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参数资料
| 型号： | DS4520E+TRL |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 9B 16TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 接口： | I²C |
| 输入/输出数： | 9 |
| 中断输出： | 无 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
| 包括： | EEPROM |
General Description
The DS4520 is a 9-bit nonvolatile (NV) I/O expander with
64 bytes of NV user memory controlled by an I2C-
compatible serial interface. The DS4520 offers users a
digitally programmable alternative to hardware jumpers
and mechanical switches that are being used to control
digital logic nodes. Furthermore, the digital state of each
pin can be read through the serial interface. Each I/O
pin is independently configurable. The outputs are open
drain with selectable pullups. Each output has the ability
to sink up to 12mA. 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 Input/Output Pins
64-Byte NV User Memory (EEPROM)
I2C-Compatible Serial Interface
Up to 8 Devices Can be Multidropped on the
Same I2C Bus
Open-Drain Outputs with Configurable Pullups
Outputs Capable of Sinking 12mA
Low Power Consumption
Wide Operating Voltage (2.7V to 5.5V)
Operating Temperature Range: -40°C to +85°C
DS4520
9-Bit I2C Nonvolatile
I/O Expander Plus Memory
______________________________________________ Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
I/O_0
GND
I/O_8
I/O_7
I/O_6
I/O_5
A2
SCL
SDA
TOP VIEW
I/O_1
I/O_2
A0
I/O_3
I/O_4
A1
VCC
DS4520
Pin Configuration
SCL
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
SDA
A0
A1
A2
GND
FROM
SYSTEM
CONTROLLER
FPGA
CLOCK
GENERATOR
CPU
SPEED
SELECT
4.7k
Ω
4.7k
Ω
0.1
μF
VCC
DS4520
Typical Operating Circuit
Rev 0; 6/04
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.
Add “/T&R” for tape and reel orders.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS4520E
-40°C to +85°C
16 TSSOP
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS4520E-W | 功能描述:接口-I/O扩展器 9-Bit I2C NV I/O Expander Plus Memory 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 |
| DS4520F+TRL | 制造商:Maxim Integrated Products 功能描述: |
| DS4520MRAB0 | 制造商:Thomas & Betts 功能描述:600A,NLT,4P5W,MG,520,AB0,3PY120/208 |
| DS4521FP000 | 制造商:Thomas & Betts 功能描述:400A,CON,4P5W,MG,521,3PY250V |
| DS4521MP000 | 制造商:Thomas & Betts 功能描述:400A,PLG,4P5W,MG,521,3PY250V |
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