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Switching characteristics – Cypress CY7C1318CV18-200BZI User Manual

Page 21

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CY7C1318CV18
CY7C1320CV18

Document Number: 001-07160 Rev. *F

Page 21 of 26

Output Times

t

CO

t

CHQV

C/C Clock Rise (or K/K in single clock mode) to

Data Valid

0.45

0.45

0.45

0.50

ns

t

DOH

t

CHQX

Data Output Hold after Output C/C Clock Rise

(Active to Active)

–0.45

–0.45

–0.45

–0.50

ns

t

CCQO

t

CHCQV

C/C Clock Rise to Echo Clock Valid

0.45

0.45

0.45

0.50

ns

t

CQOH

t

CHCQX

Echo Clock Hold after C/C Clock Rise

–0.45

–0.45

–0.45

–0.50

ns

t

CQD

t

CQHQV

Echo Clock High to Data Valid

0.27

0.30

0.35

0.40

ns

t

CQDOH

t

CQHQX

Echo Clock High to Data Invalid

–0.27

–0.30

–0.35

–0.40

ns

t

CQH

t

CQHCQL

Output Clock (CQ/CQ) HIGH

[23]

1.43

1.55

1.95

2.45

ns

t

CQHCQH

t

CQHCQH

CQ Clock Rise to CQ Clock Rise
(rising edge to rising edge)

[23]

1.43

1.55

1.95

2.45

ns

t

CHZ

t

CHQZ

Clock (C/C) Rise to High-Z

(Active to High-Z)

[24, 25]

0.45

0.45

0.45

0.50

ns

t

CLZ

t

CHQX1

Clock (C/C) Rise to Low-Z

[24, 25]

–0.45

–0.45

–0.45

–0.50

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, C)

1024

1024

1024

1024

Cycles

t

KC Reset

t

KC Reset

K Static to DLL Reset

30

30

30

30

ns

Switching Characteristics

(continued)

Over the Operating Range

[20, 21]

Cypress

Parameter

Consortium

Parameter

Description

267 MHz

250 MHz

200 MHz

167 MHz

Unit

Min Max Min Max Min Max Min Max

Notes

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

KHKH

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

KC Var

) is already

included in the t

KHKH

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

24. t

CHZ

, t

CLZ

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

AC Test Loads and Waveforms

. Transition is measured

±100 mV from steady-state voltage.

25. At any voltage and temperature t

CHZ

is less than t

CLZ

and t

CHZ

less than t

CO

.

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