SM5839A [NPC]
High-Speed Variable-Length Shift Register; 高速可变长度移位寄存器
| 型号： | SM5839A |
| 厂家： | 
NIPPON PRECISION CIRCUITS INC |
| 描述： | High-Speed Variable-Length Shift Register |
| 文件： | 总8页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SM5839A
High-Speed Variable-Length Shift Register
NIPPON PRECISION CIRCUITS INC.
OVERVIEW
PACKAGE DIMENSIONS
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.
Unit: mm
28-pin DIP (SM5839AP)
FEATURES
■ 2 to 128-step selectable variable-length shift
resister
36.83 ± 0.1
■ Static circuitry
1.52 ± 0.05
■ 8-bit (byte) word length
■ Selectable circulating/non-circulating storage
■ 54 MHz maximum operating clock frequency
(standard-voltage specification)
■ Supply voltage
0.46 ± 0.05
2.54
• 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 VSOP (SM5839AV)
• 28-pin DIP (SM5839AP)
• 28-pin VSOP (SM5839AV)
PINOUT
0
10
0.5755 TYP.
Top view
9.8 ± 0.2
+ 0.1
0.5 0.2
0.65
0.22 − 0.05
DIN0
DIN1
DIN2
DIN3
DIN4
DIN5
DIN6
DIN7
S6
1
2
3
4
5
6
7
8
9
28 VDD
27 ENRC
26 OE
25 DOUT0
24 DOUT1
23 DOUT2
22 DOUT3
21 DOUT4
20 DOUT5
19 DOUT6
18 DOUT7
17 S0
ORDERING INFORMATION
Device
Package
SM5839AP
SM5839AV
28-pin DIP
28-pin VSOP
S5 10
S4 11
S3 12
CLK 13
VSS 14
16 S1
15 S2
NIPPON PRECISION CIRCUITS—1
SM5839A
BLOCK DIAGRAM
VDD
ENRC
8
8
Variable shift
register block
DOUT0
to
8
8
DOUT7
Output
buffer
Multiplexer
DIN0
to
8
Write address pointer
Read address pointer
DIN7
7
CLK
VSS
S0 to S6
OE
PIN DESCRIPTION
1
Number
1
Name
DIN0
DIN1
DIN2
DIN3
DIN4
DIN5
DIN6
DIN7
S6
I/O
Description
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
Ip
I
Data input 0
2
Data input 1
3
Data input 2
4
Data input 3
5
Data input 4
6
Data input 5
7
Data input 6
8
Data input 7
9
Register length select control 6
Register length select control 5
Register length select control 4
Register length select control 3
Clock input
10
11
12
13
14
15
16
17
18
19
20
S5
S4
S3
CLK
VSS
S2
–
Ground
Ip
Ip
Ip
O
O
O
Register length select control 2
Register length select control 1
Register length select control 0
Data output 7
S1
S0
DOUT7
DOUT6
DOUT5
Data output 6
Data output 5
NIPPON PRECISION CIRCUITS—2
SM5839A
1
Number
21
Name
DOUT4
DOUT3
DOUT2
DOUT1
DOUT0
OE
I/O
Description
O
O
O
O
O
Ip
Ip
–
Data output 4
22
Data output 3
23
Data output 2
24
Data output 1
25
Data output 0
26
Output enable
27
ENRC
VDD
Circulating/non-circulating control
Supply voltage
28
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
−0.3 to 7.0
Unit
V
Supply voltage range
Input voltage range
V
DD
V
V
− 0.3 to V + 0.3
V
IN
SS
DD
Storage temperature range
Power dissipation
T
−40 to 125
330
°C
mW
°C
s
stg
P
D
Soldering temperature
Soldering time
T
255
sld
t
10
sld
Recommended Operating Conditions
V
= 0 V
SS
Rating
typ
Parameter
Symbol
Condition
Unit
min
max
Standard-voltage
specification
4.5
–
5.5
V
Supply voltage range
V
DD
Low-voltage specification
2.7
–
–
4.5
70
V
Operating temperature
T
−20
°C
opr
DC Characteristics
Standard-voltage specification: V = 5.0 ± 0.5 V, V = 0 V, T = −20 to 70 °C
DD
SS
a
Rating
Parameter
Symbol
Condition
Unit
min
–
typ
–
max
50
50
–
Standby current consumption
Operating current consumption
I
µA
ST
I
OE = 0 V, f = 54 MHz
–
30
–
mA
DD
CLK
V
2.4
–
IH
1
Input voltage
V
V
–
0.5
–
IL
V
I
= −0.4 mA
= 1.6 mA
= 0 V
2.5
–
–
OH
OH
2
Output voltage
V
V
I
–
0.4
200
OL
OL
3
Input current
I
V
–
100
µA
IL
IN
NIPPON PRECISION CIRCUITS—3
SM5839A
Rating
Parameter
Symbol
Condition
Unit
min
–
typ
–
max
1
4
Input leakage current
I
V
= 0 V
µA
µA
LL
IN
1
Input leakage current
I
V
= V
DD
–
–
1
LH
IN
I
V
= V
DD
–
–
5
ZH
OUT
