DS1486-120+ Maxim Integrated Products, DS1486-120+ Datasheet - Page 2

• Manufacturer Part Number: DS1486-120+
• Description: IC TIMEKEEPER RAM 128K 32-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Watchdog Timer/NVSRAMr

Specifications of DS1486-120+

• Memory Size: 1M (128K x 8)
• Time Format: HH:MM:SS:hh (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 32-DIP Module (600 mil), 32-EDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN DESCRIPTION
PDIP
10
11
12
23
25
26
27
28
31
13
14
15
17
18
19
20
21
16
22
24
29
30
32
—
—
—
—
1
2
3
4
5
6
7
8
9
PIN
PowerCap
32
30
25
24
23
22
21
20
19
18
28
29
27
26
31
16
15
14
13
12
11
10
17
—
33
34
1
3
2
9
8
7
6
5
4
INTB (INTB)
X1, X2, V
INTA/SQW
NAME
INTA
GND
SQW
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
PFO
A16
A14
A12
A10
A11
A13
A15
WE
V
OE
A7
A6
A5
A4
A3
A2
A1
A0
A9
A8
CE
CC
BAT
Active-Low Interrupt B, Output, Push-Pull
Address Input
Data Input/Output
Ground
Active-Low Chip Enable
Active-Low Output Enable
Active-Low Write Enable
Active-Low, Interrupt A, Open-Drain Output and Square-Wave
Output, Shared. Note: Both functions must not be enabled at the same
time, or a conflict could occur.
Power-Supply Input
Active-Low Power-Fail Output, Open Drain. Requires a pullup
resistor for proper operation.
Square-Wave Output
Active-Low Interrupt A, Output, Open Drain. Requires a pullup
resistor for proper operation.
Crystal Connections and Battery Connection
2 of 14
FUNCTION