DS1220AB_10 Datasheet, PDF (7/8 Pages) Dallas Semiconductor – 16k Nonvolatile SRAM

DS1220AB/AD
8. 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 during this period.
9. Each DS1220AB and each DS1220AD has a built-in switch that disconnects the lithium source until
V_CC is first applied by the user. The expected t_DR is defined as accumulative time in the absence of
V_CC starting from the time power is first applied by the user. This parameter is guaranteed by design
and is not 100% tested.
10. All AC and DC electrical characteristics are valid over the full operating temperature range. For
commercial products, this range is 0°C to 70°C. For industrial products (IND), this range is -40°C to
+85°C.
11. In a power down condition the voltage on any pin may not exceed the voltage on V_CC.
12. t_WR1 , t_DH1 are measured from WE going high.
13. t_WR2 , t_DH2 are measured from CE going high.
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
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
ORDERING INFORMATION
PART
TEMP RANGE
DS1220AB-100+
0°C to +70°C
DS1220AB-100IND+
-40°C to +85°C
DS1220AD-100+
0°C to +70°C
DS1220AD-100IND+
-40°C to +85°C
+Denotes a lead(Pb)-free/RoHS-compliant package.
SUPPLY
TOLERANCE
5V ± 5%
5V ± 5%
5V ± 10%
5V ± 10%
PIN-PACKAGE
24 720 EDIP
24 720 EDIP
24 720 EDIP
24 720 EDIP
PACKAGE INFORMATION
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note
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.
PACKAGE TYPE
PACKAGE CODE
OUTLINE NO.
LAND
PATTERN NO.
24 EDIP
MDT24+1
21-0245

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