CY7C1021CV26

Document Number: 38-05589 Rev. *F

Page 6 of 16

AC Test Loads and Waveforms

Figure 3. AC Test Loads and Waveforms [5]

2.6 V

OUTPUT

R2

30 pF

INCLUDING

JIG AND

SCOPE

R1

1830



1976



2.6 V

OUTPUT

5 pF

R 317

R2

351



High Z characteristics:

90%

10%

2.6 V

GND

90%

10%

ALL INPUT PULSES

Rise Time: 1 V/ns

Fall Time: 1 V/ns

(c)

(b)

(a)

Switching Characteristics

Over the Operating Range

Parameter [6]

Description

-15

Unit

Min

Max

Read Cycle

Read cycle time

15

–

ns

Address to data valid

–

15

ns

Data hold from address change

3

–

ns

CE LOW to data valid

–

15

ns

OE LOW to data valid

–

7

ns

OE LOW to low Z[7]

0

–

ns

OE HIGH to high Z[7, 8]

–

7

ns

CE LOW to low Z[7]

3

–

ns

CE HIGH to high Z[7, 8]

–

7

ns

CE LOW to power-up

0

–

ns

CE HIGH to power-down

–

15

ns

Byte enable to data valid

–

7

ns

Byte enable to low Z

0

–

ns

Byte disable to high Z

–

7

ns

Notes

5. AC characteristics (except high Z) are tested using the Thevenin load shown in Figure 3 (a). High Z characteristics are tested for all speeds using the test load

shown inFigure 3 (c).

6. Test conditions assume signal transition time of 2.6 ns or less, timing reference levels of 1.3 V, input pulse levels of 0 to 2.6 V.

9. This parameter is guaranteed by design and is not tested.

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