MC9RS08KA8 Datasheet, PDF (20/40 Pages) Freescale Semiconductor, Inc – MCU Block Diagram

Electrical Characteristics
3.9.2 TPM/MTIM Module Timing
Synchronizer circuits determine the shortest input pulses that can be recognized or the fastest clock that can be used as the
optional external source to the timer counter. These synchronizers operate from the current bus rate clock.
Table 11. TPM Input Timing
Num
1
2
3
4
5
C
Rating
D External clock frequency
D External clock period
D External clock high time
D External clock low time
D Input capture pulse width
Symbol
Min
f_TPMext
DC
t_TPMext
4
t_clkh
1.5
t_clkl
1.5
t_ICPW
1.5
Max
f_Bus/4
—
—
—
—
Unit
MHz
t_cyc
t_cyc
t_cyc
t_cyc
t_clkh
t_TCLK
TCLK
t_clkl
Figure 19. Timer External Clock
TPMCHn
t_ICPW
TPMCHn
t_ICPW
Figure 20. Timer Input Capture Pulse
3.10 Analog Comparator (ACMP) Electrical
Table 12. Analog Comparator Electrical Specifications
Num
C
Characteristic
Symbol
Min
Typical
Max
Unit
1
D Supply voltage
2
P Supply current (active)
3
D Analog input voltage¹
4
P Analog input offset voltage¹
5
C Analog Comparator hysteresis¹
6
C Analog source impedance¹
7
P Analog input leakage current
8
C Analog Comparator initialization delay
9
P
Analog Comparator bandgap reference
voltage
1 _{These data are characterized but not production tested.}
V_DD
I_DDAC
V_AIN
V_AIO
V_H
R_AS
I_ALKG
t_AINIT
V_BG
1.80
—
V_SS – 0.3
3.0
—
—
—
1.1
—
20
—
20
9.0
—
—
—
1.208
5.5
V
35
μA
V_DD
V
40
mV
15.0
mV
10
kΩ
1.0
μA
1.0
μs
1.3
V
MC9RS08KA8 Series, Rev. 1
20
Preliminary—Subject to Change Without Notice
Freescale Semiconductor