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

X  

SM79164C35Q 数据表(PDF) 11 Page - SyncMOS Technologies,Inc

部件名 SM79164C35Q
功能描述  8 - Bit Micro-controller with 64KB flash & 4KB RAM embedded
Download  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  SYNCMOS [SyncMOS Technologies,Inc]
网页  http://www.syncmos.com.tw
标志 SYNCMOS - SyncMOS Technologies,Inc

SM79164C35Q 数据表(HTML) 11 Page - SyncMOS Technologies,Inc

Back Button SM79164C35Q Datasheet HTML 7Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 8Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 9Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 10Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 11Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 12Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 13Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 14Page - SyncMOS Technologies,Inc SM79164C35Q Datasheet HTML 15Page - SyncMOS Technologies,Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 25 page
background image
Specifications subject to change without notice,contact your sales representatives for the most recent information.
11/26
Ver 2.1
SM79164 08/2006
SyncMOS Technologies International. Inc.
SM79164
1.4 I/O Pin Configuration
The ports 1, 2 and 3 of standard 8051 have internal pull-up resistor, and port 0 has open-drain outputs. Each I/O pin can be
used independently as an input or an output. For I/O ports to be used as an input pin, the port bit latch must contain a ‘1’
which turns off the output driver FET. Then for port 1, 2 and 3 port pin is pulled high by a weak internal pull-up, and can be
pulled low by an external source. The port 0 has open-drain outputs which means its pull-ups are not active during normal
port operation. Writing ‘1’ to the port 0 bit latch will causing bit floating so that it can be used as a high-impedance input.
The port 4 used as GPIO will has the same function as port 1, 2 and 3.
pin
input
data
output
data
pin
input
data
output
data
port 0
standard 8051
port 1, 2 and 3
standard 8051
2. Port 4 for PLCC or QFP package:
The bit addressable port 4 is available with PLCC or QFP package. The port 4 has only 4 pins and its port address is located
at 0D8H. The function of port 4 is the same as the function of port 1, port 2 and port 3.
Port4 (P4, $D8)
The bit 3, bit 2, bit 1, bit 0 output the setting to pin P4.3, P4.2, P4.1, P4.0 respectively.
3. Watch Dog Timer
The Watch Dog Timer (WDT) is a 16-bit free-running counter that generate reset signal if the counter overflows. The WDT is
useful for systems which are susceptible to noise, power glitches, or electronics discharge which causing software dead
loop or runaway. The WDT function can help user software recover from abnormal software condition. The WDT is different
from Timer0, Timer1 and Timer2 of general 8052. To prevent a WDT reset can be done by software periodically clearing the
WDT counter. User should check WDR bit of SCONF register whenever un-predicted reset happened.
The purpose of the secure procedure is to prevent the WDTC value from being changed when system runaway.
There is a 250KHz RC oscillator embedded in chip. Set WDTE = “1” will enable the RC oscillator and the frequency is inde-
pendent to the system frequency.
To enable the WDT is done by setting 1 to the bit 7 (WDTE) of WDTC. After WDTE set to 1, the 16-bit counter starts to count
with the RC oscillator. It will generate a reset signal when overflows. The WDTE bit will be cleared to 0 automatically when
SM79164 been reset, either hardware reset or WDT reset.
To reset the WDT is done by setting 1 to the CLEAR bit of WDTC before the counter overflow. This will clear the content of
the 16-bit counter and let the counter re-start to count from the beginning.
bit-7
bit-0
Unused
Unused
Unused
Unused
P4.3
P4.2
P4.1
P4.0
Read / Write:
----
R/W
R/W
R/W
R/W
Reset value:
****
1111


类似零件编号 - SM79164C35Q

制造商部件名数据表功能描述
logo
SyncMOS Technologies,In...
SM79108 SYNCMOS-SM79108 Datasheet
590Kb / 26P
   8-Bit Micro-controller with 8KB flash & 256 Bytes RAM embedded
SM79108 SYNCMOS-SM79108 Datasheet
493Kb / 25P
   8 - Bit Micro-controller with 8KB flash & 256 Bytes RAM embedded
SM79108C40 SYNCMOS-SM79108C40 Datasheet
590Kb / 26P
   8-Bit Micro-controller with 8KB flash & 256 Bytes RAM embedded
SM79108C40 SYNCMOS-SM79108C40 Datasheet
493Kb / 25P
   8 - Bit Micro-controller with 8KB flash & 256 Bytes RAM embedded
SM79108L25 SYNCMOS-SM79108L25 Datasheet
590Kb / 26P
   8-Bit Micro-controller with 8KB flash & 256 Bytes RAM embedded
More results

类似说明 - SM79164C35Q

制造商部件名数据表功能描述
logo
SyncMOS Technologies,In...
SM89516L SYNCMOS-SM89516L Datasheet
436Kb / 19P
   8 - Bit Micro-controller with 64KB flash & 1KB RAM embedded
SM89516A SYNCMOS-SM89516A Datasheet
535Kb / 25P
   8 - Bit Micro-controller with 64KB flash 1KB RAM embedded
SM89516A SYNCMOS-SM89516A_06 Datasheet
873Kb / 22P
   8-Bits Micro-controller With 64KB flash & 1KB RAM embedded
SM89516 SYNCMOS-SM89516 Datasheet
735Kb / 19P
   8-Bits Micro-controller With 64KB flash & 1KB RAM embedded
SM5964A SYNCMOS-SM5964A Datasheet
885Kb / 30P
   8-Bit Micro-controller With 64KB ISP Flash & TWSI & PWM & 1KB RAM embedded
SM5964 SYNCMOS-SM5964_06 Datasheet
886Kb / 26P
   8-Bits Micro-controller 64KB ISP flash & 1KB RAM embedded
SM894051 SYNCMOS-SM894051 Datasheet
493Kb / 15P
   8-Bits Micro-controller With 4KB Flash ROM embedded
SM8958A SYNCMOS-SM8958A Datasheet
509Kb / 25P
   8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded
SM59264 SYNCMOS-SM59264 Datasheet
579Kb / 32P
   8 - Bit Micro-controller with 128KB flash & 1KB RAM embedded
SM79108 SYNCMOS-SM79108_06 Datasheet
493Kb / 25P
   8 - Bit Micro-controller with 8KB flash & 256 Bytes RAM embedded
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 24 25


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