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参数资料
| 型号： | DS2438Z+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/29页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR SMART BATTERY 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 智能电池 |
| 电源电压： | 2.4 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
DS2438
Page 1 (01h)
The second page, Page 1, contains the ICA, elasped time meter, and current offset data. Both the ETM
and ICA are volatile read/write locations so that they may be set, changed, or cleared by the host
software. Bytes 0-3 contain the ETM data, formatted as described in the “Operation - Elapsed Time
Meter” section. Byte 4 contains the 8-bit ICA. Bytes 5 and 6 contain the Offset Register data. Byte 7 is
reserved and will read out as all “1”s.
Page 2 (02h)
The third page of memory (Page 2) contains the Disconnect (first 4 bytes) and End of Charge (remaining
4 bytes) timestamps. This page is volatile and read/write. Refer to the “Operation – Elapsed Time Meter”
section for the formatting of these locations.
Pages 3-7 (03h - 07h)
The remainder of the memory in the DS2438 (Pages 3 through 7) is backed with EEPROM. This memory
provides 40 bytes of user memory which may be used to carry any information the user wishes to store.
Additionally, the CCA/DCA information is stored in bytes 4-7 of page 7 if the DS2438 is configured
appropriately. If the CCA/DCA is used, page 7 should not be written to or current accumulator data will
be overwritten. See “Operation-Current Accumulators” for details.
MEMORY MAP Figure 7
PAGE
0
BYTE
0
1
2
3
4
5
6
7
CONTENTS
STATUS/
CONFIGURATION
TEMPERATURE
LSB
TEMPERATURE
MSB
VOLTAGE LSB
VOLTAGE MSB
CURRENT LSB
CURRENT MSB
THRESHOLD
R/W
R/W
R
R
R
R
R
R
R/W
NV
YES
NO
NO
NO
NO
NO
NO
YES
PAGE
3
BYTE
0
1
2
3
4
5
6
7
CONTENTS
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
NV
YES
YES
YES
YES
YES
YES
YES
YES
1
2
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
ETM BYTE 0
ETM BYTE 1
ETM BYTE 2
ETM BYTE 3
ICA
OFFSET LSB
OFFSET MSB
RESERVED
DISCONNECT
BYTE 0
DISCONNECT
BYTE 1
DISCONNECT
BYTE 2
DISCONNECT
BYTE 3
END OF CHARGE
BYTE 0
END OF CHARGE
BYTE 1
END OF CHARGE
BYTE 2
END OF CHARGE
BYTE 3
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
NO
NO
NO
NO
NO
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
·
·
·
4
7
·
·
·
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE
·
·
·
USER BYTE
USER BYTE
USER BYTE
USER BYTE
USER BYTE/
CCA LSB
USER BYTE/
CCA MSB
USER BYTE/
DCA LSB
USER BYTE/
DCA MSB
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
·
·
·
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
YES
YES
YES
YES
YES
YES
YES
YES
·
·
·
YES
YES
YES
YES
YES
YES
YES
YES
16 of 29
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