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| 型号： | DS80C390-QNR+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 18/53页 |
| 文件大小： | 0K |
| 描述： | IC MPU CAN DUAL HS IND 68-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 18 |
| 系列： | 80C |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 40MHz |
| 连通性： | CAN，EBI/EMI，SIO，UART/USART |
| 外围设备： | 电源故障复位，WDT |
| 输入/输出数： | 32 |
| 程序存储器类型： | ROMless |
| RAM 容量： | 4K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 3.85 V ~ 5.5 V |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 68-LCC（J 形引线） |
| 包装： | 管件 |
| 产品目录页面： | 703 (CN2011-ZH PDF) |
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DS80C390 Dual CAN High-Speed Microprocessor
25 of 53
PIN DESCRIPTION
PIN
LQFP
PLCC
NAME
FUNCTION
8, 22, 40,
56
17, 32, 51,
68
VCC
+5V
9, 25, 41,
57
1, 18, 35,
52
GND
Digital Circuit Ground
46
57
ALE
Address Latch Enable, Output.
When the
MUX pin is low, this pin
outputs a clock to latch the external address LSB from the
multiplexed address/data bus on Port 0. This signal is commonly
connected to the latch enable of an external transparent latch. ALE
has a pulse width of 1.5 XTAL1 cycles and a period of four XTAL1
cycles. When the
MUX pin is high, the pin will toggle continuously if
the ALEOFF bit is cleared. ALE is forced high when the device is in a
reset condition or if the ALEOFF bit is set while the
MUX pin is high.
45
56
PSEN
Program Store Enable, Output.
This signal is the chip enable for
external ROM memory.
PSEN provides an active-low pulse and is
driven high when external ROM is not being accessed.
47
58
EA
External Access Enable, Input.
This pin must be wired to GND for
proper operation.
26
36
MUX
Multiplex/Demultiplex Select, Input.
This pin selects if the
address/data bus operates in multiplexed (
MUX = 0) or demultiplexed
(
MUX = 1) mode.
2
11
RST
Reset, Input.
The RST input pin contains a Schmitt voltage input to
recognize external active-high reset inputs. The pin also employs an
internal pulldown resistor to allow for a combination of wired-OR
external reset sources. An RC circuit is not required for power-up, as
the device provides this function internally.
3
12
RSTOL
Reset Output Low, Output.
This active-low signal is asserted:
When the processor has entered reset through the RST pin,
During crystal warmup period following power-on or stop mode,
During a watchdog timer reset (2 cycles duration),
During an oscillator failure (if OFDE = 1),
Whenever VCC ≤ VRST.
23
33
XTAL2
24
34
XTAL1
XTAL1, XTAL2.
Crystal oscillator pins support fundamental mode,
parallel resonant, and AT-cut crystals. XTAL1 is the input if an
external clock source is used in place of a crystal. XTAL2 is the
output of the crystal amplifier.
55
67
AD0/D0
54
66
AD1/D1
53
65
AD2/D2
52
64
AD3/D3
51
63
AD4/D4
50
62
AD5/D5
49
61
AD6/D6
48
59
AD7/D7
AD0–7 (Port 0), I/O.
When the
MUX pin is wired low, Port 0 is the
multiplexed address/data bus. While ALE is high, the LSB of a
memory address is presented. While ALE falls, the port transitions to
a bidirectional data bus. When the
MUX pin is wired high, Port 0
functions as the bidirectional data bus. Port 0 cannot be modified by
software. The reset condition of Port 0 pins is high. No pullup
resistors are needed.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS80C390-QNR+ | 功能描述:8位微控制器 -MCU Dual CAN High-Speed RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| DS80C400 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontroller |
| DS80C400_03 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontroller |
| DS80C400_07 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontroller |
| DS80C400_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontroller |
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