MC68HC908LB8CPE Freescale Semiconductor, MC68HC908LB8CPE Datasheet - Page 225

• Manufacturer Part Number: MC68HC908LB8CPE
• Description: IC MCU 8K FLASH 8MHZ 20DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908LB8CPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVR, POR, PWM
• Number Of I /o: 18
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 7x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

20.8 5.0-Volt ADC Characteristics
Freescale Semiconductor
NOTES:
Supply voltage
Input voltages
Resolution
Absolute accuracy
ADC internal clock
Conversion range
Power-up time
Conversion time
Sample time
Zero input reading
Full-scale reading
Input capacitance
Input leakage
1. Source impedances greater than 10 kΩ adversely affect internal RC charging time during input sampling.
2. Zero-input/full-scale reading requires sufficient decoupling measures for accurate conversions.
3. The external system error caused by input leakage current is approximately equal to the product of R source and input
current.
14
12
10
8
6
4
2
0
Characteristic
(1)
0
(3)
(3)
(2)
10
Figure 20-2. RC versus Frequency (5 Volts @ 25°C)
20
Resistor, R
Symbol
MC68HC908LB8 Data Sheet, Rev. 1
V
V
t
f
C
ADPU
t
t
Z
B
A
R
F
DDAD
ADIC
ADC
ADIN
ADS
—
ADI
ADI
ADI
AD
AD
AD
EXT
(kΩ)
(V
30
DD
± 0.5
Min
V
V
4.5
0.5
FE
16
16
00
—
—
8
5
SS
SS
min)
(V
40
DD
1.048
± 1.5
Max
V
V
5.5
± 1
FF
17
01
—
—
8
5 V @ 25°C
DD
DD
8
max)
50
t
t
t
ADIC
ADIC
ADIC
MHz
Unit
LSB
Hex
Hex
Bits
µA
pF
V
V
V
cycles
cycles
cycles
V
5.0-Volt ADC Characteristics
DD
R
Includes quantization
tested only at 1 MHz
EXT
MCU
t
t
t
t
ADIC
ADIC
ADIC
ADIC
OSC1
Comments
Not tested
V
V
IN
IN
= 1/f
= 1/f
= 1/f
= 1/f
—
—
—
—
= V
—
= V
DD
SS
ADIC
ADIC
ADIC
ADIC
,
225