- 您现在的位置：买卖IC网 > PDF目录10775 > X79001V20I (Intersil)IC DAC NV SELECT OUT/MEM 20TSSOP PDF资料下载
参数资料
| 型号： | X79001V20I |
| 厂商： | Intersil |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | IC DAC NV SELECT OUT/MEM 20TSSOP |
| 标准包装： | 75 |
| 设置时间： | 6µs |
| 位数： | 12 |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
| 输出数目和类型： | 1 电压，单极 |
| 采样率（每秒）： | 417k |
12
FN8147.0
March 17, 2005
VOLTAGE REFERENCES
The device includes an on-chip bandgap reference
circuit with 1.21 V nominal output voltage. This voltage is
available at pin VRef as an output.
The voltages at pins VH and VL determine the DAC
output voltage at full scale and zero scale respectively.
Full scale is when the DAC input register is FFF hex (all
ones), and zero scale is when the DAC input register is
000 hex (all zeros).
V(VH) and V(VL) can be generated on-chip and can be
independently programmed to the values indicated in
table 1. VH must always be at a higher voltage than VL.
VH must not be higher than 3.1V. VL & VH can also be
independently disabled, in which case they become
inputs to the device.
SERIAL INTERFACE
Serial Interface Conventions
The device supports the SPI interface hardware protocol.
The protocol defines any device that sends data onto the
bus as a transmitter, and the receiving device as the
receiver. The device controlling the transfer is called the
master and the device being controlled is called the
slave. The master always initiates data transfers, and
provides the clock for both transmit and receive
operations. The X79000 operates as a slave in all
applications.
The device is accessed via the SI and SCK pins, while
the output data is presented at the SO pin. Input data at
pin SI is clocked-in on the rising edge of SCK, when CS
and RDY are both LOW. Output data at pin SO is
clocked-out on the falling edge of SCK.
All commands start with a falling edge at the input pin
CS. Write operations end with a rising edge at the input
pin CS after the last bit of the data bytes being written is
clocked-in. Read operations end with a rising edge at the
input pin CS after the last bit of the data byte being read
is clocked-out.
X79000 MEMORY MAP
The X79000 contains a 512-bit array of mixed volatile
and nonvolatile memory. The array is organized as 64
bytes, and it’s logically split up into two parts, namely:
– General Purpose Memory (GPM)
– Control and Status Registers
The GPM is all nonvolatile EEPROM, located at memory
addresses 00h to 37h.
Figure 2. X79000 Memory Map
The Control and Status registers of the X79000 are used
in the test and setup of the device in a system, and
include the DAC volatile register and the DAC nonvolatile
initial value register. These registers are realized as a
combination of both volatile and nonvolatile memory.
These registers reside in the memory locations 38h
through 3Fh. The reserved bits within registers 38h
through 3Dh must be written as “0” if writing to them, and
should be ignored when reading. The reserved registers,
3Ah, 3Bh, 3Eh and 3Fh, must not be written, and their
content should be ignored.
Factory control bit settings:
38h, 39h, 3Fh = All “0”s
3Ch = 1000 0100 (84 hex)
All communication to the X79000 over the SPI bus is
conducted by sending the MSB of each byte of data first.
The memory is physically realized as one contiguous
array, organized as 8 pages of 8 bytes each.
Bit 0
Bit 7
Address
Size
8 Bytes
56 Bytes
00h
37h
38h
3Fh
Control & Status
Registers
General Purpose
Memory (GPM)
...
X79000, X79001, X79002
相关PDF资料 |
PDF描述 |
|---|---|
| B37941K5472K060 | CAP CER 4700PF 50V 10% X7R 0805 |
| X79000V20IT1 | IC DAC NV SELECT OUT/MEM 20TSSOP |
| VE-J6B-MW-F1 | CONVERTER MOD DC/DC 95V 100W |
| B37931K9223K060 | CAP CER 0.022UF 16V 10% X7R 0603 |
| X79000V20I | IC DAC NV SELECT OUT/MEM 20TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| X79001V20IT1 | 功能描述:IC DAC NV SELECT OUT/MEM 20TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率（每秒）:* |
| X79002 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:NV DAC with Selectable Output Range and Memory |
| X79002V20I | 功能描述:IC DAC NV SELECT OUT/MEM 20TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率（每秒）:* |
| X79002V20IT1 | 功能描述:IC DAC NV SELECT OUT/MEM 20TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率（每秒）:* |
| X790A | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Medium current, high performance, low voltage PNP transistor |
发布紧急采购，3分钟左右您将得到回复。