参数资料
| 型号： | MIC74BQS TR |
| 厂商： | Micrel Inc |
| 文件页数： | 16/18页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16QSOP |
| 标准包装： | 2,500 |
| 接口： | I²C，SM 总线 |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC74BQSTR MIC74BQSTR-ND |
Micrel, Inc.
MIC74
October 2006
7
M9999-101006
Functional Diagram
GND
VDD
Pn (typical I/O port)
S
Q
QR
EDGE
DETECT
INTn
IMn
STATUSn
STATUS_READn
DATAn
(INPUT)
OUT_CFGn
DIRn
DATAn
(OUTPUT)
Typical I/O Port (Fan Speed Control Logic Not Shown)
Functional Description
Pin Descriptions
VDD
Power supply input connection. See “Operating Ratings.”
GND
Ground or return connection for all MIC74 functions.
CLK
An CLK signal is provided by the host (master) and is
common to all devices on the bus. The CLK signal
controls all transactions in both directions on the bus and
is applied to each MIC74 at the CLK pin.
DATA
Serial data is bidirectional and is common to all devices
on the bus. The MIC74’s DATA output is open-drain.
The DATA line requires one external pull-up resistor or
current source per system that can be located anywhere
along the line.
A2, A1, A0
An MIC74 responds to its own unique address which is
assigned using the A0–A2 pins. A0–A2 set the three
LSBs (least significant bits) of the MIC74’s 7-bit slave
address. The three address pins allow eight unique
MIC74 addresses in a system. When the MIC74’s
address matches an address received in the serial bit
stream, communication is initiated.
A2, A1 and A0 should be connected to GND or VDD.
The state of these pins is sampled only once at device
power-on. New slave addresses are not accepted unless
the MIC74 is powered off then on.
Inputs
MIC74 Slave Address
A2
A1
A0
Bianary
Hex
0
010 0000b
20h
0
1
010 0001b
21h
0
1
0
010 0010b
22h
0
1
010 0011b
23h
1
0
010 0100b
24h
1
0
1
010 0101b
25h
1
0
010 0110b
26h
1
010 0111b
27h
Table 1. MIC74 Address Configuration
Alert Response Address
The MIC74 also responds to the ARA (Alert Response
Address). The ARA is used by the master (host) to
request the address of a slave that has provided an
interrupt to the master via the /ALERT line.
The ARA is a single address (0001 100) common to all
slaves and is described in more detail under “Interrupt
Generation” with related information under “/ALERT.”
Also see Figure 7.
相关PDF资料 |
PDF描述 |
|---|---|
| MICRF302YML TR | IC ENCODER PAR QWIKRADIO 10-MLF |
| MK10DN512ZVLL10 | IC ARM CORTEX MCU 512KB 100LQFP |
| MK10DX128VFM5 | IC ARM CORTEX MCU 128KB 32QFN |
| MK20DN512ZVLL10 | IC ARM CORTEX MCU 512KB 100LQFP |
| MK20DN512ZVLQ10 | IC ARM CORTEX MCU 512KB 144LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC74BWM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC74YQS | 功能描述:接口-I/O扩展器 2-Wire Serial I/O Expander & Fan Controller, QSOP-16 - Lead Free RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MIC74YQS TR | 功能描述:接口-I/O扩展器 2-Wire Serial I/O Expander & Fan Controller, QSOP-17 - Lead Free RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MIC79050 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Simple Lithium-Ion Battery Charger Preliminary Information |
| MIC79050_05 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Simple Lithium-Ion Battery Charger |
发布紧急采购，3分钟左右您将得到回复。