M48T512V(2010) Просмотр технического описания (PDF) - STMicroelectronics

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M48T512V
(Rev.:2010)

5.0 or 3.3 V, 4 Mbit (512 Kbit x 8) TIMEKEEPER® SRAM

STMicroelectronics 

M48T512Y, M48T512V

1

Description

Description

The M48T512Y/V TIMEKEEPER® RAM is a 512 Kb x 8 non-volatile static RAM and real-

time clock organized as 524,288 words by 8 bits. The special DIP package provides a fully

integrated battery-backed memory and real-time clock solution.

The M48T512Y/V directly replaces industry standard 512 Kb x 8 SRAMs. It also provides

the non-volatility of Flash without any requirement for special WRITE timing or limitations on

the number of WRITEs that can be performed.

Figure 1. Logic diagram

VCC

19

A0-A18

W

E

G

M48T512Y

M48T512V

8

DQ0-DQ7

Table 1. Signal names

A0-A18

DQ0-DQ7

E

G

W

VCC

VSS

VSS

Address inputs

Data inputs / outputs

Chip enable input

Output enable input

WRITE enable input

Supply voltage

Ground

AI02262

Doc ID 5747 Rev 6

5/23

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