DS1236 DALLAS, DS1236 Datasheet - Page 18

• Manufacturer Part Number: DS1236
• Description: MicroManager Chip
• Manufacturer: DALLAS

AC ELECTRICAL CHARACTERISTICS
PARAMETER
Output Current @ 2.4V
Power Sup. Trip Point
Power Supply Trip (5% Option)
IN Input Pin Current
IN Input Trip Point
PARAMETER
V
V
RESET Active Time
V
Chip Enable Propagation Delay
V
V
V
V
V
Chip Enable Output Recovery
Time
V
Chip Enable Pulse Width
Watchdog Time Delay
V
V
V
ST
ST
ST
NMI
PBRST
NMI
CC
TP
CC
CC
CC
CC
CC
CC
CC
BAT
BAT
CC
Pulse Width
to WC/
to
to
Fail Detect to RST,
Slew Rate 4.75 to 4.25
Fail to Chip Enable High
Valid to RST,
Valid to RST &
Slew to 4.24 to V
Slew 4.25 to 4.75 V
Slew 4.25 to 4.75
Valid to RST,
Pulse Width
to RST &
Detect to PF,
Detect to RST &
NMI
NMI
@ V
SC
IL
RST
RST
RST
PF
RST
BAT
RST
(RC=1)
BAT
RST
SYMBOL
SYMBOL
V
V
t
I
t
t
t
t
t
t
V
t
t
t
t
t
t
t
t
ARST
BRST
I
CCIN
t
t
t
t
t
t
NRT
CCTP
CCTP
RPD
RST
NMI
RPU
REC
STN
FPU
FB1
FB2
IPD
WC
PPF
OH
t
t
PB
PD
CE
TD
ST
CF
R
TP
F
18 of 19
MIN
MIN
4.25
4.50
-1.0
-1.0
200
300
100
100
2.5
0.1
40
40
25
20
30
25
10
30
.1
7
0
(0 C to 70 C; V
TYP
TYP
4.37
4.62
2.54
100
100
100
300
100
400
100
12
MAX
MAX
4.50
4.75
+1.0
175
175
150
500
100
150
600
200
150
2.6
20
44
50
30
30
5
2
CC
= 4.5V to 5.5V)
UNITS
UNITS
mA
ms
ms
ms
ms
ns
ns
ns
ns
ns
V
V
V
s
A
s
s
s
s
s
s
s
s
s
s
s
s
s
NOTES
NOTES
DS1236
13
14
19
17
10
11
15
16
1
1
1
5
7
8
9
7