RAA28 Infrared I2C remote control decoder Product specification
2002 Apr 13
D.C. Characteristics TA = -40°C to 85°C, VCC = 2.7 V to 6.0 V (unless otherwise noted) Symbol Parameter VIL
Input Low Voltage
VIH
Input High Voltage
VIH1
Input High Voltage
Condition (Except XTAL1, RST) (XTAL1, RST) (1)
VOL
Output Low Voltage (Ports 1, 3)
VOH
Output High Voltage (Ports 1, 3)
Min
Max
Units
-0.5
0.2 VCC-0.1
V
0.2 VCC+0.9
VCC+0.5
V
0.7 VCC
VCC+0.5
V
0.5
V
IOL = 20 mA, VCC = 5 V IOL = 10 mA, VCC = 2.7 V IOH = -80 µA, VCC = 5 V ± 10%
2.4
V
IOH = -30 µA
0.75 VCC
V
IOH = -12 µA
0.9 VCC
V
IIL
Logical 0 Input Current (Ports 1, 2, 3)
VIN = 0.45 V
-50
µA
ITL
Logical 1 to 0 Transition Current (Ports 1, 2, 3)
VIN = 2 V
-750
µA
ILI
Input Leakage Current (Port P1.0, P1.1)
0 < VIN < VCC
±10
µA
VOS
Comparator Input Offset Voltage
VCC = 5 V
20
mV
VCM
Comparator Input Common Mode Voltage
0
VCC
V
RRST
Reset Pulldown Resistor
50
300
KΩ
CIO
Pin Capacitance
10
pF
15/5.5
mA
Test Freq. = 1 MHz, TA = 25°C Active Mode, 12 MHz, VCC = 6 V/3 V
Power Supply Current
Idle Mode, 12 MHz, VCC = 6 V/3 V P1.0 & P1.1 = 0V or VCC
5/1
mA
Power Down Mode(2)
VCC = 6 V P1.0 & P1.1 = 0V or VCC
100
µA
VCC = 3 V P1.0 & P1.1 = 0V or VCC
20
µA
ICC
Notes: 1. Under steady state (non-transient) conditions, IOL must be externally limited as follows: Maximum IOL per port pin:20 mA Maximum total IOL for all output pins:80 mA
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test conditions. 2. Minimum VCC for Power Down is 2 V.
External Clock Drive Waveforms
External Clock Drive Symbol
Parameter
VCC = 2.7 V to 6.0 V
VCC = 4.0 V to 6.0 V
Min
Max
Min
Max
12
0
24
Units
1/tCLCL
Oscillator Frequency
0
tCLCL
Clock Period
83.3
41.6
ns
tCHCX
High Time
30
15
ns
tCLCX
Low Time
30
15
ns
tCLCH
Rise Time
20
20
ns
tCHCL
Fall Time
20
20
ns
Figure 1. Oscillator Connections
Notes: C1, C2 = 30 pF ± 10 pF for Crystals = 40 pF ± 10 pF for Ceramic Resonators
Use Reset Not use Not use Crystal/reson Crystal/reson RC5 input I2C DATA Clock I2C Led receive RC5 Not use Not use Not use Select A0=0 Select A1=0 Select A2=0 Select Repeat Not use Active if RC5 valid
READ I2C
Start I2c Slave address Sub address Command Stop I2c
:send by master :send by master :send by RAA28 :send by RAA28 :send by master
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