TMP92CM22

2007-02-16

92CM22-223

4.3 AD Conversion Characteristics
Parameter Symbol Min Typ. Max Unit
Analog reference voltage (+) VREFH VCC − 0.2 VCC VCC
Analog reference voltage (−) VREFL VSS VSS VSS + 0.2
AD converter power supply voltage AVCC VCC VCC VCC
AD converter power supply ground AVSS VSS VSS VSS
Analog input voltage AVIN VREFL VREFH
V
Analog current for analog reference voltage
<VREFON> = 1
IREF 1.0 1.2 mA
Analog current for analog reference voltage
<VREFON> = 0
0.02 5.0 UA
Total error
(Include quantize error of ± 0.5 LSB )
ET ±1.0 ±4.0 LSB
4.4 Event Counter (TA0IN, TB1IN0, and TB1IN1)
Varia ble fSYS =
20 MHz
(fc = 40 MHz)
fSYS =
125 kHz
(fc = 4 MHz)
Parameter Symbol
MIN MAX MIN MAX MIN MAX
Unit
Clock cycle TVCK 8X + 100 500 64100 ns
Low-level clock width TVCKL 4X + 40 240 32040 ns
High-level clock width TVCKH 4X + 40 240 32040 ns
Note: Symbol “x” in the above table means the period of clock “fSYS”, it’s same period of the system clock “fSYS” for
CPU core. The period of fSYS depends on the clock gear setting or changing high-speed oscillator/low-speed
oscillator and so on.