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Document Number: 001-07037 Rev. *D Page 24 of 30
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 – 0.45 – 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 – –0.45 – –0.50 – ns
t
CCQO
t
CHCQV
C/C Clock Rise to Echo Clock Valid
– 0.45 – 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 – –0.45 – –0.50 – ns
t
CQD
t
CQHQV
Echo Clock High to Data Valid 0.27 0.27 0.30 0.35 0.40 ns
t
CQDOH
t
CQHQX
Echo Clock High to Data Invalid –0.27 – –0.27 – –0.30 – –0.35 – –0.40 – ns
t
CQH
t
CQHCQL
Output Clock (CQ/CQ) HIGH
[26]
1.24–1.35–1.55–1.95–2.45– ns
t
CQHCQH
t
CQHCQH
CQ Clock Rise to CQ Clock Rise
(rising edge to rising edge)
[26]
1.24–1.35–1.55–1.95–2.45– ns
t
CHZ
t
CHQZ
Clock (C/C) Rise to High-Z
(Active to High-Z)
[27, 28]
– 0.45 – 0.45 – 0.45 – 0.45 – 0.50 ns
t
CLZ
t
CHQX1
Clock (C/C) Rise to Low-Z
[27, 28]
–0.45 – –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 – 0.20 ns
t
KC lock
t
KC lock
DLL Lock Time (K, C) 1024 – 1024 – 1024 – 1024 – 1024 – Cycles
t
KC Reset
t
KC Reset
K Static to DLL Reset 30 30 30 30 30 ns
Switching Characteristics (continued)
Over the Operating Range
[22, 23]
Cypress
Parameter
Consortium
Parameter
Description
300 MHz 278 MHz 250 MHz 200 MHz 167 MHz
Unit
Min Max Min Max Min Max Min Max Min Max
Notes
26. 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
27. 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.
28. At any voltage and temperature t
CHZ
is less than t
CLZ
and t
CHZ
less than t
CO
.
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