參數(shù)資料
型號(hào): PIC16C62B-20I/ML
廠商: Microchip Technology
文件頁(yè)數(shù): 78/120頁(yè)
文件大?。?/td> 0K
描述: IC MCU OTP 2KX14 PWM 28QFN
標(biāo)準(zhǔn)包裝: 61
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C,SPI
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 22
程序存儲(chǔ)器容量: 3.5KB(2K x 14)
程序存儲(chǔ)器類型: OTP
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 5.5 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-VQFN 裸露焊盤
包裝: 管件
其它名稱: PIC16C62B20I/ML
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PIC16C62B/72A
DS35008B-page 60
Preliminary
1999 Microchip Technology Inc.
10.8
Time-out Sequence
When a POR reset occurs, the PWRT delay starts (if
enabled). When PWRT ends, the OST counts 1024
oscillator cycles (LP, XT, HS modes only). When OST
completes, the device comes out of reset. The total
time-out will vary based on oscillator configuration and
the status of the PWRT. For example, in RC mode with
the PWRT disabled, there will be no time-out at all.
If MCLR is kept low long enough, the time-outs will
expire. Bringing MCLR high will begin execution imme-
diately. This is useful for testing purposes or to synchro-
nize more than one PIC16CXXX device operating in
parallel.
Table 10-5 shows the reset conditions for the STATUS,
PCON and PC registers, while Table 10-6 shows the
reset conditions for all the registers.
10.9
Power Control/Status Register
(PCON)
The BOR bit is unknown on Power-on Reset. If the
Brown-out Reset circuit is used, the BOR bit must be
set by the user and checked on subsequent resets to
see if it was cleared, indicating a Brown-out has
occurred.
POR (Power-on Reset Status bit) is cleared on a
Power-on Reset and unaffected otherwise. The user
Status Register
PCON Register
TABLE 10-3
TIME-OUT IN VARIOUS SITUATIONS
TABLE 10-4
STATUS BITS AND THEIR SIGNIFICANCE
TABLE 10-5
RESET CONDITION FOR SPECIAL REGISTERS
IRP
RP1
RP0
TO
PD
Z
DC
C
POR
BOR
Oscillator Configuration
Power-up
Brown-out
Wake-up from
SLEEP
PWRTE = 0
PWRTE = 1
XT, HS, LP
72 ms + 1024TOSC
1024TOSC
72 ms + 1024TOSC
1024TOSC
RC
72 ms
—72 ms
POR
BOR
TO
PD
0x
1
Power-on Reset
0x
0
x
Illegal, TO is set on POR
0x
x
0
Illegal, PD is set on POR
10
1
Brown-out Reset
11
0
1
WDT Reset
11
0
WDT Wake-up
11
u
MCLR Reset during normal operation
11
1
0
MCLR Reset during SLEEP or interrupt wake-up from SLEEP
Condition
Program
Counter
STATUS
Register
PCON
Register
Power-on Reset
000h
0001 1xxx
---- --0x
MCLR Reset during normal operation
000h
000u uuuu
---- --uu
MCLR Reset during SLEEP
000h
0001 0uuu
---- --uu
WDT Reset
000h
0000 1uuu
---- --uu
WDT Wake-up
PC + 1
uuu0 0uuu
---- --uu
Brown-out Reset
000h
0001 1uuu
---- --u0
Interrupt wake-up from SLEEP
PC + 1
(1)
uuu1 0uuu
---- --uu
Legend: u = unchanged, x = unknown, - = unimplemented bit read as '0'.
Note 1:
When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h).
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