MC68HC908MR8CFA Freescale Semiconductor, MC68HC908MR8CFA Datasheet - Page 348

• Manufacturer Part Number: MC68HC908MR8CFA
• Description: IC MCU 8K FLASH 8MHZ PWM 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 16
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Electrical Specifications
21.12 CGM Acquisition/Lock Time Specifications
Technical Data
348
Filter capacitor multiply factor
Acquisition mode time factor
Tracking mode time factor
Manual mode time to stable
Manual stable to lock time
Manual acquisition time
Tracking mode entry frequency
tolerance
Acquisition mode entry frequency
tolerance
Lock entry frequency tolerance
Lock exit frequency tolerance
Reference cycles per acquisition
mode measurement
Reference cycles per tracking mode
measurement
Automatic mode time to stable
Automatic stable to lock time
Automatic lock time
PLL jitter (deviation of average bus
frequency over 2 ms)
Description
Symbol
C
K
∆
∆
n
K
∆
∆
n
t
t
t
t
ACQ
Lock
ACQ
Lock
FACT
t
ACQ
t
ACQ
ACQ
Lock
TRK
TRK
TRK
UNL
AL
AL
f
J
Electrical Specifications
n
n
ACQ
TRK
±
±
Min
6.3%
0.9%
—
—
—
—
—
—
—
—
—
0
0
/f
0
/f
XCLK
XCLK
(f
(f
(f
(f
XCLK
XCLK
XCLK
XCLK
(8 * V
(4 * V
(8 * V
(4 * V
t
t
ACQ
ACQ
0.0154
0.1135
0.0174
Typ
128
32
—
—
—
—
—
* K
* K
* K
* K
+ t
+ t
DDA
DDA
DDA
DDA
ACQ)
ACQ)
TRK
TRK
AL
AL
)/
)/
)/
)/
)
)
MC68HC908MR8 — Rev 4.1
* (0.025 %)
±
±
±
±
±
* (N/4)
(f
Max
Freescale Semiconductor
3.6%
7.2%
0.9%
1.8%
—
—
—
—
—
—
—
—
—
—
—
CRYS
)
If C
If C
If C
If C
freq. mult.
N = VCO
correctly
correctly
correctly
correctly
(GBNT)
Notes
F
F
F
F
F/sV
chosen
—
—
—
—
—
—
—
chosen
chosen
—
chosen
V
V