X9312 Datasheet, PDF (6/9 Pages) Xicor Inc. – E2POT™ Nonvolatile Digital Potentiometer

X9312
A.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified)
Symbol
t_Cl
t_lD
t_DI
t_lL
t_lH
t_lC
t_CPH
t_CPH
t_IW
t_CYC
t_R, t_F⁷
t_PU⁷
t_R V_CC⁷
Parameter
CS to INC setup
INC HIGH to U/D change
U/D to INC setup
INC LOW period
INC HIGH period
INC inactive to CS inactive
CS deselect time (STORE)
CS deselect time (NO STORE)
INC to Vw change
INC cycle time
INC input rise and fall time
Power-up to wiper stable
V_CC power-up rate
Min.
100
100
1
1
1
1
20
100
4
0.2
Limits
Typ.⁶
Max.
100
500
500
500
50
Unit
ns
ns
µs
µs
µs
µs
ms
ns
µs
µs
µs
µs
V/ms
POWER-UP AND DOWN REQUIREMENTS
There are no restrictions on the sequencing of V_CC and the voltages applied to the potentiometer pins during power-
up or power-down conditions. During power-up, the data sheet parameters for the DCP do not fully apply until 1
millisecond after V_CC reaches is final value. The V_CC ramp spec is always in effect.
A.C. TIMING
CS
t_CI
INC
t_CYC
t_IL
t_IH
t_IC
t_ID
t_DI
t_CPH
90% 90%
10%
t_F
t_R
U/D
t_IW
V_W
MI ⁽⁸⁾
Notes: (6) Typical values are for T_A = 25°C and nominal supply voltage.
(7) This parameter is sample tested.
(8) MI in the A.C. timing diagram refers to the minimum incremental change in the V_W output due to a change in the wiper position.
6
FN8176.0
March 15, 2005