MC68HC711E20CFN2 Freescale Semiconductor, MC68HC711E20CFN2 Datasheet - Page 216

• 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

Analog-to-Digital (A/D) Converter
10.6 Channel Assignments
10.7 Single-Channel Operation
Technical Data
216
The multiplexer allows the A/D converter to select one of 16 analog
signals. Eight of these channels correspond to port E input lines to the
MCU, four of the channels are internal reference points or test functions,
and four channels are reserved. Refer to
The two types of single-channel operation are:
1. When SCAN = 0, the single selected channel is converted four
2. When SCAN = 1, conversions continue to be performed on the
consecutive times. The first result is stored in A/D result register 1
(ADR1), and the fourth result is stored in ADR4. After the fourth
conversion is complete, all conversion activity is halted until a new
conversion command is written to the ADCTL register.
selected channel with the fifth conversion being stored in register
ADR1 (overwriting the first conversion result), the sixth conversion
overwriting ADR2, and so on.
Analog-to-Digital (A/D) Converter
1. Used for factory testing
Table 10-1. Converter Channel Assignments
Channel
Number
9 – 12
13
14
15
16
1
2
3
4
5
6
7
8
Reserved
Reserved
(V
Channel
Signal
V
V
RH
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
RH
RL
)/2
(1)
(1)
(1)
(1)
Table
M68HC11E Family — Rev. 3.2
Result in ADRx
10-1.
if MULT = 1
ADR1
ADR2
ADR3
ADR4
ADR1
ADR2
ADR3
ADR4
ADR1
ADR2
ADR3
ADR4
—
MOTOROLA