參數(shù)資料
型號(hào): TMSC6701
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: FLOATING POINT DIGITAL SIGNAL PROCESSOR
中文描述: 浮點(diǎn)數(shù)字信號(hào)處理器
文件頁數(shù): 34/64頁
文件大小: 862K
代理商: TMSC6701
SPRS067E – MAY 1998 – REVISED MAY 2000
34
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
SYNCHRONOUS-BURST MEMORY TIMING
timing requirements for synchronous-burst SRAM cycles (full-rate SSCLK)
(see Figure 14)
NO.
’C6701-120
’C6701-150
’C6701-167
UNIT
MIN
MAX
MIN
MAX
7
tsu(EDV-SSCLKH)
th(SSCLKH-EDV)
Setup time, read EDx valid before SSCLK high
2.0
2.0
ns
8
Hold time, read EDx valid after SSCLK high
2.9
2.1
ns
switching characteristics for synchronous-burst SRAM cycles
(full-rate SSCLK)
(see Figure 14 and Figure 15)
NO.
PARAMETER
’C6701-120
’C6701-150
’C6701-167
UNIT
MIN
MAX
MIN
MAX
1
tosu(CEV-SSCLKH)
toh(SSCLKH-CEV)
tosu(BEV-SSCLKH)
toh(SSCLKH-BEIV)
tosu(EAV-SSCLKH)
toh(SSCLKH-EAIV)
tosu(ADSV-SSCLKH)
toh(SSCLKH-ADSV)
tosu(OEV-SSCLKH)
toh(SSCLKH-OEV)
tosu(EDV-SSCLKH)
toh(SSCLKH-EDIV)
tosu(WEV-SSCLKH)
toh(SSCLKH-WEV)
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, 0.5P is defined as PH (pulse duration of CLKIN high) for all output setup times; 0.5P is defined as PL (pulse duration of CLKIN
low) for all output hold times.
Output setup time, CEx valid before SSCLK high
0.5P – 1.3
0.5P – 1.3
ns
2
Output hold time, CEx valid after SSCLK high
0.5P – 2.9
0.5P – 2.3
ns
3
Output setup time, BEx valid before SSCLK high
0.5P – 1.3
0.5P – 1.6
ns
4
Output hold time, BEx invalid after SSCLK high
0.5P – 2.9
0.5P – 2.3
ns
5
Output setup time, EAx valid before SSCLK high
0.5P – 1.3
0.5P – 1.7
ns
6
Output hold time, EAx invalid after SSCLK high
0.5P – 2.9
0.5P – 2.3
ns
9
Output setup time, SSADS valid before SSCLK high
0.5P – 1.3
0.5P – 1.3
ns
10
Output hold time, SSADS valid after SSCLK high
0.5P – 2.9
0.5P – 2.3
ns
11
Output setup time, SSOE valid before SSCLK high
0.5P – 1.3
0.5P – 1.3
ns
12
Output hold time, SSOE valid after SSCLK high
0.5P – 2.9
0.5P – 2.3
ns
13
Output setup time, EDx valid before SSCLK high
0.5P – 1.3
0.5P – 1.3
ns
14
Output hold time, EDx invalid after SSCLK high
0.5P – 2.9
0.5P – 2.3
ns
15
Output setup time, SSWE valid before SSCLK high
0.5P – 1.3
0.5P – 1.3
ns
16
Output hold time, SSWE valid after SSCLK high
0.5P – 2.9
0.5P – 2.3
ns
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