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Serial programming characteristics, Figure 85, Table 95 – Rainbow Electronics ATmega8515L User Manual

Page 193: Atmega8515(l)

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193

ATmega8515(L)

2512A–AVR–04/02

Serial Programming
Characteristics

Figure 85. Serial Programming Timing

Note:

1. 2 t

CLCL

for f

ck

< 12 MHz, 3 t

CLCL

for f

ck

≥ 12 MHz

Table 95. Serial Programming Characteristics, T

A

= -40

°C to 85°C, V

CC

= 2.7V - 5.5V

(Unless Otherwise Noted)

Symbol

Parameter

Min

Typ

Max

Units

1/t

CLCL

Oscillator Frequency (ATmega8515L)

0

8

MHz

t

CLCL

Oscillator Period (ATmega8515L)

125

ns

1/t

CLCL

Oscillator Frequency (ATmega8515, V

CC

= 4.5

- 5.5V)

0

16

MHz

t

CLCL

Oscillator Period (ATmega8515, V

CC

= 4.5 -

5.5V)

67

ns

t

SHSL

SCK Pulse Width High

2 t

CLCL

(1)

ns

t

SLSH

SCK Pulse Width Low

2 t

CLCL

(1)

ns

t

OVSH

MOSI Setup to SCK High

t

CLCL

ns

t

SHOX

MOSI Hold after SCK High

2 t

CLCL

ns

t

SLIV

SCK Low to MISO Valid

20

ns

MOSI

MISO

SCK

t

OVSH

t

SHSL

t

SLSH

t

SHOX

t

SLIV