X90100 Datasheet, PDF (2/10 Pages) Xicor Inc. – NV Electronically Programmable Capacitor

X90100
PIN CONFIGURATION
MSOP
X90100
INC 1
8
V_CC
U/D 2
7 CS
Vss
X90100
3
6
N/C
Cp
4
5
Cm
FCP
31 2
4
5
67 ₈
X90100
XXX
V_CC Limits
Blank =2.7V to 5.5V
Temperature Range
I = Industrial = –40°C to +85°C
Package
M = 8-Lead MSOP
X = 8-Bump FCP (Flipchip)
Base Part Number
X90100 ORDERING CODES
Ordering
Number
X90100M8I
X90100X8I
Ctotal
7.5pF to 14.5pF, Single Ended
7.5pF to 14.5pF, Single Ended
Package
8-lead MSOP
8-lead FCP
Temperature
Range
-40C to +85C
-40C to +85C
PIN DESCRIPTIONS
Pin Number
MSOP FCP
1
6
2
7
3
8
4
5
5
4
6
2
7
1
8
3
Symbol
INC
U/D
V_SS
Cp
Cm
N/C
CS
V_CC
Brief Description
Increment (INC). The INC input is negative-edge triggered. Toggling INC will move the
capacitance value and either increment or decrement the counter in the direction indicat-
ed by the logic level on the U/D input.
Up/Down (U/D). The U/D input controls the direction of the trimmed capacitor value and
whether the counter is incremented or decremented.
Ground.
Cp. The high (Cp) and low (Cm) terminals of the X90100 are equivalent to the fixed ter-
minals of a mechanical trimmable capacitor. The minimum dc voltage is V_SS and the
maximum is V_CC. The value of capacitance across the terminals is determined by digital
inputs INC, U/D, and CS.
Cm. The high (Cp) and low (Cm) terminals of the X90100 are equivalent to the fixed ter-
minals of a mechanical trimmable capacitor. The minimum dc voltage is V_SS and the
maximum is V_CC. The value of capacitance across the terminals is determined by digital
inputs INC, U/D, and CS.
Not Connected. Must be floating.
Chip Select (CS). The device is selected when the CS input is LOW. The current counter
value is stored in nonvolatile memory when CS is returned HIGH while the INC input is
also HIGH. After the store operation is complete the X90100 will be placed in the low
power standby mode until the device is selected once again.
Positive Supply Voltage.
REV 1.4.7 9/8/03
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