DS2790 Maxim Integrated Products, DS2790 Datasheet - Page 8

• Manufacturer Part Number: DS2790
• Description: Programmable 1-Cell Li-Ion Fuel Gauge and Protector
• Manufacturer: Maxim Integrated Products

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FUNCTIONAL DIAGRAM
SNS1
SNS2
VDD
VDD
VSS
PLS
4
CC
DC
CP
TTCK 0:1
P0.3
FET DRIVERS
OSCILLATOR
PROTECTOR
LITHIUM ION
WATCHDOG
PRECISION
COUNTER
CONTROL
ANALOG
TIMER/
SENSE
CHARGE
TIMER
CLK DIV
PUMP
FET
&
VDD_INT
VSS_INT
P0.1/TMS
P0.4/TDO
P0.3/TCK
P0.0/TDI
CCI,
WDI
TCI
BEI
CONTROLLER
INSTRUCTION
OSCILLATOR
AND DEBUG
CONTROL
INTERRUPT
16-BIT RISC
BOOTLOAD
INTERFACE
MAXQ20
(1MHz)
CORE
A/D
JTAG
BOI, VI,
CI, TI
DS2790 Programmable 1-Cell Li-Ion Fuel Gauge and Protector
SCI,
SDI,
SNDI
INT0,
INT1
TEMPERATURE
8 of 41
(VIN - AVSS)
VOLTAGE
ANALOG REGISTERS
REGISTER FILE
I
BOOTLOADER
256 X 16 SRAM
2
DS2790
4K X 16 ROM
C INTERFACE
(PROGRAM)
(UTILITY)
EEPROM
EEPROM
BP[Offs]
4K X 16
(DATA)
64 X 16
(DATA)
AVG CURRENT
DP[0]
DP[1]
AND
CURRENT
(IS1 - IS2)
Tx
Rx
ADC / MUX
DRIVERS
ANALOG
FRONT
EEPROM
CHARGE
PORT
VREF
END
PUMP
PIN
P0.0/INT0/TDI
P0.1/INT1/TMS
P0.2/RST
P0.3/TCK
P0.4/TDO
P0.5
SDA
SCL
VIN
SNS1
IS1
IS2
SNS2
AVSS