DS1647-120 Maxim Integrated Products, DS1647-120 Datasheet - Page 8

• Manufacturer Part Number: DS1647-120
• Description: Real Time Clock
• Manufacturer: Maxim Integrated Products

Specifications of DS1647-120

• Function: Clock, Calendar, NV Timekeeping RAM
• Rtc Memory Size: 524288 B
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Package / Case: eDIP
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC ELECTRICAL CHARACTERISTICS
(V
PARAMETER
Read Cycle Time
Address Access Time
CE Access Time
CE Data Off Time
OE Access Time
OE Data Off Time
OE to DQ Low-Z
CE to DQ Low-Z
Output Hold from Address
Write Cycle Time
Address Setup Time
CE Pulse Width
Address Hold from End of Write
Write Pulse Width
WE Data Off Time
WE or CE Inactive Time
Data Setup Time
Data Hold Time High
CC
= 5.0V ±10%, T
A
= 0°C to +70°C.)
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WEW
t
t
t
t
t
CEW
WEZ
t
CEA
OEA
CEZ
OEZ
OEL
CEL
AH1
AH2
DH1
DH2
WC
WR
AA
OH
RC
AS
DS
8 of 12
MIN
120
120
100
30
75
10
85
25
5
5
5
0
5
0
TYP
MAX
120
120
100
40
40
40
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS1647/DS1647P
NOTES
5
6
5
6