参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 119/158页
文件大小: 0K
描述: IC PMU POWER/AUDIO 124-CTBGA
标准包装: 2,500
应用: 便携式设备
电流 - 电源: 7mA
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 124-TFBGA
供应商设备封装: 124-CTBGA(8x8)
包装: 带卷 (TR)
AS3658
Data Sheet Confidential
- Detailed Description - System Functions
2
Figure 55. I C Current-Address-Read:
S
DR
A
data 1
A
data 2
A
data n
N P
read register
WA++
read register
WA++
read register
WA++
WA++
To keep the access time as small as possible, this format allows a read access without the word address transfer in
advance to the data transfer. The bus is idle and the master issues a START condition followed by the Device-Read
st
address. Analogous to Random-Read, a single byte transfer is terminated with a not-acknowledge after the 1 register
byte. Analogous to Sequential-Read an unlimited number of data bytes can be transferred, where the data bytes has to
be responded with an acknowledge from the master. For termination of the transmission the master sends a not-
acknowledge following the last data byte and a subsequent STOP condition.
10.2
Reset generator and XON-Key
XRESET is a low active bi-directional pin. An external pull-up to the periphery supply has to be added.
During each reset cycle the following states are controlled by the AS3658:
Pin XRESET is forced to GND
Programmable Power-off function
Programmable Power-on sequence and regulator voltages
Programmable reset timer
All registers are set to their default values after power-on, except the reset control- and status-registers.
Note: Programming is controlled by the internal Mask-PROM and the external resistor RPROGRAM
Table 123. XRESET,XON Characteristics
Symbol
V XRESET_IL
V XRESET_IH
Parameter
XRESET Low Level
input voltage
XRESET High Level
input voltage
Min
-0.3
1.3
Typ
Max
0.4
VSUPP
LY
Unit
V
V
Note
V XON_IL
V XON_IH
I XON_PUP
XON Low Level input
voltage
XON High Level input
XON Pull up current
-0.3
0.7*V2
_5
12
0.3*V2
_5
V2_5
μA
10.2.1 Reset Conditions
Reset can be activated from 7 different sources:
Power on (battery or charger insertion)
Low Battery
Software forced reset
Power off mode
External triggered through the pin RESET
Overtemperature
Watchdog
www.austriamicrosystems.com
Revision 1v13
118 - 157
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