M68AW511A datasheet(13/21 Pages) STMICROELECTRONICS

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M68AW511A

Table 7. Read and Standby Mode AC Characteristics

Note: 1. Test conditions assume transition timing reference level = 0.3VCC or 0.7VCC.

2. At any given temperature and voltage condition, tEHQZ is less than tELQX and tGHQZ is less than tGLQX for any given device.

3. These parameters are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output

voltage levels.

Symbol

Parameter

M68AW511A

Unit

tAVAV

Read Cycle Time

Min

tAVQV

Address Valid to Output Valid

Max

tAXQX

(1)

Data hold from Address change

Min

tEHQZ

(2,3)

Chip Enable High to Output Hi-Z

Max

tELQV

Chip Enable Low to Output Valid

Max

tELQX

(1)

Chip Enable Low to Output Transition

Min

tGHQZ

(2,3)

Output Enable High to Output Hi-Z

Max

tGLQV

Output Enable Low to Output Valid

Max

tGLQX

(1)

Output Enable Low to Output Transition

Min

tPD

Chip Enable High to Power Down

Max

tPU

Chip Enable Low to Power Up

Min

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