DS1743W-120IND+ Maxim Integrated Products, DS1743W-120IND+ Datasheet - Page 2

• Manufacturer Part Number: DS1743W-120IND+
• Description: IC RTC RAM Y2K 3.3V 120NS 28EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1743W-120IND+

• Memory Size: 64K (8K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 28-DIP Module (600 mil), 28-EDIP
• Function: Clock/Calendar/NV Timekeeping RAM
• Rtc Memory Size: 8192 Byte
• Supply Voltage (max): 3.63 V
• Supply Voltage (min): 2.97 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Supply Current: 15 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN DESCRIPTION
PDIP
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
PIN
PowerCap
1, 2, 3,
31–34
30
25
24
23
22
21
20
19
18
16
15
14
17
13
12
11
10
9
NAME
GND
N.C.
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A12
A7
A6
A5
A4
A3
A2
A1
A0
No Connection
Address Input
Data Input/
Output
Ground
Data Input/
Output
FUNCTION
DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
2 of 16
PDIP
20
21
22
23
24
25
26
27
28
—
—
—
PIN
PowerCap
28
29
27
26
—
8
7
6
5
4
NAME
X1, X2
V
A10
A11
CE2
RST
WE
V
OE
CE
A9
A8
BAT
CC
Chip Enable,
Active Low
Address Input
Output Enable,
Active Low
Address Input
Chip Enable 2
Write Enable,
Active Low
Power-Supply
Input
Power-On Reset
Output, Active
Low
Crystal
Connection
Battery
Connection
FUNCTION