Output high-impedance leakage
current
µA
2
I
V
= 0 V
–
–
5
ZL
OUT
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 = 0 V, T = −20 to 70 °C
DD
SS
a
Rating
Parameter
Symbol
Condition
Unit
min
–
typ
–
max
50
20
–
Standby current consumption
Operating current consumption
I
µA
ST
I
OE = 0 V, f = 20 MHz
–
10
–
mA
DD
CLK
V
2.0
–
IH
1
Input voltage
V
V
V
–
0.5
–
IL
V
I
= −0.4 mA
= 1.6 mA
= 0 V
2.0
–
–
OH
OH
2
Output voltage
V
I
–
0.8
60
1
OL
OL
3
Input current
I
V
–
30
–
µA
µA
µA
IL
IN
4
Input leakage current
I
V
= 0 V
–
LL
IN
1
Input leakage current
I
V
= V
DD
–
–
1
LH
IN
I
V
= V
DD
–
–
5
ZH
OUT
Output high-impedance leakage
current
µA
2
I
V
= 0 V
–
–
5
ZL
OUT
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 = 5.0 ± 0.5 V, V = 0 V, T = −20 to 70 °C
DD
SS
a
Rating
Parameter
CLK clock frequency
Symbol
Condition
Unit
min
–
typ
–
max
54
100
100
–
f
MHz
ns
CLK
CLK rise time
t
–
–
CR
CLK fall time
t
–
–
ns
CF
CLK clock pulsewidth
t
7
–
ns
WH
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
t
2
–
–
ns
S1
t
12
2
–
–
ns
S2
t
–
–
ns
H1
t
0
–
–
ns
H2
DOUT0 to DOUT7 output data delay
time
t
Output load circuit 1
–
–
18
ns
D
NIPPON PRECISION CIRCUITS—4
SM5839A
Rating
typ
Parameter
Symbol
Condition
Unit
min
max
DOUT0 to DOUT7 output data hold
time
t
Output load circuit 1
Output load circuit 2
Output load circuit 2
4
–
–
–
–
ns
ns
ns
OH
DOUT0 to DOUT7 output enable
delay time
t
, t
–
–
18
18
OEN0 OEN1
DOUT0 to DOUT7 output disable
delay time
t
, t
ODE0 ODE1
Low-voltage specification: V = 2.7 to 4.5 V, V = 0 V, T = −20 to 70 °C
DD
SS
a
Rating
Parameter
CLK clock frequency
Symbol
Condition
Unit
min
–
typ
–
max
20
100
100
–
f
MHz
ns
CLK
CLK rise time
t
–
–
CR
CLK fall time
t
–
–
ns
CF
CLK clock pulsewidth
t
10
5
–
ns
WH
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
t
–
–
ns
S1
t
22
2
–
–
ns
S2
t
–
–
ns
H1
t
0
–
–
ns
H2
DOUT0 to DOUT7 output data delay
time
t
Output load circuit 1
Output load circuit 1
Output load circuit 2
Output load circuit 2
–
7
–
–
–
–
–
–
35
–
ns
ns
ns
ns
D
DOUT0 to DOUT7 output data hold
time
t
OH
DOUT0 to DOUT7 output enable
delay time
t
, t
35
35
OEN0 OEN1
DOUT0 to DOUT7 output disable
delay time
t
, t
ODE0 ODE1
Output load circuit 1
Output pin
40pF
Output load circuit 2
500Ω
Output pin
0V (tODE1, tOEN1)
2.6V (tODE0, tOEN0) standard voltage type
1.6V (tODE0, tOEN0) Low voltage type
40pF
NIPPON PRECISION CIRCUITS—5
SM5839A
TIMING DIAGRAM
tCF
tCR
90%
10%
1.5V
1.5V
CLK
tWH
1/fCLK
tS1
tH1
tH1
DIN to DIN7
tS1
tH1
tH2
tS1
ENRC
1.5V
tH2
tS2
S0 to S6
1.5V
1.5V
1.5V
OE
tD
tODE
tOEN
tOH
(tODE1)
∆V
(tOEN1)
Hi-Z
DOUT0 to DOUT7
∆V
(tOEN0)
(tODE0)
Invalid
∆V=0.1VDD
NIPPON PRECISION CIRCUITS—6
SM5839A
FUNCTIONAL DESCRIPTION
Initialization
Clock and Output Control
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.
Input
Output
Shift register
ENRC
CLK
×
OE
L
DOUT0 to DOUT7
×
×
H
L
–
–
High impedance
×
H
×
Enabled
Resister Length Select
L→ H
L→ H
Circulating
Non-circulating
–
–
×
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
128
127
126
125
↓
S6
1
1
1
1
↓
1
1
0
↓
0
0
S5
1
1
1
1
↓
0
0
1
↓
0
0
S4
1
1
1
1
↓
0
0
1
↓
0
0
S3
1
1
1
1
↓
0
0
1
↓
0
0
S2
1
1
1
1
↓
0
0
1
↓
0
0
S1
1
1
0
0
↓
0
0
1
↓
1
0
S0
1
0
1
0
↓
66
1
65
0
64
1
↓
↓
3
0
2
×
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 Cir-
cuits 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 mal-
function 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
Telephone: 03-3642-6661
NIPPON PRECISION CIRCUITS INC.
Facsimile: 03-3642-6698
NC9615BE 1999.10
NIPPON PRECISION CIRCUITS—8
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