DS1323E 查看數據表（PDF） - Maxim Integrated

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DS1323E

3.3V Flexible Nonvolatile Controller with Lithium Battery Monitor

Maxim Integrated 

DS1323

NOTES:

2. All voltages referenced to ground.

3. In battery backup mode, inputs must never be below ground or above VCCO.

4. Measured with outputs open.

5. All inputs within 0.3V of ground or VCCI.

6. Measured with a load as shown in Figure 3.

7. BW and RST are open drain outputs and, as such, cannot source current. External pull-up resistors

should be connected to these pins for proper operation. Both BW and RST can sink 10mA.

8. Chip Enable Outputs CEO1 – CEO4 can only sustain leakage current in the battery backup mode.

9. tCE maximum must be met to ensure data integrity on power down.

10. CEO1 through CEO4 will be held high for a time equal to tREC after VCCI crosses VCCTP on power-up.

11. The DS1323 is recognized by Underwriters Laboratories (UL) under file E99151.

DC TEST CONDITIONS

Outputs Open

All voltages are referenced to ground

OUTPUT LOAD Figure 3

AC TEST CONDITIONS

Output Load: See below

Input Pulse Levels: 0 – 3.0V

Timing Measurement Reference Levels

Input: 1.5V

Output: 1.5V

Input Pulse Rise and Fall Times: 5ns

*INCLUDING SCOPE AND JIG CAPACITANCE

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