MC68HC68T1 Datasheet, PDF (5/26 Pages) Motorola, Inc – Real-Time Clock plus RAM with Serial Interface

SS
tsu
SCK
tw(H)
1/fSCK
tr
tw(L)
trec
th
tf
th
tsu
MOSI
W/R A6 A5
A0
D7O
D6O
D0N
D1N
NOTE: Measurement points are VIL and VIH unless otherwise noted on the AC Electrical Characteristics table.
Figure 1. Write Cycle
— VDD
— VSS
— VDD
— VSS
— VDD
— VSS
— VDD
SS
— VSS
tsu
tw(L)
trec
tr
tf
th
— VDD
SCK
tw(H)
th
1/fSCK
tsu
MOSI
W/R _{A6 A5}
A0
tPLH, tPHL
tpZL, tpZH
tPLZ, tPHZ
— VSS
— VDD
— VSS
MISO
D7O
D6O
D1N D0N
HIGH
IMPEDANCE
tTLH, tTHL
NOTE: Measurement points are VOL, VOH, VIL, and VIH unless otherwise noted on the AC Electrical Characteristics table.
Figure 2. Read Cycle
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
CONNECT TO VDD WHEN
TESTING tPLZ AND tPZL
CONNECT TO VSS WHEN
TESTING tPHZ AND tPZH
* Includes all probe and fixture capacitance.
Figure 3. Test Circuit
* Includes all probe and fixture capacitance.
Figure 4. Test Circuit
MOTOROLA
MC68HC68T1
5