MC68HC68 MOTOROLA [Motorola, Inc], MC68HC68 Datasheet - Page 2

• Manufacturer Part Number: MC68HC68
• Description: Real-Time Clock plus RAM with Serial Interface
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC68T1
2
XTAL out
CLKOUT
XTAL in
V BATT
CPUR
V SYS
MISO
MOSI
LINE
POR
PSE
SCK
INT
SS
12
10
1
3
9
2
4
6
5
7
14
15
13
11
CONTROL
POWER
SENSE
OSCILLATOR
50/60 Hz
CLOCK
LOGIC
AND
INT
STOP/START
PRESCALE
SELECT
PRESCALE
CONTROL REG
CONTROL REG
INTERRUPT
CLOCK
INTERFACE
REGISTER
CIRCUIT
STATUS
FREEZE
SERIAL
SELECT
CLOCK
BLOCK DIAGRAM
SECOND
PIN 16 = V DD
PIN 8 = V SS
SECOND
LATCH
MINUTE
COMPARATOR
MINUTE
LATCH
32 x 8
RAM
8–BIT DATA BUS
AND HOUR LOGIC
LATCH
HOUR
AM/PM
HOUR
CALENDAR
LOGIC
DATE
DAY/
MOTOROLA
MONTH
YEAR