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PDF HD151012 Data sheet ( Hoja de datos )
| Número de pieza | HD151012 | |
| Descripción | 8-bit Binary Programmable Counter with Synchronous Preset Enable | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HD151012
8-bit Binary Programmable Counter with Synchronous Preset
Enable
ADE-205-132 (Z)
Preliminary
1st. Edition
Mar. 1996
Description
The HD151012 has 8-bit binary down counter and D-type Flip Flop. The counter can set up to max 256
counts and synchronous preset (SPE) input can preset the data. When the count value is 0, the next clock
pulse presets the data to invert the output. D-type Flip Flop takes the counter output as clock pulse, whose
data is transferred to output at the rise edge. It is applied to generate AC signal for STN type liquid crystal
and general-use divider.
Features
• High speed operation
tpd (CLK or CLK to Q) = 35 ns (typ)
• High output current
Fanout of 10 LS TTL Loads
• Wide operating voltage
VCC = 2 to 6 V
• Low supply current (Ta = 25°C)
ICC (Static) = 4 µA (max)
1 page  
HD151012
Electrical Characteristics
Item
High level input
voltage
Symbol
VIH
VCC
2.0
4.5
6.0
2.0
4.5
6.0
Low level input
voltage
VIL
2.0
4.5
6.0
2.0
4.5
6.0
High level output VOH
voltage
2.0
4.5
6.0
4.5
6.0
Low level output
voltage
VOL
2.0
4.5
6.0
4.5
6.0
Input capacitance IIN
Supply current
I CC
6.0
6.0
Ta = 25°C
Min Typ
1.5 —
3.15 —
4.2 —
1.5 —
3.15 —
4.2 —
——
——
——
——
——
——
1.9 2.0
4.4 4.5
5.9 6.0
4.18 4.31
5.68 5.80
— 0.0
— 0.0
— 0.0
— 0.17
— 0.18
——
——
Max
—
—
—
—
—
—
0.5
1.35
1.8
0.5
1.35
1.8
—
—
—
—
—
0.1
0.1
0.1
0.26
0.26
±0.1
4.0
Ta =
–40 to 85°C
Min Max Unit
1.5 — V
3.15 —
4.2 —
1.5 —
3.15 —
4.2 —
— 0.5 V
— 1.35
— 1.8
— 0.5
— 1.35
— 1.8
1.9 — V
4.4 —
5.9 —
4.13 —
5.63 —
— 0.1 V
— 0.1
— 0.1
— 0.33
— 0.33
— ±1.0 mA
— 40.0 mA
Test Conditions
J0 to J7
SPE
PR, CLR
CLK, CLK
J0 to J7
SPE
PR, CLR
CLK, CLK
VIN =
VIH or VIL
IOH = –20 mA
VIN =
VIH or VIL
IOH = –4 mA
IOH = –5.2 mA
IOL = 20 mA
IOL = 4 mA
IOL = 5.2 mA
VIN = VCC or GND
VIN = VCC or GND
5
5 Page 
Timing Chart
CLK
SPE
J0
J1
J2
J3
J4
J5
J6
J7
(CO=SPE)
CLR
(Initialize of CLR)
Q
PR
(Initialize of PR)
Q
Count
HD151012
5 4 3 2 1 0 3 2 1 0 35 34
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet HD151012.PDF ] | |
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