参数资料
型号: TMS320C542PGE-40
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 16-BIT, 100 MHz, OTHER DSP, PQFP144
封装: PLASTIC, QFP-144
文件页数: 81/111页
文件大小: 1467K
代理商: TMS320C542PGE-40
TMS320C54x, TMS320LC54x, TMS320VC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999
71
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
memory and parallel I/O interface timing (continued)
switching characteristics over recommended operating conditions for a memory write
(MSTRB = 0) [H = 0.5 tc(CO)] (see Figure 17)
PARAMETER
’C54x-40
’LC54x-40
’LC54x-50
’54x-66
UNIT
MIN
MAX
MIN
MAX
td(CLKH-A)
Delay time, address valid from CLKOUT high§
0
5
– 2
3
ns
td(CLKL-A)
Delay time, address valid from CLKOUT low
0
5
0
5
ns
td(CLKL-MSL)
Delay time, MSTRB low from CLKOUT low
0
5
0
5
ns
td(CLKL-D)W
Delay time, data valid from CLKOUT low
0
10
0
6
ns
td(CLKL-MSH)
Delay time, MSTRB high from CLKOUT low
– 2
3
– 2
3
ns
td(CLKH-RWL)
Delay time, R/W low from CLKOUT high
0
5
– 2
3
ns
td(CLKH-RWH)
Delay time, R/W high from CLKOUT high
– 2
3
– 2
3
ns
td(RWL-MSTRBL)
Delay time, MSTRB low after R/W low
H – 2
H + 3
H – 2
H + 3
ns
th(A)W
Hold time, address valid after CLKOUT high§
0
5
0
5
ns
th(D)MSH
Hold time, write data valid after MSTRB high
H–5
H+5
H–5
H+5
ns
tw(SL)MS
Pulse duration, MSTRB low
2H – 5
2H–5
ns
tsu(A)W
Setup time, address valid before MSTRB low
2H – 5
2H–5
ns
tsu(D)MSH
Setup time, write data valid before MSTRB high
2H – 10
2H + 10
2H–10
2H+8§
ns
Address, PS, and DS timings are all included in timings referenced as address.
See Table 15, Table 16, and Table 17 for address bus timing variation with load capacitance.
§ In the case of a memory write preceded by a memory write.
In the case of a memory write preceded by an I/O cycle.
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