MT90210

Preliminary Information

2-146

Figure 2 - Pin Connections

Pin Description

Pin

Name

Description

95-97,

100,

1-3,

6

S0-S2,

S3,

S4-S6,

S7

Serial Lines 0-7 (TTL compatible with internal pullups in the range 25 - 125k

Ω).

Bidirectional, time division multiplexed serial streams. According to mode selected by

MD0-2 inputs, distinct data rates can be selected at the serial port. In mode 3, these lines

are configured as inputs only. In modes 1, 2, 4 and 5, these lines become bidirectional.

7-9,

11-15

S8-S10,

S11-S15

Serial Lines 8-15. See description for S0-S7 above. In mode 3, S8-S11 are inputs and

S12-S15 are outputs. In modes 1, 2, 4 and 5 these are bidirectional lines.

18-22,

24-26

S16-S20

S21-S23

Serial Lines 16-23. See descripton for S0 - S7 above. For mode 3, these lines are outputs

and operate at 8.192 Mb/s rates. When operating in modes 1, 2, 4 and 5, these lines are

bidirectional.

27

TDO

Boundary Scan Test Data Output.

29

RDin

Read P0-P7 input clock. This input is used by the MT90210 to sample bytes coming in at

the parallel port P0-P7 lines. Typically, the user should connect CKout to this input.

30

OEser

Serial Port Output Enable (Input). On the parallel-to serial conversion direction, this input

is used by the MT90210 to know which time-slots on the serial output streams will be

placed in high-impedance. This input is sampled synchronously along with the parallel

input data before the parallel-to-serial conversion takes place. When low, output serial

channels are actively driven. When set high, the output bus drivers are disabled.

100 PIN PQFP

50

52

54

56

58

60

62

64

66

68

70

72

74

76

78

80

22

24

26

28

30

32

34

36

38

40

44

46

48

42

82

100

98

96

94

92

88

86

84

90

20

18

16

14

12

10

8

6

4

2

VSS

VDD

A6

A7

A8

A9

VDD

VSS

A10

A11

A12

VDD

VSS

RBC

WBC

VSS

S0

S2

S3

S1

PLLVSS

TD

VSS2

HC4

IDDTN

C16+

VDD2

TRST

TCK

MD0

MD1

TMS

PLLAGND

LP2

LP1

MD2

TDI

C16-

F0i

SCLK

Note: the PQFP package meets the JEDEC standard MO-108, CC1.

Critical dimensions:

Lead pitch = 0.65mm,

Body Size = 14mm x 20mm,

Package size = 17.9mm x 23.9mm.