DS1746-70+ Maxim Integrated Products, DS1746-70+ Datasheet - Page 9

• Manufacturer Part Number: DS1746-70+
• Description: IC RTC RAM Y2K 5V 70NS 32-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1746-70+

• Memory Size: 1M (128K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 32-DIP Module (600 mil), 32-EDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DC ELECTRICAL CHARACTERISTICS
(V
Active Supply Current
TTL Standby Current
( CE = V
CMOS Standby Current
( CE V
Input Leakage Current (any input)
Output Leakage Current
(any output)
Output Logic 1 Voltage
(I
Output Logic 0 Voltage
(I
Write Protection Voltage
Battery Switchover Voltage
AC CHARACTERISTICS—READ CYCLE (5V)
(V
Read Cycle Time
Address Access Time
OE to DQ Low-Z
OE Access Time
OE Data Off Time
Output Hold from Address
CE to DQ Low-Z
CE Access Time
CE Data Off Time
OUT
OUT
CC
CC
= 3.3V 10%, T
= 5.0V 10%, T
= -1.0 mA)
= +2.1 mA)
CC
PARAMETER
PARAMETER
IH
-0.2V)
)
A
A
= Over the Operating Range.)
= Over the Operating Range.)
SYMBOL
SYMBOL
V
Icc
Icc
V
V
V
t
Icc
I
t
t
t
t
t
I
t
t
t
CEA
OEA
CEL
CEZ
OEL
OEZ
OL
AA
OH
IL
OH
RC
OL
SO
PF
1
2
DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
9 of 16
MIN
2.80
MIN
2.4
-1
-1
70
5
5
5
V
TYP
TYP
V
or
BAT
PF
MAX
MAX
2.97
0.4
+1
+1
30
70
70
25
35
25
2
2
UNITS
UNITS
mA
mA
mA
A
A
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
NOTES
NOTES
2, 3, 10
2, 3
2, 3
1, 4
1
1
1