S93WD462/S93WD463
PIN CONFIGURATION
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| 1 | 8 |
| VCC | ||
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SK |
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| 2 | 7 |
| RESET |
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DI |
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| 3 | 6 |
| RESET# | |
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DO |
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| 4 | 5 |
| GND | |
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2029 T PCon 2.0
PIN FUNCTIONS
Pin Name | Function |
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CS | Chip Select |
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SK | Clock Input |
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DI | Serial Data Input |
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DO | Serial Data Output |
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VCC | +2.7 to 6.0V Power Supply |
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GND | Ground |
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RESET/RESET# | RESET I/O |
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DEVICE OPERATION
APPLICATIONS
The S93WD462/WD463 is ideal for applications requir- ing low voltage and low power consumption. This device provides microcontroller RESET control and can be manually resettable.
RESET CONTROLLER DESCRIPTION
The S93WD462/WD463 provides a precision reset con- troller that ensures correct system operation during brownout and
During
VCC reaches the VTRIP threshold. The outputs will con- tinue to be driven for approximately 150ms after reaching
VTRIP. The reset outputs will be valid so long as VCC is ≥ 1.0V. During
The reset pins are I/Os; therefore, the S93WD462/ WD463 can act as a signal conditioning circuit for an
externally applied reset. The inputs are edge triggered; that is, the RESET input will initiate a reset
It should be noted the reset outputs are open drain. When used as outputs driving a circuit they need to be either tied high (RESET#) or tied to ground (RESET) through the use of
WATCHDOG TIMER DESCRIPTION
The S93WD462/WD463 has a watchdog timer with a nominal
watchdog times out, it will generate a reset output to both pins 6 and 7. The watchdog timer is reset by any transition on CS.
The watchdog timer will be held in a reset state during
GENERAL OPERATION
The S93WD462/WD463 is a
2 | 2029 2.2 1/23/01 | SUMMIT MICROELECTRONICS, Inc. |