SCC2692AC1B44 データシートの表示（PDF） - Philips Electronics
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SCC2692AC1B44 Datasheet PDF : 30 Pages
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Philips Semiconductors
Dual asynchronous receiver/transmitter (DUART)
Product specification
SCC2692
DC ELECTRICAL CHARACTERISTICS1, 2, 3
SYM-
BOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
Min
Typ Max
VIL
Input low voltage
VIH
Input high voltage (except X1/CLK)6
VIH
Input high voltage (except X1/CLK)7
VIH
Input high voltage (X1/CLK)
2.0
2.5
0.8 VCC
0.8
V
V
V
V
VOL
Output low voltage
VOH
Output high voltage (except OD outputs)4
IOL = 2.4mA
IOH = -400µA
VCC -0.5
0.4
V
V
IIX1PD
IILX1
IIHX1
X1/CLK input current - power down
X1/CLK input low current - operating
X1/CLK input high current - operating
VIN = 0 to VCC
-10
VIN = 0
-75
VIN = VCC
0
+10 µA
0
µA
75
µA
IOHX2
X2 output high current - operating
VOUT = VCC, X1 = 0
0
IOHX2S X2 output high short circuit current - operating
VOUT = 0, X1 = 0
-10
IOLX2
X2 output low current - operating
VOUT = 0, X1 = VCC
-75
IOLX2S
X2 output low short circuit current - operating and power down VOUT = VCC, X1 = VCC
1
+75 µA
-1
mA
0
µA
10
mA
II
IOZH
IOZL
IODL
IODH
Input leakage current:
All except input port pins
Input port pins
Output off current high, 3-state data bus
Output off current low, 3-state data bus
Open-drain output low current in off-state
Open-drain output high current in off-state
Power supply current5
VIN = 0 to VCC
-10
VIN = 0 to VCC
-20
VIN = VCC
VIN = 0V
-10
VIN = 0
-10
VIN = VCC
+10 µA
+10 µA
10
µA
µA
µA
10
µA
ICC
Operating mode
Power down mode8
CMOS input levels
CMOS input levels
10
mA
2
10
mA
NOTES:
1. Parameters are valid over specified temperature range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs swing between 0.4V and 2.4V with a transition time of 5ns
maximum. For X1/CLK this swing is between 0.4V and 4.4V. All time measurements are referenced at input voltages of 0.8V and 2.0V and
output voltages of 0.8V and 2.0V, as appropriate.
3. Typical values are at +25°C, typical supply voltages, and typical processing parameters.
4. Test conditions for outputs: CL = 150pF, except interrupt outputs. Test conditions for interrupt outputs: CL = 50pF, RL = 2.7KΩ to VCC.
5. All outputs are disconnected. Inputs are switching between CMOS levels of VCC -0.2V and VSS + 0.2V.
6. TA > 0°C
7. TA < 0°C
8. See UART application note for 5µA.
AC CHARACTERISTICS1, 2, 4
SYMBOL
PARAMETER
Reset Timing (See Figure 3)
tRES
RESET pulse width
Bus Timing5 (See Figure 4)
tAS
tAH
tCS
tCH
tRW
tDD
tDA
tDF
tDI
tDS
tDH
tRWD
A0-A3 setup time to RDN, WRN Low
A0-A3 hold time from RDN, WRN Low
CEN setup time to RDN, WRN Low
CEN hold time from RDN, WRN High
WRN, RDN pulse width
Data valid after RDN Low
RDN Low to data bus active7
Data bus floating after RDN High
RDN High to data bus invalid7
Data setup time before WRN High
Data hold time after WRN High
High time between reads and/or writes5, 6
LIMITS
Min
Typ3
Max
200
10
100
0
0
225
175
15
125
20
100
20
200
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1998 Sep 04
6
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