MC68HC05E5 Datasheet, PDF (128/140 Pages) Freescale Semiconductor, Inc – General Release Specification

Freescale Semiconductor, Inc.
Electrical Specifications
14.7 Control Timing
Characteristic
Symbol
Min
Max
Unit
Frequency of Operation
Crystal Option
External Clock Option
f_OSC
—
32.768
kHz
dc
4.2
MHz
Internal Operating Frequency
Crystal (f_OSC ÷ 2)
External Clock (f_OSC ÷ 2)
f_OP
—
16.384
kHz
dc
2.1
MHz
Cycle Time
t_CYC
480
—
ns
RESET Pulse Width
t_RL
1.5
—
t_CYC
Interrupt Pulse Width Low (Edge-Triggered)
t_ILIH
125
—
ns
Interrupt Pulse Period
t_ILIL
see Note 2
—
t_CYC
OSC1 Pulse Width
t_OH, t_OL
90
—
ns
PLL Startup Stabilization Time
t_PLLS
50
—
ms
NOTES:
1. V_DD = 5.0 Vdc ± 10%, V_SS = 0 Vdc, T_A = 0 ^oC to +70 ^oC, unless otherwise noted
2. The minimum period, t_ILIL, should not be less than the number of cycle times it takes to execute the
interrupt service routine plus 19 t_cyc.
IRQ
IRQ1
...
IRQn
IRQ
(MCU)
t_ILIH
t_ILIH
t_ILIH
NORMALLY USED
WITH WIRE-ORed
CONNECTION
Figure 14-3. External Interrupt Mode Diagram
General Release Specification
Electrical Specifications
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MC68HC05E5 — Rev. 1.0