DS1646-120 Maxim Integrated Products, DS1646-120 Datasheet - Page 8
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DS1646-120
Manufacturer Part Number
DS1646-120
Description
Real Time Clock
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1646-120.pdf
(12 pages)
Specifications of DS1646-120
Function
Clock, Calendar, NV Timekeeping RAM
Rtc Memory Size
131072 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1646-120
Manufacturer:
DALLAS
Quantity:
22
Part Number:
DS1646-120
Manufacturer:
DALLAS
Quantity:
20 000
Company:
Part Number:
DS1646-120+
Manufacturer:
Maxim
Quantity:
601
AC ELECTRICAL CHARACTERISTICS
AC TEST CONDITIONS
Input Levels:
Transition Times:
CAPACITANCE
AC ELECTRICAL CHARACTERISTICS
(POWER-UP/DOWN TIMING)
PARAMETER
Read Cycle Time
Address Access Time
Output Enable Access Time
Output Enable Data Off Time
Output Enable to DQ Low-Z
Output Hold from Address
Write Cycle Time
Address Setup Time
Address Hold from End of Write
Write Pulse Width
Data Setup Time
Data Hold Time High
PARAMETER
Capacitance on All Pins (except DQ)
Capacitance on DQ Pins
PARAMETER
V
V
V
V
Power-Up
Expected Data Retention Time
(Oscillator On)
CE
CE
CE
CE
CE
WE
WE
PF
PF
SO
PF
Access Time
Data Off Time
to DQ Low-Z
Pulse Width
or
(Max) to V
(Min) to V
(Min) to V
to V
Data Off Time
or
WE
CE
PF
(Min) V
Inactive Time
at V
SO
PF
PF
IH
(Max) V
V
(Min) V
before Power-Down
CC
CC
0V to 3V
5 ns
Fall Time
Rise Time
CC
CC
Fall Time
Rise Time
SYMBOL
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
C
t
t
t
t
t
WEW
t
t
t
CEW
t
t
t
WEZ
t
t
t
CEA
OEA
OEZ
OEL
AH1
AH2
DH1
DH2
REC
CEZ
CEL
C
WC
WR
t
AA
OH
t
DR
RC
AS
DS
PD
FB
RB
DQ
R
F
I
8 of 12
MIN
MIN
MIN
120
120
100
300
30
75
10
85
25
10
15
10
5
5
5
0
5
0
0
1
0
TYP
TYP
TYP
(Over the Operating Range)
(Over the Operating Range)
MAX
MAX
MAX
120
120
100
40
40
40
10
35
7
UNITS
UNITS
UNITS
years
ms
pF
pF
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(T
DS1646/DS1646P
A
= +25°C)
NOTES
NOTES
NOTES
5
6
5
6
4