MC68HC908LK24CFU Freescale Semiconductor, MC68HC908LK24CFU Datasheet - Page 222
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MC68HC908LK24CFU
Manufacturer Part Number
MC68HC908LK24CFU
Description
IC MCU 24K FLASH 8MHZ SPI 64-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908LK24CFUE.pdf
(464 pages)
Specifications of MC68HC908LK24CFU
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SPI
Peripherals
LCD, LVD, POR, PWM
Number Of I /o
40
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
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908LK24CFU
Manufacturer:
FREESCALE Semiconductor
Quantity:
489
Company:
Part Number:
MC68HC908LK24CFU
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Real Time Clock (RTC)
Data Sheet
222
(32.768kHz)
CGMXCLK
CALOUT
CALIN
REFERENCE
1Hz
1/100 SECONDS
÷ 256
CHRONOGRAPH DATA REGISTER
÷ 2
ALARM MINUTE REGISTER
ALARM HOUR REGISTER
COMPENSATION CIRCUIT
CLOCK CALIBRATION
COMPARATOR
COMPARATOR
÷ 2
×
AND
25
32
Figure 12-2. RTC Block Diagram
+
16
32
÷ 2
Real Time Clock (RTC)
÷ 2
1Hz
DAY-OF-WEEK COUNTER REGISTER
CHRE
SECOND COUNTER REGISTER
MINUTE COUNTER REGISTER
MONTH COUNTER REGISTER
HOUR COUNTER REGISTER
÷ 2
YEAR COUNTER REGISTER
CHRONOGRAPH COUNTER
DAY COUNTER REGISTER
128 Hz
TO CLOCK
COUNTERS
CHRCLR
÷ 2
16Hz
2Hz
4Hz
8Hz
FROM CLOCK
COMPENSATION CIRCUIT
1Hz
MC68HC908LJ24/LK24 — Rev. 2.1
X
Y
X
Y
A
A
B
B
TBH
SL
X
Y
TBH = 0 => X,Y = A
TBH = 1 => X,Y = B
SECIE
ALMIE
DAYIE
Freescale Semiconductor
SECF
MINIE
ALMF
DAYF
MINF
HRIE
HRF
CHRIE
TB1IE
TB2IE
CHRF
TB1F
TB2F
INTERRUPT
LOGIC
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