X40020

The X40020,X40021 combines power-on reset control, watchdog timer, supply voltage supervision, and secondary supervision, and manual reset, in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

Applying voltage to VCC activates the power-on reset circuit which holds RESET/RESET active for a period of time. This allows the power supply and system oscillator to stabilize before the processor can execute code.

X40020 特点

• Dual voltage detection and reset assertion
  • Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V)
  • VTRIP2 programmable down to 0.9V
  • Adjust low voltage reset threshold voltages using special programming sequence
  • Reset signal valid to VCC = 1V
  • Monitor two voltages or detect power fail
• Battery switch backup
• VOUT: 5mA to 50mA from VCC, 250μA from VBATT
• Fault detection register
• Selectable power-on reset timeout (0.05s, 0.2s, 0.4s, 0.8s)
• Selectable watchdog timer interval (25ms, 200ms, 1.4s, off)
• Debounced manual reset input
• Low power CMOS
  • 25μA typical standby current, watchdog on
  • 6μA typical standby current, watchdog off
  • 1μA battery current in backup mode
• 400kHz 2-wire interface
• 2.7V to 5.5V power supply operation
• Available packages
  • 14-lead SOIC, TSSOP
• Monitor voltages: 5V to 1.6V
• Memory security
• Pb-free plus anneal available (RoHS compliant)

X40020 应用

• Communications equipment
  • Routers, hubs, switches
  • Disk arrays
• Industrial systems
  • Process control
  • Intelligent instrumentation
• Computer systems
  • Desktop computers
  • Network servers

X40020 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
X40020S14IZ-A	停产	工业级	14 Ld SOIC	3	1.99
X40020S14IZ-AT1	停产	工业级	14 Ld SOIC T +R	3	1.99
X40020S14IZ-B	停产	工业级	14 Ld SOIC	3	1.99
X40020S14IZ-BT1	停产	工业级	14 Ld SOIC T +R	3	1.99
X40020S14Z-A	停产	民用级	14 Ld SOIC	3	1.89
X40020S14Z-AT1	停产	民用级	14 Ld SOIC T +R	3	1.89
X40020S14Z-B	量产	民用级	14 Ld SOIC	3	1.89
X40020S14Z-BT1	量产	民用级	14 Ld SOIC T +R	3	1.89
X40020S14-A	停产	民用级	14 Ld SOIC	1	N/A
X40020S14-AT1	停产	民用级	14 Ld SOIC T +R	1	N/A
X40020S14-B	停产	民用级	14 Ld SOIC	1	N/A
X40020S14-BT1	停产	民用级	14 Ld SOIC T +R	1	N/A
X40020S14-C	停产	民用级	14 Ld SOIC	1	N/A
X40020S14-CT1	停产	民用级	14 Ld SOIC T +R	1	N/A
X40020S14I-A	停产	工业级	14 Ld SOIC	1	N/A
X40020S14I-AT1	停产	工业级	14 Ld SOIC T +R	1	N/A
X40020S14I-B	停产	工业级	14 Ld SOIC	1	N/A
X40020S14I-BT1	停产	工业级	14 Ld SOIC T +R	1	N/A
X40020S14I-C	停产	工业级	14 Ld SOIC	1	N/A
X40020S14I-CT1	停产	工业级	14 Ld SOIC T +R	1	N/A
X40020V14-A	停产	民用级	14 Ld TSSOP	1	N/A
X40020V14-AT1	停产	民用级	14 Ld TSSOP T+R	1	N/A
X40020V14-B	停产	民用级	14 Ld TSSOP	1	N/A
X40020V14-BT1	停产	民用级	14 Ld TSSOP T+R	1	N/A
X40020V14-C	停产	民用级	14 Ld TSSOP	1	N/A
X40020V14-CT1	停产	民用级	14 Ld TSSOP T+R	1	N/A
X40020V14I-A	停产	工业级	14 Ld TSSOP	1	N/A
X40020V14I-AT1	停产	工业级	14 Ld TSSOP T+R	1	N/A
X40020V14I-B	停产	工业级	14 Ld TSSOP	1	N/A
X40020V14I-BT1	停产	工业级	14 Ld TSSOP T+R	1	N/A
X40020V14I-C	停产	工业级	14 Ld TSSOP	1	N/A
X40020V14I-CT1	停产	工业级	14 Ld TSSOP T+R	1	N/A

X40020 应用技术支持与电子电路设计开发资源下载

1. X40020 数据资料 datatSheet 下载.PDF
2. Power 电源管理器件产品选型指南 . pdf