ATTINY88-AU Atmel, ATTINY88-AU Datasheet - Page 20
![MCU AVR 8K ISP FLASH 1.8V 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
ATTINY88-AU
Manufacturer Part Number
ATTINY88-AU
Description
MCU AVR 8K ISP FLASH 1.8V 32TQFP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY88-AU
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
28
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 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
32-TQFP, 32-VQFP
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
2-Wire/I2S/SPI
Maximum Clock Frequency
12 MHz
Number Of Programmable I/os
28
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATQT600, ATAVRTS2080B
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY88-AU
Manufacturer:
ATMEL
Quantity:
5 000
Company:
Part Number:
ATTINY88-AU
Manufacturer:
ATMEL
Quantity:
3 000
Part Number:
ATTINY88-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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5.3
5.3.1
20
Data Memory (EEPROM)
ATtiny48/88
Programming Methods
Figure 5-2.
ATtiny48/88 contains 64 bytes of non-volatile data memory. This EEPROM is organized as a
separate data space, in which single bytes can be read and written. All access registers are
located in the I/O space.
The EEPROM memory layout is summarised in
Table 5-3.
The internal 8MHz oscillator is used to time EEPROM operations. The frequency of the oscillator
must be within the requirements described in
page
When powered by heavily filtered supplies, the supply voltage, V
on power-up and power-down. Slow rise and fall times may put the device in a state where it is
running at supply voltages lower than specified. To avoid problems in situations like this, see
“Preventing EEPROM Corruption” on page
The EEPROM has a minimum endurance of 100,000 write/erase cycles.
There are two methods for EEPROM programming:
Device
ATtiny48/88
• Atomic byte programming. This is the simple mode of programming, where target locations
• Split byte programming. It is possible to split the erase and write cycle in two different
are erased and written in a single operation. In this mode of operation the target is
guaranteed to always be erased before writing but programmin times are longer.
operations. This is useful when short access times are required, for example when supply
voltage is falling. In order to take advantage of this method target locations must be erased
34.
Address
clk
On-chip Data SRAM Access Cycles
Size of Non-Volatile Data Memory (EEPROM).
Data
Data
WR
CPU
RD
Compute Address
EEPROM Size
64B
T1
Memory Access Instruction
22.
“OSCCAL – Oscillator Calibration Register” on
Table
Address valid
T2
5-3, below.
Address Range
0x00 – 0x3F
CC
Next Instruction
, is likely to rise or fall slowly
T3
8008G–AVR–04/11
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