DS2782G+T&R Maxim Integrated Products, DS2782G+T&R Datasheet - Page 27

• Manufacturer Part Number: DS2782G+T&R
• Description: IC FUEL GAUGE BATT 10-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of DS2782G+T&R

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 5. Function Commands
64-BIT UNIQUE ID
The DS2782 can be special ordered with a unique, factory-programmed ID that is 64 bits in length. The first eight
bits are the product family code (B2h for DS2782). The next 48 bits are a unique 40-bit serial number followed by
0x82h. The last eight bits are a cyclic redundancy check (CRC) of the first 56 bits (see Figure 24). The 64-bit ID
can be read as 8 bytes starting at memory address F0h. The 64-bit ID is read only.
Figure 24. 64-Bit ID Format
PACKAGE INFORMATION
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
COMMAND
FUNCTION
Recall Data
Copy Data
Lock
PACKAGE TYPE
10 TDFN-EP
8 TSSOP
8-BIT CRC
msb
EEPROM
TARGET
BLOCK
0
1
0
1
0
1
VALUE
FCMD
B2h
B4h
42h
44h
63h
66h
48-BIT SERIAL NUMBER
PACKAGE CODE
This command copies the shadow RAM to the target EEPROM block.
Copy Data commands that target locked blocks are ignored. While the
Copy Data command is executing, the EEC bit in the EEPROM register is
set to 1, and Write Data commands with MAddr set to any address within
the target block are ignored. Read Data and Write Data commands with
MAddr set outside the target block are processed while the copy is in
progress. The Copy Data command execution time, t
and starts after the FCMD byte is acknowledged. Subsequent Copy or
Lock commands must be delayed until the EEPROM programming cycle
completes.
This command recalls the contents of the targeted EEPROM block to its
shadow RAM.
This command locks (write-protects) the targeted EEPROM block. The
LOCK bit in the EEPROM register must be set to 1 before the lock
command is executed. If the LOCK bit is 0, the lock command has no
effect. The lock command is permanent; a locked block can never be
written again. The Lock command execution time, t
starts after the FCMD byte is acknowledged. Subsequent Copy or Lock
commands must be delayed until the EEPROM programming cycle
completes.
T1034+1
27 of 28
H8+2
DESCRIPTION
8-BIT FAMILY
CODE (B2h)
DOCUMENT NO.
lsb
21-0175
21-0268
EEC
EEC
, is 2ms typical and
, is 2ms typical