参数资料
型号: PIC14000T-20/SS
厂商: Microchip Technology
文件页数: 15/153页
文件大小: 0K
描述: IC MCU OTP 4KX14 A/D 28SSOP
标准包装: 2,100
系列: PIC® 14
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C
外围设备: POR,温度传感器,WDT
输入/输出数: 20
程序存储器容量: 7KB(4K x 14)
程序存储器类型: OTP
RAM 容量: 192 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 6 V
数据转换器: 斜率 A/D
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
包装: 带卷 (TR)
1996 Microchip Technology Inc.
Preliminary
DS40122B-page 111
PIC14000
13.4
Timing Diagrams and Specications
FIGURE 13-1: EXTERNAL CLOCK TIMING
TABLE 13-1:
EXTERNAL CLOCK TIMING REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
FOSC
External CLKIN Frequency (Note 1)
DC
4
20
MHz
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
Oscillator Frequency (Note 1)
4
4
20
MHz
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
1
TOSC
External CLKIN Period (Note 1)
250
50
ns
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
Oscillator Period (Note 1)
250
50
250
ns
HS osc mode (PIC14000-04)
HS osc mode (PIC14000-20)
2
TCY
Instruction Cycle Time (Note 1)
200
DC
ns
TCY = 4/FOSC
3
TOSL,
TOSH
Clock in (OSC1) High or Low Time
10
ns
HS oscillator
4
TOSR,
TOSF
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 (TCY) equals four times the input oscillator time base period. All specied values are
based on characterization data for that particular oscillator type under standard operating conditions with the
device executing code. Exceeding these specied 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
4
1
2
Q4
Q1
Q2
Q3
Q4
Q1
OSC1
CLKOUT
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