參數(shù)資料
型號: IDT82V2088DR
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 30/78頁
文件大小: 0K
描述: IC LIU T1/J1/E1 8CH 208-TQFP
標(biāo)準(zhǔn)包裝: 12
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.13 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 208-BFQFP
供應(yīng)商設(shè)備封裝: 208-PQFP(28x28)
包裝: 托盤
其它名稱: 82V2088DR
36
INDUSTRIAL
TEMPERATURE RANGES
OCTAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
3.13 GENERAL PURPOSE I/O
The IDT82V2088 provides two general purpose digital I/O pins: GPIO1,
GPIO0. These two pins can be considered as digital Input or Output port
by the DIR1 bit (GPIO, A0H) and DIR0 bit (GPIO, A0H) respectively. If the
GPIO1 and GPIO0 are configured as Input port, the LEVEL1 bit (GPIO,
A0H) and the LEVEL0 bit (GPIO, A0H) are used to reflect the level of the
GPIO1 pin and the GPIO0 pin respectively. If the GPIO1 and GPIO0 are
configured as Output port, the content in the LEVEL1 bit and LEVEL0 bit
determines the logic value of GPIO1 pin and GPIO0 pin respectively.
3.14 5V TOLERANT I/O PINS
All digital input pins will tolerate 5.0 ± 5% volts and are compatible with
TTL logic.
3.15 RESET OPERATION
The chip can be reset in two ways:
Software Reset: Writing to the RST register (20H) will reset the chip
in 1 us.
Hardware Reset: Asserting the RST pin low for a minimum of 100 ns
will reset the chip.
After reset, all drivers output are in high impedance state, all the internal
flip-flops are reset, and all the registers are initialized to default values.
3.16 POWER SUPPLY
This chip uses a single 3.3 V power supply.
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