参数资料
型号: MIC2789-XYMT TR
厂商: Micrel Inc
文件页数: 1/17页
文件大小: 0K
描述: IC DUAL PUSH BUTTON RESET 8MLF
特色产品: MIC2788/89 Push Button Reset IC
标准包装: 1
类型: 多压监控器
监视电压数目: 2
输出: 开路漏极,推挽式
复位: 高有效/低有效
复位超时: 最小为 140 ms
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-UFDFN 裸露焊盘,8-TMLF?
供应商设备封装: 8-TMLF?(2x2)
包装: 标准包装
其它名称: 576-4008-6
MIC2788/MIC2789
Push-Button Reset IC
thin MLF (2mm x 2mm x 0.55mm) package.
General Description
The MIC2788/MIC2789 are low-current, ultra-small, push-
button reset supervisors with long set-up delays. The
devices feature two manual reset inputs and two reset
outputs. The devices initiate a reset for the reset timeout
period when the /MR0 and /MR1 inputs are asserted low
for a period longer than the set-up delay. The two manual
reset inputs and long set-up period help to avoid
unintended system resets. Both manual reset inputs can
be tied together if a single push-button reset is desired.
The MIC2788 features integrated pull-up resistors on the
/MR0 and /MR1 inputs, while the MIC2789 requires
external pull-up resistors. The PDY input pin selects
between a 2s, 4s or 6s set-up period. Factory-programmed
reset timeout periods of 140ms (min.) and 240ms (min.)
are available. An active-low, open-drain reset output
(/RST) and an active-high, push-pull reset output (RSTP)
provide flexibility when interfacing to various
microcontrollers, PMICs, or load switches.
The MIC2788/MIC2789 consume a quiescent current of
only 2.9μA and are offered in a tiny, space-saving 8-pin
?
Features
? 1.6V to 5.5V operating voltage
? 2.9μA supply current when /MR0, /MR1 are not
asserted
? Asserting /MR0 and /MR1 for longer than set-up delay
asserts reset output for the reset timeout period
? Programmable delay (PDY) input selects 2.0s, 4.0s or
6.0s set-up delay
? Factory-programmed 140ms (min.) or 240ms (min.)
reset timeout period
? Integrated /MR0, /MR1 pull-up resistors (MIC2788)
? Dual Reset Outputs:
? Open-drain active-low reset (/RST) output
? Push-pull active-high reset (RSTP) output
? ? 40°C to 85°C ambient operating temperature range
? 8-pin 2mm x 2mm x 0.55mm thin MLF ? package
Applications
? Smart phones
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com .
?
?
?
?
MP3 players
Portable navigation devices
Set-top boxes (STBs)
Tablets/pads
_________________________________________________________________________________________________________________________
Typical Application
MLF and Micro LeadFrame are registered trademarks of Amkor Technologies, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
October 2011
M9999-102711-A
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