參數(shù)資料
型號： MC68HC705E6
廠商： 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述： HCMOS Microcontroller Unit
中文描述： HCMOS微控制器
文件頁數(shù)： 111/140頁
文件大小： 788K
代理商： MC68HC705E6
Electrical Specifications
AC electrical characteristics
MC68HC05E6 — Rev. 1.0
Electrical Specifications
For More Information On This Product,
Go to: www.freescale.com
7-elec
AC electrical characteristics
Table 23 AC electrical characteristics for 5V operation
(V
DD
= 5.0 Vdc
±
10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
)
Characteristic
Symbol
Min
Max
Unit
Frequency of operation
Crystal
External clock
f
OSC
f
OSC
—
dc
4.2
4.2
MHz
MHz
Internal operating frequency
Crystal (f
OSC
/2)
External clock (f
OSC
/2)
Processor cycle time
fOP
fOP
—
dc
2.1
2.1
MHz
MHz
tCYC
480
—
ns
Ceramic resonator start-up time
t
OCOV
t
ICCH
t
OH
, t
OL
t
RL
t
EBYT
t
EBLOCK
t
EBULK
t
EEPGM
t
FPV
t
ADRC
t
ADON
—
10
ms
Ceramic resonator STOP recovery start-up time
—
10
ms
OSC1 pulse width
90
—
ns
RESET
pulse width
1.5
—
t
CYC
ms
EEPROM byte erase time
—
10
EEPROM block erase time
—
100
ms
EEPROM bulk erase time
—
200
ms
EEPROM byte program time
—
10
ms
EEPROM programming voltage fall time
RC oscillator stabilization (EEPROM, A/D)
(1)
—
10
μ
s
μ
s
μ
s
1. For bus frequencies less than 1MHz, the internal RC oscillator should be used when programming the EEPROM.
2. Since the 2-bit prescaler in the timer must count four external cycles (t
CYC
), this is the limiting factor in determining the
timer resolution.
3. The minimum period t
TLTL
should not be less than the number of cycles it takes to execute the capture interrupt service
routine plus 24 t
CYC
.
4. The minimum period t
ILIL
should not be less than the number of cycles it takes to execute the interrupt service routine
plus 21 t
CYC
.
—
5
A/D current stabilization time
—
100
16-bit timer
Resolution
(2)
Input capture pulse width
Input capture pulse period
t
RESL
t
TLTH
t
TLTL
tPORL
4
250
(3)
—
—
—
t
CYC
ns
t
CYC
t
CYC
ns
Power-on reset delay
4064
4064
Interrupt pulse width low (edge-triggered)
tILIH
250
—
Interrupt pulse period (see
Figure 30
)
tILIL
(4)
—
tCYC
F
Freescale Semiconductor, Inc.
n
.
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