AT90S8515A-4JC Atmel, AT90S8515A-4JC Datasheet - Page 72
![IC MCU 8K FLSH 4MHZ LV 44PLCC](/photos/6/70/67043/453-44-plcc_sml.jpg)
AT90S8515A-4JC
Manufacturer Part Number
AT90S8515A-4JC
Description
IC MCU 8K FLSH 4MHZ LV 44PLCC
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-4JC
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
0°C ~ 70°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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Port C Schematics
Port D
72
AT90S8515
Note that all port pins are synchronized. The synchronization latch is, however, not
shown in the figure.
Figure 52. Port C Schematic Diagram (Pins PC0 - PC7)
Port D is an 8-bit bi-directional I/O port with internal pull-up resistors.
Three I/O memory address locations are allocated for the Port D, one each for the Data
Register – PORTD, $12($32), Data Direction Register – DDRD, $11($31) and the Port D
Input Pins – PIND, $10($30). The Port D Input Pins address is read-only, while the Data
Register and the Data Direction Register are read/write.
The Port D output buffers can sink 20 mA. As inputs, Port D pins that are externally
pulled low will source current if the pull-up resistors are activated.
Some Port D pins have alternate functions as shown in Table 23.
Table 23. Port D Pin Alternate Functions
When the pins are used for the alternate function, the DDRD and PORTD registers have
to be set according to the alternate function description.
Port Pin
PD0
PD1
PD2
PD3
PD5
PD6
PD7
Alternate Function
RXD (UART Input Line)
TXD (UART Output Line)
INT0 (External interrupt 0 Input)
INT1 (External interrupt 1 Input)
OC1A (Timer/Counter1 Output CompareA Match Output)
WR
RD
(Read Strobe to External Memory)
(Write Strobe to External Memory)
0841G–09/01
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