收藏本站
参数资料
型号： M34509G4FP
元件分类： 微控制器/微处理器
英文描述： 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
封装： 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24
文件页数： 67/145页
文件大小： 1060K
代理商： M34509G4FP
Rev.1.03
2009.07.27
page 26 of 140
REJ03B0147-0103
4509 Group
TIMERS
The 4509 Group has the following timers.
Programmable timer
The programmable timer has a reload register and enables the
frequency dividing ratio to be set. It is decremented from a setting
value n. When it underflows (count to n + 1), a timer interrupt re-
quest flag is set to “1,” new data is loaded from the reload register,
and count continues (auto-reload function).
Fixed dividing frequency timer
The fixed dividing frequency timer has the fixed frequency dividing
ratio (n). An interrupt request flag is set to “1” after every n count of
a count pulse.
Fig. 21 Auto-reload function
Count source
Instruction clock (INSTCK)
PWM2 signal (PWMOD2)
Prescaler output (ORCLK)
CNTR1 input
On-chip oscillator clock (f(RING))
Timer 1 underflow (T1UDF)
Prescaler output (ORCLK)
CNTR0 input
System clock (STCK)
Instruction clock (INSTCK)
Structure
8-bit programmable
binary down counter
8-bit programmable
binary down counter
(link to INT input)
(with PWM output function)
8-bit programmable
binary down counter
(INT input period count
function)
(with PWM output function)
16-bit fixed dividing
frequency
Circuit
Prescaler
Timer 1
Timer 2
Watchdog
timer
Use of output signal
Timer 1 and 2 count sources
Timer 2 count source
CNTR0 output
Timer 1 interrupt
Timer 1 count source
CNTR1 output
Timer 2 interrupt
System reset (counting twice)
Decision of flag WDF1
Frequency
dividing ratio
1 to 256
65536
Control
register
PA
W1
W5
W6
W2
W5
W6
-
The 4509 Group timer consists of the following circuits.
Prescaler : 8-bit programmable timer
Timer 1 : 8-bit programmable timer
Timer 2 : 8-bit programmable timer
(Timers 1 and 2 have the interrupt function, respectively)
16-bit timer
Prescaler and timers 1 and 2 can be controlled with the timer control
registers PA, W1, W2 , W5 and W6. The 16-bit timer is a free counter
which is not controlled with the control register.
Each function is described below.
Table 9 Function related timers
FF16
n
0016
n : Counter initial value
Count starts
Reload
1st underflow
2nd underflow
n+1 count
Time
An interrupt occurs or
a skip instruction is executed.
Timer interrupt
request flag
T
h
e
c
o
n
te
n
ts
o
f
c
o
u
n
te
r
“1”
“0”
相关PDF资料
PDF描述
M34509G4HFP 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
M34509G4-XXXFP 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
M34509G4H-XXXFP 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
M34510M4A-XXXSP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP32
M34510M2A-XXXFP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO36
相关代理商/技术参数
参数描述
M34509G4HFP 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34509G4H-XXXFP 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34509G4-XXXFP 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34509T2-CPE 功能描述:DEV TOOL COMPACT EMULATOR: 4508/ RoHS:否 类别:编程器，开发系统 >> 内电路编程器、仿真器以及调试器 系列:- 产品变化通告:Development Systems Discontinuation 19/Jul/2010 标准包装:1 系列:* 类型:* 适用于相关产品:* 所含物品:*
M34512M2 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*