參數資料
型號: PIC14000-04
廠商: Microchip Technology Inc.
英文描述: 28-Pin Programmable Mixed Signal Controller
中文描述: 28引腳可編程混合信號控制器
文件頁數: 111/152頁
文件大?。?/td> 953K
代理商: PIC14000-04
1996 Microchip Technology Inc.
Preliminary
DS40122B-page 111
PIC14000
13.4
Timing Diagrams and Specifications
FIGURE 13-1: EXTERNAL CLOCK TIMING
TABLE 13-1:
EXTERNAL CLOCK TIMING REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
F
OSC
External CLKIN Frequency (Note 1)
DC
DC
4
20
MHz
MHz
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
Oscillator Frequency (Note 1)
4
4
4
20
MHz
MHz
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
1
T
OSC
External CLKIN Period (Note 1)
250
50
ns
ns
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
Oscillator Period (Note 1)
250
50
250
250
ns
ns
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
2
T
CY
Instruction Cycle Time (Note 1)
200
DC
ns
T
CY
= 4/F
OSC
3
T
OS
L,
T
OS
H
Clock in (OSC1) High or Low Time
10
ns
HS oscillator
4
T
OS
R,
T
OS
F
Clock in (OSC1) Rise or Fall Time
15
ns
HS oscillator
Data in “Typ” column is at 5V, 25
°
C unless otherwise stated. These parameters are for design guidance only
and are not tested.
Note 1: 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 consumption. All devices are tested to operate at “min.” values with an external
clock applied to the OSC1 pin.
When an external clock input is used, the “Max.” cycle time limit is “DC” (no clock) for all devices.
3
3
4
4
1
2
Q4
Q1
Q2
Q3
Q4
Q1
OSC1
CLKOUT
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PIC14000-04/SS 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT
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