MC68HC908GR16VFJ Freescale Semiconductor, MC68HC908GR16VFJ Datasheet - Page 64
MC68HC908GR16VFJ
Manufacturer Part Number
MC68HC908GR16VFJ
Description
IC MCU 16K FLASH 8MHZ SPI 32LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68908GR16CFJE.pdf
(276 pages)
Specifications of MC68HC908GR16VFJ
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
LIN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
21
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908GR16VFJ
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- Current page: 64 of 276
- Download datasheet (4Mb)
Clock Generator Module (CGM)
64
4. Select a VCO frequency multiplier, N.
5. If N is < N
6. Calculate and verify the adequacy of the VCO and bus frequencies f
7. Select the VCO’s power-of-two range multiplier E, according to this table:
8. Select a VCO linear range multiplier, L, where f
When the tolerance on the bus frequency is tight, choose f
and R = 1. If f
practical choices of f
Reduce N/R to the lowest possible R.
Then recalculate N:
max
, use P = 0. If N > N
RCLK
1. Do not program E to a value of 3.
R
cannot meet this requirement, use the following equation to solve for R with
RCLK
=
round R
, and choose the f
16 MHz ≤ f
8 MHz ≤ f
MC68HC908GR16 Data Sheet, Rev. 5.0
N max
N max
Frequency Range
0 < f
N
N max
MAX
L
f
N
VCLK
max
=
Current N Value
=
VCLK
0
=
×
×
VCLK
×
round
VCLK
round
<
f
, choose P using this table:
<
2
4
round
BUS
⎧
⎨
⎩
N
=
<
<
N
< 8 MHz
⎛
⎜
⎝
f
------------------------- -
≤
N
N
< 16 MHz
VCLKDES
≤
(
< 32 MHz
N max
2
f
⎛
⎜
⎝
N max 2
≤
≤
RCLK
=
n
P
R
------------------------------------ -
⎛
⎜
⎝
N max 4
N max 8
RCLK
⎛
⎜
⎝
R
------------------------------------ -
×
(
×
--------------------------
2
f
f
VCLK
N R
E
×
RCLK
f
f
f
VCLKDES
RCLK
VCLK
×
NOM
×
f
⁄
VCLKDES
⎞
⎟
⎠
×
×
that gives the lowest R.
f
NOM
–
)
) 4 ⁄
×
×
integer
= 38.4 kHz
2
f
RCLK
⎞
⎟
⎠
P
⎞
⎟
⎠
⎞
⎟
⎠
RCLK
⎛
⎜
⎝
f
------------------------- -
VCLKDES
P
0
1
2
3
f
RCLK
to an integer divisor of f
E
0
1
2
(1)
VCLK
⎞
⎟
⎠
⎫
⎬
⎭
and f
Freescale Semiconductor
BUS
.
BUSDES
,
Related parts for MC68HC908GR16VFJ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: