参数资料
型号: PIC14000T-20/SS
厂商: Microchip Technology
文件页数: 18/153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)
PIC14000
DS40122B-page 114
Preliminary
1996 Microchip Technology Inc.
FIGURE 13-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER (HS MODE) AND
POWER-UP TIMER TIMING
TABLE 13-3:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
30
TmcL
MCLR Pulse Width (low)
100
ns
VDD = 5V, -40
°C to +85°C
31
TWDT
Watchdog Timer Timeout Period
(No Prescaler)
7*
18
33*
ms
VDD = 5V, -40
°C to +85°C
ss(WDT)
Supply Sensitivity
-12.6
%/V
TA = 25
°C
tc(WDT)
Temperature Coefcient
0.5
%/
°C VDD = 5V
32
TOST
Oscillation Start-up Timer Period
1024 TOSC
8 TOSC
ms
TOSC = OSC1 period
IN osc mode
33
TPWRT
Power up Timer Period
28*
72
132*
ms
VDD = 5V, -40
°C to +85°C
34
TIOZ
I/O High Impedance from MCLR
Low
100
ns
*
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25
°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
32
Watchdog
Timer
RESET
PWRT
Timeout
MCLR
VDD
33
Internal
POR
OSC
Timeout
Internal
RESET
31
30
I/O Pin
34
Note: Refer to Figure 13-2 for load conditions
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