AT27LV520

7

AC Programming Characteristics*

Notes:

2. Program Pulse width tolerance is 50

3. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven

— see timing diagram.

Symbol

Test Conditions

Limits

Units

Min

Max

Address Latch Enable Width

Input Rise and Fall Times

(10% to 90%) 20 ns

Input Pulse Levels

0.45V to 2.4V

Input Timing Reference Level

0.8V to 2.0V

Output Timing Reference Level

0.8V to 2.0V

500

ns

Latched Address Setup Time

100

ns

Latched Address Hold Time

100

ns

2

µs

2

µs

2

µs

Data Setup Time

2

µs

Data Hold Time

2

µs

47.5

52.5

µs

2

µs

2

µs

150

ns

(4)

0130

ns

Address Setup Time

2

µs

Address Hold Time

0

µs

Programming

50

ns

Atmel’s 27LV520 Integrated Product Identification Code

Codes

Pins

Hex

Data

A8

AD7

AD6

AD5

AD4

AD3

AD2

AD1

AD0

Manufacturer

0

0

0011

110

1E

Device Type

1

1

0011

101

9D