M48T512V-70PM1(2010) 查看數據表（PDF） - STMicroelectronics

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M48T512V-70PM1
(Rev.:2010)

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

STMicroelectronics 

Operating modes

M48T512Y, M48T512V

Figure 4. READ mode AC waveforms

A0-A18

E

G

DQ0-DQ7

tAVQV

tELQV

tAVAV

VALID

tELQX

tGLQV

tGLQX

tAXQX

tEHQZ

tGHQZ

DATA OUT

AI02389

Note:

WE = High.

Table 3. READ mode AC characteristics

Symbol

Parameter(1)

M48T512Y

–70

M48T512V

–85

Min

Max

Min

Max

tAVAV

READ cycle time

70

85

tAVQV

Address valid to output valid

70

85

tELQV

Chip enable low to output valid

70

85

tGLQV

Output enable low to output valid

40

55

tELQX(2)

Chip enable low to output transition

5

5

tGLQX(2)

Output enable low to output transition

5

5

tEHQZ(2)

Chip enable high to output Hi-Z

25

30

tGHQZ(2)

Output enable high to output Hi-Z

25

30

tAXQX

Address transition to output transition

10

5

1. Valid for ambient operating temperature: TA = 0 to 70 °C; VCC = 4.5 to 5.5 V or 3.0 to 3.6 V (except where noted).

2. CL = 5 pF.

Unit

ns

ns

ns

ns

ns

ns

ns

ns

ns

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Doc ID 5747 Rev 6

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