933372800652 [NXP]
IC 4000/14000/40000 SERIES, DECIMAL DECODER/DRIVER, TRUE OUTPUT, PDSO16, PLASTIC, SOT-109-1, SO-16, Decoder/Driver;
| 型号： | 933372800652 |
| 厂家： | 
NXP |
| 描述： | IC 4000/14000/40000 SERIES, DECIMAL DECODER/DRIVER, TRUE OUTPUT, PDSO16, PLASTIC, SOT-109-1, SO-16, Decoder/Driver 驱动 光电二极管 输出元件 逻辑集成电路 |
| 文件： | 总5页 (文件大小：46K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC
• The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC
HEF4028B
MSI
1-of-10 decoder
January 1995
Product specification
File under Integrated Circuits, IC04
Philips Semiconductors
Product specification
HEF4028B
MSI
1-of-10 decoder
DESCRIPTION
The HEF4028B is a 4-bit BCD to 1-of-10 active HIGH
decoder. A 1-2-4-8 BCD code applied to inputs A0 to A3
causes the selected output to be HIGH, the other nine will
be LOW. If desired, the device may be used as a 1-of-8
decoder with enable; 3-bit octal inputs are applied to inputs
A0, A1 and A2 selecting an output O0 to O7. Input A3 then
becomes an active LOW enable, forcing the selected
output LOW when A3 is HIGH. The HEF4028B may also
be used as an 8-output (O0 to O7) demultiplexer with A0 to
A2 as address inputs and A3 as an active LOW data input.
The outputs are fully buffered for best performance.
Fig.1 Functional diagram.
HEF4028BP(N): 16-lead DIL; plastic
(SOT38-1)
HEF4028BD(F): 16-lead DIL; ceramic (cerdip)
(SOT74)
HEF4028BT(D): 16-lead SO; plastic
(SOT109-1)
( ): Package Designator North America
PINNING
Fig.2 Pinning diagram.
A0 to A3
O0 to O9
address inputs, 1-2-4-8 BCD
outputs (active HIGH)
FAMILY DATA, IDD LIMITS category MSI
See Family Specifications
January 1995
2
Philips Semiconductors
Product specification
HEF4028B
MSI
1-of-10 decoder
Fig.3 Logic diagram.
January 1995
3
Philips Semiconductors
Product specification
HEF4028B
MSI
1-of-10 decoder
TRUTH TABLE
INPUTS
OUTPUTS
A3
A2
A1
A0
O0
O1
O2
O3
O4
O5
O6
O7
O8
O9
L
L
L
L
L
L
L
H
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
H
L
L
L
H
L
L
H
H
H
H
L
L
L
H
L
L
H
H
L
L
H
L
H
H
H
H
H
H
H
H
L
L
H
L
L
H
H
L
L
H
L
H
H
H
H
(2)
L
H
L
H
H
H
Notes
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
2. Extraordinary states.
January 1995
4
Philips Semiconductors
Product specification
HEF4028B
MSI
1-of-10 decoder
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
TYPICAL EXTRAPOLATION
FORMULA
SYMBOL
TYP.
MAX.
Propagation delays
An → On
HIGH to LOW
5
100
40
30
90
40
30
60
30
20
60
30
20
200
80
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
73 ns
29 ns
22 ns
63 ns
29 ns
22 ns
10 ns
9 ns
+
+
+
+
+
+
+
+
+
+
+
+
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(1,0 ns/pF) CL
(0,42 ns/pF) CL
(0,28 ns/pF) CL
(1,0 ns/pF) CL
(0,42 ns/pF) CL
(0,28 ns/pF) CL
10
15
5
tPHL
60
180
80
LOW to HIGH
10
15
5
tPLH
tTHL
tTLH
60
Output transition times
HIGH to LOW
120
60
10
15
5
40
6 ns
120
60
10 ns
9 ns
LOW to HIGH
10
15
40
6 ns
VDD
V
TYPICAL FORMULA FOR P (µW)
2
Dynamic power
dissipation per
package (P)
5
10
15
350 fi + ∑ (foCL) × VDD
where
2
2 200 fi + ∑ (foCL) × VDD
fi = input freq. (MHz)
2
7 350 fi + ∑ (foCL) × VDD
fo = output freq. (MHz)
CL = total load cap. (pF)
∑ (foCL) = sum of outputs
VDD = supply voltage (V)
January 1995
5
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