參數(shù)資料
型號: ATTINY2313A-SUR
廠商: Atmel
文件頁數(shù): 38/172頁
文件大?。?/td> 0K
描述: MCU AVR 2KB FLASH 20MHZ 20SOIC
產(chǎn)品培訓(xùn)模塊: tinyAVR Introduction
標(biāo)準(zhǔn)包裝: 1,000
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 18
程序存儲器容量: 2KB(1K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 128 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 帶卷 (TR)
其它名稱: ATTINY2313A-SUR-ND
PIC16F870/871
DS30569B-page 130
2003 Microchip Technology Inc.
FIGURE 14-8:
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
TABLE 14-4:
TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
40*
Tt0H
T0CKI High Pulse Width
No Prescaler
0.5 TCY + 20
ns
Must also meet
parameter 42
With Prescaler
10
ns
41*
Tt0L
T0CKI Low Pulse Width
No Prescaler
0.5 TCY + 20
ns
Must also meet
parameter 42
With Prescaler
10
ns
42*
Tt0P
T0CKI Period
No Prescaler
TCY + 40
ns
With Prescaler
Greater of:
20 or TCY + 40
N
ns
N = prescale value
(2, 4, ..., 256)
45*
Tt1H
T1CKI High Time
Synchronous, Prescaler = 1
0.5 TCY + 20
ns
Must also meet
parameter 47
Synchronous,
Prescaler = 2,4,8
Standard(F)15
ns
Extended(LF)25
ns
Asynchronous
Standard(F)30
ns
Extended(LF)50
ns
46*
Tt1L
T1CKI Low Time
Synchronous, Prescaler = 1
0.5 TCY + 20
ns
Must also meet
parameter 47
Synchronous,
Prescaler = 2,4,8
Standard(F)15
ns
Extended(LF)25
ns
Asynchronous
Standard(F)30
ns
Extended(LF)50
ns
47*
Tt1P
T1CKI input period Synchronous
Standard(F)
Greater of:
30 or TCY + 40
N
ns
N = prescale value
(1, 2, 4, 8)
Extended(LF)
Greater of:
50 or TCY + 40
N
N = prescale value
(1, 2, 4, 8)
Asynchronous
Standard(F)60
ns
Extended(LF)
100
ns
Ft1
Timer1 oscillator input frequency range
(oscillator enabled by setting bit T1OSCEN)
DC
200
kHz
48
TCKEZtmr1 Delay from external clock edge to timer increment
2 TOSC
—7 TOSC
*
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: Refer to Figure 14-3 for load conditions.
46
47
45
48
41
42
40
RA4/T0CKI
RC0/T1OSO/T1CKI
TMR0 or
TMR1
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