參數(shù)資料
型號: AT90LS8535-4AI
廠商: Atmel
文件頁數(shù): 22/127頁
文件大小: 0K
描述: IC MCU 8K 4MHZ A/D LV IT 44TQFP
標準包裝: 160
系列: AVR® 90LS
核心處理器: AVR
芯體尺寸: 8-位
速度: 4MHz
連通性: SPI,UART/USART
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 8KB(4K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 6 V
數(shù)據(jù)轉換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 托盤
PIC16C71X
DS30272A-page 118
1997 Microchip Technology Inc.
Applicable Devices
710 71 711 715
13.5
Timing Diagrams and Specications
FIGURE 13-2: EXTERNAL CLOCK TIMING
TABLE 13-2:
CLOCK TIMING REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
Fos
External CLKIN Frequency
(Note 1)
DC
4
MHz
XT osc mode
DC
4
MHz
HS osc mode (PIC16C715-04)
DC
20
MHz
HS osc mode (PIC16C715-20)
DC
200
kHz
LP osc mode
Oscillator Frequency
(Note 1)
DC
4
MHz
RC osc mode
0.1
4
MHz
XT osc mode
4
4
MHz
HS osc mode (PIC16C715-04)
4
5
10
20
200
MHz
kHz
HS osc mode (PIC16C715-10)
HS osc mode (PIC16C715-20)
LP osc mode
1
Tosc
External CLKIN Period
(Note 1)
250
ns
XT osc mode
250
ns
HS osc mode (PIC16C715-04)
100
ns
HS osc mode (PIC16C715-10)
50
ns
HS osc mode (PIC16C715-20)
5
s
LP osc mode
Oscillator Period
(Note 1)
250
ns
RC osc mode
250
10,000
ns
XT osc mode
250
250
ns
HS osc mode (PIC16C715-04)
100
50
250
ns
HS osc mode (PIC16C715-10)
HS osc mode (PIC16C715-20)
5
s
LP osc mode
2
TCY
Instruction Cycle Time (Note 1)
200
DC
ns
TCY = 4/FOSC
3
TosL,
TosH
External Clock in (OSC1) High
or Low Time
50
ns
XT oscillator
2.5
s
LP oscillator
10
ns
HS oscillator
4
TosR,
TosF
External Clock in (OSC1) Rise
or Fall Time
25
ns
XT oscillator
50
ns
LP oscillator
15
ns
HS oscillator
Data in "Typ" column is at 5V, 25C 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 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 PIC16C715.
OSC1
CLKOUT
Q4
Q1
Q2
Q3
Q4
Q1
1
2
3
4
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