UR8HC007-001 Datasheet, PDF (15/18 Pages) Semtech Corporation – Input Device and Power Management Companion IC for Jupiter Devices

POWER CONSUMPTION WHILE OPERATING THE PWM CHANNELS
Users should consider the built-in PWM channels for generating slowly changing DC control voltages. Since
continuous clocking is necessary for the PWM operations, the only penalty for using the built-in PWM channels is the
requirement for the chip to operate at least in the Reduced Power Mode, with typical Current Consumption of 750 µA.
NOTES FOR ELECTRICALS
Note1:
Current Consumption values do not
include any loading on the Output
pins or Analog Reference Current
for the built-in A/D or D/A modules.
Note 2:
Since the built-in A/D module
consumes current only during short
periods of time (when A/D
conversion is actually requested),
the Analog Reference Current for
the built-in A/D module is not a
significant contributor to the overall
power consumption.
Note 3:
The Analog Reference Current for
the built-in D/A module correlates
linearly to the Output Voltage. For
D/A output of 0V, the Analog
Reference Current is null. For D/A
outputs approaching Full Scale
(AVREF), the maximum Analog
Reference Current is indicated in
this Table. This current is a
significant contributor to the overall
power consumption.
Copyright ©1998-2001 Semtech Corporation
DOC8-007-001-DS-108
JUNO^TM ELECTRICAL CHARACTERISTICS, (CON’T)
Recommended Operating Conditions, Digital Section
(VSS = 0V, Ambient Temperature TA is in the range TLOW to THIGH)
Parameter
Symbol
Min
Typ
Max
Supply voltage
VDD
2.7
3.0
5.5
Input logic high
voltage
All pins except 2-9
VIH
0.8VDD
VDD
Pins 2-9
(PS/2 ports xxxDAT,
xxxCLK, GIO16/SW16,
GIO17/SW17)
VIH
0.8VDD
5.5
Input logic low
voltage
All pins except 28
VIL
0
0.2VDD
Pin 28 (OSCI)
VIL
0
0.16VDD
Input current
VI = VSS, VDD)
IIL / IIL
-5.0
0 5.0
Input Pull-up Current
(pins 56-58 / IP6-IP8,
VI = VSS)
IPUP
-120
-10
Output voltage
IOH = -1.0 mA
VOH
VDD-1.0
IOL = 1.6 mA
VOL
0.4
Current Consumption
(see note 1 below)
Full Speed Mode
(Fosc=4MHz)
IDD
3.5
7.0
Reduced Power Mode
(Fosc=4MHz)
IDD
750
Stop Mode
(Interrupts active, Fosc=0)
1.0 (TA = 25ºC)
IDD
.1 10(TA = 85ºC )
Unit
V
V
V
V
V
µA
µA
V
V
mA
µA
µA
Recommended operating conditions, analog section
(VSS = 0V, Ambient Temperature TA is in the range TLOW to THIGH)
Parameter
Symbol
Min
Typ
Max
Analog Signal Ground
AVSS
0
Analog Reference Voltage AVREF
2.7
VDD
VDD
A/D Resolution -
10
A/D Absolute Accuracy
±4
A/D Analog Input
Voltage Range
VIA
AVSS
AVREF
A/D Analog Input Current IIA
5.0
Analog Reference Current
(see note 2)
(A/D is active)
IAVREF
200
D/A Resolution -
8
D/A Absolute Accuracy -
2.5
D/A Output Impedance
RO
1
2.5
4.0
Analog Reference Current
(see note 3)
(D/A is active,
Output = Full Scale)
IAVREF
3.2
Unit
V
V
Bits
LSb
V
µA
µA
Bits
%
KOhms
mA
Note 1: please see left
Note 2: please see left
Note 3: please see left
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