mc68hc912bd32 Freescale Semiconductor, Inc, mc68hc912bd32 Datasheet - Page 268

• Manufacturer Part Number: mc68hc912bd32
• Description: 16-bit Device Composed Of Standard On-chip Peripherals
• Manufacturer: Freescale Semiconductor, Inc

Preliminary Electrical Characteristics
MC68HC912BD32 Rev 1.0
Frequency of operation
E-clock period
Crystal frequency
External oscillator frequency
Processor control setup time
Reset input pulse width
To guarantee external reset vector
Minimum input time (can be preempted by internal reset)
Mode programming setup time
Mode programming hold time
Interrupt pulse width, IRQ edge-sensitive mode
Wait recovery startup time
Timer input capture pulse width
Pulse accumulator pulse width
NOTES:
1. Ri s i n g edge sensi t i v e i n put
2. Fal l i n g edge sensi t i v e i n put
PT7
PT7
PT[7:0]
PT[7:0]
PW
1
2
IRQ
1
2
2t
cyc
20
1. RESET is recognized during the first clock cycle it is held low. Internal circuitry then drives
Characteristic
PW
PW
Freescale Semiconductor, Inc.
the pin low for 16 clock cycles, releases the pin, and samples the pin level 8 cycles later
to determine the source of the interrupt.
TIM
PA
For More Information On This Product,
Preliminary Electrical Characteristics
t
Table 76 Control Timing
PCSU
Figure 59 Timer Inputs
Go to: www.freescale.com
t
PW
WRS
TIM
t
cyc
= 4t
2 20
cyc
2t
cyc
20
Symbol
PW
PW
PW
PW
t
f
t
t
PCSU
t
XTAL
WRS
t
MPS
MPH
4f
cyc
f
RSTL
o
IRQ
TIM
o
PA
TBD
Min
100
220
220
dc
dc
70
32
10
10.0 MHz
—
—
2
4
Max
10.0
40.0
40.0
TBD
—
—
—
—
—
—
—
—
—
MHz
MHz
MHz
Unit
t
t
t
t
ns
ns
ns
ns
ns
ns
cyc
cyc
cyc
cyc
10-elec