参数资料
型号: IDT709349L7BF
厂商: IDT, Integrated Device Technology Inc
文件页数: 10/16页
文件大小: 0K
描述: IC SRAM 72KBIT 7NS 100FBGA
标准包装: 60
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,同步
存储容量: 72K(4K x 18)
速度: 7ns
接口: 并联
电源电压: 4.5 V ~ 5.5 V
工作温度: 0°C ~ 70°C
封装/外壳: 100-LFBGA
供应商设备封装: 100-CABGA(10x10)
包装: 托盘
其它名称: 709349L7BF
IDT709359/49L
High-Speed 8/4K x 18 Synchronous Pipelined Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Timing Waveform of a Bank Select Pipelined Read (1,2)
t CYC2
CLK
t CH2
t CL2
t SA
t HA
ADDRESS (B1)
A 0
A 1
A 2
A 3
A 4
A 5
A 6
CE 0(B1)
t SC
t HC
t SC t HC
t CD2
t CD2
(3)
t CKHZ
t CD2
DATA OUT(B1)
Q 0
t DC
Q 1
t DC
t CKLZ
(3)
Q 3
t CKHZ (3)
t SA
t HA
ADDRESS (B2)
A 0
A 1
A 2
A 3
A 4
A 5
A 6
t SC t HC
CE 0(B2)
t SC
t HC
t CD2
t CKHZ (3)
t CD2
DATA OUT(B2)
t CKLZ
(3)
Q 2
t CKLZ (3)
Q 4
5633 drw 09
Timing Waveform of Write with Port-to-Port Flow-Through Read (4,5,7)
CLK "A"
R/ W "A"
t SW
t SA
t HW
t HA
ADDRESS "A"
DATA IN "A"
MATCH
t SD
t HD
VALID
t CCS
(6)
NO
MATCH
CLK "B"
t CD1
R/ W "B"
t SW
t SA
t HW
t HA
ADDRESS "B"
MATCH
t CWDD (6)
NO
MATCH
t CD1
DATA OUT "B"
NOTES:
t DC
VALID
t DC
VALID
5633 drw 10
1. B1 Represents Bank #1; B2 Represents Bank #2. Each Bank consists of one IDT709359/49 for this waveform, and are setup for depth expansion in this
example. ADDRESS (B1) = ADDRESS (B2) in this situation.
2. UB , LB , OE , and ADS = V IL ; CE 1(B1) , CE 1(B2) , R/ W , CNTEN , and CNTRST = V IH .
3. Transition is measured 0mV from Low or High-impedance voltage with the Output Test Load (Figure 2).
4. CE 0 , UB , LB , and ADS = V IL ; CE 1 , CNTEN , and CNTRST = V IH .
5. OE = V IL for the Right Port, which is being read from. OE = V IH for the Left Port, which is being written to.
6. If t CCS < maximum specified, then data from right port READ is not valid until the maximum specified for t CWDD .
If t CCS > maximum specified, then data from right port READ is not valid until t CCS + t CD1 . t CWDD does not apply in this case.
7. All timing is the same for both Left and Right ports. Port "A" may be either Left or Right port. Port "B" is the opposite from Port "A".
10
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