MC68HC711E20CFN2 Freescale Semiconductor, MC68HC711E20CFN2 Datasheet - Page 32

• Manufacturer Part Number: MC68HC711E20CFN2
• Description: IC MCU 20K 2MHZ OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711E20CFN2

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 2MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: OTP
• Eeprom Size: 512 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Pin Descriptions
2.3 V
Technical Data
32
DD
and V
SS
Power is supplied to the MCU through V
supply, V
power supply. Low-voltage devices in the E series operate at
3.0–5.5 volts.
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 capacitors that have good
Figure 2-5. Pin Assignments for 48-Pin DIP (MC68HC811E2)
SS
is ground. The MCU operates from a single 5-volt (nominal)
PA3/OC5/IC4/OC1
PA6/OC2/OC1
PA5/OC3/OC1
PA4/OC4/OC1
MODB/V
PA7/PAI/OC1
PB7/ADDR15
PB6/ADDR14
PB5/ADDR13
PB4/ADDR12
PB3/ADDR11
PB2/ADDR10
PB1/ADDR9
PB0/ADDR8
Pin Descriptions
PE0/AN0
PE1/AN1
PE2/AN2
PE3/AN3
PA2/IC1
PA1/IC2
PA0/IC3
STBY
V
V
V
RH
SS
RL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
23
24
21
MC68HC811E2
DD
and V
37
28
48
47
46
45
44
43
42
41
40
39
38
36
35
34
33
32
31
30
29
27
26
25
M68HC11E Family — Rev. 3.2
V
PD5/SS
PD4/SCK
PD3/MOSI
PD2/MISO
PD1/TxD
PD0/RxD
IRQ
XIRQ
RESET
PC7/ADDR7/DATA7
PC6/ADDR6/DATA6
PC5/ADDR5/DATA5
PC4/ADDR4/DATA4
PC3/ADDR3/DATA3
PC2/ADDR2/DATA2
PC1/ADDR1/DATA1
PC0/ADDR0/DATA0
XTAL
EXTAL
STRB/R/W
E
STRA/AS
MODA/LIR
DD
SS
. V
DD
is the power
MOTOROLA