Datasheet SM5839AP, SM5839AV Datasheet (NPC)

SM5839A

NIPPON PRECISION CIRCUITS INC.

High-Speed Variable-Length Shift Register

OVERVIEW

The SM5839A is an 8-bit variable-length shift
resister. The input pins can be configured to function
as a 2 to 128-step shift resister. The shift clock has a
maximum frequency of 54 MHz, making it ideal for
high-speed digital signal processing.

FEATURES

■

2 to 128-step selectable variable-length shift
resister

■

Static circuitry

■

8-bit (byte) word length

■

Selectable circulating/non-circulating storage

■

54 MHz maximum operating clock frequency
(standard-voltage specification)

■

Supply voltage

• 5.0 ± 0.5 V (standard-voltage specification)

• 2.7 to 4.5 V (low-voltage specification)

■

TTL-compatible input/outputs

■

Molybdenum-gate CMOS

■

Package

• 28-pin DIP (SM5839AP)

• 28-pin VSOP (SM5839AV)

PACKAGE DIMENSIONS

Unit: mm

28-pin DIP (SM5839AP)

13.72 ± 0.1

36.83 ± 0.1

1.52 ± 0.05

3.81 ± 0.1

3.18 ± 0.1

2.54

28-pin VSOP (SM5839AV)

0.46 ± 0.05

0.83 ± 0.3

15.56 ± 0.3

4.64 ± 0.3

0.05

±

0.25

16.38 ± 0.6

PINOUT

Top view

1DIN0
2DIN1
3DIN2
4DIN3

SM5839A

5DIN4
6DIN5
7DIN6
8DIN7

9S6
10S5
11S4
12S3
13CLK
14VSS 15 S2

28 VDD
27 ENRC
26 OE
25 DOUT0
24 DOUT1
23 DOUT2
22 DOUT3
21 DOUT4
20 DOUT5
19 DOUT6
18 DOUT7
17 S0
16 S1

5.6 ± 0.2

7.6 ± 0.2

0.5755 TYP.

9.8 ± 0.2

0.65

+ 0.1

0.22 − 0.05

1.15 ± 0.1

0.10 ± 0.05

ORDERING INFORMATION

Device Package

SM5839AP 28-pin DIP
SM5839AV 28-pin VSOP

010

+ 0.1

0.15 − 0.05

0.5 0.2

NIPPON PRECISION CIRCUITS—1

BLOCK DIAGRAM

SM5839A

DIN0

to

DIN7

CLK

ENRC

8

8

Multiplexer

8

Variable shift
register block

Write address pointer

Read address pointer

7

S0 to S6 OEVSS

8

VDD

Output

buffer

8

DOUT0

to

DOUT7

PIN DESCRIPTION

Number Name I/O

1 DIN0 Ip Data input 0
2 DIN1 Ip Data input 1
3 DIN2 Ip Data input 2
4 DIN3 Ip Data input 3
5 DIN4 Ip Data input 4
6 DIN5 Ip Data input 5
7 DIN6 Ip Data input 6
8 DIN7 Ip Data input 7

9 S6 Ip Register length select control 6
10 S5 Ip Register length select control 5
11 S4 Ip Register length select control 4
12 S3 Ip Register length select control 3
13 CLK I Clock input
14 VSS – Ground
15 S2 Ip Register length select control 2
16 S1 Ip Register length select control 1
17 S0 Ip Register length select control 0
18 DOUT7 O Data output 7
19 DOUT6 O Data output 6
20 DOUT5 O Data output 5

1

Description

NIPPON PRECISION CIRCUITS—2

−

−

−

µ A

SM5839A

Number Name I/O

1

21 DOUT4 O Data output 4
22 DOUT3 O Data output 3
23 DOUT2 O Data output 2
24 DOUT1 O Data output 1
25 DOUT0 O Data output 0
26 OE Ip Output enable
27 ENRC Ip Circulating/non-circulating control
28 VDD – Supply voltage

1. Ip = input pin with pull-up resistor, I = input pin, O = output pin. All outputs are 3-state pins.

SPECIFICATIONS

Absolute Maximum Ratings

V

= 0 V

SS

Parameter Symbol Rating Unit

Supply voltage range V
Input voltage range V
Storage temperature range T
Power dissipation P
Soldering temperature T
Soldering time t

