參數(shù)資料
型號(hào)： SM320C6201BGLPW20
廠商： TEXAS INSTRUMENTS INC
元件分類： 數(shù)字信號(hào)處理
英文描述： 32-BIT, 200 MHz, OTHER DSP, CBGA429
封裝： CERAMIC, MO-156, BGA-429
文件頁數(shù)： 25/66頁
文件大小： 971K
代理商： SM320C6201BGLPW20
SM320C6201B, SMJ320C6201B
DIGITAL SIGNAL PROCESSOR
SGUS031B – APRIL 2000 – REVISED AUGUST 2001
31
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
INPUT AND OUTPUT CLOCKS
timing requirements for CLKIN (see Figure 9)
C6201B-15
C6201B-20
NO.
CLKMODE
= x4
CLKMODE
= x1
CLKMODE
= x4
CLKMODE
= x1
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
1
tc(CLKIN)
Cycle time, CLKIN
26.7
6.67
20
5
ns
2
tw(CLKINH) Pulse duration, CLKIN high
*9.8
*2.7
*8
*2.35
ns
3
tw(CLKINL)
Pulse duration, CLKIN low
*9.8
*2.7
*8
*2.35
ns
4
tt(CLKIN)
Transition time, CLKIN
*5
*0.6
*5
*0.6
ns
*Not production tested.
CLKIN
1
2
3
4
Figure 9. CLKIN Timings
switching characteristics for CLKOUT1 (see Figure 10)
C6201B
NO.
PARAMETER
CLKMODE = x4
CLKMODE = x1
UNIT
NO.
PARAMETER
MIN
MAX
MIN
MAX
UNIT
1
tc(CKO1)
Cycle time, CLKOUT1
*P – 0.7
*P + 0.7
*P – 0.7
*P + 0.7
ns
2
tw(CKO1H)
Pulse duration, CLKOUT1 high
*(P/2) – 0.5
*(P/2 ) + 0.5
*PH – 0.5
*PH + 0.5
ns
3
tw(CKO1L)
Pulse duration, CLKOUT1 low
*(P/2) – 0.5
*(P/2 ) + 0.5
*PL – 0.5
*PL + 0.5
ns
4
tt(CKO1)
Transition time, CLKOUT1
*0.6
ns
PH is the high period of CLKIN in ns and PL is the low period of CLKIN in ns.
P = 1/CPU clock frequency in nanoseconds (ns).
*Not production tested.
CLKOUT1
1
3
4
2
Figure 10. CLKOUT1 Timings
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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