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参数资料
型号： MAXQ7665BATM+T
厂商： Maxim Integrated Products
文件页数： 45/47页
文件大小： 0K
描述： IC MCU-BASED DAS 16BIT 48-TQFN
标准包装： 2,500
系列： MAXQ®
核心处理器： RISC
芯体尺寸： 16-位
速度： 8MHz
连通性： CAN，LIN，UART/USART
外围设备： 欠压检测/复位，POR，PWM，WDT
输入/输出数： 8
程序存储器容量： 64KB（32K x 16）
程序存储器类型： 闪存
RAM 容量： 256 x 16
电压 - 电源 (Vcc/Vdd)： 2.7 V ~ 5.25 V
数据转换器： A/D 8x12b，D/A 1x12b
振荡器型： 内部
工作温度： -40°C ~ 125°C
封装/外壳： 48-VFQFN 裸露焊盘
包装： 带卷 (TR)
MAXQ7665A–MAXQ7665D
16-Bit RISC Microcontroller-Based
Smart Data-Acquisition Systems
_______________________________________________________________________________________
7
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDDIO = +5.0V, DVDD = +3.3V, fSYSCLK = 8MHz, VREFDAC = VREFADC = +5V, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY VOLTAGE SUPERVISORS AND BROWNOUT DETECTION
DVDD Voltage-Supervisor Reset
Rising Threshold
Power-on default, DVDD voltage rising
(Note 7)
2.70
2.99
V
VDBR = 00b
(default)
2.70
2.99
VDBR = 01b
2.77
3.06
VDBR = 10b
2.84
3.13
DVDD Voltage-Supervisor
Brownout Reset Falling Threshold
VVDBR
DVDD voltage falling,
firmware selectable,
measured with CPU
active at 8MHz
(Note 8)
VDBR = 11b
2.91
3.20
V
VDBI = 00b
(default)
2.77
3.06
VDBI = 01b
2.84
3.13
VDBI = 10b
2.91
3.20
Software-Selectable DVDD
Voltage-Supervisor Brownout
Interrupt Falling Threshold
VVDBI
DVDD voltage falling,
firmware selectable,
measured with CPU
active at 8MHz
(Note 9)
VDBI = 11b
2.99
3.27
V
VIOBI = 00b
(default)
4.25
4.74
VIOBI = 01b
4.30
4.79
VIOBI = 10b
4.35
4.84
DVDDIO Voltage-Supervisor
Brownout Interrupt Threshold
VVIOBI
DVDDIO voltage falling,
firmware selectable,
measured with CPU
active at 8MHz
(Note 10)
VIOBI = 11b
4.40
4.89
V
Voltage-Supervisor Hysteresis
DVDD, DVDDIO
1%
DVDD Brownout-Interrupt to
Brownout Reset Falling Threshold
Voltage difference between VVDBI and
VVDBR, time allowing software clean-up
before reset asserted, VDBI = 11b and
VDBR = 10b
155
mV
DVDD
1.0
3.6
Voltage Monitor Range
DVDDIO
0
5.25
V
DVDD Ramp-Up Rate
DVDD must rise faster than this rate
between +2.7V and +3.0V
35
mV/ms
RESET Hold Time
After DVDD rises above the VVDBR voltage
trip threshold
16
ms
CAN INTERFACE
CAN Baud Rate
CANCLK = 8MHz
1
Mbps
CANCLK Mean Frequency Error
50ppm external crystal error, 8MHz crystal
60
ppm
CANCLK Total Frequency Error
50ppm external crystal error, 8MHz crystal,
clock divided and measured over 500s
interval, mean plus peak cycle jitter
< 0.5
%
HIGH-FREQUENCY CRYSTAL OSCILLATOR
Using external crystal
7.6
8.12
Clock Frequency
External clock source
7.6
8.12
MHz
Crystal Oscillator Startup Time
8MHz crystal
10
ms
External Clock Input Duty Cycle
Ratio high-to-low or low-to-high
45
55
%
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