ATTINY167-15XD Atmel, ATTINY167-15XD Datasheet - Page 51

• Manufacturer Part Number: ATTINY167-15XD
• Description: MCU AVR 16K FLASH 15MHZ 20-TSSOP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY167-15XD

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 20-TSSOP
• Processor Series: ATTINY1x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Maximum Clock Frequency: 16 MHz
• 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
• Minimum Operating Temperature: - 40 C
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.1.4
6.1.5
7728G–AVR–06/10
External Reset
Brown-out Detection
Figure 6-3.
An External Reset is generated by a low level on the RESET pin. Reset pulses longer than the
minimum pulse width (see
not running. Shorter pulses are not guaranteed to generate a reset. When the applied signal
reaches the Reset Threshold Voltage – V
the MCU after the Time-out period – t
by the RSTDISBL fuse, see
Figure 6-4.
ATtiny87/167 has an On-chip Brown-out Detection (BOD) circuit for monitoring the Vcc level
during operation by comparing it to a fixed trigger level. The trigger level for the BOD can be
selected by the BODLEVEL Fuses
level has a hysteresis to ensure spike free Brown-out Detection. The hysteresis on the detec-
tion level should be interpreted as V
When the BOD is enabled, and Vcc decreases to a value below the trigger level (V
ure
level (V
has expired.
The BOD circuit will only detect a drop in Vcc if the voltage stays below the trigger level for lon-
ger than t
6-5), the Brown-out Reset is immediately activated. When Vcc increases above the trigger
INTERNAL
TIME-OUT
RESET
RESET
BOT
V
CC
BOD
CC
+
in
given in
MCU Start-up, RESET Extended Externally
External Reset During Operation
Figure
Table 22-6 on page
6-5), the delay counter starts the MCU after the Time-out period t
V
CCRR
Table 22-3 on page
Table 21-4 on page
V
POR
(See ”BODLEVEL Fuse Coding” on page
BOT
TOUT
+
= V
RST
247.
– has expired. The External Reset can be disabled
BOT
– on its positive edge, the delay counter starts
246) will generate a reset, even if the clock is
+ V
226.
HYST
V
RST
ATtiny87/ATtiny167
/ 2 and V
t
TOUT
BOT
–
= V
BOT
247.). The trigger
- V
HYST
BOT
/ 2.
–
in
TOUT
Fig-
51