參數(shù)資料
型號: PIC16C54C
廠商: Microchip Technology Inc.
英文描述: EPROM/ROM-Based 8-Bit CMOS Microcontroller(18引腳、12個I/O端口、512位EPROM/ROM的8位CMOS微控制器)
中文描述: 存儲器/基于ROM的8位CMOS微控制器(18引腳,12個的I / O,512位存儲器端口/光盤的8位的CMOS微控制器)
文件頁數(shù): 35/158頁
文件大小: 1194K
代理商: PIC16C54C
2000 Microchip Technology Inc.
Preliminary
DS30453C-page 35
PIC16C5X
The Electrical Specification sections show RC fre-
quency variation from part to part due to normal pro-
cess variation.
Also, see the Electrical Specification sections for varia-
tion of oscillator frequency due to V
DD
for given
R
EXT
/C
EXT
values, as well as frequency variation due
to operating temperature for given R, C and V
DD
val-
ues.
The oscillator frequency, divided by 4, is available on
the OSC2/CLKOUT pin, and can be used for test pur-
poses or to synchronize other logic.
FIGURE 7-7:
RC OSCILLATOR MODE
Note:
If you change from one device to another
device, please verify oscillator characteris-
tics in your application.
V
DD
R
EXT
C
EXT
V
SS
OSC1
Internal
clock
OSC2/CLKOUT
F
OSC
/4
PIC16C5X
N
7.3
RESET
PIC16C5X devices may be RESET in one of the follow-
ing ways:
Power-on Reset (POR)
MCLR Reset (normal operation)
MCLR Wake-up Reset (from SLEEP)
WDT Reset (normal operation)
WDT Wake-up Reset (from SLEEP)
Table 7-3 shows these RESET conditions for the PCL
and STATUS registers.
Some registers are not affected in any RESET condi-
tion. Their status is unknown on POR and unchanged
in any other RESET. Most other registers are reset to a
RESET state
on Power-on Reset (POR), MCLR or
WDT Reset. A MCLR or WDT Wake-up from SLEEP
also results in a device RESET, and not a continuation
of operation before SLEEP.
The TO and PD bits (STATUS <4:3>) are set or cleared
depending on the different RESET conditions
(Section 7.7). These bits may be used to determine the
nature of the RESET.
Table 7-4 lists a full description of RESET states of all
registers. Figure 7-8 shows a simplified block diagram
of the on-chip RESET circuit.
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PIC16C54C04/SO 制造商:Microchip Technology 功能描述:8 PIC16C 4MHz 18SOIC 制造商:Microchip Technology 功能描述:8 PIC16C 4MHz 18SOIC Bulk
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