NPC SM5839AP, SM5839AV Datasheet
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
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