參數(shù)資料
型號(hào)： X9428WP
廠商： INTERSIL CORP
元件分類： 數(shù)字電位計(jì)
英文描述： 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDIP16
封裝： PLASTIC, DIP-16
文件頁(yè)數(shù)： 4/20頁(yè)
文件大?。?/td> 580K
代理商： X9428WP
X9428
Characteristics subject to change without notice.
12 of 20
REV 1.1.5 7/8/03
www.xicor.com
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
Notes: (1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used
as a potentiometer.
(2) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potenti-
ometer. It is a measure of the error in step size.
(3) MI = RTOT/63 or (RH—RL)/63, single pot
(4) Max. = all four arrays cascaded together, Typical = individual array resolutions.
ENDURANCE AND DATA RETENTION
CAPACITANCE
POWER-UP TIMING
POWER-UP AND POWER-DOWN
There are no restrictions on the power-up or power-down sequencing of the bias supplies VCC, V+, and V- provided
that all three supplies reach their nal values within 1msec of each other. However, at all times, the voltages on the
potentiometer pins must be less than V+ and more than V–. The recall of the wiper position from nonvolatile
memory is not in effect until all supplies reach their nal value.
Notes: (5) This parameter is periodically sampled and not 100% tested
(6) tPUR and tPUW are the delays required from the time the third (last) power supply (VCC, V+ or V-) is stable until the specic
instruction can be issued. These parameters are periodically sampled and not 100% tested.
(7) Sample tested only.
Symbol
Parameter
Limits
Test Conditions
Min.
Typ.
Max.
Unit
ICC1
VCC supply current
(nonvolatile write)
1mA
fSCL = 400kHz, SDA = Open,
Other Inputs = VSS
ICC2
VCC supply current
(move wiper, write, read)
100
A
fSCL = 400kHz, SDA = Open,
Other Inputs = VSS
ISB
VCC current (standby)
1
A
SCL = SDA = VCC, Addr. = VSS
ILI
Input leakage current
10
A
VIN = VSS to VCC
ILO
Output leakage current
10
A
VOUT = VSS to VCC
VIH
Input HIGH voltage
VCC x 0.7
VCC x 0.5
V
VIL
Input LOW voltage
–0.5
VCC x 0.1
V
VOL
Output LOW voltage
0.4
V
IOL = 3mA
Parameter
Min.
Unit
Minimum endurance
100,000
Data changes per bit per register
Data retention
100
Years
Symbol
Test
Max.
Unit
Test Conditions
CI/O
(5)
Input/output capacitance (SDA)
8
pF
VI/O = 0V
CIN
(5)
Input capacitance (A0, A1, A2, A3, and SCL)
6
pF
VIN = 0V
Symbol
Parameter
Min.
Typ.
Max.
Unit
tPUR
(6)
Power-up to initiation of read operation
1
ms
tPUW
(6)
Power-up to initiation of write operation
5
ms
tRVCC
(7)
VCC Power up ramp rate
0.2
50
V/msec
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