參數(shù)資料
型號(hào)： 12CE673
廠商： Microchip Technology Inc.
英文描述： HookUp/Lead Wire; Conductor Size AWG:18; No. Strands x Strand Size:65 x 36; Jacket Color:Black; Conductor Material:Copper; Jacket Material:Rubber; Leaded Process Compatible:Yes; Number of Conductors:1; Outer Diameter:0.144" RoHS Compliant: Yes
中文描述： 8引腳，8位CMOS微控制器與A / D轉(zhuǎn)換器和EEPROM數(shù)據(jù)存儲(chǔ)器
文件頁數(shù)： 90/116頁
文件大?。?/td> 671K
代理商： 12CE673
PIC12CE67X
DS40181B-page 90
Preliminary
1998 Microchip Technology Inc.
12.6
Timing Diagrams and Specifications
FIGURE 12-2: EXTERNAL CLOCK TIMING
TABLE 12-2:
CLOCK TIMING REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
Fosc
External CLKIN Frequency
(Note 1)
DC
DC
DC
DC
DC
.455
4
4
5
250
250
100
5
250
250
250
100
5
400
50
2.5
10
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4
4
MHz
MHz
MHz
kHz
MHz
MHz
MHz
MHz
kHz
ns
ns
ns
μ
s
ns
ns
ns
ns
μ
s
ns
ns
μ
s
ns
ns
ns
ns
XT and EXTRC osc mode
HS osc mode (PIC12CE67X-04)
HS osc mode (PIC12CE67X-10)
LP osc mode
EXTRC osc mode
XT osc mode
HS osc mode (PIC12CE67X-04)
HS osc mode (PIC12CE67X-10)
LP osc mode
XT and EXTRC osc mode
HS osc mode (PIC12CE67X-04)
HS osc mode (PIC12CE67X-10)
LP osc mode
EXTRC osc mode
XT osc mode
HS osc mode (PIC12CE67X-04)
HS osc mode (PIC12CE67X-10)
LP osc mode
T
CY
= 4/F
OSC
XT oscillator
LP oscillator
HS oscillator
XT oscillator
LP oscillator
HS oscillator
10
200
4
4
4
10
200
—
—
—
—
—
10,000
250
250
—
DC
—
—
—
25
50
15
Oscillator Frequency
(Note 1)
1
Tosc
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
2
3
T
CY
TosL,
TosH
Instruction Cycle Time (Note 1)
External Clock in (OSC1) High
or Low Time
4
TosR,
TosF
External Clock in (OSC1) Rise
or Fall Time
Data in "Typ" column is at 5V, 25
°
C unless otherwise stated. These parameters are for design guidance only and are not
tested.
Instruction cycle period (T
CY
) equals four times the input oscillator time-base period. All specified values are based on
characterization data for that particular oscillator type under standard operating conditions with the device executing code.
Exceeding these specified limits may result in an unstable oscillator operation and/or higher than expected current con-
sumption. All devices are tested to operate at "min." values with an external clock applied to the OSC1/CLKIN pin.
When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices. OSC2 is disconnected
(has no loading) for the PIC12CE67X.
Note 1:
OSC1
CLKOUT
Q4
Q1
Q2
Q3
Q4
Q1
1
2
3
3
4
4
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