M48T59 ST Microelectronics, M48T59 Datasheet - Page 2

• Manufacturer Part Number: M48T59
• Description: 64 Kbit 8Kb x8 TIMEKEEPER SRAM
• Manufacturer: ST Microelectronics

M48T59, M48T59Y, M48T59V
Figure 2A. DIP Connections
Table 2. Absolute Maximum Ratings
Note: 1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress
Table 3. Operating Modes
Note: 1. X = V
2/21
Deselect
Write
Read
Read
Deselect
Deselect
Symbol
T
Mode
T
SLD
V
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.
2. Soldering temperature not to exceed 260°C for 10 seconds (total thermal budget not to exceed 150°C for longer than 30 seconds).
2. See Table 7 for details.
V
P
T
STG
I
CC
O
IO
A
D
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)
DQ0
DQ1
DQ2
RST
V SS
A12
IH
A7
A6
A5
A4
A3
A2
A1
A0
or V
Ambient Operating Temperature
Storage Temperature (V
Lead Solder Temperature for 10 seconds
Input or Output Voltages
Supply Voltage
Output Current
Power Dissipation
IL
V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
; V
SO
SO
4.75V to 5.5V
M48T59Y
4.5V to 5.5V
3.0V to 3.6V
to V
M48T59
= Battery Back-up Switchover Voltage.
V
PFD
V
or
or
CC
SO
AI01381D
(1)
(min)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
(2)
V CC
W
IRQ/FT
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
CC
Off, Oscillator Off)
Parameter
(1)
V
V
V
V
E
X
X
IH
IL
IL
IL
V
V
G
X
X
X
X
IH
Figure 2B. SOIC Connections
IL
M48T59/M48T59Y
M48T59V
Grade 1
Grade 6
V
V
V
DQ0
DQ1
DQ2
RST
V SS
W
A12
X
X
X
IH
IH
IL
A7
A6
A5
A4
A3
A2
A1
A0
DQ7-DQ0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
High Z
High Z
High Z
High Z
D
D
OUT
IN
M48T59Y
M48T59V
–0.3 to 4.6
–40 to 85
–40 to 85
–0.3 to 7
–0.3 to 7
0 to 70
Value
260
AI01382E
Battery Back-up Mode
20
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CMOS Standby
Standby
Power
Active
Active
Active
V CC
W
IRQ/FT
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
Unit
mA
°C
°C
°C
W
V
V