DS1330W Datasheet, PDF (8/11 Pages) Dallas Semiconductor – 3.3V 256K Nonvolatile SRAM with Battery Monitor

DS1330W
9. Each DS1330W 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 prod-
ucts, 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 WE going high.
13. t_WR2 and t_DH2 are measured from CE going high.
14. RST and BW are open–drain outputs and cannot source current. External pull–up resistors should be connected
to these pins for proper operation. Both pins will sink 10 mA.
DC TEST CONDITIONS
Outputs Open
Cycle = 200 ns 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: 5 ns
ORDERING INFORMATION
DS1330 W P – SSS – III
Operating Temperature Range
blank: 0° to 70°
IND: –40° to +85°C
Access Speed
150: 150 ns
Package Type
blank: 28–pin 600 mil DIP
P:
34–pin PowerCap Module
022598 8/11