TC72
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise noted, all parameters apply at VDD = 2.65V to 5.5V, TA = -55°C to +125 °C.
Parameters
Sym
Min
Typ
Max Units
Conditions
Serial Port AC Timing (Note 2, 3)
Clock Frequency
SCK Low Time
SCK High Time
CE to SCK Setup
SCK to Data Out Valid
CE to Output Tri-state
SCK to Data Hold Time
Data to SCK Set-up Time
SCK to CE Hold Time
SCK Rise Time
SCK Fall Time
CE Inactive Time
Thermal Package Resistance
fCLK
DC
—
7.5
MHz
tCL
65
—
—
ns
tCH
65
—
—
ns
tCC
400
—
—
ns
tCDD
—
—
55
ns
tCDZ
—
—
40
ns
tCDH
35
—
—
ns
tDC
35
—
—
ns
tCCH
100
—
—
ns
tR
—
—
200
ns
tF
—
—
200
ns
tCWH
400
—
—
ns
Thermal Resistance, MSOP-8
θJA
—
206
—
°C/W
Thermal Resistance, DFN-8
θJA
—
60.5
—
°C/W
Note 1: The TC72-2.8MXX, TC72-3.3MXX and TC72-5.0MXX will operate from a supply voltage of 2.65V to 5.5V. However, the
TC72-2.8MXX, TC72-3.3MXX and TC72-5.0MXX are tested and specified at the nominal operating voltages of 2.8V,
3.3V and 5.0V respectively. As VDD varies from the nominal operating value, the accuracy may be degraded. Refer to
Figure 2-5 and Figure 2-6.
2: Measured with a load of CL = 50 pF on the SDO output pin of the TC72.
3: All time measurements are measured with respect to the 50% point of the signal, except for the SCK rise and fall times.
The rise and fall times are defined as the 10% to 90% transition time.
4: Resolution = Temperature Range/No. of Bits = (+127°C – -128°C) / (210) = 256/1024 = 0.25°C/Bit
DS21743A-page 4
2002 Microchip Technology Inc.