DS1220AB Maxim, DS1220AB Datasheet - Page 7

• Manufacturer Part Number: DS1220AB
• Description: The DS1220AB and DS1220AD 16k Nonvolatile (NV) SRAMs are 16,384-bit, fully static, NV SRAMs organized as 2048 words by 8 bits
• Manufacturer: Maxim

8. If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition,
9. Each DS1220AB and each DS1220AD has a built-in switch that disconnects the lithium source until
10. All AC and DC electrical characteristics are valid over the full operating temperature range. For
11. In a power down condition the voltage on any pin may not exceed the voltage on V
12. t
13. t
14. DS1220 modules are recognized by Underwriters Laboratories (UL) under file E99151.
DC TEST CONDITIONS
Outputs Open
Cycle = 200ns for Operating Current
All Voltages Are Referenced to Ground
ORDERING INFORMATION
DS1220AB-100+
DS1220AB-100IND+
DS1220AD-100+
DS1220AD-100IND+
+
PACKAGE INFORMATION
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a
different suffix character, but the drawing pertains to the package regardless of RoHS status.
Denotes a lead(Pb)-free/RoHS-compliant package.
PACKAGE TYPE
the output buffers remain in a high-impedance state during this period.
V
V
and is not 100% tested.
commercial products, this range is 0°C to 70°C. For industrial products (IND), this range is -40°C to
+85°C.
WR1
WR2
CC
CC
starting from the time power is first applied by the user. This parameter is guaranteed by design
is first applied by the user. The expected t
, t
, t
PART
24 EDIP
DH1
DH2
are measured from WE going high.
are measured from CE going high.
PACKAGE CODE
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
MDT24+1
7 of 8
DR
is defined as accumulative time in the absence of
AC TEST CONDITIONS
Output Load: 100 pF + 1TTL Gate
Input Pulse Levels: 0 - 3.0V
Timing Measurement Reference Levels
Input: 1.5V
Output: 1.5V
Input Pulse Rise and Fall Times: 5ns
TOLERANCE
OUTLINE NO.
5V ± 10%
5V ± 10%
SUPPLY
5V ± 5%
5V ± 5%
21-0245
PIN-PACKAGE
24 720 EDIP
24 720 EDIP
24 720 EDIP
24 720 EDIP
PATTERN NO.
CC
LAND
.

DS1220AB/AD
Note