ETC HD74HC192/HD74HC193

HD74HC192/HD74HC193
Synchronous Up/Down Decade Counter (Dual Clock Line)
Synchronous Up/Down 4-bit Binary Counter (Dual Clock Line)
ADE-205-465 (Z)
1st. Edition
Sep. 2000
Description
The HD74HC192 is a decade counter, and the HD74HC193 is a binary counter. Both counters have two
separate clock inputs, an up count input and a down count input. All outputs of the flip-flops are
simultaneously triggered on the low to high transition of either clock while the other input is held high.
The direction of counting is determined by which input is clocked.
These counters may be preset by entering the desired data on the data A, data B, data C, and data D inputs.
When the load input is taken low the data is loaded independently of either clock input. This feature allows
the counters to be used as divide-by-n counters by modifying the count length with the preset inputs.
In addition both counters can also be cleared. This is accomplished by inputting a high on the clear input.
All 4 internal stages are set to a low level independently of either count input.
Both a borrow and carry output are provided to enable cascading of both up and down counting functions.
The borrow output produces a negative going pulse when the counter underflows and the carry outputs a
pulse when the counter overflows. The counters can be cascaded by connecting the carry and borrow
outputs of one device to the count up and count down inputs, respectively, of the next device.
Features
•
•
•
•
•
High Speed Operation: tpd (Clock Up or Count Down to Q) = 21 ns typ (CL = 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
HD74HC192/HD74HC193
Pin Arrangement
Data B
1
Input
Outputs
Inputs
16 VCC
QB 2
QB
QA 3
QA
B
A
15 Data A
Inputs
Clear
14 Clear
Count
Down
4
Count
Borrow
Down
13 Borrow
Count
Up
5
Count
Up
Carry
12 Carry
QC 6
QC
Load
11 Load
QD 7
QD
Outputs
Outputs
D
C
9 Data D
GND 8
(Top view)
2
10 Data C
Inputs
HD74HC192/HD74HC193
Logic Diagram
HD74HC192
Count
Down
Borrow
Count
Up
Carry
CK
R
Q
CK
S
Q
QA
Data A
CK
R
Q
CK
S
Q
QB
Data B
CK
R
Q
CK
S
Q
QC
Data C
CK
R
Q
CK
S
Q
QD
Data D
Load
Clear
3
HD74HC192/HD74HC193
HD74HC193
Count
Down
Borrow
Count
Up
Carry
CK
R
Q
CK
S
Q
QA
Data A
CK
R
Q
CK
S
Q
QB
Data B
CK
R
Q
CK
S
Q
QC
Data C
CK
R
Q
CK
S
Q
QD
Data D
Load
Clear
4
HD74HC192/HD74HC193
Timing Chart
HD74HC192
Illustrated below is the following sequence:
1.
2.
3.
4.
Clear outputs to zero.
Load (preset) to binary seven.
Count up to eight, nine, zero, one and two.
Count down to one, zero, borrow, nine, eight and seven.
Clear
Load
A
Data
Inputs
B
C
D
Count Up
Count Down
QA
QB
QC
QD
Carry
Borrow
8
Sequence
Illustrated
0
7
Clear
Preset
9
0
Count Up
1
2
1
0
9
8
7
Count Down
5
HD74HC192/HD74HC193
HD74HC193
Illustrated below is the following sequence:
1.
2.
3.
4.
Clear outputs to zero.
Load (preset) to binary thirteen.
Count up to fourteen, fifteen, zero, one and two.
Count down to one, zero, borrow, fifteen and thirteen.
