MC68HC711E20CFS2 MOTOROLA [Motorola, Inc], MC68HC711E20CFS2 Datasheet - Page 173

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MC68HC711E20CFS2

Manufacturer Part Number
MC68HC711E20CFS2
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
10.10 MC68L11E9/E20 Control Timing
M68HC11E Family — Rev. 5
MOTOROLA
Frequency of operation
E-clock period
Crystal frequency
External oscillator frequency
Processor control setup time
Reset input pulse width
Mode programming setup time
Mode programming hold time
Interrupt pulse width, IRQ edge-sensitive mode
Wait recovery startup time
Timer pulse width input capture pulse accumulator input
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,
t
To guarantee external reset vector
Minimum input time (can be pre-empted by internal reset)
PW
PW
PCSU
otherwise noted
releases the pin, and samples the pin level two cycles later to determine the source of the interrupt. Refer to
Resets and Interrupts
DD
IRQ
TIM
= 1/4 t
= 3.0 Vdc to 5.5 Vdc, V
Notes
= t
= t
1. Rising edge sensitive input
2. Falling edge sensitive input
3. Maximum pulse accumulator clocking rate is E-clock frequency divided by 2.
CYC
CYC
PA[2:0]
PA[2:0]
PA7
PA7
CYC
:
+ 20 ns
+ 20 ns
(1) (3)
(2) (3)
(1)
(2)
+ 75 ns
Characteristic
for further detail.
SS
= 0 Vdc, T
Freescale Semiconductor, Inc.
For More Information On This Product,
PW
TIM
(1) (2)
A
Figure 10-2. Timer Inputs
= T
Go to: www.freescale.com
L
Electrical Characteristics
to T
H
, all timing is shown with respect to 20% V
Symbol
PW
PW
PW
t
f
t
t
t
PCSU
t
XTAL
4 f
MPH
WRS
CYC
MPS
f
RSTL
o
IRQ
TIM
o
1000
1020
1020
Min
325
dc
dc
10
8
1
2
1.0 MHz
MC68L11E9/E20 Control Timing
Max
1.0
4.0
4.0
4
Electrical Characteristics
DD
Min
500
200
520
520
and 70% V
dc
dc
10
8
1
2
2.0 MHz
Max
2.0
8.0
8.0
4
Section 5.
DD
Data Sheet
, unless
MHz
MHz
MHz
Unit
t
t
t
CYC
CYC
CYC
ns
ns
ns
ns
ns
173

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