MC9RS08KB4CFK Freescale Semiconductor, MC9RS08KB4CFK Datasheet - Page 27

• Manufacturer Part Number: MC9RS08KB4CFK
• Description: 8-bit Microcontrollers - MCU 8BIT 4K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of MC9RS08KB4CFK

• Rohs: yes
• Core: RS08
• Processor Series: MC9RS08KB12
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 4 KB
• Data Ram Size: 126 B
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFN-24
• Mounting Style: SMD/SMT

3.9.1
1
2
3
Freescale Semiconductor
Num
This is the shortest pulse guaranteed to pass through the pin input filter circuitry. Shorter pulses may or may not be recognized.
This is the minimum pulse width that is guaranteed to pass through the pin synchronization circuitry. Shorter pulses may or
may not be recognized. In stop mode, the synchronizer is bypassed so shorter pulses can be recognized in that case.
Timing is shown with respect to 20% V
1
2
3
4
5
6
C
D
D
D
D
D
D
Control Timing
Bus frequency (t
Real time interrupt internal oscillator period
External RESET pulse width
KBI pulse width
KBI pulse width in stop
Port rise and fall time (load = 50 pF)
Slew rate control disabled (PTxSE = 0)
Slew rate control enabled (PTxSE = 1)
RESET
(rising or high level)
(falling or low level)
2
cyc
Parameter
= 1/f
MC9RS08KB12 Series MCU Data Sheet, Rev. 5
1
Bus
DD
KBI Pin
KBI Pin
)
and 80% V
1
Figure 31. KBI Pulse Width
Table 10. Control Timing
Figure 30. Reset Timing
3
DD
levels. Temperature range –40 °C to 85 °C.
t
extrst
t
t
t
t
t
Symbol
t
Rise
KBIPWS
KBIPW
KBIPW
KBIPWS
t
KBIPWS
KBIPW
t
f
extrst
t
Bus
RTI
, t
Fall
1.5 t
Min
700
150
100
—
—
0
cyc
Typical
1000
11
35
—
—
—
—
Electrical Characteristics
1300
Max
10
—
—
—
—
—
MHz
Unit
μs
ns
ns
ns
ns
27