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Switching characteristics – Cypress Perform CY7C1561V18 User Manual

Page 23

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CY7C1561V18, CY7C1576V18
CY7C1563V18, CY7C1565V18

Document Number: 001-05384 Rev. *F

Page 23 of 28

Switching Characteristics

Over the Operating Range

[23, 24]

CY

Parameter

Consortium

Parameter

Description

400 MHz

375 MHz

333 MHz

300 MHz

Unit

Min

Max

Min

Max

Min

Max

Min

Max

t

POWER

V

DD

(Typical) to the First Access

[25]

1

1

1

1

ms

t

CYC

t

KHKH

K Clock Cycle Time

2.50 8.40 2.66 8.40

3.0

8.40

3.3

8.40

ns

t

KH

t

KHKL

Input Clock (K/K) HIGH

0.4

0.4

0.4

0.4

t

CYC

t

KL

t

KLKH

Input Clock (K/K) LOW

0.4

0.4

0.4

0.4

t

CYC

t

KHKH

t

KHKH

K Clock Rise to K Clock Rise
(rising edge to rising edge)

1.06

1.13

1.28

1.40

ns

Setup Times

t

SA

t

AVKH

Address Setup to K Clock Rise

0.4

0.4

0.4

0.4

ns

t

SC

t

IVKH

Control Setup to K Clock Rise (RPS, WPS)

0.4

0.4

0.4

0.4

ns

t

SCDDR

t

IVKH

Double Data Rate Control Setup to Clock (K/K)
Rise (BWS

0

, BWS

1

,

BWS

2

, BWS

3

)

0.28

0.28

0.28

0.28

ns

t

SD

t

DVKH

D

[X:0]

Setup to Clock (K/K) Rise

0.28

0.28

0.28

0.28

ns

Hold Times

t

HA

t

KHAX

Address Hold after K Clock Rise

0.4

0.4

0.4

0.4

ns

t

HC

t

KHIX

Control Hold after K Clock Rise (RPS, WPS)

0.4

0.4

0.4

0.4

ns

t

HCDDR

t

KHIX

Double Data Rate Control Hold after Clock (K/K)
Rise (BWS

0

, BWS

1

,

BWS

2

, BWS

3

)

0.28

0.28

0.28

0.28

ns

t

HD

t

KHDX

D

[X:0]

Hold after Clock (K/K) Rise

0.28

0.28

0.28

0.28

ns

Output Times

t

CO

t

CHQV

K/K Clock Rise to Data Valid

0.45

0.45

0.45

0.45

ns

t

DOH

t

CHQX

Data Output Hold after Output K/K Clock Rise
(Active to Active)

–0.45

–0.45

–0.45

–0.45

ns

t

CCQO

t

CHCQV

K/K Clock Rise to Echo Clock Valid

0.45

0.45

0.45

0.45

ns

t

CQOH

t

CHCQX

Echo Clock Hold after K/K Clock Rise

–0.45

–0.45

–0.45

–0.45

ns

t

CQD

t

CQHQV

Echo Clock High to Data Valid

0.2

0.2

0.2

0.2

ns

t

CQDOH

t

CQHQX

Echo Clock High to Data Invalid

–0.2

–0.2

–0.2

–0.2

ns

t

CQH

t

CQHCQL

Output Clock (CQ/CQ) HIGH

[26]

0.81

0.88

1.03

1.15

ns

t

CQHCQH

t

CQHCQH

CQ Clock Rise to CQ Clock Rise

[26]

(rising edge to rising edge)

0.81

0.88

1.03

1.15

ns

t

CHZ

t

CHQZ

Clock (K/K) Rise to High-Z
(Active to High-Z)

[26, 27]

0.45

0.45

0.45

0.45

ns

t

CLZ

t

CHQX1

Clock (K/K) Rise to Low-Z

[26, 27]

–0.45

–0.45

–0.45

–0.45

ns

t

QVLD

t

CQHQVLD

Echo Clock High to QVLD Valid

[29]

–0.20 0.20 –0.20 0.20 –0.20 0.20 –0.20 0.20

ns

DLL Timing

t

KC Var

t

KC Var

Clock Phase Jitter

0.20

0.20

0.20

0.20

ns

t

KC lock

t

KC lock

DLL Lock Time (K)

2048

2048

2048

2048

cycles

t

KC Reset

t

KC Reset

K Static to DLL Reset

[30]

30

30

30

30

ns

Notes

24. When a part with a maximum frequency above 300 MHz is operating at a lower clock frequency, it requires the input timings of the frequency range in which it is being

operated and outputs data with the output timings of that frequency range.

25. This part has a voltage regulator internally; t

POWER

is the time that the power is supplied above VDD minimum initially before a read or write operation can be initiated.

26. These parameters are extrapolated from the input timing parameters (t

KHKH

- 250ps, where 250ps is the internal jitter. An input jitter of 200ps(t

KCVAR

) is already included

in the t

KHKH

). These parameters are only guaranteed by design and are not tested in production.

27. t

CHZ

, t

CLZ

, are specified with a load capacitance of 5 pF as in part (b) of

“AC Test Loads and Waveforms”

on page 22. Transition is measured ± 100 mV from steady-state

voltage.

28. At any given voltage and temperature t

CHZ

is less than t

CLZ

and t

CHZ

less than t

CO

.

29. t

QVLD

spec is applicable for both rising and falling edges of QVLD signal.

30. Hold to >V

IH

or

IL

.

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