MC68HC908LJ24CPK Freescale Semiconductor, MC68HC908LJ24CPK Datasheet - Page 232
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MC68HC908LJ24CPK
Manufacturer Part Number
MC68HC908LJ24CPK
Description
IC MCU 24K FLASH 8MHZ SPI 80LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908LK24CFUE.pdf
(464 pages)
Specifications of MC68HC908LJ24CPK
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SPI
Peripherals
LCD, LVD, POR, PWM
Number Of I /o
48
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908LJ24CPK
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68HC908LJ24CPK
Manufacturer:
FRE/MOT
Quantity:
20 000
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Real Time Clock (RTC)
Data Sheet
232
OUTF[1:0] — Calibration Mode CALOUT Pin Output Selection
RTCWE[1:0] — RTC Module Write Enable
OUTF[1:0]
These two bits select the output option for the CALOUT pin.
When CAL = 0, OUTF[1:0] is always 00.
These two write-only bits control the write-protect function of several
RTC registers and bits. After a reset, write-protect is disabled,
allowing full write access to RTC registers and bits. These two bits
always read as 0.
To enable write-protect, perform the following sequence:
To disable write-protect, perform the following sequence:
To disable write-protect from an unsure protection state, first perform
the enable write-protect sequence, followed by the disable write-
protect sequence.
1. Write %10 to RTCWE[1:0] bits
2. Write %10 to RTCWE[1:0] bits
1. Write %00 to RTCWE[1:0] bits
2. Write %01 to RTCWE[1:0] bits
3. Write %11 to RTCWE[1:0] bits
4. Write %10 to RTCWE[1:0] bits
00
01
10
11
Real Time Clock (RTC)
CALOUT pin is disconnected.
CALOUT pin outputs compensated 1-Hz.
CALOUT pin outputs CGMXCLK clock.
Reserved
Table 12-4. CALOUT Pin Output Option
CALOUT Pin Output
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
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