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参数资料
| 型号： | DS80C323-MCD |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Microcontroller |
| 英文描述： | 8-BIT, MROM, 18 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | 0.600 INCH, PLASTIC, DIP-40 |
| 文件页数： | 34/38页 |
| 文件大小： | 694K |
| 代理商： | DS80C323-MCD |
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DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
5 of 38
PIN DESCRIPTION (continued)
PIN
DIP
PLCC
TQFP
NAME
FUNCTION
21
24
18
A8 (P2.0)
22
25
19
A9 (P2.1)
23
26
20
A10 (P2.2)
24
27
21
A11 (P2.3)
25
28
22
A12 (P2.4)
26
29
23
A13 (P2.5)
27
30
24
A14 (P2.6)
28
31
25
A15 (P2.7)
Port 2, Output. Port 2 serves as the MSB for external addressing.
P2.7 is A15 and P2.0 is A8. The device will automatically place the
MSB of an address on P2 for external ROM and RAM access.
Although Port 2 can be accessed like an ordinary I/O port, the value
stored on the Port 2 latch will never be seen on the pins (due to
memory access). Therefore, writing to Port 2 in software is only
useful for the instructions MOVX A, @Ri or MOVX @Ri, A. These
instructions use the Port 2 internal latch to supply the external address
MSB. In this case, the Port 2 latch value will be supplied as the
address information.
Port 3, Input/Output. Port 3 functions as both an 8-bit, bidirectional
I/O port and an alternate functional interface for External Interrupts,
Serial Port 0, Timer 0 & 1 Inputs, RD and WR strobes. The reset
condition of Port 3 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 will overcome
the weak pullup. When software writes a 0 to any port pin, the device
will activate 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 will
cause 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 both the output high and input state. The
alternate modes of Port 3 are outlined below:
PIN
DIP
PLCC
TQFP
PORT
ALTERNATE
MODE
10
11
5
P3.0
RXD0
Serial Port 0 Input
11
13
7
P3.1
TXD0
Serial Port 0 Output
12
14
8
P3.2
INT0
External Interrupt 0
13
15
9
P3.3
INT1
External Interrupt 1
14
16
10
P3.4
T0
Timer 0 External Input
15
17
11
P3.5
T1
Timer 1 External Input
16
18
12
P3.6
WR
External Data Memory Write
Strobe
10–17
11, 13–
19
5, 7–13
P3.0–P3.7
17
19
13
P3.7
RD
External Data Memory Read
Strobe
31
35
29
EA
External Access, Active-Low Input. This pin must be connected to
ground for proper operation.
—
12, 34,
1*
6, 28,
39*
N.C.
No Connection (Reserved). These pins should not be connected.
They are reserved for use with future devices in this family.
*These pins are reserved for additional ground pins on future products.
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PDF描述 |
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| DS80C320-QNL | 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQCC44 |
| DS80C320-MCL | 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PDIP40 |
| DS80C323-ECD | 8-BIT, MROM, 18 MHz, MICROCONTROLLER, PQFP44 |
| DS80C320-QCL | 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQCC44 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS80C323-MCD+ | 功能描述:8位微控制器 -MCU High-Speed Low-Power 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 |
| DS80C323MCG | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microprocessor |
| DS80C323-MCG | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C323-MCL | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C323-MCR | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
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