MM58167BN National Semiconductor, MM58167BN Datasheet - Page 7
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MM58167BN
Manufacturer Part Number
MM58167BN
Description
IC MPU REAL TIME CLK 24 DIP
Manufacturer
National Semiconductor
Type
Clock/Calendarr
Datasheet
1.MM58167BN.pdf
(10 pages)
Specifications of MM58167BN
Memory Size
7B
Time Format
HH:MM:SS:hh:mm (24 hr)
Date Format
MM-DD-dd
Interface
Parallel
Voltage - Supply
2.2 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
24-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*MM58167BN
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Write Cycle Timing
Note 4 If data changes while CS and WR are low then they must remain coincident for 1050 ns after the data change to ensure a valid write Data bus loading is
100 pF Ready output loading is 50 pF and 3 k
Input and output AC timing levels
Read and Write Cycle Timing Diagrams
Logical one
Logical zero
Symbol
t
t
t
t
t
t
t
t
AW
CSW
DW
WRY
RY
RYH
WD
WA
e
e
2 0V
0 8V
Address Valid to Write Strobe
Chip Select to Write Strobe
Data Valid before Write Strobe
Write Strobe to Ready Strobe
Ready Strobe Width
Write Hold Time after Ready Strobe
Data Hold Time after Write Strobe
Address Hold Time after Write Strobe
0 C
s
T
pull-up
Parameter
A s
70 C 4 5V
FIGURE 3 Read Cycle Timing
FIGURE 4 Write Cycle Timing
s
V
DD s
7
5 5V V
SS
e
0V
Min
100
100
110
50
0
0
Max
150
800
TL F 11070– 6
TL F 11070– 7
Units
ns
ns
ns
ns
ns
ns
ns
ns