參數(shù)資料
型號(hào)： P89C51UBBB
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
中文描述： 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQFP44
封裝： PLASTIC, QFP-44
文件頁數(shù)： 8/68頁
文件大?。?/td> 404K
代理商： P89C51UBBB
Philips Semiconductors
Preliminary data
P89C51RA2/RB2/RC2/RD2xx
80C51 8-bit Flash microcontroller family
8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1KB RAM
2002 Jul 18
8
MNEMONIC
NAME AND FUNCTION
TYPE
PIN NUMBER
LQFP
PLCC
PDIP
PSEN
29
32
26
O
Program Store Enable:
The read strobe to external program memory. When
executing code from the external program memory, PSEN is activated twice each
machine cycle, except that two PSEN activations are skipped during each access
to external data memory. PSEN is not activated during fetches from internal
program memory.
EA/V
PP
31
35
29
I
External Access Enable/Programming Supply Voltage:
EA must be externally
held low to enable the device to fetch code from external program memory
locations. If EA is held high, the device executes from internal program memory.
The value on the EA pin is latched when RST is released and any subsequent
changes have no effect. This pin also receives the programming supply voltage
(V
PP
) during Flash programming.
Crystal 1:
Input to the inverting oscillator amplifier and input to the internal clock
generator circuits.
XTAL1
19
21
15
I
XTAL2
18
20
14
O
Crystal 2:
Output from the inverting oscillator amplifier.
NOTE:
To avoid “l(fā)atch-up” effect at power-on, the voltage on any pin (other than V
PP
) must not be higher than V
CC
+ 0.5 V or less than V
SS
– 0.5 V.
相關(guān)PDF資料
PDF描述
P89C51RC2 80C51 8-bit Flash microcontroller family
P89C51RC2HFBD 80C51 8-bit Flash microcontroller family
P89C51RD2HBP 80C51 8-bit Flash microcontroller family
P89C51RD2HXX 80C51 8-bit Flash microcontroller family
P89C51UBAA 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89C51UBBB-S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P89C51UBBB-T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P89C51UBPN 制造商:NXP Semiconductors 功能描述:
P89C51UFAA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
P89C51UFAA-T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*