參數(shù)資料
型號(hào): MCHLC705KJ1CDWE
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 90/108頁(yè)
文件大?。?/td> 0K
描述: IC MCU 8BIT 64 BYTES RAM 16-SOIC
標(biāo)準(zhǔn)包裝: 47
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 4MHz
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 10
程序存儲(chǔ)器容量: 1.2KB(1.2K x 8)
程序存儲(chǔ)器類型: OTP
RAM 容量: 64 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-SOIC(0.295",7.50mm 寬)
包裝: 管件
Multifunction Timer Module
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
82
Freescale Semiconductor
RT1 and RT0 — Real-Time Interrupt Select Bits
These read/write bits select one of four real-time interrupt rates, as shown in Table 9-1. Because the
selected RTI output drives the COP watchdog, changing the real-time interrupt rate also changes the
counting rate of the COP watchdog. Reset sets RT1 and RT0.
NOTE
Changing RT1 and RT0 when a COP timeout is imminent can cause a
real-time interrupt request to be missed or an additional real-time interrupt
request to be generated. To prevent this occurrence, clear the COP timer
before changing RT1 and RT0.
9.5.2 Timer Counter Register
A 15-stage ripple counter is the core of the timer. The value of the first eight stages is readable at any
time from the read-only timer counter register shown in Figure 9-4.
Power-on clears the entire counter chain and the internal clock begins clocking the counter. After 4064
cycles (or 16 cycles if the SOSCD bit in the mask option register is set), the power-on reset circuit is
released, clearing the counter again and allowing the MCU to come out of reset.
A timer overflow function at the eighth counter stage allows a timer interrupt every 1024 internal clock
cycles.
Table 9-1. Real-Time Interrupt Rate Selection
RT1:RT0
RTI Rate
RTI Period
(fOP = 2 MHz)
COP Timeout Period
(–0/+1 RTI Period)
Minimum COP Timeout
Period
(fOP = 2 MHz)
00
fOP ÷ 2
14
8.2 ms
8 x RTI Period
65.5 ms
01
fOP ÷ 2
15
16.4 ms
8 x RTI Period
131.1 ms
10
fOP ÷ 2
16
32.8 ms
8 x RTI Period
262.1 ms
11
fOP ÷ 2
17
65.5 ms
8 x RTI Period
524.3 ms
Address:
$0009
Bit 7
654321
Bit 0
Read:
TCR7
TCR6
TCR5
TCR4
TCR3
TCR2
TCR1
TCR0
Write:
Reset:
00000000
= Unimplemented
Figure 9-4. Timer Counter Register (TCR)
相關(guān)PDF資料
PDF描述
EFM32GG230F1024 IC MCU 32BIT 1024KB FLASH 64QFN
VJ2225A153JBAAT4X CAP CER 0.015UF 50V 5% NP0 2225
VE-B6W-CU-B1 CONVERTER MOD DC/DC 5.5V 200W
C8051F005-GQR IC 8051 MCU 32K FLASH 64TQFP TAP
EFM32LG940F256 IC MCU 32BIT 256KB FLASH 64QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCHLC908QT1CPE 功能描述:8位微控制器 -MCU LO V-1.5K FLASH W/O ADC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
MCHLC908QT1PE 功能描述:8位微控制器 -MCU 1.5K FLASH W/O ADC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
MCHLC908QT2CPE 功能描述:8位微控制器 -MCU LO V-1.5K FLASH W/ADC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
MCHLC908QT2DWE 功能描述:8位微控制器 -MCU LO V-1.5K FLASH W/ADC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
MCHLC908QT2PE 功能描述:8位微控制器 -MCU LO V-1.5K FLASH W/ADC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT