 显示器类型： | LED |
| 配置： | 8 x（7 段），64 LED |
| 接口： | I²C |
| 数字或字符： | 8 位数字 |
| 电流 - 电源： | 335mA |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 标准包装 |
| 其它名称： | AS1115-BSSTDKR |
AS1115
Datasheet - D e t a i l e d D e s c r i p t i o n
Initial Power-Up
On initial power-up, the AS1115 registers are reset to their default values, the display is blanked, and the device goes into shutdown mode. At
this time, all registers should be programmed for normal operation.
Note: The default settings enable only scanning of one digit; the internal decoder is disabled and the Intensity Control Register ( see page
Shutdown Mode
The AS1115 devices feature a shutdown mode, where they consume only 200nA (typ) current. Shutdown mode is entered via a write to the Shut-
down Register (see Table 7 ). During shutdown mode the Digit-Registers maintain their data.
Shutdown mode can either be used as a means to reduce power consumption or for generating a flashing display (repeatedly entering and leav-
ing shutdown mode). For minimum supply current in shutdown mode, logic input should be at GND or V DD (CMOS logic level).
When entering or leaving shutdown mode, the Feature Register is reset to its default values (all 0s) when Shutdown Register bit D7 (page 13) =
0.
Note: When Shutdown Register bit D7 = 1, the Feature Register is left unchanged when entering or leaving shutdown mode. If the AS1115
is used with an external clock, Shutdown Register bit D7 should be set to 1 when writing to the Shutdown Register.
Digit- and Control-Registers
The AS1115 devices contain 8 Digit-Registers,11 control-registers and 10 diagnostic-registers, which are listed in Table 6 . All registers are
selected using a 8-bit address word, and communication is done via the I2C interface.
Digit Registers – These registers are realized with an on-chip 64-bit memory. Each digit can be controlled directly without rewriting the
whole register contents.
Control Registers – These registers consist of decode mode, display intensity, number of scanned digits, shutdown, display test and fea-
tures selection registers.
Table 6. Register Address Map
Register
Digit 0
Digit 1
Digit 2
Digit 3
Digit 4
Digit 5
Digit 6
Digit 7
Decode-Mode
Global Intensity
Scan Limit
Shutdown
Self Addressing
Feature
Display Test Mode
DIG0:DIG1 Intensity
DIG2:DIG3 Intensity
DIG4:DIG5 Intensity
DIG6:DIG7 Intensity
D15:D13
000
000
000
000
000
000
000
000
000
000
000
000
001
000
000
000
000
000
000
D12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
D11
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
D10
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
Address
D9
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D8
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D7:D0
Page
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Revision 1.08
12 - 25
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1115-BSST-CUT TAPE | 制造商:AMS 功能描述:AS Series 5.5 V 3.4 MHz SMT I2C Interfaced LED Driver with Keyscan - QSOP-24 |
| AS1115DB | 制造商:AMS 功能描述:0 |
| AS1115-DB-Blue | 制造商:ams 功能描述:AS1115 Demo Brd w/blue LEDs |
| AS1115DB-BLUE | 制造商:AMS 功能描述:Demoboard for AS1115 LED Driver (Blue LED's) |
| AS1115-DB-Green | 制造商:ams 功能描述:AS1115 Demo Brd w/green LED |
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