MC68HC908AB32CFU Freescale Semiconductor, MC68HC908AB32CFU Datasheet - Page 378

• Manufacturer Part Number: MC68HC908AB32CFU
• Description: IC MCU 8MHZ 32K FLASH 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AB32CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Electrical Specifications
23.8 5.0-V Control Timing
23.9 Timer Interface Module Characteristics
Technical Data
378
Input capture pulse width
Input clock pulse width
Characteristic
Notes:
Frequency of operation
Internal operating frequency
RESET 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.
5. Some modules may require a minimum frequency greater than dc for proper operation.
6. Minimum pulse width reset is guaranteed to be recognized. It is possible for a smaller pulse
7. Minimum pulse width is for guaranteed interrupt. It is possible for a smaller pulse width to
8. Minimum pulse width is for guaranteed interrupt. It is possible for a smaller pulse width to
9. The minimum period, t
Crystal option
External clock option
(Edge-triggered)
Input capture pulse width
Input capture period
See appropriate table for this information.
See appropriate table for this information.
width to cause a reset.
be recognized.
be recognized. The minimum period, t
cycles it takes to execute the interrupt service routine plus TBD t
execute the interrupt service routine plus TBD t
DD
23.12 Clock Generation Module Characteristics
= 5.0 Vdc
Characteristic
Electrical Specifications
(2)
±
10%, V
(3)
ILIL
SS
(1)
or t
= 0 Vdc, T
t TCH , t TCL
TLTL
(6)
(7)
t TIH , t TIL
Symbol
, should not be less than the number of cycles it takes to
ILIL
A
= T
Symbol
or t
t
TH,
L
t
f
f osc
t
t
t
TLTL
BUS
ILIH
ILIL
TLTL
IRL
to T
(1/f
t
cyc
TL
H
, should not be less than the number of
BUS
Min
125
.
, unless otherwise noted
)+5
for more information.
MC68HC908AB32
Note
Note
Note
dc
Min
1.5
1.5
Freescale Semiconductor
1
2
(4)
(5)
(8)
(9)
cyc
.
Max
—
—
Max
33.6
8.4
8.4
—
—
—
—
—
—
Rev. 1.1
Unit
ns
ns
MHz
MHz
MHz
Unit
t
t
t
t
t
cyc
cyc
cyc
cyc
cyc