DS1217M-3-25 Maxim Integrated Products, DS1217M-3-25 Datasheet - Page 5

• Manufacturer Part Number: DS1217M-3-25
• Description: RAM READ/WRITE NV 3MEG CARTRIDGE
• Manufacturer: Maxim Integrated Products

Specifications of DS1217M-3-25

• Memory Type: NVRAM
• Memory Size: 384KB
• Speed: 250ns
• Package / Case: 30-Card Edge Cartridge Module
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

POWER-DOWN/POWER-UP CONDITION
POWER-DOWN/POWER-UP TIMING
(T
(T
WARNING: Under no circumstances are negative undershoots of any amplitude allowed when the device is in
battery-backup mode.
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
CE at V
V
(CE at V
V
(CE at V
CE at V
Expected Data Retention
Time
A
A
CC
CC
= 0°C to +70°C)
= +25°C)
Slew from 4.5V to 0
Slew from 0 to 4.5V
IH
IH
PARAMETER
PARAMETER
IH
IH
WE is high for a read cycle.
OE = V
If the CE low transition occurs simultaneously with or later than the WE high transition in Write Cycle 1, that output buffers remain in
a high-impedance state in this period.
If the CE high transition occurs prior to or simultaneously with the WE high transition in Write Cycle 1, the output buffers remain in a
high-impedance state in this period.
If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition, the output buffers remain in a high-
impedance state in this period.
Removing and installing the cartridge with power applied may disturb data.
Each DS1217M I smarked with a 4-digit code AABB. AA designates the year of manufacture. BB designates the week of
manufacture. The expected t
process control, and design. It is not measured directly during production testing.
Before Power-Down
After Power-Up
)
)
IH
or V
IL
. If OE = V
IH
during a write cycle, the output buffers remain in a high-impedance state.
DR
SYMBOL
SYMBOL
is defined as starting at the date of manufacture. This parameter is assured by component selection,
t
t
REC
t
t
PD
t
DR
R
F
(Note 9)
(Note 9)
(Note 10)
CONDITIONS
CONDITIONS
5 of 8
DS1217M Nonvolatile Read/Write Cartridge
MIN
MIN
100
0
0
2
5
TYP
TYP
MAX
MAX
125
UNITS
UNITS
years
ms
s
s
s