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參數(shù)資料
| 型號： | X9448YV24I |
| 廠商： | INTERSIL CORP |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Mixed Signal with 2-Wire Interface |
| 中文描述： | 2.5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO24 |
| 封裝： | PLASTIC, TSSOP-24 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 127K |
| 代理商： | X9448YV24I |
X9448
Characteristics subject to change without notice.
8 of 20
REV 1.0 6/21/00
www.xicor.com
Increment/Decrement Wiper Counter Register
Enable Increment/decrement of the WCR pointed to by P
1
-P
0
.
P1 P0: 00 or 01 only.
S
T
A
R
T
device type
identifier
device
addresses
S
A
C
K
instruction
opcode
WCR
addresses
S
A
C
K
increment/decrement
(sent by master on SDA)
S
T
O
P
0
1
0
1
A
3
A
2
A
1
A
0
0
0
1
0
0
0
P
1
P
0
I/
D
I/
D
.
.
.
.
I/
D
I/
D
REGISTERS OPERATION
Both XDCP potentiometers and voltage comparators
share the serial interface and share a common archi-
tecture. Each potentiometer and voltage comparator is
associated with wiper counter and analog control reg-
isters and eight data registers. A detailed discussion of
the register organization and array operation follows.
Wiper Counter (WCR) and Analog Control
Registers (ACR)
The X9448 contains two wiper counter registers one
for each XDCP potentiometer and two analog control
registers, one for each of the two voltage comparators.
The wiper counter register is equivalent to a serial-in,
parallel-out counter with its outputs decoded to select
one of sixty-four switches along its resistor array. The
contents of the wiper counter register and analog con-
trol register can be altered in four ways: it may be writ-
ten directly by the host via the Write WCR instruction
(serial load); it may be written indirectly by transferring
the contents of one of four associated data registers
(DR) via the XFR data register instruction (parallel
load); it can be modified one step at a time by the
increment/decrement instruction (WCR only). Finally, it
is loaded with the contents of its data register zero (R0)
upon power-up.
The wiper counter and analog control register are vola-
tile registers; that is, their contents are lost when the
X9448 is powered-down. Although the registers are
automatically loaded with the value in R0 upon power-
up, it should be noted this may be different from the
value present at power-down.
Programming the ACR is similar to the WCR. However,
the 6 bits in the WCR positions the wiper in the resistor
array while 3 bits in the ACR control the comparator
and its output.
Data Registers (DR)
Each potentiometer and each voltage comparator has
four nonvolatile data registers (DR). These can be read
or written directly by the host and data can be trans-
ferred between any of the four data registers and the
WCR or ACR. It should be noted all operations chang-
ing data in one of these registers is a nonvolatile oper-
ation and will take a maximum of 10ms.
If the application does not require storage of multiple
settings for the potentiometer or comparator, these reg-
isters can be used as regular memory locations that
could store system parameters or user preference data.
REGISTER DESCRIPTIONS
Wiper Counter Register (WCR)
WP0-WP5 identify wiper position.
Analog Control Register (ACR)
Shutdown
“1”
indicates power is connected to the voltage
comparator.
“0”
indicates power is not connected to the voltage
comparator.
Enable
“1”
indicates the output buffer of the voltage com-
parator is enabled.
“0”
indicates the output buffer of the voltage com-
parator is disabled.
0
0
WP5 WP4 WP3 WP2 WP1
(volatile)
WP0
(LSB)
0
0
User
-bit5
User
-bit4
(volatile)
User
-bit3
Latch Enable
Shut-
down
(LSB)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X9448YV24I-2.7 | Mixed Signal with 2-Wire Interface |
| X9448YS24I-2.7 | Mixed Signal with 2-Wire Interface |
| X9448 | Mixed Signal with 2-Wire Interface |
| X9448YV24-2.7 | Hook-Up Wire; Conductor Size AWG:24; No. Strands x Strand Size:19 x 36; Jacket Color:Yellow; Approval Bodies:UL; Approval Categories:UL AWM Style 1180; Passes VW-1 Flame Test; Cable/Wire MIL SPEC:MIL-W-16878/5 Type EE RoHS Compliant: Yes |
| X9448WV24 | Mixed Signal with 2-Wire Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9448YV24I-2.7 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Mixed Signal with 2-Wire Interface |
| X9455 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer |
| X9455_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Two-wiper Digitally-Controlled Potentiometer |
| X9455TV24-2.7 | 功能描述:IC DCP DUAL 100K 256TAP 24-TSSOP 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(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9455TV24I-2.7 | 功能描述:IC DCP DUAL 100K 256TAP 24-TSSOP 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(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
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