AT83C5111 datasheet(81/86 Pages) ATMEL

Part #	AT83C5111

Description	Low Pin Count 8-bit Microcontroller with A/D Converter

PDF	86 Pages

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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81 / 86 page

AT8xC5111

4190A–8051–11/02

Figure 10. Clock Waveforms

Figure 39 indicates when signals are clocked internally. The time it takes the signals to propagate to the pins, however,

ranges from 25 to 125 ns. This propagation delay is dependent on variables such as temperature and pin loading. Propagat

ion also varies from output to output and component. Typically though (T

A = 25°C fully loaded) RD and WR propagation

delays are approximat ely 50ns. The other signals are typically 85 ns. Propagation delays are incorporated in the AC

specifications.

CLOCK

XTAL2

INTERNAL

STATE4

STATE5

STATE6

STATE1

STATE2

STATE3

STATE4

STATE5

SERIAL PORT SHIFT CLOCK

PORT OPERATION

TXD (MODE 0)

RXD SAMPLED

P1, P3, P4 PINS

SAMPLED

P1, P3, P4 PINS

SAMPLED

MOV DEST PORT (P1, P3, P4)

(INCLUDES INT0, INT1, TO, T1)

OLD DATA

NEW DATA

P1P2

AT83C5111 Datasheet(PDF) 81 Page - ATMEL Corporation