TMS320VC33 datasheet(10/53 Pages) TI2

10 / 53 page

SM320VC33, SMJ320VC33

SGUS034F – FEBRUARY 2001 – REVISED JUNE 2015

www.ti.com

6.6 Timing Requirements for EXTCLK, All Modes

see Figure 3 and Figure 4

MIN

MAX

UNIT

F = Fmax, x0.5 and x1 modes

1(1)

tr(EXTCLK)

Rise time, EXTCLK

F < Fmax

4(1)

F = Fmax, x0.5 and x1 modes

1(1)

tf(EXTCLK)

Fall time, EXTCLK

F < Fmax

4(1)

x5 mode

21(1)

tw(EXTCLKL)

Pulse duration, EXTCLK low

x1 mode

6(1)

x0.5 mode

4(1)

x5 mode

21(1)

tw(EXTCLKH)

Pulse duration, EXTCLK high

x1 mode

5(1)

x0.5 mode

4(1)

x5 PLL mode

40%(1)

60%(1)

tdc(EXTCLK)

Duty cycle, EXTCLK [tw(EXTCLKH) / tc(H)]

x1 and x0.5 modes, F = max

45%

55%

x1 and x0.5 modes, F = 0 Hz

0%(1)

100%(1)

x5 mode

66.7(1)

200(1)

tc(EXTCLK)

Cycle time, EXTCLK

x1 mode

13.3

x0.5 mode

10(1)

x5 mode

5(1)

15(1)

Fext

Frequency range, 1 / tc(EXTCLK)

x1 mode

MHz

x0.5 mode

0(1)

100(1)

(1)

Not production tested

6.7 Timing Requirements for Memory Read/Write for STRB

see Figure 5 through Figure 7

(1)

MIN

MAX

UNIT

tsu(D-H1L)R

Setup time, data before H1 low (read)

5(2)

th(H1L-D)R

Hold time, data after H1 low (read)

–1(2)

tsu(RDY-H1H)

Setup time, RDY before H1 high

th(H1H-RDY)

Hold time, RDY after H1 high

–1(2)

td(A-RDY)

Delay time, address valid to RDY

P – 6(2)(3)

tv(A-D)

Valid time, data valid after address

0 wait state, CL = 30 pF

6(2)

PAGEx, or STRB valid

1 wait state

tc(H) + 6(2)

(1)

These timings assume a similar loading of 30 pF on all pins.

(2)

Not production tested

(3)

P = tc(H) / 2 (when duty cycle equals 50%).

6.8 Timing Requirements for XF0 and XF1 when Executing LDFI or LDII

see Figure 8

MIN

MAX

UNIT

tsu(XF1-H1L)

Setup time, XF1 before H1 low

4(1)

th(H1L-XF1)

Hold time, XF1 after H1 low

0(1)

(1)

Not production tested

Submit Documentation Feedback

Product Folder Links: SM320VC33 SMJ320VC33

TMS320VC33 Datasheet(PDF) 10 Page - Texas Instruments

TMS320VC33 Datasheet(HTML) 10 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

Datasheet Download

Link URL