DS1216 SmartWatch RAM/SmartWatch ROM
CAPACITANCE
(T
A
= +25°C)
PARAMETER
Input Capacitance
Output Capacitance
Expected Data Retention
SYMBOL
C
IN
C
OUT
t
DR
MIN
TYP
MAX
5
7
10
UNITS
pF
pF
years
NOTES
14
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 4.5V to 5.5V, T
A
= 0°C to +70°C.)
PARAMETER
Read Cycle Time
CE
Access Time
OE
Access Time
CE
to Output Low-Z
OE
to Output Low-Z
CE
to Output High-Z
OE
to Output High-Z
Address Setup Time (ROM)
Address Hold Time (ROM)
Read Recovery
Write Cycle Time
Write Pulse Width
Write Recovery
Data Setup Time
Data Hold Time
CE
Pulse Width
RST
Pulse Width
CE
Propagation Delay
CE
High to Power-Fail
SYMBOL
t
RC
t
CO
t
OE
t
COE
t
OEE
t
OD
t
ODO
t
AS
t
AH
t
RR
t
WC
t
WP
t
WR
t
DS
t
DH
t
CW
t
RST
t
PD
t
PF
MIN
75
TYP
MAX
UNITS
ns
NOTES
65
65
6
6
30
30
20
10
15
75
75
15
35
0
65
75
6
0
ns
ns
ns
ns
ns
ns
11
12
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
7
9
10
10
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