MA007AH datasheet(2/16 Pages) MEGAWIN

Part #	MA007AH

Description	3-in-1 8-bit serial to parallel latch

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Manufacturer	MEGAWIN [Megawin Technology Co., Ltd]

Direct Link	http://www.megawin.com.tw/megawin_EN/Index.asp

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MA007A Technical Summary

MEGAWIN

General Description

The

MA007

are

high-speed

Si-gate

CMOS

devices. There are three groups 8-stage serial

shift register with a storage register and 3-state

outputs in MA007. The shift register and storage

register have separate clocks. Data is shifted on

the positive-going transitions of the SCLK input.

The data in each register is transferred to the

storage register on a positive-going transition of

the PCLK input. If both clocks are connected

together, the shift register will always be one clock

pulse ahead of the storage register. The shift

register has a serial input (DINx) and a serial

standard output (DOUTx) for cascading. It is also

provided with asynchronous reset (active LOW)

for all 8 stages shift register. The storage register

has 8 parallel 3-state bus driver outputs. Data in

the storage register appears at the output

whenever the output enable input (/OE) is LOW.

Pad Description

Pad No.

Pad Name

I/O

Description

1

/OE

I

Output enable (active LOW)

2

PCLK

I

Parallel register clock input

3

/SCLR

I

Serial register reset (active LOW)

4

SCLK

I

Shift register clock input

5, 6, 7

DIN0, DIN1, DIN2

I

Serial data input

10, 9, 8

DOUT0, DOUT1, DOUT2

O

Serial data output

20 to 13

Q20 to Q27

O

Parallel data group 2 output

29 to 22

Q10 to Q17

O

Parallel data group 1 output

38 to 31

Q00 to Q07

O

Parallel data group 0 output

12, 30, 40

VCC

P

Positive supply voltage

11, 21, 39, 41

GND

P

Power ground (0 V)

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