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參數(shù)資料
| 型號： | M48T59Y-70PC1TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| 中文描述： | 64千位8KB的x8 SRAM的計時器 |
| 文件頁數(shù)： | 2/17頁 |
| 文件大小： | 135K |
| 代理商： | M48T59Y-70PC1TR |
Symbol
Parameter
Value
Unit
T
A
Ambient Operating Temperature
0 to 70
°
C
T
STG
T
SLD (2)
Storage Temperature (V
CC
Off, Oscillator Off)
–40 to 85
°
C
Lead Solder Temperature for 10 seconds
260
°
C
V
IO
Input or Output Voltages
–0.3 to 7
V
V
CC
Supply Voltage
–0.3 to 7
V
I
O
Output Current
20
mA
P
D
Power Dissipation
1
W
Notes:
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 –0.3 volts 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)
Table 2. Absolute Maximum Ratings
(1)
Mode
V
CC
E1
E2
G
W
DQ0-DQ7
Power
Deselect
4.75V to 5.5V
or
4.5V to 5.5V
V
IH
X
X
X
High Z
Standby
Deselect
X
V
IL
X
X
High Z
Standby
Write
V
IL
V
IH
X
V
IL
D
IN
Active
Read
V
IL
V
IH
V
IL
V
IH
D
OUT
Active
Read
V
IL
V
IH
V
IH
V
IH
High Z
Active
Deselect
V
SO
to V
PFD
(min)
(2)
X
X
X
X
High Z
CMOS Standby
Deselect
≤
V
SO
X
X
X
X
High Z
Battery Back-up Mode
Notes
: 1. X = V
or V
; V
= Battery Back-up Switchover Voltage.
2. See Table 7 for details.
A1
A0
DQ0
DQ1
DQ2
VSS
A7
A6
A5
A4
A3
A2
E2
A8
A9
A11
G
A10
E1
DQ7
DQ6
W
DQ5
DQ4
DQ3
A12
FT
VCC
AI01375B
M48T58
M48T58Y
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
Figure 2A. DIP Pin Connections
AI01376B
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
E2
A8
A9
A11
G
A10
E1
DQ7
DQ6
W
DQ5
DQ4
DQ3
A12
FT
VCC
M48T58Y
Figure 2B. SOIC Pin Connections
2/17
M48T58, M48T58Y
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