DS1554-70IND+ Maxim Integrated Products, DS1554-70IND+ Datasheet - Page 12

• Manufacturer Part Number: DS1554-70IND+
• Description: IC RTC RAM Y2K 5V 70NS 32-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1554-70IND+

• Memory Size: 256K (32K 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: -40°C ~ 85°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
Figure 5. Read Cycle Timing Diagram
Active Supply Current
TTL Standby Current
(
CMOS Standby Current
(
Input Leakage Current
(Any Input)
Output Leakage Current
(Any Output)
Output Logic 1 Voltage
(I
Output Logic 0 Voltage
Write Protection Voltage
Battery Switchover Voltage
CC
CE
CE
OUT
= 3.3V 10%, T
= V
V
= -1.0 mA)
PARAMETER
IH
CC
)
- 0.2V)
A
= Over the operating range.)
SYMBOL
V
V
V
I
I
V
V
I
I
I
CC1
CC2
CC
OL
OL1
OL2
IL
OH
SO
PF
(Notes 2, 3, 11)
(Notes 2, 3)
(Notes 2, 3)
(Note 1)
I
Outputs (Note 1)
I
and RST Outputs
(Notes 1, 5)
(Note 1)
(Notes 1,4)
OUT
OUT
DS1554 256k, Nonvolatile, Y2K-Compliant Timekeeping RAM
12 of 18
= 2.1 mA, DQ0–7
= 7.0 mA, IRQ/FT
CONDITIONS
MIN
2.75
2.4
-1
-1
TYP
V
V
0.7
0.7
10
or
BAT
PF
MAX
2.97
0.4
0.4
30
+1
+1
6
4
UNITS
mA
mA
mA
A
A
V
V
V
V
V