ATMEGA64L-8MI View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA64L-8MI

8-bit AVR® Microcontroller with 64K Bytes In-System Programmable Flash

Atmel Corporation 

5. This requirement applies to all ATmega64 Two-wire Serial Interface operation. Other devices connected to the Two-wire

Serial Bus need only obey the general fSCL requirement.

6. The actual low period generated by the ATmega64 Two-wire Serial Interface is (1/fSCL - 2/fCK), thus fCK must be greater than

6 MHz for the low time requirement to be strictly met at fSCL = 100 kHz.

7. The actual low period generated by the ATmega64 Two-wire Serial Interface is (1/fSCL - 2/fCK), thus the low time requirement

will not be strictly met for fSCL > 308 kHz when fCK = 8 MHz. Still, ATmega64 devices connected to the bus may communicate

at full speed (400 kHz) with other ATmega64 devices, as well as any other device with a proper tLOW acceptance margin.

Figure 156. Two-wire Serial Bus Timing

SCL

SDA

tSU;STA

tof

tLOW

tHD;STA

tHIGH

tHD;DAT

tLOW

tSU;DAT

tr

tSU;STO

tBUF

330 ATmega64(L)

2490G–AVR–03/04

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