X9279_09 Datasheet, PDF (13/18 Pages) Intersil Corporation – Single Digitally-Controlled (XDCP™) Potentiometer

Equivalent AC Load Circuit
SDA PIN
5V
1533Ω
100pF
X9279
SDA PIN
3V
867Ω
100pF
AC Timing
SYMBOL
PARAMETER
f_SCL
t_CYC
t_HIGH
t_LOW
t_SU:STA
t_HD:STA
t_SU:STO
t_SU:DAT
t_HD:DAT
t_R
t_F
t_AA
t_DH
t_I
t_BUF
t_SU:WPA
t_HD:WPA
Clock Frequency
Clock Cycle Time
Clock High Time
Clock Low Time
Start Setup Time
Start Hold Time
Stop Setup Time
SDA Data Input Setup Time
SDA Data Input Hold Time
SCL and SDA Rise Time
SCL and SDA Fall Time
SCL Low to SDA Data Output Valid Time
SDA Data Output Hold Time
Noise Suppression Time Constant at SCL and SDA inputs
Bus Free Time (Prior to Any Transmission)
A0, A1 Setup Time
A0, A1 Hold Time
High Voltage Write Cycle Timing
SYMBOL
PARAMETER
t_WR
High-voltage write cycle time (store instructions)
XDCP Timing
SYMBOL
PARAMETER
t_WRPO
t_WRL
Wiper response time after the third (last) power supply is stable
Wiper response time after instruction issued (all load instructions)
SPICE MACROMODEL
R_TOTAL
R_H
C_L
C_W
10pF
25pF
R_W
R_L
C_L
10pF
MIN
2500
600
1300
600
600
600
100
30
0
50
1200
0
0
MAX
400
300
300
0.9
UNITS
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
TYP
MAX
UNITS
5
10
ms
MIN
MAX UNITS
5
10
µs
5
10
µs
13
FN8175.4
September 23, 2009