G663 台湾致新代理商 GMT 复位芯片系列 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
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