MC68HC811E2FN Freescale Semiconductor, MC68HC811E2FN Datasheet - Page 157

• Manufacturer Part Number: MC68HC811E2FN
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC811E2FN

• Cpu Family: HC11
• Device Core Size: 8b
• Frequency (max): 4MHz
• Interface Type: SCI/SPI
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Total Internal Ram Size: 256Byte
• # I/os (max): 38
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 8-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 52
• Package Type: PLCC
• Lead Free Status / Rohs Status: Supplier Unconfirmed

10.10 MC68L11E9/E20 Control Timing
Freescale Semiconductor
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
= 3.0 Vdc to 5.5 Vdc, V
Notes
= 1/4 t
= 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.
PA[2:0]
PA[2:0]
CYC
CYC
PA7
PA7
:
CYC
(1) (3)
(2) (3)
+ 20 ns
+ 20 ns
(1)
(2)
+ 75 ns
Characteristic
for further detail.
SS
= 0 Vdc, T
PW
TIM
(1) (2)
M68HC11E Family Data Sheet, Rev. 5.1
A
Figure 10-2. Timer Inputs
= T
L
to T
H
, all timing is shown with respect to 20% V
Symbol
PW
PW
PW
t
f
t
t
PCSU
t
t
XTAL
WRS
4 f
MPS
MPH
CYC
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
DD
Min
500
200
520
520
dc
—
dc
10
—
and 70% V
8
1
2
2.0 MHz
Max
2.0
8.0
8.0
—
—
—
—
—
—
—
—
4
DD
Chapter 5
, unless
MHz
MHz
MHz
Unit
t
t
t
CYC
CYC
CYC
ns
ns
ns
ns
ns
157