參數(shù)資料
型號: MC68HC705C9ACP
廠商: Freescale Semiconductor
文件頁數(shù): 34/118頁
文件大小: 0K
描述: IC MCU 2.1MHZ 16K OTP 40-DIP
標準包裝: 9
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 2.1MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 24
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: OTP
RAM 容量: 352 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
General Description
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
22
Freescale Semiconductor
Figure 1-8. 44-Pin QFP Pin Assignments
1.6.1 VDD and VSS
Power is supplied to the MCU using these two pins. VDD is the positive supply and VSS is ground.
1.6.2 VPP
This pin provides the programming voltage to the EPROM array. For normal operation, VPP should be tied
to VDD.
1.6.3 IRQ
This interrupt pin has an option that provides two different choices of interrupt triggering sensitivity. The
IRQ pin contains an internal Schmitt trigger as part of its input to improve noise immunity. Refer to
Chapter 4 Interrupts for more detail.
1.6.4 OSC1 andOSC2
These pins provide control input for an on-chip clock oscillator circuit. A crystal connected to these pins
provides a system clock. The internal frequency is one-half the crystal frequency.
33
32
31
30
29
28
27
26
25
24
23
PC3
PC2
PC1
PC0
PD0/RDI
PD1/TDO
PD2/MISO
PD3/MOSI
PD4/SCK
PD5/SS
TCMP
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
44
43
42
41
40
38
37
36
35
34
PD7
PC4
PC5
PC6
PC7
V
SS
N/C
PB7
PB6
PB5
PB4
TCAP
OSC2
OSC1
V
DD
N/C
RESET
IRQ
V
PP
PA
7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PB0
PB1
PB2
PB3
39
N/C
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