MC908GT16CBE Freescale Semiconductor, MC908GT16CBE Datasheet - Page 80
![IC MCU 16K FLASH 8MHZ SPI 42SDIP](/photos/12/38/123871/mc908gt16cbe_sml.jpg)
MC908GT16CBE
Manufacturer Part Number
MC908GT16CBE
Description
IC MCU 16K FLASH 8MHZ SPI 42SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GT8CFBE.pdf
(292 pages)
Specifications of MC908GT16CBE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
36
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-DIP (0.600", 15.24mm)
Controller Family/series
HC08
No. Of I/o's
34
Ram Memory Size
512Byte
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08GT
Core
HC08
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
30
Number Of Timers
4
Operating Supply Voltage
0 V to 5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 8 Channel
Package
42SPDIP
Family Name
HC08
Maximum Speed
8 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- Current page: 80 of 292
- Download datasheet (4Mb)
Internal Clock Generator (ICG) Module)
7.3.1 Clock Enable Circuit
The clock enable circuit is used to enable the internal clock (ICLK) or external clock (ECLK) and the port
logic which is shared with the oscillator pins (OSC1 and OSC2). The clock enable circuit generates an
ICG stop (ICGSTOP) signal which stops all clocks (ICLK, ECLK, and the low-frequency base clock,
IBASE). ICGSTOP is set and the ICG is disabled in stop mode if the oscillator enable stop bit
(OSCENINSTOP) in the CONFIG2 register is clear. The ICG clocks will be enabled in stop mode if
OSCENINSTOP is high.
The internal clock enable signal (ICGEN) turns on the internal clock generator which generates ICLK.
ICGEN is set (active) whenever the ICGON bit is set and the ICGSTOP signal is clear. When ICGEN is
clear, ICLK and IBASE are both low.
The external clock enable signal (ECGEN) turns on the external clock generator which generates ECLK.
ECGEN is set (active) whenever the ECGON bit is set and the ICGSTOP signal is clear. ECGON cannot
be set unless the external clock enable (EXTCLKEN) bit in the CONFIG2 register is set. when ECGEN is
clear, ECLK is low.
The port E4 enable signal (PE4EN) turns on the port E4 logic. Since port E4 is on the same pin as OSC1,
this signal is only active (set) when the external clock function is not desired. Therefore, PE4EN is clear
when ECGON is set. PE4EN is not gated with ICGSTOP, which means that if the ECGON bit is set, the
port E4 logic will remain disabled in stop mode.
The port E3 enable signal (PE3EN) turns on the port E3 logic. Since port E3 is on the same pin as OSC2,
this signal is only active (set) when 2-pin oscillator function is not desired. Therefore, PE3EN is clear when
ECGON and the external crystal enable (EXTXTALEN) bit in the CONFIG2 register are both set. PE3EN
is not gated with ICGSTOP, which means that if ECGON and EXTXTALEN are set, the port E3 logic will
remain disabled in stop mode.
7.3.2 Internal Clock Generator
The internal clock generator, shown in
operates at a nominal frequency (f
an integer multiple of IBASE. This multiple is the ICG multiplier factor (N), which is programmed in the
ICG multiplier register (ICGMR). The internal clock generator is turned off and the output clocks (IBASE
and ICLK) are held low when the internal clock generator enable signal (ICGEN) is clear.
The internal clock generator contains:
80
•
•
•
•
A digitally controlled oscillator
A modulo N divider
A frequency comparator, which contains voltage and current references, a frequency to voltage
converter, and comparators
A digital loop filter
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
NOM
) of 307.2 kHz ± 25 percent, and an internal clock (ICLK) which is
Figure
7-3, creates a low frequency base clock (IBASE), which
Freescale Semiconductor
Related parts for MC908GT16CBE
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MC14560BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12034AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MPIC2112P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14520BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12026AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC145152P2](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC68HC11A0P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MCM6726DWJ10](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC44355](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC13282AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14519BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14495P1](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![SN74LS796N](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC142100CP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC34014P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: