ATMEGA164PA-MCH Atmel, ATMEGA164PA-MCH Datasheet - Page 299
![MCU AVR 16KB FLASH 20MHZ 44-VQFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA164PA-MCH
Manufacturer Part Number
ATMEGA164PA-MCH
Description
MCU AVR 16KB FLASH 20MHZ 44-VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA164PA-MCH
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN Exposed Pad
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 26-8.
26.6
26.6.1
8272A–AVR–01/10
ATmega164A/ATmega164PA
ATmega324A/ATmega324PA
ATmega644A/ATmega644PA
ATmega1284/ATmega1284P
Parallel Programming Parameters, Pin Mapping, and Commands
Signal Names
Device
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
D a t a m e m o r y , M e m o r y L o c k b i t s , a n d F u s e b i t s i n
the ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P. Pulses are assumed to be at
least 250 ns unless otherwise noted.
In this section, some pins of the ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P
are referenced by signal names describing their functionality during parallel programming, see
Figure 26-1 on page 299
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 26-1. Parallel Programming
Note:
164A/164PA/324A/324PA/644A/644PA/1284/1284P
1. Unused Pins should be left floating.
EEPROM Size
512 bytes
1 Kbytes
2 Kbytes
4 Kbytes
Table 26-13 on page
RDY/BSY
and
Table 26-12 on page
PAGEL
+12 V
BS2
BS1
XA0
XA1
WR
OE
Page Size
Figure 26-9 on page
4 bytes
4 bytes
8 bytes
8 bytes
(1)
PD1
PD2
PD3
PD4
PD5
PD6
PD7
RESET
XTAL1
GND
PA0
PCWORD
EEA[1:0]
EEA[1:0]
EEA[2:0]
EEA[2:0]
301.
300.
300. Pins not described in the following table
PB7 - PB0
AVCC
VCC
No. of Pages
128
256
256
512
+5V
+5V
DATA
EEA[10:2]
EEA[11:3]
PCPAGE
EEA[8:2]
EEA[9:2]
EEAMSB
10
11
8
9
299
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