参数资料
型号: AS8530-ASOT-001-500
厂商: ams
文件页数: 15/33页
文件大小: 0K
描述: IC TXRX LIN COMPANION 8-SOIC
标准包装: 500
系列: *
Revision 1.1
21 - 32
AS8530
Datasheet - Application In form atio n
Output RX.
The received BUS signal will be output to the RX pin:
BUS < Vthr_cnt – 0.5 * Vthr_hys
→ RX = low
BUS > Vthr_cnt + 0.5 * Vthr_hys
→ RX = high
This output is a push-pull driver between VCC and GND with an output current of 1mA.
Figure 10. RX Output Circuitry
8.6 MODE Input EN
The AS8530 is switched from normal mode to the standby/sleep mode with a falling edge on EN and keeping TX high for TSTNDY_trigger time.
Device is switched from standby mode to normal mode with a rising edge at the EN pin. The mode change for AS8530 with a falling edge at EN
can be done independently from the state of the bus transceiver. Device enters into Serial port mode by forcing EN low and driving TX high to low
within Ttx_SP_trigger time after EN forced to low.
This ensures the direct control of device to enter into Standby/Sleep mode by microcontroller using EN pin.
Figure 11. EN Pin Functionality
The EN input has an internal active pull down to secure that if this pin is not connected, a low level will be generated.
MCU
AS8530
VCC
RX
EN
TX
RD
WR
LEN
1
LEN
0
A4
D3 D2
D1 D0
Normal
Mode
Normal Mode
Serial Port Mode
Normal Mode
Standby/Sleep
Mode
Entry into Serial
Port Mode
Ttx_su
Ttx_hd
Ttx_su
Ttx_SP_trigger
TSTNDY_trigger
Ten_ENSCLK
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AS8530-ASOT-002 功能描述:IC TXRX LIN COMPANION 8-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 专用 系列:- 标准包装:3,000 系列:- 应用:PDA,便携式音频/视频,智能电话 接口:I²C,2 线串口 电源电压:1.65 V ~ 3.6 V 封装/外壳:24-WQFN 裸露焊盘 供应商设备封装:24-QFN 裸露焊盘(4x4) 包装:带卷 (TR) 安装类型:表面贴装 产品目录页面:1015 (CN2011-ZH PDF) 其它名称:296-25223-2
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