參數(shù)資料
型號: TMS320F240PQL
英文描述: 16-Bit Microcontroller
中文描述: 16位微控制器
文件頁數(shù): 73/105頁
文件大?。?/td> 1481K
代理商: TMS320F240PQL
TMS320C240, TMS320F240
DSP CONTROLLERS
SPRS042D – OCTOBER 1996 – REVISED NOVEMBER 1998
73
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
MEMORY AND PERIPHERAL INTERFACE TIMINGS (CONTINUED)
memory and parallel I/O interface writetimings
switching characteristics over recommended operating conditions for a memory write
@ 5 V [H = 0.5t
c(CO)
]
(see Figure 28)
PARAMETER
MIN
MAX
UNIT
td(CO-A)W
td(CO-D)
Delay time, CLKOUT/IOPC1 high to address valid
17
ns
Delay time, CLKOUT/IOPC1 low to data bus driven
15
ns
th(WH-A)
Hold time, address valid after WE high
H – 8
H – 10
ns
tw(WH)
tw(WL)
td(CO-WL)
td(CO-WH)
tsu(D-WH)
thz(WH-D)
td(CO-SL)W
td(CO-SH)W
td(CO-ACTL)W
td(CO-ACTH)W
td(CO-RWL)
td(CO-RWH)
All timings with respect to CLKOUT/IOPC1 assume CLKSRC[1:0] bits are set to select CPUCLK for output.
MIN value for ’C240 only
Pulse duration, WE high
2H – 11
ns
Pulse duration, WE low
2H – 11
Delay time, CLKOUT/IOPC1 low to WE low
9
ns
Delay time, CLKOUT/IOPC1 low to WE high
9
ns
Setup time, write data valid before WE high
2H – 8
ns
High-impedance time, WE high to data bus Hi-Z
0
5
ns
Delay time, CLKOUT/IOPC1 low to STRB low
10
ns
Delay time, CLKOUT/IOPC1 low to STRB high
6
ns
Delay time, CLKOUT/IOPC1 high to PS, DS, IS, and BR low
10
ns
Delay time, CLKOUT/IOPC1 high to PS, DS, IS, and BR high
10
ns
Delay time, CLKOUT/IOPC1 high to R/W low
10
ns
Delay time, CLKOUT/IOPC1 high to R/W high
10
ns
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