DS1747-70+ Maxim Integrated Products, DS1747-70+ Datasheet - Page 2

• Manufacturer Part Number: DS1747-70+
• Description: IC RTC RAM Y2K 5V 70NS 32-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1747-70+

• Memory Size: 4M (512K x 8)
• Time Format: HH:MM:SS (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
EDIP
13
14
15
17
18
19
20
21
16
22
24
29
32
—
—
10
11
12
23
25
26
27
28
30
31
—
—
1
2
3
4
5
6
7
8
9
PIN
Configuration)
Configuration)
PowerCap
(See Pin
(See Pin
16
15
14
13
12
11
10
17
34
32
30
25
24
23
22
21
20
19
18
28
29
27
26
31
33
9
8
7
6
5
3
2
1
4
X1, X2
NAME
GND
V
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
WE
V
OE
N.C.
RST
A18
A16
A14
A12
A10
A11
A13
A17
A15
CE
A7
A6
A5
A4
A3
A2
A1
A0
A9
A8
BAT
CC
DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs
Address Input
Data Input/Output
Ground
Active-Low Chip-Enable Input
Active-Low Output-Enable Input
Active-Low Write-Enable Input
Power-Supply Input
No Connection
Active-Low Power-On Reset Output
Crystal Input, Output Connections
Battery Connection
2 of 16
FUNCTION