CAT5251WI-50 Datasheet, PDF (5/15 Pages) ON Semiconductor – Quad Digitally Programmable Potentiometer with 256 Taps and SPI Interface

CAT5251
PIN CAPACITANCE ⁽¹⁾
Applicable over recommended operating range from T_A = 25ºC, f = 1.0MHz, V_CC = +5.0V (unless otherwise noted).
Symbol
C_OUT
C_IN
Parameter
Output Capacitance (SO)
Input Capacitance (¯C¯S¯, SCK, SI, ^{¯W¯P¯,} H¯¯O¯L¯D¯, A0, A1)
Test Conditions Min Typ Max Units
V_OUT = 0V
V_IN = 0V
8 pF
6 pF
A.C. CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol
t_SU
t_H
t_WH
t_WL
f_SCK
t_LZ
t_RI(1)
t_FI(1)
t_HD
t_CD
t_V
t_HO
t_DIS
t_HZ
t_CS
t_CSS
t_CSH
Parameter
Data Setup Time
Data Hold Time
SCK High Time
SCK Low Time
Clock Frequency
H¯¯O¯L¯D¯ to Output Low Z
Input Rise Time
Input Fall Time
H¯¯O¯L¯D¯ Setup Time
H¯¯O¯L¯D¯ Hold Time
Output Valid from Clock Low
Output Hold Time
Output Disable Time
H¯¯O¯L¯D¯ to Output High Z
¯C¯S¯ _{High Time}
¯C¯S¯ _{Setup Time}
¯C¯S¯ _{Hold Time}
Test Conditions
C_L = 50pF
Min Typ Max Units
50
ns
50
ns
125
ns
125
ns
DC
3 MHz
50 ns
2
µs
2
µs
100
ns
100
ns
200 ns
0
ns
250 ns
100 ns
250
ns
250
ns
250
ns
POWER UP TIMING ⁽¹⁾⁽²⁾
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
Min
t_PUR
Power-up to Read Operation
t_PUW
Power-up to Write Operation
WIPER TIMING
Symbol Parameter
Min Max Units
t_WRPO Wiper Response Time After Power Supply Stable 5 10 µs
t_WRL Wiper Response Time After Instruction Issued
5 10 µs
Typ Max Units
1
ms
1
ms
Notes:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) t_PUR and t_PUW are the delays required from the time V_CC is stable until the specified operation can be initiated.
© 2008 SCILLC. All rights reserved.
5
Characteristics subject to change without notice
Doc. No. MD-2017 Rev. G