參數(shù)資料
型號: X9268TS24
廠商: Intersil
文件頁數(shù): 19/22頁
文件大?。?/td> 0K
描述: IC DCP DUAL 100K 256TP 24SOIC
標準包裝: 30
系列: XDCP™
接片: 256
電阻(歐姆): 100k
電路數(shù): 2
溫度系數(shù): 標準值 ±300 ppm/°C
存儲器類型: 非易失
接口: I²C(設(shè)備位址)
電源電壓: 4.5 V ~ 5.5 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
供應商設(shè)備封裝: 24-SOIC
包裝: 管件
6
FN8172.4
August 29, 2006
PRINCIPLES OF OPERATION
The X9268 is a integrated microcircuit incorporating
four resistor arrays and their associated registers and
counters and the serial interface logic providing direct
communication between the host and the digitally
controlled potentiometers. This section provides detail
description of the following:
– Resistor Array Description
– Serial Interface Description
– Instruction and Register Description.
Array Description
The X9268 is comprised of a resistor array (See
Figure 1). Each array contains 255 discrete resistive
segments that are connected in series. The physical
ends of each array are equivalent to the fixed
terminals of a mechanical potentiometer (RH and RL
inputs).
At both ends of each array and between each resistor
segment is a CMOS switch connected to the wiper
(RW) output. Within each individual array only one
switch may be turned on at a time.
These switches are controlled by a Wiper Counter
Register (WCR). The 8-bits of the WCR (WCR[7:0])
are decoded to select, and enable, one of 256
switches (See Table 1).
The WCR may be written directly. These Data
Registers can the WCR can be read and written by the
host system.
Power-up and Down Requirements.
At all times, the voltages on the potentiometer pins
must be less than V+ and more than V-. During power-
up and power-down, VCC, V+, and V- must reach their
final values within 1msecs of each other. The VCC
ramp rate spec is always in effect.
Figure 1. Detailed Potentiometer Block Diagram
SERIAL DATA PATH
FROM INTERFACE
CIRCUITRY
REGISTER 0
REGISTER 1
REGISTER 2
REGISTER 3
SERIAL
BUS
INPUT
PARALLEL
BUS
INPUT
COUNTER
REGISTER
INC/DEC
LOGIC
UP/DN
CLK
MODIFIED SCL
UP/DN
RH
RL
RW
8
C
O
U
N
T
E
R
D
E
C
O
D
E
IF WCR = 00[H] THEN RW = RL
IF WCR = FF[H] THEN RW = RH
WIPER
(WCR)
One of Two Potentiometers
(DR0)
(DR1)
(DR2)
(DR3)
X9268
相關(guān)PDF資料
PDF描述
X9261US24 IC DCP DUAL 50K 256TP 24SOIC
MS3450W22-19PY CONN RCPT 14POS WALL MNT W/PINS
X9261TS24 IC DCP DUAL 100K 256TP 24SOIC
MS3450W22-19PX CONN RCPT 14POS WALL MNT W/PINS
X9260US24 IC DCP DUAL 50K 256TP 24SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X9268TS24-2.7 功能描述:IC XDCP DUAL 256TAP 100K 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標準包裝:2,500 系列:XDCP™ 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C(設(shè)備位址) 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR)
X9268TS24-2.7T1 功能描述:IC XDCP DUAL 256TAP 100K 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標準包裝:2,500 系列:XDCP™ 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C(設(shè)備位址) 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR)
X9268TS24I 功能描述:IC XDCP DUAL 256TAP 100K 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標準包裝:2,500 系列:XDCP™ 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C(設(shè)備位址) 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR)
X9268TS24I-2.7 功能描述:IC XDCP DUAL 256TAP 100K 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標準包裝:2,500 系列:XDCP™ 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C(設(shè)備位址) 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR)
X9268TS24I-2.7T1 功能描述:IC XDCP DUAL 256TAP 100K 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標準包裝:2,500 系列:XDCP™ 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C(設(shè)備位址) 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR)