MC9RS08LE4CWL Freescale Semiconductor, MC9RS08LE4CWL Datasheet - Page 17

• Manufacturer Part Number: MC9RS08LE4CWL
• Description: MCU 8BIT 4K FLASH W/LCD 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: RS08r

Specifications of MC9RS08LE4CWL

• Core Processor: RS08
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SCI
• Peripherals: LCD, LVD, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: RS08LA
• Core: RS08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 26
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: DEMO9RS08LA8
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3.9
3.10
This section describes AC timing characteristics for each peripheral system.
3.10.1
Freescale Semiconductor
1
2
3
1
Num
Data in Typical column was characterized at 3.0 V, 25 °C or is typical recommended value.
This specification applies to any time the FLL reference source or reference divider is changed, trim value changed or
changing from FLL disabled (FBELP, FBILP) to FLL enabled (FEI, FEE, FBE, FBI). If a crystal/resonator is being used as
the reference, this specification assumes it is already running.
Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum f
Measurements are made with the device powered by filtered supplies and clocked by a stable external clock signal. Noise
injected into the FLL circuitry via V
for a given interval.
1
2
3
4
5
6
Num
1
2
3
4
5
6
7
8
9
This is the shortest pulse that is guaranteed to pass through the pin input filter circuitry. Shorter pulses may or may not be
recognized.
Internal Clock Source (ICS) Characteristics
AC Characteristics
C
C
C
C
C
C
C
C
C
C
Table 10. ICS Frequency Specifications (Temperature Range = –40 to 85°C Ambient)
D
D
D
D
D
C
C
Control Timing
Square wave input clock frequency (EREFS = 0)
Average internal reference frequency - untrimmed
Average internal reference frequency - trimmed
DCO output frequency range — untrimmed
DCO output frequency range — trimmed
Resolution of trimmed DCO output frequency at
fixed voltage and temperature
Total deviation of trimmed DCO output frequency
over voltage and temperature
FLL acquisition time
Long term Jitter
over 2 ms interval)
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)
FLL bypass external (CLKS = 10)
FLL engaged external (CLKS = 00)
Slew rate control disabled (PTxSE = 0)
Slew rate control enabled (PTxSE = 1)
3
of DCO output clock (averaged
Characteristic
2
Parameter
cyc
3,2
DD
= 1/f
and V
1
MC9RS08LE4 MCU Data Sheet, Rev. 3
Bus
)
1
SS
Table 11. Control Timing
and variation in crystal oscillator frequency increase the C
3
t
Symbol
Rise
t
t
KBIPWS
t
KBIPW
f
t
extrst
Bus
RTI
Δf
, t
Symbol
Δf
t
f
Fall
dco_res_t
C
f
f
acquire
dco_ut
f
f
int_ut
dco_t
extal
int_t
dco_t
Jitter
1.5 t
Internal Clock Source (ICS) Characteristics
Min
700
150
100
—
—
0.03125
0
31.25
cyc
12.8
Min
25
16
—
—
—
—
0
Typical
Typical
1000
31.25
31.25
35
—
—
—
—
11
16
16
—
—
—
—
—
—
1
39.0625
41.66
21.33
Max
±0.2
Jitter
1300
Max
0.6
20
20
±2
10
5
1
—
—
—
—
—
percentage
%f
%f
%f
MHz
MHz
MHz
Unit
kHz
kHz
BUS
ms
MHz
Unit
dco
dco
dco
μs
ns
ns
ns
ns
.
17