MC908GR48ACFAE Freescale Semiconductor, MC908GR48ACFAE Datasheet - Page 285
![IC MCU 48K FLASH 8MHZ 48-LQFP](/photos/12/27/122793/mc908gr48acfae_sml.jpg)
MC908GR48ACFAE
Manufacturer Part Number
MC908GR48ACFAE
Description
IC MCU 48K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR48ACFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Processor Series
HC08GR
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
ESCI/SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
53
Number Of Timers
8
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
24-ch x 10-bit
Controller Family/series
HC08
No. Of I/o's
37
Ram Memory Size
1.5KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
SCI, SPI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GR48ACFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- Current page: 285 of 314
- Download datasheet (5Mb)
20.9.3 CGM Acquisition/Lock Time Information
Freescale Semiconductor
Acquisition mode entry frequency tolerance
Tracking mode entry frequency tolerance
LOCK entry frequency tolerance
LOCK exit frequency tolerance
Reference cycles per acquisition mode period
Reference cycles per tracking mode period
Automatic mode time to stable
Automatic stable to lock time
Automatic lock time (t
PLL jitter, deviation of average bus frequency
1. Deviation between VCO frequency and desired frequency to enter PLL acquisition mode.
2. Deviation between VCO frequency and desired frequency to enter PLL tracking mode (stable).
3. Deviation between VCO frequency and desired frequency to enter locked mode.
4. Deviation between VCO frequency and desired frequency to exit locked mode.
5. Acquisition time is an integer multiple of reference cycles divided by reference clock.
6. Stable to lock time is an integer multiple of reference cycles divided by reference clock.
7. Maximum lock time depends on CGMXFC filter components, power supply filtering, and reference clock stability. PLL may
over 2 ms period
not lock if improper components or poor filtering and layout are used.
Characteristic
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
ACQ
+ t
AL
(4)
)
(7)
(3)
(2)
(1)
Symbol
Δ
t
Δ
n
Δ
Δ
n
t
LOCK
LOCK
ACQ
t
ACQ
ACQ
TRK
UNL
TRK
AL
f
J
n
n
ACQ
TRK
± 0.9
± 3.6
Clock Generation Module (CGM) Characteristics
Min
—
—
—
0
0
/f
0
/f
RCLK
RCLK
See note
See note
Typ
128
—
—
—
—
32
—
5
(5)
(6)
0.025% x
f
RCLK
± 7.2
± 3.6
± 0.9
± 1.8
Max
N/4
25
—
—
—
—
x
Unit
ms
Hz
%
%
%
%
s
s
285
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