M48T59VSH 查看數據表（PDF） - STMicroelectronics
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M48T59VSH Datasheet PDF : 21 Pages
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M48T59, M48T59Y, M48T59V
Figure 2A. DIP Connections
RST
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
1
28
2
27
3
26
4
25
5
24
6
23
7 M48T59 22
8 M48T59Y 21
9
20
10
19
11
18
12
17
13
16
14
15
VCC
W
IRQ/FT
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
AI01381D
Figure 2B. SOIC Connections
RST
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
1
28
2
27
3
26
4
25
5
24
6
23
7 M48T59Y 22
8 M48T59V 21
9
20
10
19
11
18
12
17
13
16
14
15
AI01382E
VCC
W
IRQ/FT
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
Table 2. Absolute Maximum Ratings (1)
Symbol
Parameter
Value
Unit
TA
Ambient Operating Temperature
Grade 1
Grade 6
0 to 70
°C
–40 to 85
TSTG
Storage Temperature (VCC Off, Oscillator Off)
–40 to 85
°C
TSLD (2) Lead Solder Temperature for 10 seconds
260
°C
VIO
Input or Output Voltages
–0.3 to 7
V
VCC
Supply Voltage
M48T59/M48T59Y
–0.3 to 7
V
M48T59V
–0.3 to 4.6
IO
Output Current
20
mA
PD
Power Dissipation
1
W
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
VCC
E
G
Deselect
Write
Read
Read
4.75V to 5.5V
or
4.5V to 5.5V
or
3.0V to 3.6V
VIH
X
VIL
X
VIL
VIL
VIL
VIH
Deselect
VSO to VPFD (min) (2)
X
X
Deselect
≤ VSO
X
X
Note: 1. X = VIH or VIL; VSO = Battery Back-up Switchover Voltage.
2. See Table 7 for details.
W
DQ7-DQ0
Power
X
High Z
Standby
VIL
DIN
VIH
DOUT
VIH
High Z
Active
Active
Active
X
High Z
CMOS Standby
X
High Z Battery Back-up Mode
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