AT90S8515A-4AI Atmel, AT90S8515A-4AI Datasheet - Page 74
AT90S8515A-4AI
Manufacturer Part Number
AT90S8515A-4AI
Description
IC MCU 8K FLSH 4MHZ LV IT 44TQFP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheets
1.AT90S8515-4AC.pdf
(112 pages)
2.AT90S8515-4AC.pdf
(4 pages)
3.AT90S8515-4AC.pdf
(4 pages)
Specifications of AT90S8515A-4AI
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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Port D Schematics
74
AT90S8515
• INT1 – Port D, Bit 3
INT1: External Interrupt source 1. The PD3 pin can serve as an external interrupt source
to the MCU. See the interrupt description for further details and how to enable the
source.
• INT0 – Port D, Bit 2
INT0: External Interrupt source 0. The PD2 pin can serve as an external interrupt source
to the MCU. See the interrupt description for further details and how to enable the
source.
• TXD – Port D, Bit 1
Transmit Data (data output pin for the UART). When the UART transmitter is enabled,
this pin is configured as an output, regardless of the value of DDRD1.
• RXD – Port D, Bit 0
Receive Data (data input pin for the UART). When the UART receiver is enabled, this
pin is configured as an input, regardless of the value of DDRD0. When the UART forces
this pin to be an input, a logical “1” in PORTD0 will turn on the internal pull-up.
Note that all port pins are synchronized. The synchronization latches are, however, not
shown in the figures.
Figure 53. Port D Schematic Diagram (Pin PD0)
PD0
WP:
WD:
RL:
RP:
RD:
RXD:
RXEN:
MOS
PULL-
UP
WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
UART RECEIVE DATA
UART RECEIVE ENABLE
RL
RP
Q
Q
PORTD0
RESET
RESET
DDD0
WD
WP
RD
C
C
D
D
RXEN
RXD
0841G–09/01
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