DD

IN

stg

D

sld

sld

Description

0.3 to 7.0 V

V

− 0.3 to V

SS

+ 0.3 V

DD

40 to 125

330 mW
255

10 s

° C

° C

Recommended Operating Conditions

V

= 0 V

SS

Parameter Symbol Condition

Standard-voltage

Supply voltage range V

DD

specification
Low-voltage specification 2.7 – 4.5 V

Operating temperature T

opr

DC Characteristics

Standard-voltage specification: V

Parameter Symbol Condition

Standby current consumption I
Operating current consumption I

Input voltage

Output voltage

Input current

1

2

3

= 5.0 ± 0.5 V , V

DD

ST

DD

V

IH

V

IL

V

OH

V

OL

I

IL

OE = 0 V, f

I

OH

I

OL

V

IN

Rating

min typ max

4.5 – 5.5 V

20 – 70

= 0 V, T

SS

= − 20 to 70 ° C

a

Rating

min typ max

––50 µ A

= 54 MHz – 30 50 mA

CLK

2.4 – –
– – 0.5

= − 0.4 mA 2.5 – –

= 1.6 mA – – 0.4

= 0 V – 100 200

Unit

° C

Unit

V

V

NIPPON PRECISION CIRCUITS—3

SM5839A

Parameter Symbol Condition

Input leakage current
Input leakage current

Output high-impedance leakage

2

current

4

1

I

LL

I

LH

I

ZH

I

ZL

1. All inputs (CLK, DIN0 to DIN7, S0 to S6, OE, ENRC)

2. All outputs (DOUT0 to DOUT7)

3. Inputs DIN0 to DIN7, S0 to S6, OE, ENRC

4. Input CLK only

Low-voltage specification: V

= 3.0 ± 0.3 V , V

DD

Parameter Symbol Condition

Standby current consumption I
Operating current consumption I

Input voltage

Output voltage

Input current
Input leakage current
Input leakage current

Output high-impedance leakage
current

1

2

3

4

1

2

ST

DD

V

IH

V

IL

V

OH

V

OL

I

IL

I

LL

I

LH

I

ZH

I

ZL

1. All inputs (CLK, DIN0 to DIN7, S0 to S6, OE, ENRC)

2. All outputs (DOUT0 to DOUT7)

3. Inputs DIN0 to DIN7, S0 to S6, OE, ENRC

4. Input CLK only

Rating

min typ max

V

= 0 V – – 1

IN

V

= V

IN

DD

V

= V

OUT

DD

V

= 0 V – – 5

OUT

= 0 V, T

SS

= − 20 to 70 ° C

a

––1 µ A
––5

Rating

min typ max

––50 µ A

OE = 0 V, f

= 20 MHz – 10 20 mA

CLK

2.0 – –
– – 0.5

I

= − 0.4 mA 2.0 – –

OH

I

= 1.6 mA – – 0.8

OL

V

= 0 V – 30 60

IN

V

= 0 V – – 1

IN

V

= V

IN

DD

V

= V

OUT

DD

V

= 0 V – – 5

OUT

––1 µ A
––5

Unit

µ A

µ A

Unit

V

V

µ A
µ A

µ A

AC Characteristics

Standard-voltage specification: V

Parameter Symbol Condition

CLK clock frequency f
CLK rise time t
CLK fall time t
CLK clock pulsewidth t
DIN0 to DIN7, ENRC input setup time t
S0 to S6 input setup time t
DIN0 to DIN7, ENRC input hold time t
S0 to S6 input hold time t
DOUT0 to DOUT7 output data delay

