数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

LD80C58 数据表(PDF) 6 Page - Intel Corporation

部件名 LD80C58
功能描述  CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Download  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  INTEL [Intel Corporation]
网页  http://www.intel.com
标志 INTEL - Intel Corporation

LD80C58 数据表(HTML) 6 Page - Intel Corporation

Back Button LD80C58 Datasheet HTML 2Page - Intel Corporation LD80C58 Datasheet HTML 3Page - Intel Corporation LD80C58 Datasheet HTML 4Page - Intel Corporation LD80C58 Datasheet HTML 5Page - Intel Corporation LD80C58 Datasheet HTML 6Page - Intel Corporation LD80C58 Datasheet HTML 7Page - Intel Corporation LD80C58 Datasheet HTML 8Page - Intel Corporation LD80C58 Datasheet HTML 9Page - Intel Corporation LD80C58 Datasheet HTML 10Page - Intel Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 23 page
background image
8XC525458
Table 2 Status of the External Pins during Idle and Power Down
Mode
Program
ALE
PSEN
PORT0
PORT1
PORT2
PORT3
Memory
Idle
Internal
1
1
Data
Data
Data
Data
Idle
External
1
1
Float
Data
Address
Data
Power Down
Internal
0
0
Data
Data
Data
Data
Power Down
External
0
0
Float
Data
Data
Data
POWER DOWN MODE
To save even more power a Power Down mode can
be invoked by software In this mode the oscillator
is stopped and the instruction that invoked Power
Down is the last instruction executed The on-chip
RAM and Special Function Registers retain their val-
ues until the Power Down mode is terminated
On the 8XC5X either a hardware reset or an external
interrupt can cause an exit from Power Down Reset
redefines all the SFRs but does not change the on-
chip RAM An external interrupt allows both the
SFRs and on-chip RAM to retain their values
To properly terminate Power Down the reset or ex-
ternal interrupt should not be executed before VCC is
restored to its normal operating level and must be
held active long enough for the oscillator to restart
and stabilize (normally less than 10 ms)
With an external interrupt INT0 and INT1 must be
enabled and configured as level-sensitive Holding
the pin low restarts the oscillator but bringing the pin
back high completes the exit Once the interrupt is
serviced the next instruction to be executed after
RETI will be the one following the instruction that put
the device into Power Down
DESIGN CONSIDERATION
 The window on the D87C5X must be covered by
an opaque label Otherwise the DC and AC char-
acteristics may not be met and the device may
be functionally impaired
 When the idle mode is terminated by a hardware
reset the device normally resumes program exe-
cution from where it left off up to two machine
cycles before the internal reset algorithm takes
control On-chip hardware inhibits access to inter-
nal RAM in this event but access to the port pins
is not inhibited To eliminate the possibility of an
unexpected write when Idle is terminated by re-
set the instruction following the one that invokes
Idle should not be one that writes to a port pin or
to external memory
ONCE MODE
The ONCE (‘‘On-Circuit Emulation’’) Mode facilitates
testing and debugging of systems using the 8XC5X
without the 8XC5X having to be removed from the
circuit The ONCE Mode is invoked by
1) Pull ALE low while the device is in reset and
PSEN is high
2) Hold ALE low as RST is deactivated
While the device is in ONCE Mode the Port 0 pins
float and the other port pins and ALE and PSEN are
weakly pulled high The oscillator circuit remains ac-
tive While the 8XC5X is in this mode an emulator or
test CPU can be used to drive the circuit Normal
operation is restored when a normal reset is applied
NOTE
For more detailed information on the reduced power modes refer to current Embedded Microcontrollers and Processors
Handbook Volume I (Order No 270645) and Application Note AP-252 (Embedded Applications Handbook Order No
270648) ‘‘Designing with the 80C51BH’’
6


类似零件编号 - LD80C58

制造商部件名数据表功能描述
logo
Rochester Electronics
LD80C51FA ROCHESTER-LD80C51FA Datasheet
1,007Kb / 1P
   POWERFUL MICROCONTROLLER from the MCS 51 controller family 40 pin DIP
LD80C51FA1 ROCHESTER-LD80C51FA1 Datasheet
1,007Kb / 1P
   POWERFUL MICROCONTROLLER from the MCS 51 controller family 40 pin DIP
More results

类似说明 - LD80C58

制造商部件名数据表功能描述
logo
Intel Corporation
8XC51GB INTEL-8XC51GB Datasheet
311Kb / 22P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
80C31BH INTEL-80C31BH Datasheet
229Kb / 16P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
8XC52 INTEL-8XC52 Datasheet
317Kb / 23P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
80C52 INTEL-80C52 Datasheet
312Kb / 23P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
87C51FA INTEL-87C51FA Datasheet
279Kb / 18P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
8XC51R INTEL-8XC51R Datasheet
294Kb / 20P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
EN80C321SF88 INTEL-EN80C321SF88 Datasheet
1Mb / 23P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
M80C51FB INTEL-M80C51FB Datasheet
184Kb / 12P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
EE87C51FB1SF76 INTEL-EE87C51FB1SF76 Datasheet
256Kb / 18P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
87C51FA INTEL-87C51FA Datasheet
279Kb / 18P
   CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com