M48T58, M48T58Y

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TABLE OF CONTENTS

SUMMARY DESCRIPTION ... ...... ....... ...... ....... ...... ....... ...... ...... .....4

Logic Diagram (Figure 3.) . ...... ....... ...... ....... ...... ....... ...... ...... .....4

Signal Names (Table 1.) .. ...... ....... ...... ....... ...... ....... ...... ...... .....4

DIP Connections (Figure 4.) ..... ....... ...... ....... ...... ....... ...... ...... .....5

SOIC Connections (Figure 5.) .... ....... ...... ....... ...... ....... ...... ...... .....5

Block Diagram (Figure 6.) . ...... ....... ...... ....... ...... ....... ...... ...... .....5

MAXIMUM RATING... ...... ...... ....... ...... ....... ...... ....... ...... ...... .....6

Absolute Maximum Ratings (Table 2.) .... ...... ....... ...... ....... ...... ...... ..... 6

DC AND AC PARAMETERS. . ...... ....... ...... ....... ...... ....... ...... ...... .....7

Operating and AC Measurement Conditions (Table 3.) .... ...... ....... ...... ...... ..... 7

AC Measurement Load Circuit (Figure 7.) .. ...... ....... ...... ....... ...... ...... .....7

Capacitance (Table 4.) . . . ...... ....... ...... ....... ...... ....... ...... ...... .....7

DC Characteristics (Table 5.) .... ....... ...... ....... ...... ....... ...... ...... .....8

OPERATION MODES . ...... ...... ....... ...... ....... ...... ....... ...... ...... ..... 9

Operating Modes (Table 6.)...... ....... ...... ....... ...... ....... ...... ...... .....9

READ Mode...... ...... ...... ....... ...... ....... ...... ....... ...... ...... ....10

READ Mode AC Waveforms(Figure 8.) ... ...... ....... ...... ....... ...... ...... ....10

READ Mode AC Characteristics(Table 7.) . ...... ....... ...... ....... ...... ...... .... 11

WRITEMode ..... ...... ...... ....... ...... ....... ...... ....... ...... ...... ....12

WRITE Enable Controlled, WRITE AC Waveform (Figure 9.) ...... ....... ...... ...... ....12

Chip Enable Controlled, WRITE AC Waveforms (Figure 10.) ...... ....... ...... ...... ....13

WRITEMode AC Characteristics (Table 8.) ...... ....... ...... ....... ...... ...... ....14

Data Retention Mode..... ...... ....... ...... ....... ...... ....... ...... ...... ....15

Power Down/Up Mode AC Waveforms (Figure 11.) ....... ...... ....... ...... ...... ....15

Power Down/Up AC Characteristics (Table 9.) .... ....... ...... ....... ...... ...... ....16

Power Down/Up Trip Points DC Characteristics (Table 10.) . ...... ....... ...... ...... .... 16