mc68hc11d0cfn2 Freescale Semiconductor, Inc, mc68hc11d0cfn2 Datasheet - Page 122

• Manufacturer Part Number: mc68hc11d0cfn2
• Description: M68hc11 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
9.6 Control Timing
Data Sheet
122
Frequency of operation
E-clock period
Crystal frequency
External oscillator frequency
Processor control setup timet
Reset input pulse width
To guarantee external reset vector
Mode programming setup time
Mode programming hold time
Interrupt pulse width, PW
Wait recovery startup time
Timer pulse width PW
1. V
2. Reset is recognized during the first clock cycle it is held low. Internal circuitry then drives the pin low for four clock cycles,
Minimum input time can be preempted by internal reset
IRQ edge-sensitive mode
Input capture pulse
Accumulator input
otherwise noted.
releases the pin, and samples the pin level two cycles later to determine the source of the interrupt. Refer to
Input/Output (I/O) Ports
DD
= 5.0 Vdc ± 10%, V
Notes:
PA0–PA3
PA0–PA3
3. Maximum pulse accumulator clocking rate is E-clock frequency divided by 2.
1. Rising edge sensitive input
2. Falling edge sensitive input
PA7
PA7
(1) (3)
(2) (3)
(1)
(2)
TIM
Characteristic
(2)
IRQ
= t
SS
cyc
PCSU
= t
for further details.
= 0 Vdc, T
cyc
+ 20 ns
Freescale Semiconductor, Inc.
= 1/4 t
+ 20 ns
PW
For More Information On This Product,
(1)
TIM
A
cyc
= T
+ 50 ns
L
Figure 9-3. Timer Inputs
Go to: www.freescale.com
to T
Electrical Characteristics
H
. All timing is shown with respect to 20% V
Symbol
PW
PW
PW
t
f
t
PCSU
t
t
4 f
XTAL
WRS
t
MPS
MPH
f
cyc
RSTL
O
IRQ
TIM
O
1000
1020
1020
Min
300
dc
dc
10
—
—
1.0 MHz
8
1
2
Max
1.0
4.0
4.0
—
—
—
—
—
—
—
—
4
Min
500
175
520
520
10
dc
—
dc
—
2.0 MHz
8
1
2
DD
and 70% V
Max
2.0
8.0
8.0
MC68HC711D3 — Rev. 2
—
—
—
—
—
—
—
—
4
Min
333
133
353
353
dc
dc
10
—
—
3.0 MHz
8
1
2
DD
, unless
Section 5.
Max
12.0
12.0
MOTOROLA
3.0
—
—
—
—
—
—
—
—
4
MHz
MHz
MHz
Unit
t
t
t
ns
ns
ns
ns
ns
cyc
cyc
cyc