參數(shù)資料
型號(hào): PIC16C745/JW
廠商: Microchip Technology
文件頁數(shù): 40/165頁
文件大?。?/td> 0K
描述: IC MCU EPROM8KX14 USB A/D 28CDIP
標(biāo)準(zhǔn)包裝: 15
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 24MHz
連通性: SCI,UART/USART,USB
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: 14KB(8K x 14)
程序存儲(chǔ)器類型: EPROM,UV
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 4.35 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 5x8b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 28-CDIP(0.300",7.62mm)窗口
包裝: 管件
PIC16C745/765
DS41124C-page 134
Preliminary
2000 Microchip Technology Inc.
TABLE 16-2:
EXTERNAL CLOCK TIMING REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
1A
FOSC
External CLKIN Frequency
(Note 1)
24
24
MHz
EC osc mode
6
6
MHz
E4 osc mode
Oscillator Frequency
(Note 1)
24
24
MHz
HS osc mode
6
6
MHz
H4 osc mode
1TOSC
External CLKIN Period
(Note 1)
41
41
ns
EC osc modes
167
167
ns
E4 osc mode
Oscillator Period
(Note 1)
41
41
ns
HS osc modes
167
167
ns
H4 osc mode
2TCY
Instruction Cycle Time (Note 1)
167
DC
ns
TCY = 4/FINT
3*
TOSL,
TOSH
External Clock in (OSC1) High or Low
Time
10
——
ns
EC oscillator
4*
TOSR,
TOSF
External Clock in (OSC1) Rise or Fall
Time
——
15
ns
EC oscillator
* 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.
Note 1:
Instruction cycle period (TCY) equals four times the input oscillator time-base period when the PLL is enabled, or the input
oscillator time-base period divided by 4 when the PLL is disabled. 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/CLKIN pin. When an external clock input
is used, the “Max.” cycle time limit is “DC” (no clock) for all devices.
745cov.book Page 134 Wednesday, August 2, 2000 8:24 AM
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