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DS1215 データシートの表示(PDF) - Dallas Semiconductor -> Maxim Integrated
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DS1215
Phantom time chip
Dallas Semiconductor -> Maxim Integrated
DS1215 Datasheet PDF : 15 Pages
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DS1215
AC ELECTRICAL CHARACTERISTICS ROM/RAM = GND
PARAMETER
SYMBOL MIN
TYP
Read Cycle Time
CEI Access Time
OE Access Time
CEI to Output Low Z
OE to Output Low Z
CEI to Output High Z
OE to Output High Z
Read Recovery
Write Cycle
Write Pulse Width
Write Recovery
Data Setup
Data Hold Time
CEI Pulse Width
RST Pulse Width
CEI Propagation Delay
CEI High to Power–Fail
t
RC
120
t
CO
t
OE
t
COE
10
t
OEE
10
t
OD
t
ODO
t
RR
20
t
WC
120
t
WP
100
t
WR
20
t
DS
40
t
DH
10
t
CW
100
t
RST
200
t
PD
5
10
t
PF
AC ELECTRICAL CHARACTERISTICS ROM/RAM = GND
PARAMETER
SYMBOL MIN
TYP
Recovery at Power–Up
V
CC
Slew Rate 4.5 – 3.0V
t
REC
t
F
0
CAPACITANCE
PARAMETER
Input Capacitance
Output Capacitance
SYMBOL MIN
C
IN
C
OUT
TYP
5
5
(0
°
C to 70
°
C; V
CC
= 4.5 to 5.5V)
MAX
UNITS NOTES
ns
100
ns
100
ns
ns
ns
40
ns
40
ns
ns
ns
ns
ns
4
ns
5
ns
5
ns
ns
20
ns
2, 3
0
ns
(0
°
C to 70
°
C; V
CC
> 4.5V)
MAX
UNITS NOTES
2
ms
ms
MAX
10
10
UNITS
pF
pF
(t
A
= 25
°
C)
NOTES
032697 8/15
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