參數(shù)資料
型號(hào)： PIC16C505-04
廠商： Microchip Technology Inc.
元件分類： 8位微控制器
英文描述： 14-Pin, 8-Bit CMOS Microcontroller
中文描述： 14引腳，8位CMOS微控制器
文件頁(yè)數(shù)： 36/84頁(yè)
文件大小： 449K
代理商： PIC16C505-04
PIC16C505
DS40192B-page 36
Preliminary
1998 Microchip Technology Inc.
7.7
Time-Out Sequence, Power Down,
and Wake-up from SLEEP Status Bits
(TO/PD/RBWUF)
The TO, PD, and RBWUF bits in the STATUS register
can be tested to determine if a RESET condition has
been caused by a power-up condition, a MCLR or
Watchdog Timer (WDT) reset.
TABLE 7-7:
TO/PD/RBWUF STATUS
AFTER RESET
RBWUF
TO
PD
RESET caused by
WDT wake-up from
SLEEP
WDT time-out (not from
SLEEP)
MCLR wake-up from
SLEEP
Power-up
MCLR not during SLEEP
Wake-up from SLEEP on
pin change
Legend: u = unchanged
Note 1:
The TO, PD, and RBWUF bits main-
tain their status (u) until a reset
occurs. A low-pulse on the MCLR
input does not change the TO, PD,
and RBWUF status bits.
0
0
0
0
0
u
0
1
0
0
0
1
1
u
1
1
u
0
Legend:
7.8
Reset on Brown-Out
A brown-out is a condition where device power (V
DD
)
dips below its minimum value, but not to zero, and then
recovers. The device should be reset in the event of a
brown-out.
To reset PIC16C505 devices when a brown-out
occurs, external brown-out protection circuits may be
built, as shown in Figure 7-13 and Figure 7-14.
FIGURE 7-13: BROWN-OUT PROTECTION
CIRCUIT 1
FIGURE 7-14: BROWN-OUT PROTECTION
CIRCUIT 2
This circuit will activate reset when V
DD
goes below Vz +
0.7V (where Vz = Zener voltage).
*Refer to Figure 7-7 and Table 10-1 for internal weak pull-
up on MCLR.
33k
10k
40k*
V
DD
MCLR
PIC16C505
V
DD
Q1
This brown-out circuit is less expensive, although
less accurate. Transistor Q1 turns off when V
DD
is below a certain level such that:
R1
R1 + R2
*Refer to Figure 7-7 and Table 10-1 for internal weak
pull-up on MCLR.
V
DD
= 0.7V
R2
40k*
V
DD
MCLR
PIC16C505
R1
Q1
V
DD
相關(guān)PDF資料
PDF描述
PIC16C505 14-Pin, 8-Bit CMOS Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,12個(gè)I/O口，帶WDT的微控制器)
PIC16C54C EPROM/ROM-Based 8-Bit CMOS Microcontroller(18引腳、12個(gè)I/O端口、512位EPROM/ROM的8位CMOS微控制器)
PIC16C54 EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個(gè)I/O口有20mA吸收,25mA驅(qū)動(dòng),12個(gè)I/O，2.5V的微控制器)
PIC16CR54B EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個(gè)I/O口有20mA吸收,25mA驅(qū)動(dòng),12個(gè)I/O，2.5V的微控制器)
PIC16CR56A EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個(gè)I/O有20mA吸收/25mA驅(qū)動(dòng),12個(gè)I/O，2.5V的微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16C505-04/P 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 I/O 4MHz PDIP14 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC16C505-04/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU (TUBE 30) 16C505 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C505 DIP14
PIC16C505-04/SL 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 I/O 4MHz SOIC14 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC16C505-04/SL 制造商:Microchip Technology Inc 功能描述:8BIT CMOS MCU SMD 16C505 SOIC14
PIC16C505-04E/P 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 I/O 4MHz Ext Temp PDIP14 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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

*
*
*