Ac waveforms for read operation, Ac characteristics for read operation – Rainbow Electronics AT27BV4096 User Manual

Page 5

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AT27BV4096

5

AC Waveforms for Read Operation

(1)

Notes:

1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.

2. OE may be delayed up to t

CE

- t

OE

after the falling edge of CE without impact on t

CE

.

3. OE may be delayed up to t

ACC

- t

OE

after the address is valid without impact on t

ACC

.

4. This parameter is only sampled and is not 100% tested.

5. Output float is defined as the point when data is no longer driven.

6. When reading a 27BV4096, a 0.1

µ

F capacitor is required across V

CC

and ground to suppress spurious voltage transients.

AC Characteristics for Read Operation

V

CC

= 2.7V to 3.6V and 4.5V to 5.5V

Symbol

Parameter

Condition

AT27BV4096-12

AT27BV4096-15

Units

Min

Max

Min

Max

t

ACC

(3)

Address to Output Delay

CE = OE

= V

IL

120

150

ns

t

CE

(2)

CE to Output Delay

OE = V

IL

120

150

ns

t

OE

(2)(3)

OE to Output Delay

CE = V

IL

35

50

ns

t

DF

(4)(5)

OE or CE High to Output Float,
whichever occurred first

30

40

ns

t

OH

Output Hold from Address, CE or OE,
whichever occurred first

0

0

ns

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