MC908GT16CBE Freescale Semiconductor, MC908GT16CBE Datasheet - Page 99
![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
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ICGON — Internal Clock Generator On Bit
ICGS — Internal Clock Generator Stable Bit
ECGON — External Clock Generator On Bit
ECGS — External Clock Generator Stable Bit
7.7.2 ICG Multiplier Register
N6:N0 — ICG Multiplier Factor Bits
Freescale Semiconductor
This read/write bit enables the internal clock generator. ICGON can be cleared when the CS bit has
been set and the CMON bit has been clear for at least one bus cycle. ICGON is forced set when the
CMON bit is set, the CS bit is clear, or during reset.
This read-only bit indicates when the internal clock generator has determined that the internal clock
(ICLK) is within about 5 percent of the desired value. This bit is forced clear when the clock monitor
determines the ICLK is inactive, when ICGON is clear, when the ICG multiplier register (ICGMR) is
written, when the ICG TRIM register (ICGTR) is written, during stop mode with OSCENINSTOP low,
or during reset.
This read/write bit enables the external clock generator. ECGON can be cleared when the CS and
CMON bits have been clear for at least one bus cycle. ECGON is forced set when the CMON bit or the
CS bit is set. ECGON is forced clear during reset.
This read-only bit indicates when at least 4096 external clock (ECLK) cycles have elapsed since the
external clock generator was enabled. This is not an assurance of the stability of ECLK but is meant
to provide a startup delay. This bit is forced clear when the clock monitor determines ECLK is inactive,
when ECGON is clear, during stop mode with OSCENINSTOP low, or during reset.
These read/write bits change the multiplier used by the internal clock generator. The internal clock
(ICLK) will be:
A value of $00 in this register is interpreted the same as a value of $01. This register cannot be written
when the CMON bit is set. Reset sets this factor to $15 (decimal 21) for default frequency of 6.45 MHz
± 25 percent (1.613 MHz ± 25 percent bus).
1 = Internal clock generator enabled
0 = Internal clock generator disabled
1 = Internal clock is within 5 percent of the desired value.
0 = Internal clock may not be within 5 percent of the desired value.
1 = External clock generator enabled
0 = External clock generator disabled
1 = 4096 ECLK cycles have elapsed since ECGON was set.
0 = External clock is unstable, inactive, or disabled.
(307.2 kHz ± 25 percent) * N
Address: $0037
Reset:
Read:
Write:
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
Bit 7
0
Figure 7-13. ICG Multiplier Register (ICGMR)
= Unimplemented
N6
0
6
N5
5
0
N4
4
1
N3
3
0
N2
2
1
N1
Input/Output (I/O) Registers
1
0
Bit 0
N0
1
99
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