DS1744W120IND(2010) 查看數據表（PDF） - Maxim Integrated
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DS1744W120IND Datasheet PDF : 16 Pages
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PIN DESCRIPTION
EDIP
1
2
3
4
5
6
7
8
9
10
21
23
24
25
26
11
12
13
15
16
17
18
19
14
PIN
PowerCap
32
30
25
24
23
22
21
20
19
18
28
29
27
26
31
16
15
14
13
12
11
10
9
17
NAME
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
A10
A11
A9
A8
A13
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
GND
20
8
CE
22
7
OE
27
6
WE
28
5
VCC
—
4
RST
—
1, 2, 3, 33,
34
N.C.
—
X1, X2,
VBAT
DS1744/DS1744P Y2K-Compliant, Nonvolatile Timekeeping RAMs
FUNCTION
Address Input
Data Input/Output
Ground
Active-Low Chip-Enable Input
Active-Low Output-Enable Input
Active-Low Write-Enable Input
Power-Supply Input
Active-Low Reset Output, Open Drain. Requires a pullup resistor for
proper operation.
No Connection
Crystal Connections, VBAT Battery Connection
2 of 16
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