ATmega8515 Datasheet, Pinout, Minimal Circuit, Maximum Frequency Calculator

The ATmega8515 is a replacement for the AT90S4414/8515 MCU. It has an external memory bus that allows the addition of upto 64k SRAM or memory mapped I/O ports. It is not 100% compatible, but there is a compatibility fuse that makes it so. Use the ATmega8515 when you need access to external resources. The ATmega162 is a more capable version, with additional I/O, but the additional I/O can't be used if external memory is used.

ATmega8515 Features
FeatureValue
Flash 8k
EEPROM 0.5k
RAM 0.5k
I/O Pins 35
Interrupts 17
USARTS 1
USI 0
SPI 1
TWI 1
ADC Channels 0
RT Counter (w/osc)0
Timers (8-bit) 1
Timers (16-bit) 1
PWM (8-bit) 2
PWM (16-bit) 1
Price (1's) $3.96
CharacteristicValue
Power Consumption (approximate) 1.5mA/MHz@5V
Maximum I/O Current (per pin) 40mA
Maximum I/O Current (all ports) 100mA(low)/150mA(high)
Maximum I/O Current (total) 200mA (PDIP)
Maximum I/O Current (total)400mA (QFP/MLF)

ATmega8515 Datasheet

Link to ATmega8515 datasheet from Atmel's website.

ATmega8515 Pinout

ATmega8515-PU pinout ATmega8515-AU pinout

ATmega8515 "Minimal" Circuit Diagram

The circuit below shows a typical external memory interface for the ATmega8515.

ATmega8515 minimal schematic diagram