DS1744WP-120+ Maxim Integrated Products, DS1744WP-120+ Datasheet - Page 9

• Manufacturer Part Number: DS1744WP-120+
• Description: IC RTC RAM Y2K 3.3V 120NS 34-PCM
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1744WP-120+

• Memory Size: 256K (32K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 34-PowerCap™ Module
• Function: Clock/Calendar/NV Timekeeping RAM
• Rtc Memory Size: 32768 Byte
• Supply Voltage (max): 3.63 V
• Supply Voltage (min): 2.97 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Supply Current: 75 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DC ELECTRICAL CHARACTERISTICS
(V
AC CHARACTERISTICS—READ CYCLE (5V)
(V
Read Cycle Time
Address Access Time
Output Hold from Address
CE to DQ Low-Z
CE Access Time
CE Data Off Time
OE to DQ Low-Z
OE Access Time
OE Data Off Time
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
OUT
OUT
CC
CC
= 3.3V 10%, T
= 5.0V 10%,
= -1.0mA)
= +2.1mA)
PARAMETER
CC
IH
PARAMETER
)
- 0.2V)
A
T
= Over the operating range.)
A
=
Over the operating range.)
SYMBOL
SYMBOL
V
I
I
V
V
V
I
I
CC1
CC2
I
CC
OL
IL
OH
OL
SO
PF
t
t
t
t
t
t
t
t
t
CEA
OEL
OEA
OEZ
CEL
CEZ
AA
OH
RC
DS1744/DS1744P Y2K-Compliant, Nonvolatile Timekeeping RAMs
9 of 16
MIN
2.80
2.4
-1
-1
MIN
70
5
5
5
V
TYP
V
or
TYP
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
V
V
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
NOTES
2, 3, 10
2, 3
2, 3
1, 4
1
1
1