TCM4300IPZ datasheet(32/69 Pages) TI1

32 / 69 page

3–10

3.9

TCM4300 to Microcontroller Interface Timing Requirements (Motorola 8-Bit

Write Cycle) (see Figure 3–9 and Note 5)

PARAMETER

ALTERNATE

SYMBOL

MIN

MAX

UNIT

tsu(R/W)

Setup time, read/write MCRW stable before rising edge of

strobe MCDS

TRW(SU)

th(R/W)

Hold time, read/write MCRW stable after falling edge of

strobe MCDS

TRW(HO)

tsu(WA)

Setup time, write address MCA stable before rising edge of

strobe MCDS

TWA(SU)

th(WA)

Hold time, write address MCA stable after falling edge of

strobe MCDS

TWA(HO)

tsu(W)

Setup time, write data stable MCD before falling edge of

strobe MCDS

TWD(SU)

th(W)

Hold time, write data stable MCD after falling edge of

strobe MCDS

TWD(HO)

tw(WSTB) Pulse duration, write strobe pulse width high on MCDS

TWR(STB)

th(CS)

Hold time, chip select MCCSH and MCCSL stable before

rising edge of strobe MCDS

TCS(HO)

tsu(CS)

Setup time, chip select MCCSH and MCCSL stable before

falling edge of strobe MCDS

TCS(SU)

NOTE 5: Timings are based upon Motorola 68HC11D3 (3 MHz) and Motorola 68HC11G5 (2.1 MHz).

90%

10%

MCRW

10%

MCDS

(see Note A)

tsu(R / W)

th(R / W)

tsu(WA)

10%

90%

tw(WSTB)

th(WA)

tsu(W)

th(W)

tsu(CS)

th(CS)

90%

10%

MCCSH

MCCSL

NOTE A: Chip selection is defined as both MCCS and MCDS active.

MCA0–MCA4

MCD0–MCD7

Figure 3–9. Microcontroller Interface Timing Requirements

(Motorola 8-Bit Write Cycle, MTS [1:0] = 01)

TCM4300IPZ Datasheet(PDF) 32 Page - Texas Instruments

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