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.
PACKAGE DIMENSIONS
Unit: mm
28-pin DIP (SM5839AP)
13.72
±
0.1
15.56
±
0.3
FEATURES
s
s
s
s
s
s
s
s
s
PINOUT
Top view
0.5755 TYP.
9.8
±
0.2
5.6
±
0.2
7.6
±
0.2
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)
1.52
±
0.05
3.81
±
0.1
0.83
±
0.3
3.18
±
0.1
2.54
0.46
±
0.05
28-pin VSOP (SM5839AV)
4.64
±
0.3
0 10
+
0.1
0.15
−
0.05
0.10
±
0.05
1.15
±
0.1
+
0.1
0.22
−
0.05
0.5 0.2
0.65
DIN0
DIN1
DIN2
DIN3
DIN4
DIN5
DIN6
DIN7
S6
1
2
3
4
28
27
26
25
VDD
ENRC
OE
DOUT0
DOUT1
DOUT2
DOUT3
DOUT4
DOUT5
DOUT6
DOUT7
S0
S1
S2
ORDERING INFORMATION
Device
SM5839AP
SM5839AV
Package
28-pin DIP
28-pin VSOP
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
S5 10
S4 11
S3 12
CLK
13
VSS 14
NIPPON PRECISION CIRCUITS—1
0.25
±
0.05
36.83
±
0.1
16.38
±
0.6
SM5839A
SM5839A
BLOCK DIAGRAM
ENRC
VDD
8
8
Variable shift
register block
8
Output
buffer
8
DOUT0
to
DOUT7
DIN0
to
DIN7
8
Multiplexer
Write address pointer
Read address pointer
CLK
7
VSS
S0 to S6
OE
PIN DESCRIPTION
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
DIN0
DIN1
DIN2
DIN3
DIN4
DIN5
DIN6
DIN7
S6
S5
S4
S3
CLK
VSS
S2
S1
S0
DOUT7
DOUT6
DOUT5
I/O
1
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
I
–
Ip
Ip
Ip
O
O
O
Data input 0
Data input 1
Data input 2
Data input 3
Data input 4
Data input 5
Data input 6
Data input 7
Register length select control 6
Register length select control 5
Register length select control 4
Register length select control 3
Clock input
Ground
Register length select control 2
Register length select control 1
Register length select control 0
Data output 7
Data output 6
Data output 5
Description
NIPPON PRECISION CIRCUITS—2
SM5839A
Number
21
22
23
24
25
26
27
28
Name
DOUT4
DOUT3
DOUT2
DOUT1
DOUT0
OE
ENRC
VDD
I/O
1
O
O
O
O
O
Ip
Ip
–
Data output 4
Data output 3
Data output 2
Data output 1
Data output 0
Output enable
Circulating/non-circulating control
Supply voltage
Description
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
SS
= 0 V
Parameter
Supply voltage range
Input voltage range
Storage temperature range
Power dissipation
Soldering temperature
Soldering time
Symbol
V
DD
V
IN
T
stg
P
D
T
sld
t
sld
Rating
−0.3
to 7.0
V
SS
−
0.3 to V
DD
+ 0.3
−40
to 125
330
255
10
Unit
V
V
°C
mW
°C
s
Recommended Operating Conditions
V
SS
= 0 V
Rating
Parameter
Symbol
Condition
min
Standard-voltage
specification
Low-voltage specification
Operating temperature
T
opr
4.5
2.7
−20
typ
–
–
–
max
5.5
4.5
70
V
V
°C
Unit
Supply voltage range
V
DD
DC Characteristics
Standard-voltage specification: V
DD
= 5.0
±
0.5 V, V
SS
= 0 V, T
a
=
−20
to 70
°C
Rating
Parameter
Standby current consumption
Operating current consumption
Input voltage
1
Symbol
I
ST
I
DD
V
IH
V
IL
Output voltage
2
Input current
3
V
OH
V
OL
I
IL
I
OH
=
−0.4
mA
I
OL
= 1.6 mA
V
IN
= 0 V
OE = 0 V, f
CLK
= 54 MHz
Condition
min
–
–
2.4
–
2.5
–
–
typ
