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參數(shù)資料
| 型號： | P89C51RB2HXX |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 80C51 8-bit Flash microcontroller family |
| 中文描述： | 80C51的8位閃存微控制器系列 |
| 文件頁數(shù)： | 8/68頁 |
| 文件大?。?/td> | 404K |
| 代理商： | P89C51RB2HXX |
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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 |
|---|---|
| P89C51RC2HXX | 80C51 8-bit Flash microcontroller family |
| P89C51UBPN | 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash |
| P89C51UBAA-T | 8-BIT MICROCONTROLLER |
| P89C51BA | MICROCONTROLLER|8-BIT|8051 CPU|CMOS|LDCC|44PIN|PLASTIC |
| P89C51BBD | MICROCONTROLLER|8-BIT|8051 CPU|CMOS|QFP|44PIN|PLASTIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89C51RC+ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512.1K RAM |
| P89C51RC+IA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512.1K RAM |
| P89C51RC+IA-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| P89C51RC+IB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512.1K RAM |
| P89C51RC+IB-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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