ISL22449 Datasheet, PDF (4/12 Pages) Intersil Corporation – Quad Digitally Controlled Potentiometer

ISL22449
Operating Specifications Over the recommended operating conditions unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
TYP
MIN (NOTE 5) MAX
I_CC1
V_CC Supply Current (volatile
V_CC = +3.6V, 10k DCP, f_SPI = 5MHz; (for SPI
2.5
write/read)
active, read and write states)
V_CC Supply Current (volatile
V_CC = +3.6V, 50k DCP, f_SPI = 5MHz; (for SPI
0.65
write/read)
active, read and write states)
I_CC2
V_CC Supply Current ( non-volatile
V_CC = +5.5V, 10k DCP, f_SPI = 5MHz; (for SPI
4.0
write/read)
active, read and write states)
V_CC Supply Current ( non-volatile
V_CC = +5.5V, 50k DCP, f_SPI = 5MHz; (for SPI
3.0
write/read)
active, read and write states)
I_SB
V_CC Current (standby)
V_CC = +5.5V, 10k DCP, SPI interface in
2.4
standby state
V_CC = +5.5V, 50k DCP, SPI interface in
525
standby state
V_CC = +3.6V, 10k DCP, SPI interface in
1.6
standby state
V_CC = +3.6V, 50k DCP, SPI interface in
350
standby state
I_SD
V_CC Current (shutdown)
V_CC = +5.5V @ +85°C, SPI interface in
5
standby state
V_CC = +5.5V@ +125°C, SPI interface in
6.5
standby state
V_CC = +3.6V @ +85°C, SPI interface in
4
standby state
V_CC = +3.6V @ +125°C, SPI interface in
5.5
standby state
I_LkgDig Leakage current, at pins SHDN, SCK, Voltage at pin from GND to V_CC
-1
1
SDI, SDO and CS
t_WRT DCP wiper response time
SCK falling edge of last bit of DCP data byte
1.5
(Note 15)
to wiper new position
t_ShdnRec DCP recall time from shutdown mode From rising edge of SHDN signal to wiper
1.5
(Note 15)
stored position and RH connection
SCK rising edge of last bit of ACR data byte
1.5
to wiper stored position and RH connection
Vpor Power-on recall voltage
Minimum V_CC at which memory recall occurs
2.0
2.6
VccRamp Vcc ramp rate
0.2
t_D
Power-up delay
V_CC above Vpor, to DCP Initial Value
3
Register recall completed, and SPI Interface
in standby state
EEPROM SPECIFICATION
EEPROM Endurance
1,000,000
EEPROM Retention
Temperature T < +55°C
50
t_WC
Non-volatile Write cycle time
(Note 13)
12
20
SERIAL INTERFACE SPECIFICATIONS
V_IL
SHDN, SCK, SDI, and CS input buffer
LOW voltage
-0.3
0.3*V_CC
V_IH
SHDN, SCK, SDI, and CS input buffer
HIGH voltage
0.7*V_CC
V_CC+0.3
UNIT
mA
mA
mA
mA
mA
µA
mA
µA
µA
µA
µA
µA
µA
µs
µs
µs
V
V/ms
ms
Cycles
Years
ms
V
V
4
FN6333.2
September 15, 2006