time

= 5.0 ± 0.5 V , V

DD

CLK

CR

CF

WH

S1

S2

H1

H2

t

D

= 0 V, T

SS

= − 20 to 70 ° C

a

Rating

Unit

min typ max

– – 54 MHz
– – 100 ns
– – 100 ns
7––ns
2––ns

12 – – ns

2––ns
0––ns

Output load circuit 1 – – 18 ns

NIPPON PRECISION CIRCUITS—4

SM5839A

Parameter Symbol Condition

min typ max

DOUT0 to DOUT7 output data hold
time

DOUT0 to DOUT7 output enable
delay time

DOUT0 to DOUT7 output disable
delay time

t

OEN0

t

ODE0

t

OH

, t

, t

Output load circuit 1 4 – – ns

Output load circuit 2 – – 18 ns

OEN1

Output load circuit 2 – – 18 ns

ODE1

Low-voltage specification: VDD = 2.7 to 4.5 V, VSS = 0 V, Ta = −20 to 70 °C

Parameter Symbol Condition

CLK clock frequency f
CLK rise time t
CLK fall time t
CLK clock pulsewidth t
DIN0 to DIN7, ENRC input setup time t
S0 to S6 input setup time t
DIN0 to DIN7, ENRC input hold time t
S0 to S6 input hold time t
DOUT0 to DOUT7 output data delay

time
DOUT0 to DOUT7 output data hold

time
DOUT0 to DOUT7 output enable

delay time
DOUT0 to DOUT7 output disable

delay time

t

OEN0

t

ODE0

CLK

CR

CF

WH

S1

S2

H1

H2

t

t

OH

D

, t

, t

Output load circuit 1 – – 35 ns

Output load circuit 1 7 – – ns

Output load circuit 2 – – 35 ns

OEN1

Output load circuit 2 – – 35 ns

ODE1

min typ max

– – 20 MHz
– – 100 ns
– – 100 ns

10 – – ns

5––ns

22 – – ns

2––ns
0––ns

Rating

Unit

Rating

Unit

Output load circuit 1

Output pin

Output load circuit 2

Output pin

40pF

40pF

500Ω

0V (tODE1, tOEN1)

2.6V (tODE0, tOEN0) standard voltage type

1.6V (tODE0, tOEN0) Low voltage type

NIPPON PRECISION CIRCUITS—5

TIMING DIAGRAM

SM5839A

CLK

DIN to DIN7

ENRC

S0 to S6

OE

DOUT0 to DOUT7

tH1

tH2

tODE

tWH

1/fCLK

tS1

tS2

(tODE1)

∆V

∆V

(t

ODE0)

tH1

tS1 tS1tH1

tH2

Hi-Z

∆V=0.1VDD

t

OEN

90%

10%

tCF

(t

OEN1)

OEN0)

(t

tCR

tOH

D

t

Invalid

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

NIPPON PRECISION CIRCUITS—6

FUNCTIONAL DESCRIPTION

SM5839A

Initialization

After power is first applied, up to a maximum of 128
input data cycles are considered invalid. However,
any cycle that momentarily sets the register length to
2 steps (by setting S1 to S6 all LOW) and then to the
desired value is considered to be the first valid cycle.

Resister Length Select

The S0 to S6 inputs set the register length (L) to the
decimal-value given by the following equation using
positive logic (HIGH = 1 and LOW = 0).

L = 64 ⋅ (S6) + 32 ⋅ (S5) + 16 ⋅ (S4) + 8 ⋅ (S3) +

4 ⋅ (S2) + 2 ⋅ (S1) + (S0) + 1

Length S6 S5 S4 S3 S2 S1 S0

128 1111111
127 1111110
126 1111101
125 1111100

↓ ↓↓↓↓↓↓↓

66 1000001
65 1000000
64 0111111

↓ ↓↓↓↓↓↓↓

3 0000010
2 000000×

Clock and Output Control

Input

ENRC CLK OE DOUT0 to DOUT7

××L – High impedance
××H – Enabled

HL → H × Circulating –

LL → H × Non-circulating –

Shift register

Output

NIPPON PRECISION CIRCUITS—7

SM5839A

NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to
improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for
the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits
are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision Cir­cuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.
The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or mal­function of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including
compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirectly, any
products without first obtaining required licenses and approvals from appropriate government agencies.

NIPPON PRECISION CIRCUITS INC.
4-3, 2-chome Fukuzumi

Koto-ku, Tokyo 135-8430, Japan

NIPPON PRECISION CIRCUITS INC.

Telephone: [phone]
Facsimile: 03-3642-6698

NC9615BE 1999.10

NIPPON PRECISION CIRCUITS—8