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参数资料
| 型号： | DS80C310-QNG+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/22页 |
| 文件大小： | 0K |
| 描述： | IC MCU HI SPEED 25MHZ IND 44PLCC |
| 标准包装： | 500 |
| 系列： | 80C |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 25MHz |
| 连通性： | EBI/EMI，SIO，UART/USART |
| 外围设备： | 欠压检测/复位，POR |
| 输入/输出数： | 32 |
| 程序存储器类型： | ROMless |
| RAM 容量： | 256 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 4.5 V ~ 5.5 V |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-LCC（J 形引线） |
| 包装： | 带卷 (TR) |
DS80C310
3 of 22
PIN DESCRIPTION
PIN
PDIP
PLCC
TQFP
NAME
FUNCTION
Port 1 (I/O). Port 1 functions as both an 8-bit bidirectional I/O port
and an alternate functional interface for Timer 2 I/O and new
external interrupts. The reset condition of Port 1 is with all bits at
logic 1. In this state, a weak pullup holds the port high. This
condition also serves as an input mode, since any external circuit
that writes to the port overcomes the weak pullup. When software
writes a 0 to any port pin, the DS80C310 activates a strong pulldown
that remains on until either a 1 is written or a reset occurs. Writing a
1 after the port has been at 0 causes a strong transition driver to turn
on, followed by a weaker sustaining pullup. Once the momentary
strong driver turns off, the port once again becomes the output high
(and input) state. The alternate modes of Port 1 are outlined as
follows:
PIN
PDIP
PLCC
TQFP
PORT
ALTERNATE
FUNCTION
1
2
40
P1.0
T2
External I/O for
Timer/Counter 2
2
3
41
P1.1
T2EX
Timer/Counter 2
Capture/Reload
Trigger
3
4
42
P1.2
—
DS80C320 has a serial
port RXD
4
5
43
P1.3
—
DS80C320 has a serial
port TXD
5
6
44
P1.4
INT2
External Interrupt 2
(Positive Edge Detect)
6
7
1
P1.5
INT3
External Interrupt 3
(Negative Edge
Detect)
7
8
2
P1.6
INT4
External Interrupt 4
(Positive Edge Detect)
1–8
2–9
40–44,
1, 2, 3
P1.0–P1.7
8
9
3
P1.7
INT5
External Interrupt 5
(Negative Edge
Detect)
9
10
4
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS80C320 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Speed/Low-Power Microcontrollers |
| DS80C320_06 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Speed/Low-Power Microcontrollers |
| DS80C320+ENL | 制造商:Maxim Integrated Products 功能描述:MCU 8BIT CISC ROMLESS 5V 44TQFP - Trays |
| DS80C320+FCG | 制造商:Maxim Integrated Products 功能描述:MICRO HI SPD 44PQFP 25MHZ PB-FREE - Trays |
| DS80C320+FNG | 制造商:Maxim Integrated Products 功能描述:MICRO HS 44MQFP 25MHZ IND PB-FREE - Trays |
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