參數(shù)資料
型號： DS80C323-END
廠商： Maxim Integrated Products
文件頁數(shù)： 33/38頁
文件大?。?/td> 0K
描述： IC MCU HI SPEED 18MHZ IND 44TQFP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
產(chǎn)品變化通告： Product Discontinuation 20/Feb/2012
標準包裝： 160
系列： 80C
核心處理器： 8051
芯體尺寸： 8-位
速度： 18MHz
連通性： EBI/EMI，SIO，UART/USART
外圍設(shè)備： 電源故障復位，WDT
輸入/輸出數(shù)： 32
程序存儲器類型： ROMless
RAM 容量： 256 x 8
電壓 - 電源 (Vcc/Vdd)： 4.5 V ~ 5.5 V
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-TQFP
包裝： 托盤
DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
4 of 38
PIN DESCRIPTION (continued)
PIN
DIP
PLCC
TQFP
NAME
FUNCTION
30
33
27
ALE
Address Latch-Enable Output. This pin functions as a clock to latch
the external address LSB from the multiplexed address/data bus. This
signal is commonly connected to the latch enable of an external 373
family transparent latch. ALE has a pulse width of 1.5 XTAL1 cycles
and a period of four XTAL1 cycles. ALE is forced high when the
device is in a reset condition.
39
43
37
AD0
38
42
36
AD1
37
41
35
AD2
36
40
34
AD3
35
39
33
AD4
34
38
32
AD5
33
37
31
AD6
32
36
30
AD7
Port 0, Input/Output. Port 0 is the multiplexed address/data bus.
During the time when ALE is high, the LSB of a memory address is
presented. When ALE falls, the port transitions to a bidirectional data
bus. This bus is used to read external ROM and read/write external
RAM memory or peripherals. The Port 0 has no true port latch and
cannot be written directly by software. The reset condition of Port 0 is
high. No pullup resistors are needed.
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, new External
Interrupts, and new Serial Port 1. 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 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 the output high (and
input) state. The alternate modes of Port 1 are outlined as follows:
PIN
DIP
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
RXD1
Serial Port 1 Input
4
5
43
P1.3
TXD1
Serial Port 1 Output
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,
1–3
P1.0–P1.7
8
9
3
P1.7
INT5
External Interrupt 5
(Negative-Edge Detect)
相關(guān)PDF資料
PDF描述
DS80C320-ENG IC MCU HI SPEED 25MHZ IND 44TQFP
DS89C450-ENG IC MCU FLASH 64KB 25MHZ 44-TQFP
DS89C440-QNL IC MCU FLASH 32KB 33MHZ 44-PLCC
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS80C323-END+ 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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
DS80C323ENG 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microprocessor
DS80C323-ENG 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide
DS80C323-ENL 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide
DS80C323-ENR 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide
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