參數(shù)資料
型號(hào)： M44C890
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
文件頁數(shù)： 24/63頁
文件大小： 503K
代理商： M44C890
M44C890
M44C090
Rev.A4, 14-Dec-01
24 (63)
3.2.3
The bidirectional Port 4 is both a bitwise configurable I/O
port and provides the external pins for the Timer 2, SSI
and the voltage monitor input (VMI). As a normal port,
it performs in exactly the same way as bidirectional Port 2
(see figure 26). Two additional multiplexes allow data
and port direction control to be passed over to other inter-
nal modules (Timer 2, VM or SSI). The I/O-pins for SC
Bidirectional Port 4
and SD line have an additional mode to generate an SSI
–
interrupt.
All four Port 4 pins can be individually switched by the
P4CR
–
register . Figure 26 shows the internal interfaces to
bidirectional Port 4.
Master reset
Q
VDD
VDD
BPxy
Mask options
*
*
PxDATy
S
I/O Bus
D
I/O Bus
I/O Bus
*
*
Pull-up
Pull-down
PxCRy
SQ
D
PxMRy
POut
(Direction)
PDir
Intx
*
*
PIn
VDD
Static
Pull-up
Static
Pull-down
Switched
Switched
Figure 25. Bidirectional Port 4
Port 4 Data Register (P4DAT)
áááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
Bit 3
P4DAT3
Bit 2
P4DAT2
Bit 1
P4DAT1
Bit 0
P4DAT0
Reset value: 1111b
P4DAT
Port 4 Control Register (P4CR) Byte Write
Auxiliary register address:
’
4
’
hex
ááááááááááááááááááááááá
ááááááááááááááááááááááá
ááááááááááááááááááááááá
ááááááááááááááááááááááá
áááááááááááááááááááááááááááááááá
ááááááááá
ááááááááá
ááááááááá
Reset value: 1111b
ááááááááá
ááááááááá
Reset value: 1111b
P4xM2, P4xM1
–
Port 4x Interrupt mode/direction code
相關(guān)PDF資料
PDF描述
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
M50195P DIGITAL ECHO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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:
M450 PSA2MCS100- 制造商:TR FASTENINGS 功能描述:SCREW SLT PAN S/S A2 M4X50 制造商:TR FASTENINGS 功能描述:SCREW, SLT, PAN, S/S, A2, M4X50 制造商:TR FASTENINGS 功能描述:SCREW, SLT, PAN, S/S, A2, M4X50; Thread Size - Metric:M4; Screw Length:50mm; Fastener Material:Stainless Steel; Screw Head Style:Slotted Pan; SVHC:No SVHC (19-Dec-2012); Driver Type:Slotted; External Length / Height:50mm; ;RoHS Compliant: Yes
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。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。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

我的聯(lián)系方式

*
*
*