ATMEGA32L-8MJ Atmel, ATMEGA32L-8MJ Datasheet - Page 230
![IC MCU AVR 32K 5V 8MHZ 44-QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA32L-8MJ
Manufacturer Part Number
ATMEGA32L-8MJ
Description
IC MCU AVR 32K 5V 8MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32L-8MJ
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Boundary-scan and
the Two-wire Interface
2503Q–AVR–02/11
Figure 117. General Port Pin Schematic Diagram
Note:
The 2 Two-wire Interface pins SCL and SDA have one additional control signal in the scan-
chain; Two-wire Interface Enable – TWIEN. As shown in
a tri-state buffer with slew-rate control in parallel with the ordinary digital port pins. A general
scan cell as shown in
Notes:
1. See Boundary-scan descriptin for details.
1. A separate scan chain for the 50 ns spike filter on the input is not provided. The ordinary scan
2. Make sure the OC and TWIEN signals are not asserted simultaneously, as this will lead to
Pxn
support for digital port pins suffice for connectivity tests. The only reason for having TWIEN in
the scan path, is to be able to disconnect the slew-rate control buffer when doing boundary-
scan.
drive contention.
PUD:
PUExn:
OCxn:
ODxn:
IDxn:
SLEEP:
Figure 122
IDxn
PULLUP DISABLE
PULLUP ENABLE for pin Pxn
OUTPUT CONTROL for pin Pxn
OUTPUT DATA to pin Pxn
INPUT DATA from pin Pxn
SLEEP CONTROL
PUExn
is attached to the TWIEN signal.
SLEEP
OCxn
(1)
SYNCHRONIZER
ODxn
WDx:
RDx:
WPx:
RRx:
RPx:
CLK
D
L
Q
Q
I/O
Figure
:
D
WRITE DDRx
READ DDRx
WRITE PORTx
READ PORTx REGISTER
READ PORTx PIN
I/O CLOCK
PINxn
Q
Q
118, the TWIEN signal enables
RESET
RESET
Q
Q
Q
Q
PORTxn
DDxn
CLR
CLR
ATmega32(L)
D
D
CLK
PUD
WDx
RDx
WPx
RRx
RPx
I/O
230
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