參數(shù)資料
型號： DS4550E+
廠商： Maxim Integrated Products
文件頁數(shù)： 1/18頁
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 9B 20TSSOP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 74
接口： I²C，JTAG
輸入/輸出數(shù)： 9
中斷輸出： 無
頻率 - 時鐘： 400kHz
電源電壓： 2.7 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）
供應商設備封裝： 20-TSSOP
包裝： 管件
包括： EEPROM
General Description
The DS4550 is a 9-bit, nonvolatile (NV) I/O expander
with 64 bytes of NV user memory controlled by either
an I2C-compatible serial interface or an IEEE 1149.1
JTAG port. The DS4550 offers a digitally programmable
alternative to hardware jumpers and mechanical
switches that are being used to control digital logic
nodes. Each I/O pin is independently configurable. The
outputs are open drain with selectable pullups. Each
output has the ability to sink up to 16mA, and since the
device is NV, it powers up in the desired state allowing
it to control digital logic inputs immediately on power-
up without having to wait for the host CPU to initiate
control.
Applications
RAM-Based FPGA Bank Switching for Multiple
Profiles
Selecting Between Boot Flash
Setting ASIC Configurations/Profiles
Servers
Network Storage
Routers
Telecom Equipment
PC Peripherals
Features
Programmable Replacement for Mechanical
Jumpers and Switches
Nine NV Inputs/Outputs
64-Byte NV User Memory (EEPROM)
I2C-Compatible Serial Interface and JTAG
Up to 8 Devices can be Multidropped on the Same
I2C Bus
IEEE 1149.1 Boundary Scan Compliant
Open-Drain Outputs with Configurable Pullups
Outputs Capable of Sinking 16mA
Low Power Consumption
Wide Operating Voltage Range: 2.7V to 5.5V
Operating Temperature Range: -40°C to +85°C
DS4550
I2C and JTAG Nonvolatile 9-Bit I/O
Expander Plus Memory
______________________________________________ Maxim Integrated Products
1
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
GND
I/O_8
I/O_7
I/O_6
I/O_3
I/O_2
I/O_1
I/O_0
TOP VIEW
I/O_5
A2
TDO
TDI
TCK
A1
A0
I/O_4
12
11
9
10
SCL
SDA
VCC
TMS
TSSOP
DS4550
VCC
FPGA
CLOCK
GENERATOR
CPU SPEED
SELECT
A0
A1
A2
GND
0.1
μF
VCC
4.7k
I2C
INTERFACE
JTAG
INTERFACE
DS4550
SCL
SDA
TCK
TMS
TDI
TDO
I/O_0
I/O_1
I/O_2
I/O_3
I/O_4
I/O_5
I/O_6
I/O_7
I/O_8
Pin Configuration
Typical Operating Circuit
Rev 0; 9/04
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS4550E
-40
°C to +85°C
20 TSSOP
Add “/T&R” for tape and reel orders.
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相關代理商/技術參數(shù)
參數(shù)描述
DS4550E+ 功能描述:接口-I/O擴展器 9-Bit I2C/JTAG NV GPIO RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
DS4550E+T&R 制造商:Maxim Integrated Products 功能描述:I2C AND JTAG NONVOLATILE 9-BIT I/O 20TSSOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC I/O EXPANDER I2C 9B 20TSSOP
DS4550E+T&R 功能描述:接口-I/O擴展器 9-Bit I2C/JTAG NV GPIO RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
DS456 制造商:Miyama Electric 功能描述:
DS4560 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:12V Hot-Plug Switch
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