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Ac waveforms for read operation, Pin capacitance, Input test waveforms and measurement levels – Rainbow Electronics AT27C1024 User Manual

Page 5: Output test load

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AT27C1024

5

AC Waveforms for Read Operation

(1)

Notes:

1.

Timing measurement reference level is 1.5V for -45 and -55 devices. Input AC drive levels are V

IL

= 0.0V and V

IH

= 3.0V.

Timing measurement reference levels for all other speed grades are V

OL

= 0.8V and V

OH

= 2.0V. Input AC drive levels are

V

IL

= 0.45V and V

IH

= 2.4V.

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.

Note:

1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.

Pin Capacitance

f = 1 MHz, T = 25°C

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Symbol

Typ

Max

Units

Conditions

C

IN

4

10

pF

V

IN

= 0V

C

OUT

8

12

pF

V

OUT

= 0V

Input Test Waveforms and Measurement Levels

For -45 and -55
Devices Only

For -70 and slower
Devices Only

Output Test Load

Note:

C

L

= 100 pF including jig

capacitance except -45 and -55
devices, where C

L

= 30 pF.