LM9830 datasheet(9/45 Pages) NSC

부품명	LM9830

상세설명	LM9830 36-Bit Color Document Scanner

PDF	45 Pages

Scroll/Zoom	100%

제조업체	NSC [National Semiconductor (TI)]

홈페이지	http://www.national.com

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Figure 5: µP Mode Address Latch

CS (INIT)

RD (AUTOFEED)

Address

D0 - D7

WR (STROBE)

ALE (SELECTIN)

tALE SETUP

tALE

tALE HOLD

Data

Figure 6: µP Mode Write

CS (INIT)

RD (AUTOFEED)

D0 - D7

WR (STROBE)

ALE (SELECTIN)

tWR SETUP

tWR HOLD

tWR

NOTE: CS and WR are ORed together.

tWR SETUP and tWR HOLD refer to the first rising edge

of CS or WR, whichever goes high first.

Data

Figure 7: µP Mode Read

CS (INIT)

RD (AUTOFEED)

D0 - D7

WR (STROBE)

ALE (SELECTIN)

tRD ACCESS

tRD TRI-STATE

NOTE: CS and RD are ORed together.

tRD ACCESS begins when both CS and WR go low.

tRD TRI-STATE begins when either CS or WR go high

Figure 8: SRAM Write

Address

Data

tWR DATA HOLD

A0-A17

DB0-DB7

tWR ADDR HOLD

tWR DATA SETUP

tWR

tWR R ADDR SETUP

tWR F ADDR SETUP

Figure 9: SRAM Read

Address

Data

A0-A17

DB0-DB7

Address

Data

Note: RD will stay low during consecutive read operations.

0.5MCLK

tRD SETUP

LM9830 데이터시트(PDF) 9 Page - National Semiconductor (TI)

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