MC908LJ24CFQE Freescale Semiconductor, MC908LJ24CFQE Datasheet - Page 232

• Manufacturer Part Number: MC908LJ24CFQE
• Description: IC MCU 24K FLASH 8MHZ SPI 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LJ24CFQE

• 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-QFP
• Controller Family/series: HC08
• No. Of I/o's: 48
• Ram Memory Size: 768Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08LJ
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 4
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68EML08LJLKE, ZK-HC08LX-A, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

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