MC68HC68 MOTOROLA [Motorola, Inc], MC68HC68 Datasheet - Page 5

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

MOTOROLA
NOTE: Measurement points are V IL and V IH unless otherwise noted on the AC Electrical Characteristics table.
MOSI
MISO
MOSI
NOTE: Measurement points are V OL , V OH , V IL , and V IH unless otherwise noted on the AC Electrical Characteristics table.
SCK
SCK
* Includes all probe and fixture capacitance.
SS
SS
DEVICE
Figure 3. Test Circuit
UNDER
TEST
1/f SCK
1/f SCK
t w(H)
t w(H)
t su
t su
W/R
W/R
OUTPUT
TEST POINT
A6
A6
t w(L)
t w(L)
A5
C L *
t su
A5
t r
A0
A0
Figure 1. Write Cycle
Figure 2. Read Cycle
t h
t h
t rec
t rec
tp ZL , tp ZH
* Includes all probe and fixture capacitance.
DEVICE
UNDER
TEST
t PLH , t PHL
OUTPUT
Figure 4. Test Circuit
t f
D7 O
D7 O
TEST POINT
t su
C L *
D6 O
t r
D6 O
t PLZ , t PHZ
D1 N
t h
t f
CONNECT TO V DD WHEN
TESTING t PLZ AND t PZL
CONNECT TO V SS WHEN
TESTING t PHZ AND t PZH
t h
D1 N
D0 N
D0 N
t TLH , t THL
HIGH
IMPEDANCE
— V DD
— V SS
— V DD
— V SS
— V DD
— V SS
MC68HC68T1
— V DD
— V SS
— V DD
— V SS
— V DD
— V SS
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