參數(shù)資料
型號(hào)： M44C090-H
廠商： ATMEL CORP
元件分類(lèi)： 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)： 50/63頁(yè)
文件大?。?/td> 503K
代理商： M44C090-H
M44C890
M44C090
Rev.A4, 14-Dec-01
50 (63)
4
M44C890
The M44C890 is a multi-chip product which offers a
combination of a MARC4-based microcontroller and a
serial EEPROM data memory in a single package. As
microcontroller the M44C090 is used and as serial
EEPROM the U505M. Two internal lines can be used as
chip-to-chip link in a single package. The maximum
internal data communication frequency between the
M44C090 and the U505M over the chip link (MCL_SC
and MCL_SD) is f
SC_MCL
= 500 kHZ.
The microcontroller and the EEPROM portions of this
multi-chip device are equivalent to their respective
individual component chips, except for the electrical
specification.
Internal 2-wire multi-chip link
Two additional on-chip pads (MCL_SC and MCL_SD)
for the SC and the SD line can be used as chip-to-chip link
for multi-chip applications. These pads can be activated
by setting the MCL-bit in the SISC-register.
SCL
SDA
MCL_SC
MCL_SD
U505M
M44C090
V
DD
BP40/SC
BP43/SD
Multi chip link
13835
V
SS
Figure 59. Link between M44C090 and U505M
4.1
U505M EEPROM
The U505M is a 512-bit EEPROM internally organized
32 x 16 bit. The programming voltage as well as the write-
cycle timing is generated on-chip. The U505M features
a serial interface allowing operation on a simple two-wire
bus with an I
2
C-compatible protocol. Its low power con-
sumption makes it well suited for battery applications.
16
–
bit read/write buffer
Address
control
8
–
bit data register
EEPROM
32 x 16
HV
–
generator
Timing control
Mode
control
I/O
control
SCL
V
DD
V
SS
SDA
13883
Figure 60. Block diagram EEPROM
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(chēng):ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication
M44C890-H 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication
M44S05K4F1 功能描述:汽車(chē)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(lèi)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

*
*
*