MC68HC705C9ACP Freescale Semiconductor, MC68HC705C9ACP Datasheet - Page 22
MC68HC705C9ACP
Manufacturer Part Number
MC68HC705C9ACP
Description
IC MCU 2.1MHZ 16K OTP 40-DIP
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet
1.MC705C9ACPE.pdf
(118 pages)
Specifications of MC68HC705C9ACP
Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
16KB (16K x 8)
Program Memory Type
OTP
Ram Size
352 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
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Part Number:
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General Description
1.6.1 V
Power is supplied to the MCU using these two pins. V
1.6.2 V
This pin provides the programming voltage to the EPROM array. For normal operation, V
to V
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
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.
22
DD
.
DD
PP
and V
SS
PB0
PB1
PB2
PB3
PA6
PA5
PA4
PA3
PA2
PA1
PA0
for more detail.
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
1
2
3
4
5
6
7
8
9
10
11
Figure 1-8. 44-Pin QFP Pin Assignments
DD
is the positive supply and V
33
32
31
30
29
28
27
26
25
24
23
TCMP
PD5/SS
PD4/SCK
PD3/MOSI
PD2/MISO
PD1/TDO
PD0/RDI
PC0
PC1
PC2
PC3
Freescale Semiconductor
SS
PP
is ground.
should be tied
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