Clear
Load
A
Data
Inputs
B
C
D
Count Up
Count Down
QA
QB
Outputs
QC
QD
Carry
Borrow
0
13
Clear
Preset
14
15
0
Count Up
6
1
2
1
0
15
14
Count Down
13
HD74HC192/HD74HC193
DC Characteristics
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Input voltage
VIH
2.0
1.5 —
—
1.5
—
V
4.5
3.15 —
—
3.15
—
6.0
4.2 —
—
4.2
—
2.0
—
—
0.5
—
0.5
4.5
—
—
1.35 —
1.35
6.0
—
—
1.8
—
1.8
2.0
1.9 2.0 —
1.9
—
4.5
4.4 4.5 —
4.4
—
6.0
5.9 6.0 —
5.9
—
4.5
4.18 —
—
4.13
—
I OH = –4 mA
6.0
5.68 —
—
5.63
—
I OH = –5.2 mA
2.0
—
0.0 0.1
—
0.1
4.5
—
0.0 0.1
—
0.1
6.0
—
0.0 0.1
—
0.1
4.5
—
—
0.26 —
0.33
I OL = 4 mA
6.0
—
—
0.26 —
0.33
I OL = 5.2 mA
VIL
Output voltage
VOH
VOL
Test Conditions
V
V
V
Vin = VIH or VIL I OH = –20 µA
Vin = VIH or VIL I OL = 20 µA
Input current
Iin
6.0
—
—
±0.1 —
±1.0
µA
Vin = VCC or GND
Quiescent supply
current
I CC
6.0
—
—
4.0
40
µA
Vin = VCC or GND, Iout = 0 µA
—
7
HD74HC192/HD74HC193
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Maximum clock
f max
2.0
—
—
4
—
3
MHz
4.5
—
—
20
—
16
6.0
—
—
24
—
19
Propagation delay t PLH
2.0
—
—
140 —
175
time
4.5
—
14
28
—
35
6.0
—
—
24
—
30
2.0
—
—
130 —
165
4.5
—
15
26
—
33
6.0
—
—
22
—
28
2.0
—
—
130 —
165
4.5
—
14
26
—
33
6.0
—
—
22
—
28
2.0
—
—
130 —
165
4.5
—
15
26
—
33
6.0
—
—
22
—
28
2.0
—
—
215 —
270
4.5
—
21
43
—
54
6.0
—
—
37
—
46
2.0
—
—
275 —
345
4.5
—
21
55
—
69
6.0
—
—
47
—
59
2.0
—
—
230 —
290
4.5
—
17
46
—
58
6.0
—
—
39
—
49
2.0
—
—
290 —
365
4.5
—
23
58
—
73
6.0
—
—
49
—
62
2.0
—
—
265 —
335
4.5
—
24
53
—
66
6.0
—
—
45
—
56
2.0
80
—
—
100
—
4.5
16
8
—
20
—
6.0
14
–
—
17
—
frequency
t PHL
t PLH
t PHL
t PLH
t PHL
t PLH
t PHL
t PHL
Pulse width
8
tw
ns
Test Conditions
Count up to Carry
Count down to Borrow
Count up or down to Q
Load to Q
Clear to Q
ns
HD74HC192/HD74HC193
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) (cont)
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Test Conditions
Hold time
th
2.0
5
—
—
5
—
ns
Data to Load
4.5
5
–3
—
5
—
6.0
5
—
—
5
—
2.0
100 —
—
125
—
ns
Data to Load
4.5
20
4
—
25
—
6.0
17
—
—
21
—
2.0
50
—
—
65
—
ns
Clear to Clock
4.5
10
–1
—
13
—
6.0
9
—
—
11
—
Setup time
Removal time
t su
t rem
Output rise/fall
t TLH
2.0
—
—
75
—
95
time
t THL
4.5
—
5
15
—
19
6.0
—
—
13
—
16
—
—
5
10
—
10
Input capacitance
Cin
ns
pF
9
HD74HC192/HD74HC193
Package Dimensions
Unit: mm
19.20
20.00 Max
6.30
9
1
7.40 Max
16
8
1.3
0.48 ± 0.10
7.62
2.54 Min 5.06 Max
2.54 ± 0.25
0.51 Min
1.11 Max
+ 0.13
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
DP-16
Conforms
Conforms
1.07 g
Unit: mm
10.06
10.5 Max
9
1
8
1.27
*0.42 ± 0.08
0.40 ± 0.06
0.10 ± 0.10
0.80 Max
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
5.5
16
0.20
7.80 +– 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
10
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
FP-16DA
—
Conforms
0.24 g
HD74HC192/HD74HC193
Unit: mm
9.9
10.3 Max
9
1
8
*0.42 ± 0.08
0.40 ± 0.06
0.15
*0.22 ± 0.03
0.20 ± 0.03
0.635 Max
+ 0.11
1.27
0.14 – 0.04
1.75 Max
3.95
16
+ 0.10
6.10 – 0.30
1.08
0° – 8°
0.67
0.60 +– 0.20
0.25 M
*Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
FP-16DN
Conforms
Conforms
0.15 g
11
HD74HC192/HD74HC193
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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Colophon 2.0
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