MC68HC05P4A Datasheet, PDF (63/72 Pages) Advanced Analogic Technologies – Microcontrollers

5.0-Volt Control Timing
1
2
SCK
SDO
3
SDI
BIT 0
BIT 0
BIT 1
4
BIT 1
BIT 6
BIT 6
5
BIT 7
6
BIT 7
Figure 12-1. SIOP Timing Diagram
12.9 5.0-Volt Control Timing
Characteristic
Symbol
Min
Max
Unit
Frequency of operation
Crystal option
External clock option
f_osc
—
4.2
MHz
dc
4.2
Internal operating frequency
Crystal (f_osc ÷ 2)
External Clock (f_osc ÷ 2)
f_op
—
2.1
MHz
dc
2.1
Cycle time
t_cyc
480
—
ns
Crystal oscillator startup time
t_OXOV
—
100
ms
Stop recovery startup time (crystal oscillator)
t_ILCH
—
100
ms
RESET pulse width
t_RL
1.5
—
t_cyc
Interrupt pulse width low (edge-triggered)
t_ILIH
125
—
ns
Interrupt pulse period
t_ILIL
*
—
t_cyc
OSC1 pulse width
t_OH, t_OL
90
—
ns
Note:
1. V_DD = 5.0 Vdc ± 10%, V_SS = 0 Vdc, T_A = –40 °C to +85 °C, unless otherwise noted
*The minimum period tILIL should not be less than the number of cycles it takes to execute the interrupt service routine plus 19 tcyc.
MC68HC05P4A Data Sheet, Rev. 7.1
Freescale Semiconductor
63