MC68HC711xxxx Motorola, MC68HC711xxxx Datasheet - Page 178

• Manufacturer Part Number: MC68HC711xxxx
• Description: Microcontrollers
• Manufacturer: Motorola

Electrical Characteristics
10.11 Peripheral Port Timing
Data Sheet
178
Frequency of operation
E-clock period
Peripheral data setup time
Peripheral data hold time
Delay time, peripheral data write
Port C input data setup time
Port C input data hold time
Delay time, E fall to STRB
Setup time, STRA asserted to E fall
Delay time, STRA asserted to port C data output valid
Hold time, STRA negated to port C data
3-state hold time
1. V
2. Ports C and D timing is valid for active drive. (CWOM and DWOM bits are not set in PIOC and SPCR registers,
3. If this setup time is met, STRB acknowledges in the next cycle. If it is not met, the response may be delayed one more cycle.
E-clock frequency
MCU read of ports A, C, D, and E
MCU read of ports A, C, D, and E
t
t
PWD
DEB
MCU writes to port A
MCU writes to ports B, C, and D
otherwise noted
respectively.)
DD
= 1/4 t
= 1/4 t
= 5.0 Vdc ± 10%, V
CYC
CYC
+ 100 ns
+ 100 ns
Characteristic
SS
= 0 Vdc, T
(1) (2)
(3)
A
= T
L
to T
Electrical Characteristics
H
, all timing is shown with respect to 20% V
Symbol
t
t
t
PDSU
t
t
t
t
t
t
PWD
CYC
PDH
DEB
PCD
PCH
AES
PCZ
t
t
f
IS
IH
o
1000
Min
100
100
dc
50
60
10
—
—
—
—
—
0
1.0 MHz
Max
200
350
350
100
150
1.0
—
—
—
—
—
—
—
Min
500
100
100
dc
50
—
—
60
—
—
10
—
0
2.0 MHz
Max
200
225
225
100
150
2.0
—
—
—
—
—
—
—
DD
M68HC11E Family — Rev. 5
and 70% V
Min
333
100
100
dc
50
60
10
—
—
—
—
—
0
3.0 MHz
DD
Max
200
183
183
100
150
3.0
—
—
—
—
—
—
—
, unless
MOTOROLA
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns