DS1747P-70+ Maxim Integrated Products, DS1747P-70+ Datasheet - Page 11

• Manufacturer Part Number: DS1747P-70+
• Description: IC RTC RAM Y2K 5V 70NS 34-PCM
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1747P-70+

• Memory Size: 4M (512K 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: Surface Mount
• Package / Case: 34-PowerCap™ Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC CHARACTERISTICS—WRITE CYCLE (5V)
(V
Write Cycle Time
Address Setup Time
Data Setup Time
Data Hold Time
Data Hold Time
Address Hold Time
Address Hold Time
Write Recovery Time
AC CHARACTERISTICS—WRITE CYCLE (3.3V)
(V
Write Cycle Time
Address Setup Time
Data Setup Time
Data Hold Time
Data Hold Time
Address Hold Time
Address Hold Time
Write Recovery Time
WE Pulse Width
CE Pulse Width
WE Data Off Time
WE Pulse Width
CE Pulse Width
CE and CE2 Pulse Width
WE Data Off Time
CC
CC
= 5.0V 10%, T
= 3.3V 10%, T
PARAMETER
PARAMETER
A
A
= Over the Operating Range.)
= Over the Operating Range.)
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WEW
t
t
WEW
t
CEW
WEZ
CEW
CEW
WEZ
t
t
t
t
DH1
DH2
AH1
AH2
DH1
DH2
AH1
AH2
WC
WR
WC
WR
AS
DS
AS
DS
DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs
MIN
MIN
120
100
110
110
70
50
60
30
80
10
10
0
0
0
5
5
5
0
0
0
0
11 of 16
TYP
TYP
MAX
MAX
120
25
40
UNITS
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
NOTES
8
9
8
9
8
9
8
9