(VCC = 4.0 V to 5.5 V, V<" />
參數(shù)資料
型號: ATTINY84A-CCU
廠商: Atmel
文件頁數(shù): 100/135頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 8K FLASH 15UFBGA
標準包裝: 490
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: USI
外圍設備: 欠壓檢測/復位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 12
程序存儲器容量: 8KB(4K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉換器: A/D 8x10b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 15-UFBGA
包裝: 托盤
MB91470/480 Series
66
5.
AC Characteristics
(1) Clock Timing
(VCC
= 4.0 V to 5.5 V, VSS = AVSS10 = AVSS12 = 0.0 V)
*1 : The values assume a gear cycle of 1/16.
*2 : When the PLL is used, the PLL multiplication rate varies depending on the frequency of the clock input
to the X0 and X1 pins. Set the PLL multiplication rate so that the PLL output clock frequency is in the
range between 40 MHz and 80 MHz.
Conditions for measuring the clock timing ratings
Parameter
Sym-
bol
Pin
Name
Condition
Value
Unit
Remarks
Min
Typ
Max
Clock frequency
fC
X0
X1
10*2
20
MHz
When using the
PLL within the
self-oscillating
range, set the
multiplier so that
the internal clock
does not exceed
the internal oper-
ating clock fre-
quency.
Clock cycle time
tC
X0
X1
100
50*2
ns
Internal operating
clock frequency
fCPB
When 20 MHz is
input as the X0
clock frequency and
the oscillator circuit
PLL system is set to
× 4 multiplication
5*1
80
MHz CPU
fCPP
5*1
40
MHz Peripheral
fCPT
5*1
40
MHz External bus
Internal operating
clock cycle time
tCPB
12.5
200
ns
CPU
tCPP
25
200
ns
Peripheral
tCPT
25
200
ns
External bus
PLL Multiplication Rate
1
2
3
4
5
6
7
8
PLL output clock frequency
when X0
= 10 MHz
(Setting not allowed)
40 MHz
50 MHz
60 MHz
70 MHz
80 MHz
PLL output clock frequency
when X0
= 20 MHz
(Setting
not
allowed)
40 MHz
60 MHz
80 MHz
(Setting not allowed)
0.8 VCC
tC
C
= 50 pF
Output pin
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