參數(shù)資料
型號(hào): SM320C6701GJCA16EP
廠商: TEXAS INSTRUMENTS INC
元件分類: 數(shù)字信號(hào)處理
英文描述: 32-BIT, 166.67 MHz, OTHER DSP, PBGA352
封裝: 35 X 35 MM, PLASTIC, BGA-352
文件頁數(shù): 31/62頁
文件大?。?/td> 894K
代理商: SM320C6701GJCA16EP
SM320C6701EP, SM320C6701MECHEP
FLOATINGPOINT DIGITAL SIGNAL PROCESSOR
SGUS042A MAY 1998 REVISED APRIL 2004
37
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
SYNCHRONOUS DRAM TIMING
timing requirements for synchronous DRAM cycles (see Figure 18)
NO.
C6701-120
C6701-167
UNIT
NO.
MIN
MAX
UNIT
7
tsu(EDV-SDCLKH)
Setup time, read EDx valid before SDCLK high
1.8
ns
8
th(SDCLKH-EDV)
Hold time, read EDx valid after SDCLK high
3
ns
switching characteristics for synchronous DRAM cycles (see Figure 18Figure 23)
NO.
PARAMETER
C6701-120
C6701-167
UNIT
NO.
PARAMETER
MIN
MAX
MIN
MAX
UNIT
1
tosu(CEV-SDCLKH)
Output setup time, CEx valid before SDCLK high
1.5P 4
ns
2
toh(SDCLKH-CEV)
Output hold time, CEx valid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
3
tosu(BEV-SDCLKH)
Output setup time, BEx valid before SDCLK high
1.5P 4
ns
4
toh(SDCLKH-BEIV)
Output hold time, BEx invalid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
5
tosu(EAV-SDCLKH)
Output setup time, EAx valid before SDCLK high
1.5P 4
ns
6
toh(SDCLKH-EAIV)
Output hold time, EAx invalid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
9
tosu(SDCAS-SDCLKH)
Output setup time, SDCAS valid before SDCLK
high
1.5P 4
ns
10
toh(SDCLKH-SDCAS)
Output hold time, SDCAS valid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
11
tosu(EDV-SDCLKH)
Output setup time, EDx valid before SDCLK high
1.5P 4
ns
12
toh(SDCLKH-EDIV)
Output hold time, EDx invalid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
13
tosu(SDWE-SDCLKH)
Output setup time, SDWE valid before SDCLK high
1.5P 4
ns
14
toh(SDCLKH-SDWE)
Output hold time, SDWE valid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
15
tosu(SDA10V-SDCLKH)
Output setup time, SDA10 valid before SDCLK high
1.5P 4
ns
16
toh(SDCLKH-SDA10IV)
Output hold time, SDA10 invalid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
17
tosu(SDRAS-SDCLKH)
Output setup time, SDRAS valid before SDCLK
high
1.5P 4
ns
18
toh(SDCLKH-SDRAS)
Output hold time, SDRAS valid after SDCLK high
0.5P 1.9
0.5P 1.5
ns
When the PLL is used (CLKMODE x4), P = 1/CPU clock frequency in ns. For example, when running parts at 167 MHz, use P = 6 ns.
For CLKMODE x1:
1.5P = P + PH, where P = 1/CPU clock frequency, and PH = pulse duration of CLKIN high.
0.5P = PL, where PL = pulse duration of CLKIN low.
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參數(shù)描述
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