ATtiny88 Automotive Atmel Corporation, ATtiny88 Automotive Datasheet - Page 63
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ATtiny88 Automotive
Manufacturer Part Number
ATtiny88 Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny88 Automotive
Flash (kbytes)
8 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
28
Ext Interrupts
28
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
64
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
2
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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7701E–AVR–02/11
Table 12-2.
The following subsections shortly describe the alternate functions for each port, and relate the
overriding signals to the alternate function. Refer to the alternate function description for fur-
ther details.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Generic Description of Overriding Signals for Alternate Functions
Full Name
Pull-up Override
Enable
Pull-up Override
Value
Data Direction
Override Enable
Data Direction
Override Value
Port Value
Override Enable
Port Value
Override Value
Port Toggle
Override Enable
Digital Input
Enable Override
Enable
Digital Input
Enable Override
Value
Digital Input
Analog
Input/Output
Atmel ATtiny24/44/84 [Preliminary]
Description
If this signal is set, the pull-up enable is controlled by the
PUOV signal. If this signal is cleared, the pull-up is enabled
when {DDxn, PORTxn, PUD} = 0b010.
If PUOE is set, the pull-up is enabled/disabled when PUOV is
set/cleared, regardless of the setting of the DDxn, PORTxn,
and PUD Register bits.
If this signal is set, the Output Driver Enable is controlled by
the DDOV signal. If this signal is cleared, the Output driver is
enabled by the DDxn Register bit.
If DDOE is set, the Output Driver is enabled/disabled when
DDOV is set/cleared, regardless of the setting of the DDxn
Register bit.
If this signal is set and the Output Driver is enabled, the port
value is controlled by the PVOV signal. If PVOE is cleared,
and the Output Driver is enabled, the port Value is controlled
by the PORTxn Register bit.
If PVOE is set, the port value is set to PVOV, regardless of the
setting of the PORTxn Register bit.
If PTOE is set, the PORTxn Register bit is inverted.
If this bit is set, the Digital Input Enable is controlled by the
DIEOV signal. If this signal is cleared, the Digital Input Enable
is determined by MCU state (Normal mode, sleep mode).
If DIEOE is set, the Digital Input is enabled/disabled when
DIEOV is set/cleared, regardless of the MCU state (Normal
mode, sleep mode).
This is the Digital Input to alternate functions. In the figure, the
signal is connected to the output of the schmitt-trigger but
before the synchronizer. Unless the Digital Input is used as a
clock source, the module with the alternate function will use its
own synchronizer.
This is the Analog Input/Output to/from alternate functions.
The signal is connected directly to the pad, and can be used
bi-directionally.
63
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