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IMP88C681中文资料

IMP88C681中文资料
IMP88C681中文资料

Semiconductor, Inc.

7891011121314151617

DUAL UART

1819202122232425262728

6543214443424140

3938373635343332313029

A3IP0WR?RD?RXDB NC TXDB OP1OP3OP5OP7CE?RESET X2

X1/CLK?RXDA NC TXDA OP0OP2OP4OP6

D 1D 3D 5D 7G N D N C I N T R D 6D 4D 2D 0

A 2I P 1A 2I P 3A 1N C V C C I P 4/I E I I P 5/I E O I P 6/I A C K I P 2

Ei88C681

CS ?RESET X2

X1/CLK ?RXDA NC TXDA OP0OP2OP4OP6

A4IP0R/WN DTACK ?

RXDB NC TXDB OP1OP3OP5OP7D 1D 3D 5D 7G N D N C I N T R N D 6D 4D 2D 0

A 3I P 1A 2I P 3A 1N C V C C I P 4I P 5I A C K N I P 2

44-PIN PLCC

44-PIN PLCC

4039383736353433323130292827262524232221

A1IP3A2IP1A3A4IPO R/W?DTACK?RxDB TxDB OP1OP3OP5OP7D1D3D5D7GND

VCC IP4IP5IACK?IP2CS?RESET?X2

X1/CLK RxDA TxDA OP0OP2OP4OP6D0D2D4D6INTR?

1234567891011121314151617181920

E i 68C 681

40-PIN DIP 4039383736353433323130292827262524232221A0IP3A1IP1A2A3IPO WRN RDN RxDB TxDB OP1OP3OP5OP7D1D3D5D7GND

VCC IP4/IEI IP5/IEO IP6/IACKN IP2CEN RESET X2X1/CLK RxDA

TxDA

OP0

OP2

OP4

OP6

D0

D2D4D6INTRN

1234567891011121314151617181920

E i 88C 681

40-PIN DIP IMP, Inc. acquired Epic products on January 26, 2001. (see press release at https://www.wendangku.net/doc/ea15103509.html,/PRESS/PR012601.htm)

Semiconductor, Inc.

The DUART provides a flow control capability to inhibit transmission from a remote device when the buffer of the receiving DUART is full, thus preventing loss of data. The DUART also provides a general purpose 16-bit counter/timer (which may also be used as a programmable bit rate generator), a multipurpose input port and a multipurpose output port.

BLOCK

DIAGRAM

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