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ATtiny167-ESSZ датащи(PDF) 246 Page - ATMEL Corporation

номер детали ATtiny167-ESSZ
подробное описание детали  8-bit Microcontroller with 8K/16K Bytes In-System Programmable Flash and LIN Controller
PDF  282 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATtiny167-ESSZ датащи(HTML) 246 Page - ATMEL Corporation

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246
7728D–AVR–07/09
ATtiny87/ATtiny167
22.4.3
External Clock Drive
22.5
RESET Characteristics
Note:
1. Before rising, the supply has to be between VPORMIN and VPORMAX to ensure a Reset.
Table 22-2.
External Clock Drive
Symbol
Parameter
Vcc = 2.7 - 5.5V
Vcc = 4.5 - 5.5V
Units
Min.
Max.
Min.
Max.
1/t
CLCL
Oscillator Frequency
0
8
0
16
MHz
tCLCL
Clock Period
125
62.5
ns
t
CHCX
High Time
50
25
ns
t
CLCX
Low Time
50
25
ns
tCLCH
Rise Time
1.6
0.5
ms
t
CHCL
Fall Time
1.6
0.5
ms
Δt
CLCL
Change in period from one clock
cycle to the next
22
%
Table 22-3.
External Reset Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
RST
RESET Pin Threshold
Voltage
V
CC = 5V
0.1 Vcc
0.9 Vcc
V
tRST
Minimum pulse width on
RESET Pin
VCC = 5V
2.5
µs
VBG
Bandgap reference voltage
VCC = 2.7V,
T
A =25°C
1.0
1.1
1.2
V
t
BG
Bandgap reference start-up
time
VCC = 2.7V,
TA =25°C
40
70
µs
IBG
Bandgap reference current
consumption
V
CC = 2.7V,
TA =25°C
15
µA
Table 22-4.
Power On Reset Characteristics
Symbol
Parameter
Min
Typ
Max
Units
VPOT
Power-on Reset Threshold Voltage (rising)
1.0
1.4
V
Power-on Reset Threshold Voltage (falling)(1)
0.9
1.3
V
VPORMAX
VCC Max. start voltage to ensure internal
Power-on Reset signal
0.4
V
VPORMIN
VCC Min. start voltage to ensure internal
Power-on Reset signal
- 0.1
V
VCCRR
VCC Rise Rate to ensure Power-on Reset
0.01
V/ms
VRST
RESET Pin Threshold Voltage
0.1 Vcc
0.9
Vcc
V



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