MC68HC908LB8CPE Freescale Semiconductor, MC68HC908LB8CPE Datasheet - Page 130
MC68HC908LB8CPE
Manufacturer Part Number
MC68HC908LB8CPE
Description
IC MCU 8K FLASH 8MHZ 20DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908LB8CDWE.pdf
(234 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908LB8CPE
Manufacturer:
IR
Quantity:
10
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Oscillator Module (OSC)
13.8 Input/Output (I/O) Registers
The oscillator module contains these two registers:
13.8.1 Oscillator Status Register
The oscillator status register (OSCSTAT) contains the bits for switching from internal to external clock
sources.
ECGON — External Clock Generator On Bit
130
1. Oscillator status register (OSCSTAT)
2. Oscillator trim register (OSCTRIM)
This read/write bit enables external clock generator, so that the switching process can be initiated. This
bit is forced low during reset. This bit is ignored in monitor mode when the internal oscillator is
bypassed.
1 = External clock generator enabled
0 = External clock generator disabled
Address: $0036
Reset:
Read:
Write:
Bit 7
R
R
Figure 13-4. Oscillator Status Register (OSCSTAT)
0
OSCOPT1
= Reserved
0
0
1
1
R
6
0
Table 13-2. Oscillator Modes
MC68HC908LB8 Data Sheet, Rev. 1
OSCOPT0
R
5
0
0
1
0
1
R
4
0
External Oscillator
Oscillator Modes
Internal Oscillator
External Crystal
External RC
R
3
0
R
2
0
ECGON
1
0
Freescale Semiconductor
ECGST
Bit 0
0
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