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參數(shù)資料
| 型號： | DS4520E |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 9-Bit I2C Nonvolatile I/O Expander Plus Memory |
| 中文描述： | 64 X 8 EEPROM, 9 I/O, PIA-GENERAL PURPOSE, PDSO16 |
| 封裝： | TSSOP-16 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 972K |
| 代理商： | DS4520E |
General Description
The DS4520 is a 9-bit nonvolatile (NV) I/O expander with
64 bytes of NV user memory controlled by an I
2
C
TM
-
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)
I
2
C-Compatible Serial Interface
Up to 8 Devices Can be Multidropped on the
Same I
2
C 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
D
9-Bit I
2
C Nonvolatile
I/O Expander Plus Memory
______________________________________________
Maxim Integrated Products
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.
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
V
CC
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
4.7k
0.1
μ
F
V
CC
V
CC
DS4520
Typical Operating Circuit
Rev 0; 6/04
Add “/T&R” for tape and reel orders.
Ordering Information
I
2
C is a trademark of Philips Corp. Purchase of I
2
C components from Maxim Integrated Products, Inc., or one of its sublicensed
Associated Companies, conveys a license under the Philips I
2
C Patent Rights to use these components in an I
2
that the system conforms to the I
2
C Standard Specification as defined by Philips.
PART
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
DS4520E
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS4520E/T&R | 制造商:DALLAS/MAXIM 功能描述: |
| DS4520E+ | 功能描述:接口-I/O擴展器 9-Bit I2C NV I/O Expander Plus Memory 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 |
| DS4520E+TRL | 功能描述:接口-I/O擴展器 9-Bit I2C NV I/O Expander Plus Memory 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 |
| DS4520E-TRL | 制造商:Maxim Integrated Products 功能描述:I2C NONVOLATILE I/O EXPANDER PLUS MEMORY 16TSSOP - Tape and Reel |
| DS4520E-W | 功能描述:接口-I/O擴展器 9-Bit I2C NV I/O Expander Plus Memory 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 |
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