MC908GZ32CFAE Freescale Semiconductor, MC908GZ32CFAE Datasheet - Page 78
![IC MCU 32K FLASH 8MHZ 48-LQFP](/photos/37/62/376278/tqfp-48_sml.jpg)
MC908GZ32CFAE
Manufacturer Part Number
MC908GZ32CFAE
Description
IC MCU 32K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GZ60CFJE.pdf
(352 pages)
Specifications of MC908GZ32CFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K 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
HC08GZ
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
CAN/ESCI/SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
53
Number Of Timers
8
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68EML08GZE
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
CAN, 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:
MC908GZ32CFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908GZ32CFAE
Manufacturer:
FREESCALE
Quantity:
20 000
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Clock Generator Module (CGM)
78
10. Verify the choice of N, E, and L by comparing f
4. Select a VCO frequency multiplier, N.
5. Calculate and verify the adequacy of the VCO and bus frequencies f
6. Select the VCO’s power-of-two range multiplier E, according to
7. Select a VCO linear range multiplier, L, where f
8. Calculate and verify the adequacy of the VCO programmed center-of-range frequency, f
9. For proper operation,
In cases where desired bus frequency has some tolerance, choose f
either by other module requirements (such as modules which are clocked by CGMXCLK), cost
requirements, or ideally, as high as the specified range allows. See
Specifications. After choosing N, the actual bus frequency can be determined using equation in 2
above.
center-of-range frequency is the midpoint between the minimum and maximum frequencies
attainable by the PLL.
f
to f
VCLK
VCLK
must be within the application’s tolerance of f
.
Exceeding the recommended maximum bus frequency or VCO frequency
can crash the MCU.
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
1. Do not program E to a value of 3.
Table 4-2. Power-of-Two Range Selectors
16 MHz< f
8 MHz< f
Frequency Range
0 < f
N
L = Round
f
VRS
VCLK
=
f
VCLK
f
VCLK
f
VCLK
VRS
BUS
round
–
≤ 8 MHz
f
≤ 16 MHz
VCLK
= (L x 2
≤ 32 MHz
=
=
NOTE
⎛
⎜
⎝
( ) f
(
f
------------------------- -
N
f
VCLKDES
VCLK
≤
f
2
VCLK
RCLK
NOM
E
×
E
f
-------------------------- -
f
NOM
) f
VCLK
x f
VCLKDES
RCLK
) 4 ⁄
NOM
= 71.4 kHz
to f
NOM
2
×
⎞
⎟
⎠
VRS
2
E
, and f
and f
Table
VRS
VCLKDES
2
E
0
1
(1)
Chapter 21 Electrical
VCLK
RCLK
must be as close as possible
4-2.
. For proper operation,
to a value determined
and f
Freescale Semiconductor
BUS
.
VRS
. The
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