G663 台湾致新代理商 GMT 重置系列 嵌入式延迟时间
Microprocessor Reset IC

Part Number	Vin (V)min.	Vin (V) max.	Detecting Voltage (V)	Manual Input	Delay (ms)	Isupply(uA)	Note	Package
G663	1.1	5.5	2.25/2.63/ 2.93/4.55	Y	200	10	Push-Pull Output Dual outputs	SOT-23-5

 

General Description
The  G663  provide  circuits  initialization  and  timing  su-pervision, primarily for DSP and processor-based sys-tems. During power-on, RESET(RESET) is asserted when supply voltage VCC becomes higher than 1.1 V. Thereafter,  the  supply  voltage  supervisor  monitors  VCC  and  keeps  RESET(RESET)  active  as  long  as  VCC remains below the threshold voltage VIT+(1).

An internal timer delays the return of the output to the inactive  state  to  ensure  proper  system  reset.  The  de-lay  time,  td,  starts  after  VCC  has  risen  above  the  threshold voltage VIT+. When the supply voltage drops below  the  threshold  voltage  VIT-(2),  the  outputs  be-comes  active  again.  No  external  components  are  re-quired.  All  the  devices  have  a  fixed-sense  threshold  voltage VIT- set by an internal voltage divider.

The  G663  incorporate  a  manual  reset  input  MR.  A  low  level  at  MR  causes  RESET   (RESET)  to  be-come  active.  The  product  spectrum  is  designed  for  supply voltages of 2.5V, 3V, 3.3V, and 5V. The circuits are available in a SOT-23-5 package.

Note:
(1) VIT+ means the reset voltage of VCC from low to high
(2) VIT- means the reset voltage of VCC from high to low.

Features „
Power-On Reset Generator With Fixed Delay Time of 200ms „
Manual Reset Input „
Push-Pull RESET and RESET Output
„Supply Voltage Supervision Range   2.5V, 3V, 3.3V, 5V „
Supply Current of 10μA at VCC=3.3V „
SOT-23-5 Package

Applications
„Critical μP and μC Power Monitoring
„Industrial Equipment
„Programmable Controls
„Automotive Systems
„Portable/Battery-Powered Equipment
„Intelligent Instruments „
Wireless Communications Systems „
Notebook/Desktop Computers

Ordering Information

ORDER NUMBER	RESET THRESHOLD (V)	MARKING	TEMP. RANGE	OUTPUT TYPE	PACKAGE (Green)
G663-225T11U	2.25	663Ax	~40°C to 85°C	Push-Pull RESET& RESET	SOT-23-5
G663-263T11U	2.63	663Bx	~40°C to 85°C	Push-Pull RESET& RESET	SOT-23-5
G663-293T11U	2.93	663Cx	~40°C to 85°C	Push-Pull RESET& RESET	SOT-23-5
G663-455T11U	4.55	663Dx	~40°C to 85°C	Push-Pull RESET& RESET	SOT-23-5

Note: T1: SOT-23-5 1: Bonding Code U: Tape & Reel

Pin  Configuration                                                                                            Typical  Application  Circuit

致新GMT代理商，还有更多精彩文章致新电源管理IC分享《致新G660 G661 G662》《致新G632》