参数资料
型号: MC68HC05K3CP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP16
封装: PLASTIC, DIP-16
文件页数: 120/132页
文件大小: 2612K
代理商: MC68HC05K3CP
Technical Data
MC68HC05K3 — Rev. 5
Personality EEPROM (PEEPROM)
Personality EEPROM (PEEPROM)
Figure 9-4. Serial Programming Connections
9.6.2 Multiple Devices in Serial Program Mode
If the preceding rules in 9.6.1 Serial Programming Connections are
met, multiple MC68HC05K3 devices can be connected in parallel during
serial programming. All the parallel devices can share the same power
supplies for the VDD and VSS; and they may all share the same DATA
and RESET signals. The only signal that must be routed individually to
each device is the SEL/CLK signal. Programming time can be reduced
by setting the data for each unit and then clocking its SEL/CLK low and
remaining low until the data has been received by all other devices. Then
raise the SEL/CLK line high for all units after the required programming
time.
NOTE:
Direct connection of the RESET pin to the VDD supply should be avoided
because as an internal reset source, such as a COP watchdog reset or
an illegal address, reset turns on an internal pulldown device connected
16
-PI
N
PD
IP
PA
C
K
AGE
RESET
1
PB1/OSC3
2
PB0
3
IRQ
4
PA0
5
PA1
6
PA2
7
PA3
8
OSC1
16
OSC2
15
VSS
14
VDD
13
PA7
12
PA6
11
PA5
10
PA4
9
VDD
VSS
R
C
SEL/CLK
RESET
DATA
USED IN
APPLICATION
AS REQUIRED
INPUT SOURCES
USED IN
APPLICATION
USED IN
APPLICATION
AS REQUIRED
F
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
ARCHIVED
BY
FREESCALE
SEMICONDUCT
OR,
INC.
2006
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