MC68HC711D3CFNE2 Freescale Semiconductor, MC68HC711D3CFNE2 Datasheet - Page 14

IC MCU 8BIT 3MHZ 44-PLCC

MC68HC711D3CFNE2

Manufacturer Part Number
MC68HC711D3CFNE2
Description
IC MCU 8BIT 3MHZ 44-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheets

Specifications of MC68HC711D3CFNE2

Core Processor
HC11
Core Size
8-Bit
Speed
2MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
26
Program Memory Size
4KB (4K x 8)
Program Memory Type
OTP
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-

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Part Number:
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2.1 V
2.2 Reset (RESET)
2-2
Power is supplied to the MCU through V
V
must be grounded with V
supply. Very fast signal transitions occur on the MCU pins. The short rise and fall times
place high, short duration current demands on the power supply. To prevent noise
problems, provide good power supply bypassing at the MCU. Also, use bypass capac-
itors that have good high-frequency characteristics and situate them as close to the
MCU as possible. Bypass requirements vary, depending on how heavily the MCU pins
are loaded.
An active low bidirectional control signal, RESET, acts as an input to initialize the MCU
to a known startup state. It also acts as an open-drain output to indicate that an internal
failure has been detected in either the clock monitor or COP watchdog circuit. The
CPU distinguishes between internal and external reset conditions by sensing whether
the reset pin rises to a logic one in less than two E-clock cycles after a reset has oc-
curred. It is not advisable to connect an external resistor-capacitor (RC) power-up de-
lay circuit to the reset pin of M68HC11 devices because the circuit charge time
SS
DD
, V
is ground. EV
SS
, and EV
Figure 2-2 Pin Assignments for 40-Pin DIP
SS
SS
Freescale Semiconductor, Inc.
PC0/ADDR0
PC1/ADDR1
PC2/ADDR2
PC3/ADDR3
PC4/ADDR4
PC5/ADDR5
PC6/ADDR6
PC7/ADDR7
, available on the 44-pin PLCC, is an additional ground pin that
PD2/MISO
PD3/MOSI
XIRQ/V
For More Information On This Product,
PD4/SCK
PD7/R/W
PD0/RxD
PD1/TxD
PD6/AS
PD5/SS
RESET
SS
V
IRQ
SS
PP
. The MCU operates from a single 5-volt (nominal) power
Go to: www.freescale.com
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PIN DESCRIPTIONS
MC68HC(7)11D3
DD
and V
29
40
39
38
37
36
35
34
33
32
31
30
28
27
26
25
24
23
22
21
XTAL
EXTAL
E
MODA/LIR
MODB/V
PB0/ADDR8
PB1/ADDR9
PB2/ADDR10
PB3/ADDR11
PB4/ADDR12
PB5/ADDR13
PB6/ADDR14
PB7/ADDR15
PA0/IC3
PA1/IC2
PA2/IC1
PA3/IC4/OC5/OC1
PA5/OC3/OC1
PA7/PAI/OC1
V
DD
SS
. V
STBY
SS
is the power supply, and
D3 40-PIN DIP
TECHNICAL DATA

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