參數(shù)資料
型號: MC68HC705RC16P
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 34/120頁
文件大小: 3565K
代理商: MC68HC705RC16P
NON-DISCLOSURE
AGREEMENT
REQUIRED
General Description
General Release Specification
MC68HC705RC16 Rev. 3.0
General Description
Figure 1-4. 44-Pin PLCC Pinout
1.5.1 VDD and VSS
Power is supplied to the microcontroller’s digital circuits using these two
pins. V
DD is the positive supply and VSS is ground.
1.5.2 IRQ/VPP (Maskable Interrupt Request)
In addition to suppling the EPROM with the required programming
voltage, this pin has a mask option as specified by the user that provides
one of two different choices of interrupt triggering sensitivity. The options
are:
1. Negative edge-sensitive triggering only
2. Both negative edge-sensitive and level-sensitive triggering.
PC6
NC
PC5
NC
PB7
PB6
PB5
PB4
NC
PC7
PA0
PA1
NC
RESET
IRO
VSS
LPRST
NC
PC4
PC3
PC2
NC
OSC1
OSC2
V
DD
IRQ
NC
PB3
PB2
PB1
PB0
NC
PA2
PA3
PA4
PA5
NC
PA6
PA7
PC0
PC1
NC
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
39
38
37
36
35
34
33
32
31
30
29
6
5
4
3
2
1
44
43
42
41
40
NOTE: NC = No Connect
All no connects should be tied to an appropriate logic
level (either VDD or VSS).
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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