SMS2902SA データシートの表示（PDF） - Summit Microelectronics

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SMS2902SA

Voltage Supervisory Circuit With Watchdog Timer

Summit Microelectronics 

PB_RST#

SMS2902/SMS2904/SMS2916

VCC = 3.0V or 5.0V

SMS29xx

WDI#

RESET#

NC

GND

VCC

RESET

SCL

SDA

I2C Peripheral

ALE

8051 Type

MCU

RST

SCL (P0.0)

SDA (P0.1)

RESET#

SCL

SDA

2028 T fig12 2.0

TYPICAL APPLICATION USING DUAL RESET FUNCTION AND WATCHDOG TIMER

PB_RST#

5.0VDC

SMS29xx

WDI#

RESET#

NC

GND

VCC

RESET

SCL

SDA

Z80

I/O

I/O

DECODER

RST#

2028 T fig13 2.0

TYPICAL APPLICATION CONFIGURATION USING SYSTEM DECODE LOGIC TO RESET WDI

5.0VDC

1232

PBRST#

TOL

GND

VCC

ST#

RST#

RST

24C16

GND

2028 5.0 4/18/00

SCL

SDA

From This

ALE

RST

8051

Family

I/O Part

I/O

12

VCC

SMS29xx

WDI#

RESET#

NC

GND

VCC

RESET

SCL

SDA

ALE

8051

Family

RST Part

I/O

I/O

2028 T fig14 2.0

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