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ATmega64A Datasheet(PDF) 265 Page - ATMEL Corporation

Part # ATmega64A
Description  8-bit Microcontroller with 64K Bytes In-System Programmable Flash
PDF  392 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega64A Datasheet(HTML) 265 Page - ATMEL Corporation

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265
8160C–AVR–07/09
ATmega64A
Figure 25-5. Additional Scan Signal for the Two-wire Interface
25.5.3
Scanning the RESET Pin
The RESET pin accepts 5V active low logic for standard reset operation, and 12V active high
logic for High Voltage Parallel programming. An observe-only cell as shown in Figure 25-6 is
inserted both for the 5V reset signal; RSTT, and the 12V reset signal; RSTHV.
Figure 25-6. Observe-only Cell
Pxn
PUExn
ODxn
IDxn
TWIEN
OCxn
Slew-rate limited
SRC
0
1
DQ
From
Previous
Cell
ClockDR
ShiftDR
To
Next
Cell
FF1



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