M48T212VSH Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

M48T212VSH

3.3V TIMEKEEPER® supervisor

STMicroelectronics 

Description

Figure 3. Hardware hookup

M48T212V

A0-A18

5V/3.3V

1N5817(1)

A0-A3

VCC

VCCSW

A

VOUT

E

EX

W

E1CON

G

Note 2

E2CON

WDI

RSTIN1

RSTIN2

RST

DQ0-DQ7 IRQ/FT

VSS

M48T212V

MOTOROLA

MTD20P06HDL

A0-Axx

VCC

E2(3)

E

CMOS

SRAM

A0-Axx

VCC

E2(3)

E

CMOS

SRAM

1. Traces connecting E1CON and E2CON to external SRAM should be as short as possible.

2. If the second chip enable pin (E2) is unused, it should be tied to VOUT.

Note:

See description in Power Supply Decoupling and Undershoot Protection.

AI03046

8/35

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