MC68HC908GP32 Datasheet, PDF (375/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
Electrical Specifications
3.0-V Control Timing
23.9 3.0-V Control Timing
Characteristic⁽¹⁾
Symbol
Min
Max
Unit
Frequency of operation⁽²⁾
Crystal option
External clock option⁽³⁾
f_OSC
32
dc⁽⁴⁾
100
kHz
16.4
MHz
Internal operating frequency
f_OP (f_BUS)
—
4.1
MHz
Internal clock period (1/f_OP)
RST input pulse width low⁽⁵⁾
IRQ interrupt pulse width low⁽⁶⁾
(edge-triggered)
t_CYC
244
t_IRL
125
t_ILIH
125
—
ns
—
ns
—
ns
IRQ interrupt pulse period
t_ILIL
Note 8
—
t_CYC
16-bit timer⁽⁷⁾
Input capture pulse width
Input capture period
t_TH,t_TL
t_TLTL
Note 8
—
ns
—
t_CYC
Notes:
1. V_SS = 0 Vdc; timing shown with respect to 20% V_DD and 70% V_DD unless otherwise noted.
2. See 23.17 Clock Generation Module Characteristics for more information.
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 information.
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_ILIL or t_TLTL, should not be less than the number of cycles it takes to
execute the interrupt service routine plus t_CYC.
MC68HC908GP32•MC68HC08GP32 — Rev. 6
MOTOROLA
Electrical Specifications
For More Information On This Product,
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Technical Data
373