ata6603 ATMEL Corporation, ata6603 Datasheet - Page 29
ata6603
Manufacturer Part Number
ata6603
Description
Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
Manufacturer
ATMEL Corporation
Datasheet
1.ATA6603.pdf
(360 pages)
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4.2.3
4.2.4
4.2.4.1
4.2.4.2
4.2.4.3
4921D–AUTO–08/07
Comparison Between ATA6602/ATA6603
Pin Descriptions
VCC
GND
Port B (PB7:0) XTAL1/XTAL2/TOSC1/TOSC2
The ATA6602 and ATA6603 differ only in memory sizes, boot loader support, and interrupt vec-
tor sizes.
devices.
Table 4-1.
ATA6602 and ATA6603 support a real Read-While-Write Self-Programming mechanism. There
is a separate Boot Loader Section, and the SPM instruction can only execute from there.
Digital supply voltage.
Ground.
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Depending on the clock selection fuse settings, PB6 can be used as input to the inverting oscil-
lator amplifier.
Depending on the clock selection fuse settings, PB7 can be used as input to the inverting oscil-
lator amplifier.
If the internal calibrated RC oscillator is used as chip clock source, PB7..6 is used as TOSC2..1
input for the asynchronous Timer/Counter2 if the AS2 bit in ASSR is set.
The various special features of Port B are elaborated in
95
and
ATA6602
ATA6603
Device
“System Clock and Clock Options” on page
Table 4-1
Memory Size Summary
summarizes the different memory and interrupt vector sizes for the two
16 Kbytes
8 Kbytes
Flash
512 Bytes
512 Bytes
EEPROM
49.
“Alternate Functions of Port B” on page
1 Kbyte
1 Kbyte
ATA6602/ATA6603
RAM
2 instruction words/vector
1 instruction word/vector
Interrupt Vector Size
29
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