Rainbow Electronics DS1386 - Manual

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FEATURES
§ 8 or 32 kbytes of user NV RAM
§ Integrated NV SRAM, real time clock,
crystal, power-fail control circuit and lithium
energy source
§ Totally nonvolatile with over 10 years of
operation in the absence of power
§ Watchdog timer restarts an out-of-control
processor
§ Alarm function schedules real-time related
activities such as system wakeup
§ Programmable interrupts and square wave
output
§ All registers are individually addressable via
the address and data bus
§ Interrupt signals are active in power-down
mode
PIN ASSIGNMENT
DS1386/DS1386P
RAMified Watchdog Timekeeper
www.maxim-ic.com
1 INTB (INTB)
2
3
NC
NC
PFO
V
CC
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
4
5
6
7
8
9
10
11
12
13
14
15
16
17
SQW
NC
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
NC
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
34 INTA
X1 GND V
BAT
X2
DS1386 8k x 8
34-Pin PowerCap Module Board
(Uses DS9034PCX PowerCap)
1 INTB (INTB)
2
3
NC
NC
PFO
V
CC
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
4
5
6
7
8
9
10
11
12
13
14
15
16
17
SQW
A14
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
34 INTA
X1 GND V
BAT
X2
DS1386 32k x 8
34-Pin PowerCap Module Board
(Uses DS9034PCX PowerCap)
INTA
INTA
13
1
2
3
4
5
6
7
8
9
10
11
12
14
31
DS1386 32k x 8
32-Pin Encapsulated Package
V
CC
32
30
29
28
27
26
25
24
23
22
21
19
20
15
16 18
17
V
CC
SQW
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ5
DQ6
DQ4
DQ3
A14
A7
A5
A4
A3
A2
A1
A0
DQ1
DQ0
INTB
A12
A6
DQ2
GND
13
1
2
3
4
5
6
7
8
9
10
11
12
14
31
DS1386 8k x 8
32-Pin Encapsulated Package
NC
A7
A5
A4
A3
A2
A1
A0
DQ1
DQ0
V
CC
SQW
V
CC
WE
NC
A8
A9
A11
OE
A10
CE
DQ7
DQ5
DQ6
32
30
29
28
27
26
25
24
23
22
21
19
20
INTB
A12
A6
DQ2
GND
15
16 18
17 DQ4
DQ3