参数资料
型号: ATTINY84A-CCU
厂商: Atmel
文件页数: 100/135页
文件大小: 0K
描述: IC MCU 8BIT 8K FLASH 15UFBGA
标准包装: 490
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 20MHz
连通性: USI
外围设备: 欠压检测/复位,POR,PWM,温度传感器,WDT
输入/输出数: 12
程序存储器容量: 8KB(4K x 16)
程序存储器类型: 闪存
EEPROM 大小: 512 x 8
RAM 容量: 512 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 15-UFBGA
包装: 托盘
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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