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R1QBA7218ABG Folha de dados(PDF) 23 Page - Renesas Technology Corp

Nome de Peças R1QBA7218ABG
Descrição Electrónicos  72-Mbit DDRII SRAM 2-word Burst
Download  39 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R1QBA7218ABG Folha de dados(HTML) 23 Page - Renesas Technology Corp

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R1QBA72 / R1QEA72 Series
Rev. 0.11 : 2013.01.15
PAGE:23
hinS=00000.0111.0111.0000.0000---
00000.0111.0111.0000.0000
---
00000.0000.0000.0000.0000---RL=2.5
AC Characteristics (Read Latency = 2.5 cycle)
(Ta =
0 ~ +70
°C @ R1Q*A*****BG-**R** series)
(Ta = -40 ~ +85
°C @ R1Q*A*****BG-**I** series)
(V
DD =1.8V ±0.1V, VDDQ =1.5V, VREF = 0.75V)
Parameter
Symbol
-19
-20
-22
-25
-27
-30
Unit Notes
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Clock
Average clock
cycle time
(K, /K)
t
KHKH
1.875 4.00
2.00
4.00
2.22
4.00
2.50
4.00
2.66
4.00
3.00
4.00
ns
Clock high time
(K, /K)
t
KHKL
0.40
0.40
0.40
0.40
0.40
0.40
Cy-
cle
Clock low time
(K, /K)
t
KLKH
0.40
0.40
0.40
0.40
0.40
0.40
Cy-
cle
Clock to /clock
(K to /K)
t
KH/KH
0.425
0.425 0.425 0.425 0.425 0.425
Cy-
cle
/Clock to clock
(/K to K)
t
/KHKH
0.425
0.425 0.425 0.425 0.425 0.425
Cy-
cle
⎯⎯
⎯⎯
DLL/PLL Timing
Clock phase
jitter
(K, /K)
t
KC var
0.15
0.15
0.15
0.20
0.20
0.20
ns
3
Lock time
(K)
t
KC lock
20
20
20
20
20
20
us
2
K static to
DLL/PLL reset
t
KC reset
30
30
30
30
30
30
ns
7
Output Times
K, /K high to
output valid
t
CHQV
0.45
0.45
0.45
0.45
0.45
0.45
ns
K, /K high to
output hold
t
CHQX
−0.45 −0.45 −0.45 −0.45 −0.45 −0.45
ns
K, /K high to
echo clock valid
t
CHCQV
0.45
0.45
0.45
0.45
0.45
0.45
ns
K, /K high to
echo clock hold
t
CHCQX
−0.45 −0.45 −0.45 −0.45 −0.45 −0.45
ns
CQ, /CQ high to
output valid
t
CQHQV
0.15
0.15
0.15
0.20
0.20
0.20
ns
4, 7
CQ, /CQ high to
output hold
t
CQHQX
−0.15 −0.15 −0.15 −0.20 −0.20 −0.20
ns
4, 7
K, /K high to
output high-Z
t
CHQZ
0.45
0.45
0.45
0.45
0.45
0.45
ns
5, 6
K, /K high to
output low-Z
t
CHQX1
−0.45 −0.45 −0.45 −0.45 −0.45 −0.45
ns
5
CQ high to
QVLD valid
t
QVLD
−0.15 0.15 −0.15 0.15 −0.15 0.15 −0.20 0.20 −0.20 0.20 −0.20 0.20 ns
7
R10DS0181EJ0011


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