ATmega169P datasheet(332/393 Pages) ATMEL

номер детали	ATmega169P

подробное описание детали	8-bit Microcontroller with 16K Bytes In-System Programmable Flash

PDF	393 Pages

Scroll/Zoom	100%

производитель	ATMEL [ATMEL Corporation]

домашняя страница	http://www.atmel.com

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332

8018N–AVR–08/09

ATmega169P

Note:

1. VBOT may be below nominal minimum operating voltage for some devices. For devices where

this is the case, the device is tested down to VCC = VBOT during the production test. This guar-

antees that a Brown-Out Reset will occur before V

CC drops to a voltage where correct

operation of the microcontroller is no longer guaranteed. The test is performed using

BODLEVEL = 110 for ATmega169V.

28.6

SPI Timing Characteristics

See Figure 28-4 and Figure 28-5 for details.

Table 28-5.

BODLEVEL Fuse Coding

(1)

BODLEVEL 2..0 Fuses

Min V

BOT

Typ V

BOT

Max V

BOT

Units

111

BOD Disabled

110

1.7

1.8

2.0

101

2.5

2.7

2.9

100

4.1

4.3

4.5

011

Reserved

010

001

000

Table 28-6.

SPI Timing Parameters

Description

Mode

Min

Typ

Max

SCK period

Master

See Table 18-5

SCK high/low

Master

50% duty cycle

Rise/Fall time

Master

3.6

Setup

Master

5Hold

Master

Out to SCK

Master

0.5 • tsck

SCK to out

Master

SCK to out high

Master

9SS low to out

Slave

SCK period

Slave

4 • tck

SCK high/low(1)

Slave

2 • tck

Rise/Fall time

Slave

1.6

µs

Setup

Slave

Hold

Slave

tck

SCK to out

Slave

SCK to SS high

Slave

SS high to tri-state

Slave

SS low to SCK

Slave

20 • tck

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