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参数资料
| 型号： | DS1236AS-5N |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/19页 |
| 文件大小： | 0K |
| 描述： | IC MICROMANAGER 5% IND 16-SOIC |
| 标准包装： | 45 |
| 系列： | MicroManager |
| 类型： | 备用电池电路 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 25 ms |
| 电压 - 阀值： | 4.62V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
DS1236
CAPACITANCE
(t A =25 ° C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
Output Capacitance
C IN
C OUT
5
7
pF
pF
NOTES:
1. All voltages referenced to ground. A 0.1 μ F capacitor is recommended between V CC and GND.
2. Measured with V CCO , CEO , PF, ST , PBRST , RST, RST , and NMI pin open. I BAT specified at 25 ° C.
3. I CCO1 is the maximum average load which the DS1236 can supply at V CC -0.3V through the V CCO pin
during normal 5-volt operation.
4. I CCO2 is the maximum average load which the DS1236 can supply through the V CCO pin during data
retention battery supply operation, with a maximum drop of 0.8 volts.
5. With t R = 5 μ s.
6. V CCO is approximately V BAT -0.5V at 1 μ A load.
7. Sleep mode is not invoked.
8. Sleep mode is invoked.
9. t REC is the minimum time required before CEI / CEO memory access is allowed.
10. t CE maximum must be met to ensure data integrity on power loss.
11. IN input is less than V TP but V CC greater than V CCTP .
12. All outputs except RST which is 25 μ A minimum.
13. All outputs except RST and NMI which is 25 μ A maximum.
14. Pulse width of NMI requires that the IN pin remain below V TP . If the IN pin returns to a level above
V TP for a period longer than t IPD and before the t NMI period has elapsed, the NMI pin will immediately
return to a high.
15. IN pin greater than V TP when V CC supply rises to V BAT . Example: IN tied to GND.
16. IN pin less than V TP when V CC supply rises to V BAT .
17. CEI low.
18. The WC/ SC pin contains an internal latch which drives back on to the pin. This latch requires ± 200
μ amps to switch states. The ST pin will sink ± 50 μ amps in normal operation and ± 1 μ amp in the
sleep mode.
19. ST should be active low before the watchdog is disabled (i.e., before the ST input is tristated).
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