MC908GR4CDWE Freescale Semiconductor, MC908GR4CDWE Datasheet - Page 253

• Manufacturer Part Number: MC908GR4CDWE
• Description: IC MCU 4K FLASH 8MHZ 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908GR4CDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Controller Family/series: HC08
• No. Of I/o's: 21
• Ram Memory Size: 384Byte
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08GR
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8.2 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• 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: 8 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

23.6 5.0 V Control Timing
Freescale Semiconductor
Frequency of operation
Internal operating frequency
Internal clock period (1/f
RST input pulse width low
IRQ interrupt pulse width low
IRQ interrupt pulse period
16-bit timer
1. V
2. See
3. No more than 10% duty cycle deviation from 50%
4. Some modules may require a minimum frequency greater than dc for proper operation. See appropriate table for this
5. Minimum pulse width reset is guaranteed to be recognized. It is possible for a smaller pulse width to cause a reset.
6. Minimum pulse width is for guaranteed interrupt. It is possible for a smaller pulse width to be recognized.
7. Minimum pulse width is for guaranteed interrupt. It is possible for a smaller pulse width to be recognized.
8. The minimum period, t
Input capture pulse width
Input capture period
Crystal option
External clock option
(edge-triggered)
information.
routine plus t
SS
= 0 Vdc; timing shown with respect to 20% V
23.8 Clock Generation Module Characteristics
(7)
cyc
.
(2)
(3)
OP
ILIL
(5)
)
Characteristic
(6)
or t
TLTL
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
, should not be less than the number of cycles it takes to execute the interrupt service
(1)
DD
for more information.
and 70% V
SS
unless otherwise noted.
Symbol
t
TH,
t
f
t
t
t
t
TLTL
osc
f
ILIH
IRL
ILIL
op
cyc
t
TL
Note 8
Note 8
dc
Min
122
32
50
50
—
(4)
5.0 V Control Timing
Max
32.8
100
8.2
—
—
—
—
—
—
Unit
MHz
MHz
kHz
t
t
ns
ns
ns
ns
cyc
cyc
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