參數(shù)資料
型號(hào)： M44C090-H
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Low-Current Microcontroller for Wireless Communication
中文描述： 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封裝： SSO-20
文件頁(yè)數(shù)： 12/63頁(yè)
文件大?。?/td> 503K
代理商： M44C090-H
M44C890
M44C090
Rev.A4, 14-Dec-01
12 (63)
Reset
timer
VDD
CL
Power
–
on
reset
Internal
reset
res
CL=SYSCL/4
VDD
VSS
Brown
–
out
detection
VDD
VSS
Watch
–
dog
CWD
res
Ext. clock
supervisor
ExIn
Pull-up
NRST
13752
Figure 9. Reset configuration
2.3.1
Power-on Reset and Brown-out
Detection
The M44C090 / M44C890 has a fully integrated pow-
er-on reset and brown-out detection circuitry. For reset
generation no external components are needed .
These circuits ensure that the core is held in the reset state
until the minimum operating supply voltage has been
reached. A reset condition will also be generated should
the supply voltage drop momentarily below the minimum
operating level except when a power down mode is
activated (the core is in SLEEP mode and the peripheral
clock is stopped). In this power-down mode the brown-
out detection is disabled.
Two values for the brown-out voltage threshold are
programmable via the BOT-bit in the SC-register.
VDD
CPU
Reset
t
BOT =
’
1
’
2.0 V
1.7 V
CPU
Reset
BOT =
’
0
’
td
td
td= 1.5 ms (typically)
td
13753
BOT
= 1, low brown-out voltage threshold. (1.7 V) is reset value.
BOT = 0, high brown-out voltage threshold (1.9 V).
Figure 10. Brown-out detection
相關(guān)PDF資料
PDF描述
M44C890 Low-Current Microcontroller for Wireless Communication
M44C890-H Low-Current Microcontroller for Wireless Communication
M4N25 6-Pin DIP Optoisolators Transistor Output
M4N26 6-Pin DIP Optoisolators Transistor Output
M4N37 Header, Vertical Friction Lock; No. of Contacts:3; Pitch Spacing:2.54mm; No. of Rows:1; Gender:Header; Series:6410; Body Material:PA Polyamide (Nylon); Current Rating:4A; Voltage Rating:250V RoHS Compliant: Yes
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M44C890 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication
M44C890-H 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication
M44S05K4F1 功能描述:汽車連接器 MX44 Terminals RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類型: 觸點(diǎn)電鍍:Nickel
M44T332538880MHZ 制造商:MEC 功能描述:
M44T3338880MHZ 制造商:MEC 功能描述:
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(xiě)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

*
*
*