FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

DETAIL "A"

R1

R2

0

L

4

L1

103

3

E E1

102

D1/4

D

D1

5

E1/4

128

1

A

A2

H

1

0.10

-C-

A1

3

65

64

e

W

2

39

38

0

SEE DETAIL "A"

MIN NOM MAX

MIN NOM MAX

A

3.4

L

0.65 0.8

0.95

A1 0.05

0.5

L1

1.95

A2 2.55

3.05 e

0.5BSC

D 23.65 23.9 24.15 0 0

7

D1 19.9 20

20.1 W 0.1

0.3

E 17.65 17.9 18.15 R1 0.13

E1 13.9 14

14.1 R2 0.13

0.3

H

Notes:

1) Coplanarity is 0.08 mm or 3.2 mils maximum.

2) Tolerance on the position of the leads is 0.080 mm maximum.

3) Package body dimensions D1 and E1 do not include the mold protrusion. Maximum

mold protrusion is 0.25 mm.

4) Dimensions for foot length L measured at the gauge plane 0.25 mm above the seating plane.

5) Details of pin 1 identifier are optional but must be located within the zone indicated.

6) Controlling dimension: millimeter

FIGURE 34 - 128 PIN QFP PACKAGE OUTLINE

257

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