–
30
–
–
–
–
100
max
50
50
–
V
0.5
–
V
0.4
200
µA
µA
mA
Unit
NIPPON PRECISION CIRCUITS—3
SM5839A
Rating
Parameter
Input leakage current
4
Input leakage current
1
Output high-impedance leakage
current
2
Symbol
I
LL
I
LH
I
ZH
I
ZL
Condition
min
V
IN
= 0 V
V
IN
= V
DD
V
OUT
= V
DD
V
OUT
= 0 V
–
–
–
–
typ
–
–
–
–
max
1
1
5
5
µA
µA
µA
Unit
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
DD
= 3.0
±
0.3 V, V
SS
= 0 V, T
a
=
−20
to 70
°C
Rating
Parameter
Standby current consumption
Operating current consumption
Input voltage
1
Symbol
I
ST
I
DD
V
IH
V
IL
Output voltage
2
Input current
3
Input leakage current
4
Input leakage current
1
Output high-impedance leakage
current
2
V
OH
V
OL
I
IL
I
LL
I
LH
I
ZH
I
ZL
I
OH
=
−0.4
mA
I
OL
= 1.6 mA
V
IN
= 0 V
V
IN
= 0 V
V
IN
= V
DD
V
OUT
= V
DD
V
OUT
= 0 V
OE = 0 V, f
CLK
= 20 MHz
Condition
min
–
–
2.0
–
2.0
–
–
–
–
–
–
typ
–
10
–
–
–
–
30
–
–
–
–
max
50
20
–
V
0.5
–
V
0.8
60
1
1
5
5
µA
µA
µA
µA
µA
mA
Unit
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
AC Characteristics
Standard-voltage specification: V
DD
= 5.0
±
0.5 V, V
SS
= 0 V, T
a
=
−20
to 70
°C
Rating
Parameter
CLK clock frequency
CLK rise time
CLK fall time
CLK clock pulsewidth
DIN0 to DIN7, ENRC input setup time
S0 to S6 input setup time
DIN0 to DIN7, ENRC input hold time
S0 to S6 input hold time
DOUT0 to DOUT7 output data delay
time
Symbol
f
CLK
t
CR
t
CF
t
WH
t
S1
t
S2
t
H1
t
H2
t
D
Output load circuit 1
Condition
min
–
–
–
7
2
12
2
0
–
typ
–
–
–
–
–
–
–
–
–
max
54
100
100
–
–
–
–
–
18
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Unit
NIPPON PRECISION CIRCUITS—4
SM5839A
Rating
Parameter
DOUT0 to DOUT7 output data hold
time
DOUT0 to DOUT7 output enable
delay time
DOUT0 to DOUT7 output disable
delay time
Symbol
Condition
min
t
OH
t
OEN0
, t
OEN1
t
ODE0
, t
ODE1
Output load circuit 1
Output load circuit 2
Output load circuit 2
4
–
–
typ
–
–
–
max
–
18
18
ns
ns
ns
Unit
Low-voltage specification: V
DD
= 2.7 to 4.5 V, V
SS
= 0 V, T
a
=
−20
to 70
°C
Rating
Parameter
CLK clock frequency
CLK rise time
CLK fall time
CLK clock pulsewidth
DIN0 to DIN7, ENRC input setup time
S0 to S6 input setup time
DIN0 to DIN7, ENRC input hold time
S0 to S6 input hold time
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
Symbol
f
CLK
t
CR
t
CF
t
WH
t
S1
t
S2
t
H1
t
H2
t
D
t
OH
t
OEN0
, t
OEN1
t
ODE0
, t
ODE1
Output load circuit 1
Output load circuit 1
Output load circuit 2
Output load circuit 2
Condition
min
–
–
–
10
5
22
2
0
–
7
–
–
typ
–
–
–
–
–
–
–
–
–
–
–
–
max
20
100
100
–
–
–
–
–
35
–
35
35
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
Output load circuit 1
Output pin
40pF
Output load circuit 2
500Ω
Output pin
40pF
0V (t
ODE1
, t
OEN1
)
2.6V (t
ODE0
, t
OEN0
) standard voltage type
1.6V (t
ODE0
, t
OEN0
) Low voltage type
NIPPON PRECISION CIRCUITS—5
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