- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367741 > P80C557E6 (NXP Semiconductors N.V.) Single-chip 8-bit microcontroller(單片8位微控制器) PDF資料下載
參數(shù)資料
| 型號： | P80C557E6 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Single-chip 8-bit microcontroller(單片8位微控制器) |
| 中文描述： | 單芯片8位微控制器（單片8位微控制器） |
| 文件頁數(shù)： | 8/64頁 |
| 文件大?。?/td> | 476K |
| 代理商： | P80C557E6 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁
Philips Semiconductors
Product specification
P83C557E6/P80C557E6
Single-chip 8-bit microcontroller
1999 Mar 02
8
5.
ELECTROMAGNETICS COMPATIBILITY (EMC)
IMPROVEMENTS
Primary attention was paid on the reduction of electromagnetic
emission of the microcontroller P8xC557E6.
The following features effect in reducing the electromag– netic
emission and additionally improve the electromagnetic susceptibility:
Four supply voltage pins (V
DD
) and four ground pins (V
SS
) with
pairs of V
DD
and V
SS
at two adjacent pins at each side of the
package.
Separated V
DD
pins for the internal logic and the port buffers
Internal decoupling capacitance improves the EMC radiation
behavior and the EMC immunity
External capacitors are to be located as close as possible
between pins V
DD1
and V
SS1,
V
DD2
and V
SS2,
V
DD3
and V
SS3
as
well as V
DD4
and V
SS4
; ceramic chip capacitors are
recommended (100nF).
The ALE output signal (pulses at a frequency off
CLK
/6) can be
disabled under software control (bit 5 in the SFR PCON: “RFI”); if
disabled, no ALE pulse will occur. ALE pin will be pulled down
internally, switching an external address latch to a quiet state. The
MOVX instruction will still toggle ALE (external data memory is
accessed). ALE will retain its normal HIGH value during Idle Mode
and a LOW value during Power-down mode while in the “RFI”
reduction mode. Additionally during internal access (EA = 1) ALE
will toggle normally when the address exceeds the internal
program memory size. During external access (EA = 0) ALE will
always toggle normally, whether the flag “RFI” is set or not.
6.
FUNCTIONAL DESCRIPTION
6.1
The P8xC557E6 is a stand–alone high–performance microcontroller
designed for use in real time applications such as instrumentation,
industrial control, medium to high–end consumer applications and
specific automotive control applications.
General
In addition to the 80C51 standard functions, the device provides a
number of dedicated hardware functions for these applications.
The P8xC557E6 is a control–oriented CPU with on–chip program
and data memory. It can be extended with external program memory
up to 64 Kbytes. It can also access up to 64 Kbytes of external data
memory. For systems requiring extra capability, the P8xC557E6 can
be expanded using standard memories and peripherals.
The P8xC557E6 has two software selectable modes of reduced
activity for further power reduction – Idle and Power–down. The Idle
Mode freezes the CPU while allowing the RAM, timers, serial ports
and interrupt system to continue functioning. The Power–down
Mode saves the RAM contents but freezes the oscillator causing all
other chip functions to be inoperative.The Power–down Mode can
be terminated by an external Reset, by the seconds interrupt and by
any one of the two external interrupts. (see description Wake–up
from Power–down Mode).
Program Memory
64 K
DIRECT AND
INDIRECT
Internal
Data Memory
External
64 K
Internal
(EA = 1)
External
(EA = 0)
255
127
0
Special
Function
Registers
Overlapped
Space
0
External
Data Memory
49152
49151
0
INDIRECT
ONLY
0
49151
1280
(ARD = 1)
(ARD = 0)
1280 bytes
AUXILIARY
RAM
Figure 4. Memory map & address space.
相關PDF資料 |
PDF描述 |
|---|---|
| P89C58 | 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash |
| P89C54X2 | 80C51 8-bit Flash microcontroller family |
| P89C54X2BA | 80C51 8-bit Flash microcontroller family |
| P89C54X2BBD | 80C51 8-bit Flash microcontroller family |
| P89C54X2BN | 80C51 8-bit Flash microcontroller family |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P80C557E6EBB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller |
| P80C557E6EFB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller |
| P80C557E8 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8 BIT MICROCONTROLLER |
| P80C557E8EFB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| P80C562 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復。