PCA84C441 datasheet(16/40 Pages) PHILIPS

tên linh kiện	PCA84C441

Giải thích chi tiết về linh kiện	8-bit microcontrollers with OSD and VST

PDF	40 Pages

Scroll/Zoom	100%

nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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16 / 40 page

1996 Nov 29

Philips Semiconductors

Product speciﬁcation

8-bit microcontrollers with OSD and VST

84C44X; 84C64X; 84C84X

11 INPUT/OUTPUT (I/O)

Each parallel I/O port line may be individually configured

using one of three possible I/O mask options.

The three I/O mask options are specified below:

Option 1 Standard port with switched pull-up current

source, Fig.15.

Option 2 Open drain, Fig.16.

Option 3 Push-pull (output only), Fig.17.

Table 5 specifies the possible port option list. When these

devices are used for emulation purposes, in order to match

the piggy back device provided it is recommended that the

port options listed in Table 6 are used.

handbook, full pagewidth

MLA696

TR3

I/O PORT

LINE

SLAVE

MASTER

WRITE PULSE

OUTL/ORL/ANL/MOV

DATA BUS

ORL/ANL/MOV

IN/MOV

TR1

VSS

TR2

VDD

constant

current

source

100

µA typ.

Fig.15 Standard output with switched pull-up current source (Option 1).

handbook, full pagewidth

MLA697

I/O PORT

LINE

SLAVE

MASTER

WRITE PULSE

OUTL/ORL/ANL

DATA BUS

ORL/ANL

TR1

VSS

VDD

Fig.16 Open drain type I/O (Option 2).

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