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DS1250W
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 DS1250W 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.
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 and t DH1 are measured from W E going high.
13. t WR2 and t DH2 are measured from CE going high.
14. DS1250 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 to 2.7V
Timing Measurement Reference Levels
Input: 1.5V
Output: 1.5V
Input pulse Rise and Fall Times: 5ns
ORDERING INFORMATION
PART
DS1250W-100+
DS1250WP-100+
DS1250W-100IND+
DS1250WP-100IND+
TEMP RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
SUPPLY
TOLERANCE
3.3V ± 0.3V
3.3V ± 0.3V
3.3V ± 0.3V
3.3V ± 0.3V
PIN-PACKAGE
32 740 EDIP
34 PowerCap*
32 740 EDIP
34 PowerCap*
SPEED
GRADE (ns)
100
100
100
100
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* DS9034PC+ or DS9034PCI+ (PowerCap) required. Must be ordered separately.
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
32 EDIP
34 PCAP
PACKAGE CODE
MDT32+6
PC2+5
OUTLINE NO.
21-0245
21-0246
LAND PATTERN NO.
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