SN74FB1650

18BIT TTL/BTL UNIVERSAL STORAGE TRANSCEIVER

SCBS178O − AUGUST 1992 − REVISED MARCH 2004

3

POST OFFICE BOX 655303

functional block diagram

To Eight Other Channels

1D

C2

C1

1D

C2

C1

1OEB

1OEB

1CLKAB

1LEAB

1LEBA

1CLKBA

1OEA

1OEA

1AI1

1AO1

1B1

81

80

83

82

85

84

87

86

90

89

76

−0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−1.2 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B port

−1.2 V to 3.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−0.5 V to 3.5 V

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−40 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B port

−18 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

48 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B port

200 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

22

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.