參數(shù)資料
型號: UPD44647094F5-E30-FQ1
元件分類: SRAM
英文描述: 8M X 9 QDR SRAM, 0.45 ns, PBGA165
封裝: 15 X 17 MM, PLASTIC, BGA-165
文件頁數(shù): 9/36頁
文件大?。?/td> 479K
代理商: UPD44647094F5-E30-FQ1
17
Preliminary Data Sheet M18526EJ1V0DS
μPD44647094,44647184,44647364, 44647096,44647186,44647366
Read and Write Cycle
Parameter
Symbol
-E25
Note1
-E27
-E30
-E33
Unit
Note
(400 MHz)
(375 MHz)
(333 MHz)
(300 MHz)
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Clock
Average Clock cycle time (K, K#)
TKHKH
2.5
3.25
2.66
3.46
3.0
3.9
3.3
4.2
ns
2
Clock phase jitter (K, K#)
TKC var
0.20
0.20
0.20
0.20
ns
3
Clock HIGH time (K, K#)
TKHKL
0.4
0.4
0.4
0.4
TKHKH
Clock LOW time (K, K#)
TKLKH
0.4
0.4
0.4
0.4
TKHKH
Clock HIGH to Clock# HIGH
(K
→ K#)
TKHK#H
1.06
1.13
1.28
1.40
ns
Clock# HIGH to Clock HIGH
(K#
→ K)
TK#HKH
1.06
1.13
1.28
1.40
ns
DLL/PLL lock time (K)
TKC lock
2,048
2,048
2,048
2,048
Cycle
4
K static to DLL/PLL reset
TKC reset
30
30
30
30
ns
5
Output Times
CQ HIGH to CQ# HIGH (CQ
→ CQ#) TCQHCQ#H
0.9
0.98
1.15
1.3
ns
6
CQ# HIGH to CQ HIGH (CQ#
→ CQ) TCQ#HCQH
0.9
0.98
1.15
1.3
ns
6
K, K# HIGH to output valid
TKHQV
0.45
0.45
0.45
0.45
ns
K, K# HIGH to output hold
TKHQX
– 0.45
– 0.45
– 0.45
– 0.45
ns
K, K# HIGH to echo clock valid
TKHCQV
0.45
0.45
0.45
0.45
ns
K, K# HIGH to echo clock hold
TKHCQX
– 0.45
– 0.45
– 0.45
– 0.45
ns
CQ, CQ# HIGH to output valid
TCQHQV
0.20
0.20
0.20
0.20
ns
7
CQ, CQ# HIGH to output hold
TCQHQX
– 0.20
– 0.20
– 0.20
– 0.20
ns
7
K HIGH to output High-Z
TKHQZ
0.45
0.45
0.45
0.45
ns
K HIGH to output Low-Z
TKHQX1
– 0.45
– 0.45
– 0.45
– 0.45
ns
CQ, CQ# HIGH to QVLD valid
TCQHQVLD – 0.20
0.20
– 0.20
0.20
– 0.20 – 0.20 – 0.20
0.20
ns
Setup Times
Address valid to K rising edge
TAVKH
0.4
0.4
0.4
0.4
ns
8
Control inputs (R#, W#) valid to K
rising edge
TIVKH
0.4
0.4
0.4
0.4
ns
8
Data inputs and write data select
inputs (BWx#) valid to
K, K# rising edge
TDVKH
0.28
0.28
0.28
0.28
ns
8
Hold Times
K rising edge to address hold
TKHAX
0.4
0.4
0.4
0.4
ns
8
K rising edge to control inputs (R#,
W#) hold
TKHIX
0.4
0.4
0.4
0.4
ns
8
K, K# rising edge to data inputs and
write data select inputs (BWx#) hold
TKHDX
0.28
0.28
0.28
0.28
ns
8
Notes 1. -E25 is valid for 2.5 Cycle Read Latency products.
2. When debugging the system or board, these products can operate at a clock frequency slower than TKHKH
(MAX.) without the DLL/PLL circuit being used, if DLL# = LOW. Read latency (RL) is changed to 1.0 clock
regardless of RL = 2.0 and 2.5 clock products in this operation. The AC/DC characteristics cannot be
guaranteed, however.
3. Clock phase jitter is the variance from clock rising edge to the next expected clock rising edge. TKC var
(MAX.) indicates a peak-to-peak value.
4. VDD slew rate must be less than 0.1 V DC per 50 ns for DLL/PLL lock retention.
DLL/PLL lock time begins once VDD and input clock are stable.
It is recommended that the device is kept NOP (R# = W# = HIGH) during these cycles.
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