TC77 查看數據表（PDF） - Microchip Technology
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TC77 Datasheet PDF : 22 Pages
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TC77
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise noted, all parameters apply at VDD = 2.7V to 5.5V and
TA = -55°C to +125°C.
Parameters
Sym
Min Typ
Max Units
Conditions
Digital Input/Output
High Level Input Voltage
VIH
0.7 VDD — VDD + 0.3 V
Low Level Input Voltage
VIL
-0.3
—
0.3 VDD
V
High Level Output Voltage
VOH
2.4
—
—
V IOH = -400 µA
Low Level Output Voltage
VOL
—
—
0.4
V IOL = +2 mA
Input Current
IIN(0),
IIN(1)
-1.0
—
-1.0
—
+1.0
+1.0
µA VIN = GND
VIN = VDD
Input Hysteresis
0.35 0.8
—
V SI/O, SCK
Pin Capacitance
CIN, COUT
—
20
—
pF
Tri-state Output Leakage
Current
IO_LEAK
-1.0
—
—
—
Serial Port AC Timing (Notes 2, 3)
—
+1.0
µA VO = GND
VO = VDD
Clock Frequency
fCLK
DC
—
7.0
MHz
CS Fall to First Rising SCK
tCS-SCK
100
—
—
ns
Edge
CS Low to Data Out Delay
tCS-SI/O
—
—
70
ns
SCK Fall to Data Out Delay
tDO
—
—
100
ns
CS High to Data Out
Tri-state
tDIS
—
—
200
ns
SCK High to Data In Hold Time
tHD
50
—
—
ns
Data In Set-up Time
tSU
Thermal Package Resistance
30
—
—
ns
Thermal Resistance, SOT23-5
JA
—
230
—
°C/W
Thermal Resistance, 8L-SOIC
JA
—
163
—
°C/W
Note 1: The TC77-3.3MXX and TC77-5.0MXX will operate from a supply voltage of 2.7V to 5.5V. However, the tem-
perature accuracy of the TC77-3.3MXX and TC77-5.0MXX is specified at the nominal operating voltages of
3.3V and 5.0V, respectively. As VDD varies from the nominal operating value, the accuracy may be
degraded (Refer to Figures 2-6 and 2-7).
2: All time measurements are measured with respect to the 50% point of the signal.
3: Load Capacitance, CL = 80 pF, is used for AC timing measurements of output signals.
4: Resolution = Temperature Range/No. of Bits = (+255°C – -256°C) / (213)
Resolution = 512/8192 = 0.0625°C/Bit
2002-2012 Microchip Technology Inc.
DS20092B-page 3
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