ATMEGA32L-8MJ Atmel, ATMEGA32L-8MJ Datasheet - Page 259
![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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Parallel
Programming
Parameters, Pin
Mapping, and
Commands
Signal Names
2503Q–AVR–02/11
Table 107. No. of Words in a Page and no. of Pages in the EEPROM
This section describes how to parallel program and verify Flash Program memory, EEPROM
Data memory, Memory Lock bits, and Fuse bits in the ATmega32. Pulses are assumed to be at
least 250 ns unless otherwise noted.
In this section, some pins of the ATmega32 are referenced by signal names describing their
functionality during parallel programming, see
the following table are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a positive pulse.
The bit coding is shown in
When pulsing WR or OE, the command loaded determines the action executed. The different
Commands are shown in
Figure 127. Parallel Programming
Table 108. Pin Name Mapping
Signal Name in
Programming Mode
EEPROM Size
1024 bytes
RDY/BSY
BS1
XA0
WR
OE
Page Size
4 bytes
Name
PD1
PD2
PD3
PD4
PD5
Pin
Table
Table
RDY/BSY
PAGEL
+12V
BS1
XA0
XA1
BS2
WR
111.
OE
110.
PCWORD
I/O
EEA[1:0]
O
I
I
I
I
PD1
PD2
PD3
PD4
PD5
PD6
PD7
RESET
XTAL1
GND
Function
0: Device is busy programming, 1: Device is ready
for new command
Output Enable (Active low)
Write Pulse (Active low)
Byte Select 1 (“0” selects low byte, “1” selects high
byte)
XTAL Action Bit 0
PA0
Figure 127
No. of Pages
PB7 - PB0
256
AVCC
VCC
and
+5V
+5V
Table
PCPAGE
EEA[9:2]
DATA
108. Pins not described in
ATmega32(L)
EEAMSB
9
259
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