參數(shù)資料
型號(hào)： 7549
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù)： 40/73頁(yè)
文件大小： 1272K
代理商： 7549
Rev.2.00
REJ03B0202-0200
Mar 05, 2007
Page 40 of 70
7549 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Notes on Watchdog Timer
(1) The watchdog timer operates in wait mode. To prevent
underflow, write to the watchdog timer control register.
The watchdog timer stops in stop mode, but starts counting
at the same time as exiting stop mode. After exiting stop
mode, it continues counting during oscillation stabilization
time. To prevent underflow during the period, the watchdog
timer H count source selection bit (bit 7) in the watchdog
timer control register (address 0039
16
) should be set to “0”
before executing the STP instruction.
Note that the watchdog timer continues counting even if the
STP instruction is executed in the following two conditions:
1
Stopping the low-speed on-chip oscillator: Disabled (bit
4 in FSROM2)
Source clock of the watchdog timer: Low-speed on-chip
oscillator/16 (bit 0 in FSROM2)
2
Stopping the low-speed on-chip oscillator: Disabled (bit
4 in FSROM2)
Source clock of the watchdog timer:
φ
SOURCE (bit 0 in
FSROM2)
φ
SOURCE: Low-speed on-chip oscillator (bits 5 and 4 in
CLKM)
(2) STP instruction function selection bit
The function of the STP instruction can be selected by the bit
2 in FSROM2. This bit cannot be used for rewriting by
executing the STP instruction.
When this bit is set to “0”, stop mode is entered by
executing the STP instruction.
When this bit is set to “1”, internal reset occurs by
executing the STP instruction.
相關(guān)PDF資料
PDF描述
75HQ SCHOTTKY RECTIFIER
75HQ030 SCHOTTKY RECTIFIER
75HQ035 SCHOTTKY RECTIFIER
75HQ040 SCHOTTKY RECTIFIER
75HQ045 SCHOTTKY RECTIFIER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
7549_0710 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7549_09 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7-5-4905 功能描述:3M 4905 VHB TAPE SPECIALTY TAPES 制造商:3m (tc) 系列:VHB?? 4905 零件狀態(tài):在售 厚度 - 粘合劑:- 厚度 - 底布，載體:- 標(biāo)準(zhǔn)包裝:1
754905-1 功能描述:PIN ATT/ROLL AUTO IV 制造商:te connectivity amp connectors 系列:* 零件狀態(tài):有效 標(biāo)準(zhǔn)包裝:1
7-5-4910 功能描述:3M 4910 VHB TAPE SPECIALTY TAPES 制造商:3m (tc) 系列:VHB?? 4910 零件狀態(tài):在售 底布，載體:丙烯酸泡棉 厚度 - 粘合劑:- 厚度 - 底布，載體:- 標(biāo)準(zhǔn)包裝:1
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*