SamHop Microelectronics SM6B595 Datasheet

㆔合微科股份㈲限公司

S

AMHOP

GENERAL DESCRIPTION FEATURES

Microelectronics Corp.

SM6B595

8-BIT LED DRIVER

The SM6B595 is specifically designed for
USE in LED DISPLAY.

This device contains an 8-bit shift register,
8 bit D-type storage register an d open-drain
NMOS output drivers.

The serial output allows for cascading of the
data from the shift register to additional
devices.

PIN ASSIGNMENTS

* Maximum output terminal voltage: 30V.
* Maximum continuous drain current:100mA.
* Typical R

DS(ON) :

5 Ω
* Devices are cascadable
* Low power consumption
* Serial data transfer rate: 25 MHz.

NC

VCC

SERIN

OUT0
OUT1
OUT2
OUT3

SRCLR

G

GND

1
2
3
4
5
6
7
8
9

10

SM6B595P
20 PIN DIP

20
19
18
17
16
15
14
13
12
11

NC
GND
SEROUT
OUT7
OUT6
OUT5
OUT4
SRCK
RCK
GND

NC

VCC

SERIN

OUT0
OUT1
OUT2
OUT3

SRCLR

G

GND

1
2
3
4
5
6
7
8
9

10

SM6B595F

20 PIN SOP

20
19
18
17
16
15
14
13
12
11

NC
GND
SEROUT
OUT7
OUT6
OUT5
OUT4
SRCK
RCK
GND

Page 1

SEP, 2002

㆔合微科股份㈲限公司

S

AMHOP

PIN DESCRIPTION

Microelectronics Corp.

SM6B595

8-BIT LED DRIVER

Pin NO.

1

2

3

4-7

8

9 G

10-11 GND Ground terminal.

Pin Name

NC

Vcc

SER IN

OUT0~3

SRCLR

No connection

5V supply voltage terminal.

Input terminal of a serial-data for shift-register.

Output terminals.

Input terminal of clear signal for shift-register. When SRCLR is
low, the input shift-register is cleared.

Input terminal of output enable. All outputs (OUT0~7) do off
with "H" level of G-terminal, and do on with "L" level input.

Function Description

12 RCK

13

14-17

18

19

20

SRCK

OUT4~7

SER OUT

GND

NC

Input terminal of a clock for storage-register. Data transfer
through storage-register on the rising edge of the storage­register clock.

Input terminal of a clock for shift-register. Data transfer through
shift-register on the rising edge of the shift-register clock.

Output terminals.

Output terminal of serial-data for next SER IN terminal.

Ground terminal.

No connection.

Page 2

SEP, 2002

㆔合微科股份㈲限公司

S

AMHOP

BLOCK DIAGRAM

G

RCK

SERIN

SRCK

Microelectronics Corp.

OUT0 OUT1 OUT7

Q D

CK

D Q

CK
CLR

D Q

CK
CLR

Q D

CK

D Q

CK
CLR

SM6B595

8-BIT LED DRIVER

Q D

CK

SERIAL-OUT

SRCLR

TIMING DIAGRAM

SRCK

SER IN

SRCLR

RCK

G

Out0

Out1

Out2

Out7

Serial-out

5V
0V

5V
0V

5V
0V
5V

0V
5V

0V

Off
On

Off

Off
On
Off

5V
0V

Page 3

SEP, 2002