M48T212Y-85MH6 데이터 시트보기 (PDF) - STMicroelectronics

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M48T212Y-85MH6

5.0V or 3.3V TIMEKEEPER® Supervisor

STMicroelectronics 

Figure 4. Hardware Hookup

M48T212Y, M48T212V

A0-A18

5V/3.3V

0.1µF

1N5817(1)

A0-A3

VCC

VCCSW

MOTOROLA

MTD20P06HDL

A0-Axx

A

VOUT

0.1µF

E

EX

W

E1CON

G

Note 2

E2CON

WDI

RSTIN1

RSTIN2

RST

DQ0-DQ7 IRQ/FT

VSS

M48T212Y/V

VCC

E2(3)

E

CMOS

SRAM

A0-Axx

VCC

E2(3)

E

CMOS

SRAM

Note: 1. See description in Power Supply Decoupling and Undershoot Protection.

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

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

AI03046

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