Cypress CY7C1318JV18 Computer Hardware User Manual


 
CY7C1316JV18, CY7C1916JV18
CY7C1318JV18, CY7C1320JV18
Document Number: 001-15271 Rev. *B Page 22 of 26
Switching Characteristics
Over the Operating Range
[19]
Cypress
Parameter
Consortium
Parameter
Description
300 MHz
Unit
Min Max
t
POWER
V
DD
(Typical) to the first Access
[20]
1–ms
t
CYC
t
KHKH
K Clock and C Clock Cycle Time 3.30 8.4 ns
t
KH
t
KHKL
Input Clock (K/K and C/C) HIGH 1.32 ns
t
KL
t
KLKH
Input Clock (K/K and C/C) LOW 1.32 ns
t
KHKH
t
KHKH
K Clock Rise to K Clock Rise and C to C Rise (rising edge to rising edge) 1.49 ns
t
KHCH
t
KHCH
K/K Clock Rise to C/C Clock Rise (rising edge to rising edge) 0.00 1.45 ns
Setup Times
t
SA
t
AVKH
Address Setup to K Clock Rise 0.4 ns
t
SC
t
IVKH
Control Setup to Clock (K, K) Rise (LD, R/W)0.4ns
t
SCDDR
t
IVKH
Double Data Rate Control Setup to Clock (K, K) Rise (BWS
0
, BWS
1
, BWS
2
, BWS
3
)0.3– ns
t
SD
t
DVKH
D
[X:0]
Setup to Clock (K and K) Rise 0.3 ns
Hold Times
t
HA
t
KHAX
Address Hold after Clock (K and K) Rise 0.4 ns
t
HC
t
KHIX
Control Hold after Clock (K and K) Rise (LD, R/W)0.4ns
t
HCDDR
t
KHIX
Double Data Rate Control Hold after Clock (K and K) Rise (BWS
0
, BWS
1
, BWS
2
, BWS
3
)0.3 ns
t
HD
t
KHDX
D
[X:0]
Hold after Clock (K and K) Rise 0.3 ns
Output Times
t
CO
t
CHQV
C/C Clock Rise (or K/K in single clock mode) to Data Valid 0.45 ns
t
DOH
t
CHQX
Data Output Hold after Output C/C Clock Rise (Active to Active) –0.45 ns
t
CCQO
t
CHCQV
C/C Clock Rise to Echo Clock Valid 0.45 ns
t
CQOH
t
CHCQX
Echo Clock Hold after C/C Clock Rise –0.45 ns
t
CQD
t
CQHQV
Echo Clock High to Data Valid 0.27 ns
t
CQDOH
t
CQHQX
Echo Clock High to Data Invalid –0.27 ns
t
CQH
t
CQHCQL
Output Clock (CQ/CQ) HIGH
[21]
1.24 ns
t
CQHCQH
t
CQHCQH
CQ Clock Rise to CQ Clock Rise
(rising edge to rising edge)
[21]
1.24 ns
t
CHZ
t
CHQZ
Clock (C and C) Rise to High-Z (Active to High-Z)
[22, 23]
–0.45ns
t
CLZ
t
CHQX1
Clock (C and C) Rise to Low-Z
[22, 23]
–0.45 ns
DLL Timing
t
KC Var
t
KC Var
Clock Phase Jitter 0.20 ns
t
KC lock
t
KC lock
DLL Lock Time (K, C) 1024 Cycles
t
KC Reset
t
KC Reset
K Static to DLL Reset 30 ns
Notes
20.This part has an internal voltage regulator; t
POWER
is the time that the power is supplied above V
DD
minimum initially before a read or write operation can be initiated.
21.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.
22.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.
23.At any voltage and temperature t
CHZ
is less than t
CLZ
and t
CHZ
less than t
CO
.
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