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UM8254 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Programmable Interval Timer - UMC

भाग संख्या UM8254
समारोह Programmable Interval Timer
मैन्युफैक्चरर्स UMC 
लोगो UMC लोगो 
पूर्व दर्शन
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<?=UM8254?> डेटा पत्रक पीडीएफ

UM8254 pdf
(t)UMC
UM8254
Absolute Maximum Ratings*
Ambient Temperature Under Bias TA ...... O°C to 70°C
Storage Temperature TSTG ......... -65°C to +150°C
Voltage on Any Pin with Respect to
Ground ....................... -0.5V to +7V
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . 1 Watt
*Comments
Stress above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device.
These are stress ratings only. Functional operation of
this device at these or any other conditions above those
indicated in the operational sections of this specification
is not implied and exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
D.C. Characteristics
(TA=0°Ct070°C, Vee=5V+10%)
Symbol
VIL
VIH
VOL
VOH
II L
IOFL
ICC
Parameter
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Input Load Current
Output Float Leakage
Vee Su pply Current
Min.
-0.5
2.0
2.4
Max.
0.8
Vee+ 0.5V
0.45
±10
±10
140
Units
V
V
V
V
IlA
IlA
mA
Conditions
IOL = 2.0 mA
IOH = -400 IlA
VIN = Vee to OV
V OUT = Vee to 0.45V
Capacitance
(TA =25°C, Vec=GND =OV)
Symbol
CIN
Parameter
Input Capacitance
CliO I/O Capacitance
Min.
Max.
10
20
Unit
pF
pF
Conditions
fe = 1 MHz
Unmeasured pins
returned to Vss
A.C. Characteristics
(TA = O°C to 70°C, Vee = 5V ± 10%; GND = OV)
Bus Parameters (Note 1)
READ CYCLE
Symbol
Parameter
tAR Address Stable Before RDol.
tSR CS Stab Ie Before RDol.
tRA Address Hold Time After RDt
tRR RD Pu Ise Width
tRO Data Delay from RDt
tAD Data Delay from Address
tOF RDt to Data Floating
tRV Command Recovery Time
Note: AC timings measured at VOH = 2.0V, VOL = 0.8V
Min.
45
0
0
150
5
200
UM8254
Max.
120
220
90
Unit
ns
ns
ns
ns
ns
ns
ns
ns
7-155

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डाउनलोड[ UM8254 Datasheet.PDF ]


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