M48T59, M48T59Y, M48T59V
2/21
Figure 2A. DIP Connections
A1
A0
DQ0
DQ1
DQ2
VSS
A7
A6
A5
A4
A3
A2
IRQ/FT
A8
A9
A11
G
A10
E
DQ7
DQ6
W
DQ5
DQ4
DQ3
A12
RST
VCC
AI01381D
M48T59
M48T59Y
8
9
10
11
12
13
14
1
2
3
4
5
6
7
16
15
28
27
26
25
24
23
22
21
20
19
18
17
Table 2. Absolute Maximum Ratings
(1)
Symbol
Note: 1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other conditions above those indicated in the operational section
of this specification is not implied. Exposure to the absolute maximum rating conditions for extended periods of time may affect
reliability.
2.
Soldering temperature not to exceed 260°C for 10 seconds (total thermal budget not to exceed 150°C for longer than 30 seconds).
CAUTION:
Negative undershoots below –0.3V are not allowed on any pin while in the Battery Back-up mode.
CAUTION:
Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
Table 3. Operating Modes
(1)
Mode
Note: 1. X = V
IH
or V
IL
; V
SO
= Battery Back-up Switchover Voltage.
2. See Table 7 for details.
Parameter
Value
0 to 70
–40 to 85
Unit
T
A
Ambient Operating Temperature
Grade 1
Grade 6
°C
T
STG
Storage Temperature (V
CC
Off, Oscillator Off)
–40 to 85
°C
T
SLD (2)
V
IO
Lead Solder Temperature for 10 seconds
260
°C
Input or Output Voltages
–0.3 to 7
V
V
CC
Supply Voltage
M48T59/M48T59Y
M48T59V
–0.3 to 7
–0.3 to 4.6
V
I
O
P
D
Output Current
20
mA
Power Dissipation
1
W
V
CC
E
G
W
DQ7-DQ0
Power
Deselect
4.75V to 5.5V
or
4.5V to 5.5V
or
3.0V to 3.6V
V
IH
V
IL
V
IL
V
IL
X
X
High Z
Standby
Write
X
V
IL
V
IH
V
IH
D
IN
D
OUT
Active
Read
V
IL
V
IH
Active
Read
High Z
Active
Deselect
V
SO
to V
PFD
(min)
(2)
≤
V
SO
X
X
X
High Z
CMOS Standby
Deselect
X
X
X
High Z
Battery Back-up Mode
Figure 2B. SOIC Connections
AI01382E
8
9
10
11
12
13
14
2
3
4
5
6
7
22
21
20
19
18
17
16
15
28
27
26
25
24
23
1
A1
A0
DQ0
DQ1
DQ2
VSS
A7
A6
A5
A4
A3
A2
IRQ/FT
A8
A9
A11
G
A10
E
DQ7
DQ6
W
DQ5
DQ4
DQ3
A12
RST
VCC
M48T59Y
M48T59V