M48T212A

4/20

Figure 3. Hardware Hookup

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

AI03049

A0-A3

DQ0-DQ7

A

VCC

W

G

WDI

RSTIN1

RSTIN2

VCAP

E

VCC

A0-Axx

0.1

µF

0.1

µF

3.3V

E2CON

RST

IRQ/FT

M48T212A

CMOS

SRAM

VOUT

E1CON

Note 2

MOTOROLA

MTD20P06HDL

VCCSW

EX

E

A0-A18

E

VCC

CMOS

SRAM

VSS

SuperCap Supply

A0-Axx

X0

XI

32 kHz

Crystal

Note: 1. DQ0-DQ7

3. Excluding open-drain output pins

AI03239

CL = 100pF or 5pF

(1)

CL = 30 pF

(2)

645

Ω

DEVICE

UNDER

TEST

1.75V

CL includes JIG capacitance

Table 5. AC Measurement Conditions

Note that Output Hi-Z is defined as the point where data

is no longer driven.

Input Rise and Fall Times

≤ 5ns

Input Pulse Voltages

0 to 3V

Input and Output Timing Ref. Voltages

1.5V