DS1220Y-200IND+ Dallas Semiconductor, DS1220Y-200IND+ Datasheet

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DS1220Y-200IND+

Manufacturer Part Number
DS1220Y-200IND+
Description
Memory; 16k Nonvolatile SRAM; 200 ns; 5 V (Typ.); 85 mA; 200 ns; 200 ns; 1.5 V
Manufacturer
Dallas Semiconductor
Datasheet

Specifications of DS1220Y-200IND+

Capacitance, Input
5 pF
Capacitance, Output
5 pF
Current, Input, Leakage
±1 μA
Current, Operating
85 mA
Current, Output, Leakage
±1
Data Retention
10 yrs.
Density
16K
Interface
Parallel Bus
Memory Type
Non-Volatile SRAM
Organization
2K×8
Package Type
720 EMOD
Temperature, Operating
-40 to +85 °C
Time, Access
200 ns
Time, Address Hold
5
Time, Fall
5 ns
Time, Rise
5 ns
Voltage, Input, High
5 V
Voltage, Input, Low
0.8 V
Voltage, Supply
5 V
Lead Free Status / Rohs Status
RoHS Compliant part
FEATURES
DESCRIPTION
The DS1220Y 16k Nonvolatile SRAM is a 16,384-bit, fully static, nonvolatile RAM organized as 2048
words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry that
constantly monitor V
energy source is automatically switched on and write protection is unconditionally enabled to prevent
data corruption. The NV SRAM can be used in place of existing 2k x 8 SRAMs directly conforming to
the popular bytewide 24-pin DIP standard. The DS1220Y also matches the pinout of the 2716 EPROM or
the 2816 EEPROM, allowing direct substitution while enhancing performance. There is no limit on the
number of write cycles that can be executed and no additional support circuitry is required for
microprocessor interfacing.
10 years minimum data retention in the
absence of external power
Data is automatically protected during power
loss
Directly replaces 2k x 8 volatile static RAM
or EEPROM
Unlimited write cycles
Low-power CMOS
JEDEC standard 24-pin DIP package
Read and write access times as fast as 100 ns
Full ±10% operating range
Optional industrial temperature range of
-40°C to +85°C, designated IND
CC
for an out-of-tolerance condition. When such a condition occurs, the lithium
1 of 9
NOT RECOMMENDED FOR NEW DESIGNS
PIN ASSIGNMENT
PIN DESCRIPTION
A0-A10
DQ0-DQ7
V
GND
CE
WE
OE
CC
24-Pin ENCAPSULATED PACKAGE
GND
DQ0
DQ1
DQ2
16k Nonvolatile SRAM
A7
A6
A5
A4
A3
A2
A1
A0
720-mil EXTENDED
1
2
3
4
5
6
7
8
9
10
11
12
- Address Inputs
- Data In/Data Out
- Chip Enable
- Write Enable
- Output Enable
- Power (+5V)
- Ground
24
23
22
21
20
19
18
17
16
15
14
13
VCC
WE
A8
A9
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DS1220Y

Related parts for DS1220Y-200IND+

DS1220Y-200IND+ Summary of contents

Page 1

... The NV SRAM can be used in place of existing SRAMs directly conforming to the popular bytewide 24-pin DIP standard. The DS1220Y also matches the pinout of the 2716 EPROM or the 2816 EEPROM, allowing direct substitution while enhancing performance. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing ...

Page 2

ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature Caution: Do Not Reflow This is a stress rating only and functional operation of the device at these or any other conditions above those ...

Page 3

... DH1 10 t DH2 (T A DS1220Y-120 DS1220Y-150 MAX MIN MAX MIN 120 150 100 120 50 60 100 120 120 150 90 100 See Note 10; V =5.0V ± 10%) CC DS1220Y-200 UNITS MAX MIN MAX 200 ns 150 200 ns 70 100 ns 150 200 200 ns 150 NOTE ...

Page 4

POWER-DOWN/POWER-UP CONDITION SEE NOTE 11 POWER-DOWN/POWER-UP TIMING PARAMETER before Power-Down IH V Slew from Slew from after Power-Up IH PARAMETER Expected Data Retention ...

Page 5

... DS1220Y-150+ 0°C to +70°C DS1220Y-200 0°C to +70°C DS1220Y-200+ 0°C to +70°C DS1220Y-200IND -40°C to +85°C DS1220Y-200IND+ -40°C to +85°C + Denotes a lead-free/RoHS-compliant package. is defined as starting at the date TEST CONDITIONS Output Load: 100pF + 1TTL Gate Input Pulse Levels: 0-3.0V Timing Measurement Reference Levels Input:1 ...

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