參數(shù)資料
型號: AT89LP428-20AU
廠商: Atmel
文件頁數(shù): 108/149頁
文件大?。?/td> 0K
描述: MCU 8051 4K FLASH SPI 32TQFP
產(chǎn)品培訓模塊: MCU Product Line Introduction
標準包裝: 250
系列: 89LP
核心處理器: 8051
芯體尺寸: 8-位
速度: 20MHz
連通性: SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 30
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
EEPROM 大小: 512 x 8
RAM 容量: 768 x 8
電壓 - 電源 (Vcc/Vdd): 2.4 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 32-TQFP
包裝: 托盤
61
3654A–MICRO–8/09
AT89LP428/828
Figure 12-8. Timer 2 in Clock-out Mode
13. Compare/Capture Array
The AT89LP428/828 includes a four channel Compare/Capture Array (CCA) that performs a
variety of timing operations including input event capture, output compare waveform generation
and pulse width modulation (PWM). Timer 2 serves as the time base for the four 16-bit com-
pare/capture modules. The CCA has the following features:
Four 16-bit Compare/Capture channels
Common time base provided by Timer 2
Selectable external and internal capture events including pin change, timer overflow and
comparator output change
Symmetric/Asymmetric PWM with selectable polarity
Multi-phasic PWM outputs
One interrupt flag per channel with a common interrupt vector
The block diagram of the CCA is given in Figure 13-1. Each channel consists of an 8-bit control
register and a 16-bit data register. The channel registers are not directly accessible. The CCA
address register T2CCA provides an index into the array. The control, data low and data high
bytes of the currently indexed channel are accessed through the T2CCC, T2CCL and T2CCH
registers, respectively.
Each channel can be individually configured for capture or compare mode. Capture mode is the
default setting. During capture mode, the current value of the time base is copied into the chan-
nel’s data register when the specified external or internal event occurs. An interrupt flag is set at
the same time and the time base may be optionally cleared. To enable compare mode, the
CCMx bit in the channel’s control register (CCCx) should be set to 1. In compare mode an inter-
rupt flag is set and an output pin is optionally toggled when the value of the time base matches
the value of the channel’s data register. The time base may also be optionally cleared on a com-
pare match.
OSC
T2EX PIN
T2 PIN
TR2
Timer 2
Interrupt
RCAP2H
RCAP2L
TL2
TH2
C/T2
EXF2
Transition
Detector
EXEN2
÷TPS
÷2
T2OE
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參數(shù)描述
AT89LP428-20JU 功能描述:8位微控制器 -MCU SingleCycle 8051 4K ISP Flash 2.4V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
AT89LP428-20MH 功能描述:8位微控制器 -MCU SingleCycle 8051 4K ISP Flash 2.4V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
AT89LP428-20PU 功能描述:8位微控制器 -MCU SingleCycle 8051 4K ISP Flash 2.4V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
AT89LP51-20AU 功能描述:8位微控制器 -MCU Single Cycle 8051 4K ISP FL RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
AT89LP51-20JU 功能描述:8位微控制器 -MCU Single Cycle 8051 4K ISP FL RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT