ATMEGA16-16PU Atmel, ATMEGA16-16PU Datasheet - Page 251
![IC AVR MCU 16K 16MHZ 5V 40DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA16-16PU
Manufacturer Part Number
ATMEGA16-16PU
Description
IC AVR MCU 16K 16MHZ 5V 40DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATMEGA16L-8MI.pdf
(26 pages)
2.ATMEGA16L-8MI.pdf
(357 pages)
3.ATMEGA16-16PU.pdf
(358 pages)
4.ATMEGA16-16PU.pdf
(351 pages)
Specifications of ATMEGA16-16PU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Package
40PDIP
Device Core
AVR
Family Name
ATmega
Maximum Speed
16 MHz
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
TWI/SPI/USART
On-chip Adc
8-chx10-bit
Number Of Timers
3
Processor Series
ATMEGA16x
Core
AVR8
Data Ram Size
1 KB
Maximum Clock Frequency
16 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
A/d Inputs
8-Channel, 10-Bit
Cpu Speed
16 MIPS
Eeprom Memory
512 Bytes
Input Output
32
Interface
JTAG/SPI/UART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin PDIP
Programmable Memory
16K Bytes
Timers
2-8-bit, 1-16-bit
Voltage, Range
4.5-5.5 V
Controller Family/series
AVR MEGA
No. Of I/o's
32
Eeprom Memory Size
512Byte
Ram Memory Size
1KB
Rohs Compliant
Yes
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA16-16PU
Manufacturer:
Atmel
Quantity:
140
- ATMEGA16L-8MI PDF datasheet
- ATMEGA16L-8MI PDF datasheet #2
- ATMEGA16-16PU PDF datasheet #3
- ATMEGA16-16PU PDF datasheet #4
- Current page: 251 of 351
- Download datasheet (3Mb)
Addressing the Flash
during Self-
Programming
2466J–AVR–10/04
• Bit 2 – PGWRT: Page Write
If this bit is written to one at the same time as SPMEN, the next SPM instruction within
four clock cycles executes Page Write, with the data stored in the temporary buffer. The
page address is taken from the high part of the Z-pointer. The data in R1 and R0 are
ignored. The PGWRT bit will auto-clear upon completion of a page write, or if no SPM
instruction is executed within four clock cycles. The CPU is halted during the entire page
write operation if the NRWW section is addressed.
• Bit 1 – PGERS: Page Erase
If this bit is written to one at the same time as SPMEN, the next SPM instruction within
four clock cycles executes Page Erase. The page address is taken from the high part of
the Z-pointer. The data in R1 and R0 are ignored. The PGERS bit will auto-clear upon
completion of a page erase, or if no SPM instruction is executed within four clock cycles.
The CPU is halted during the entire page write operation if the NRWW section is
addressed.
• Bit 0 – SPMEN: Store Program Memory Enable
This bit enables the SPM instruction for the next four clock cycles. If written to one
together with either RWWSRE, BLBSET, PGWRT’ or PGERS, the following SPM
instruction will have a special meaning, see description above. If only SPMEN is written,
the following SPM instruction will store the value in R1:R0 in the temporary page buffer
addressed by the Z-pointer. The LSB of the Z-pointer is ignored. The SPMEN bit will
auto-clear upon completion of an SPM instruction, or if no SPM instruction is executed
within four clock cycles. During page erase and page write, the SPMEN bit remains high
until the operation is completed.
Writing any other combination than “10001”, “01001”, “00101”, “00011” or “00001” in the
lower five bits will have no effect.
The Z-pointer is used to address the SPM commands.
Since the Flash is organized in pages (see Table 107 on page 262), the Program
Counter can be treated as having two different sections. One section, consisting of the
least significant bits, is addressing the words within a page, while the most significant
bits are addressing the pages. This is shown in Figure 126. Note that the Page Erase
and Page Write operations are addressed independently. Therefore it is of major impor-
tance that the Boot Loader software addresses the same page in both the Page Erase
and Page Write operation. Once a programming operation is initiated, the address is
latched and the Z-pointer can be used for other operations.
The only SPM operation that does not use the Z-pointer is Setting the Boot Loader Lock
bits. The content of the Z-pointer is ignored and will have no effect on the operation. The
LPM instruction does also use the Z pointer to store the address. Since this instruction
addresses the Flash byte by byte, also the LSB (bit Z0) of the Z-pointer is used.
Bit
ZH (R31)
ZL (R30)
Z15
15
Z7
7
Z14
14
Z6
6
Z13
Z5
13
5
Z12
12
Z4
4
Z11
11
Z3
3
Z10
10
Z2
2
ATmega16(L)
Z9
Z1
9
1
Z8
Z0
8
0
251
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