Benefon Twin, Руководство по обслуживанию

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08.02.2002
4c2300gb.fm 9
Product:TGP71EU & TGP73EU / OC2300
5.1.1.3 Memory
The memories consists of Flash SRAM and EEPROM. The Flash and RAM are
16 bits wide with total size of 32Mbit (Flash) and 4Mbit (RAM). The EEPROM is
a 2-Wire Serial memory with the size of 128kbit.
5.1.1.4 Display
The Display is a Seiko Epson FSTN LCD module (100*48 dots 2.7V) The
module have a possibility to be driven either in parallel or serial mode.
5.1.1.5 Power management
The power management is mainly handled by the Analog Device Regulator
(ADP3401) wich consists of four LDOs, charge pump (5V) for SIM card and
logic level translations for SIM card (3 to 5V). The chip also handles the
charging of the litium battery for the real time clock.
The charging of main battery is made so that the charger gives a constant
current and its switched in the phone to the right level for the battery. The
battery is Lithium, Lithium Polymer or Nickel Metal Hydride, NiMH.