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IDT70P3337S250RM Datasheet(PDF) 11 Page - Integrated Device Technology

Part # IDT70P3337S250RM
Description  1024K/512K x18 SYNCHRONOUS DUAL QDR-II
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT70P3337S250RM Datasheet(HTML) 11 Page - Integrated Device Technology

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18/9Mb QDR-IITM x18 IDT70P3307/70P3337
SYNCHRONOUS Dual QDR-IITM
Preliminary Datasheet
Commercial Temperatue Range
11
July 16, 2007
AC Electrical Characteristics
(VDD = 1.8V ±100mV, VDDQ = 1.4V to 1.9V, TA(8) = 0 to 70°C)
Commercial
Com'l & Ind'l
Symbol
Parameter
250MHz
233MHz
Unit
Notes
Min.
Max.
Min.
Max.
Clock Parameters
tKHKH
Average clock cycle time (K,K,C,C)
4.006.304.307.20
ns
tKC var
Clock Phase Jitter (K,K,C,C)
__
0.20
__
0.20
ns
1,5
tKHKL
Clock High Time (K,K,C,C)1.60
__
1.80
__
ns
9
tKLKH
Clock LOW Time (K,K,C,C)1.60
__
1.80
__
ns
9
tKHKH
Clock to clock (K
→K,C→C)1.80
__
2.00
__
ns
10
tKHKH
Clock
to clock (K
→K,C→C)
1.80
__
2.00
__
ns
10
tKHCH
Clock to data clock (K
→C,K→C)
0.00
1.80
0.00
2.00
ns
tKC lock
DLL lock time (K, C)
1024
__
1024
__
cycles
2
tKC reset
K static to DLL reset
30
__
30
__
ns
Output Parameters
tCHQV
C,C HIGH to output valid
__
0.45
__
0.45
ns
3
tCHQX
C,C HIGH to output hold
-0.45
__
-0.45
__
ns
3
tCHCQV
C,C HIGH to echo clock valid
__
0.45
__
0.45
ns
3
tCHCQX
C,C HIGH to echo clock hold
-0.45
__
-0.45
__
ns
3
tCQHQV
CQ,CQ HIGH to output valid
__
0.30
__
0.32
ns
tCQHQX
CQ,CQ HIGH to output hold
-0.30
__
-0.32
__
ns
tCHQZ
C HIGH to output High-Z
__
0.45
__
0.45
ns
3,4,5
tCHQX1
C HIGH to output Low-Z
-0.45
__
-0.45
__
ns
3,4,5
Set-Up Times
tAVKH
Address valid to K,K rising edge
0.35
__
0.37
__
ns
6
tIVKH
Control inputs valid to K,K rising edge
0.35
__
0.37
__
ns
7
tDVKH
Date-in valid to K, K rising edge
0.35
__
0.37
__
ns
Hold Times
tKHAX
K,K rising edge to address hold
0.35
__
0.37
__
ns
6
tKHIX
K,K rising edge to control inputs hold
0.35
__
0.37
__
ns
7
tKHDX
K,K rising edge to data-in hold
0.35
__
0.37
__
ns
Port-to-Port Delay
tCO
Clock-to-Clock Offset
4.00
4.30
ns
6725 tbl15
NOTES:
1. Cycle to cycle period jitter is the variance from clock rising edge to the next expected clock rising edge, as defined per JEDEC Standard No. 65
(EIA/JESD65) page.
2. VDD slew rate must be less than 0.1V DC per 50ns for DLL lock retention. DLL lock time begins once VDD, VDDQ and input clock are stable.
3. If C, C are tied High, K, K become the references for C, C timing parameters.
4. To avoid bus contention, at a given voltage and temperature tCHQX1 is bigger than tCHQZ.
The specs as shown do not imply bus contention because tCHQX1 is a MIN parameter that is worst case at 0°C and 1.9V tCHQZ, is a MAX parameter
that is worst case at 70°C and 1.7V.
5. This parameter is guaranteed by device characterization, but not production tested.
6. All address inputs must meet the specified setup and hold times for all latching clock edges.
7. Control signals are R, W, BW0, BW1, E0, E1.
8. During production testing, the case temperature equals TA.
9. Clock High Time (tKHKL) and Clock Low Time (tKLKH) should be within 40% to 60%of the cycle time (tKHKH).
10. Clock to Clock time (tKHKH) and Clock to Clock time (tKHKH) should be within 45% to 55% of the cycle time (tKHKH).


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