MC68HC705P9 Datasheet, PDF (146/160 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Electrical Specifications
12.11 5.0-Volt Control Timing
Characteristic
Symbol Min Max Unit
Oscillator Frequency
Crystal
External Clock
f_OSC
—
4.2 MHz
dc 4.2
Internal Operating Frequency (f_OSC ÷ 2)
Crystal
External Clock
f_OP
—
2.1 MHz
dc 2.1
Cycle Time (1 ÷ f_OP)
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
Timer
Resolution⁽¹⁾
Input Capture Pulse Width
Input Capture Pulse Period
t_RESL
t_H, t_L
t_TLTL
4.0
—
125 _—
Note^{(2) —}
t_CYC
ns
t_CYC
Interrupt Pulse Width Low (Edge-Triggered)
t_ILIH
125 — ns
Interrupt Pulse Period
t_ILIL
Note^{(3) — t}CYC
OSC1 Pulse Width
t_OH, t_OL
90
— ns
RC Oscillator Stabilization Time
t_RCON
—
5 µs
ADC On Current Stabilization Time
t_ADON
— 100 µs
1. A 2-bit prescaler in the timer is the limiting factor as it counts 4 t_CYC
2. The minimum t_TLTL should not be less than the number of interrupt service routine cycles plus
19 t_CYC
3. The minimum t_ILIL should not be less than the number of interrupt service routine cycles plus
19 t_CYC
Technical Data
146
Electrical Specifications
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MC68HC705P9 — Rev. 4.0
MOTOROLA